tint: const eval of pow builtin

Bug: tint:1581
Change-Id: I11999f0adbd4b12d362e8f47772ac0a625b8fa68
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/113821
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>

src/tint/intrinsics.def

@@ -531,8 +531,8 @@ fn ldexp<N: num, T: f32_f16>(vec<N, T>, vec<N, i32>) -> vec<N, T>
 @const fn pack2x16unorm(vec2<f32>) -> u32
 @const fn pack4x8snorm(vec4<f32>) -> u32
 @const fn pack4x8unorm(vec4<f32>) -> u32
-fn pow<T: f32_f16>(T, T) -> T
+@const fn pow<T: fa_f32_f16>(T, T) -> T
-fn pow<N: num, T: f32_f16>(vec<N, T>, vec<N, T>) -> vec<N, T>
+@const fn pow<N: num, T: fa_f32_f16>(vec<N, T>, vec<N, T>) -> vec<N, T>
 @const fn quantizeToF16(f32) -> f32
 @const fn quantizeToF16<N: num>(vec<N, f32>) -> vec<N, f32>
 @const fn radians<T: fa_f32_f16>(T) -> T

src/tint/resolver/const_eval.cc

@@ -204,10 +204,10 @@ std::string OverflowErrorMessage(VALUE_TY value, std::string_view target_ty) {
 }
 
 template <typename NumberT>
-std::string OverflowExpErrorMessage(std::string_view base, NumberT value) {
+std::string OverflowExpErrorMessage(std::string_view base, NumberT exp) {
     std::stringstream ss;
     ss << std::setprecision(20);
-    ss << base << "^" << value << " cannot be represented as "
+    ss << base << "^" << exp << " cannot be represented as "
        << "'" << FriendlyName<NumberT>() << "'";
     return ss.str();
 }
@@ -463,6 +463,7 @@ struct Composite : ImplConstant {
 /// CreateElement constructs and returns an Element<T>.
 template <typename T>
 ImplResult CreateElement(ProgramBuilder& builder, const Source& source, const type::Type* t, T v) {
+    static_assert(IsNumber<T> || std::is_same_v<T, bool>, "T must be a Number or bool");
     TINT_ASSERT(Resolver, t->is_scalar());
 
     if constexpr (IsFloatingPoint<T>) {
@@ -3075,6 +3076,23 @@ ConstEval::Result ConstEval::pack4x8unorm(const type::Type* ty,
     return CreateElement(builder, source, ty, ret);
 }
 
+ConstEval::Result ConstEval::pow(const type::Type* ty,
+                                 utils::VectorRef<const sem::Constant*> args,
+                                 const Source& source) {
+    auto transform = [&](const sem::Constant* c0, const sem::Constant* c1) {
+        auto create = [&](auto e1, auto e2) -> ImplResult {
+            auto r = CheckedPow(e1, e2);
+            if (!r) {
+                AddError(OverflowErrorMessage(e1, "^", e2), source);
+                return utils::Failure;
+            }
+            return CreateElement(builder, source, c0->Type(), *r);
+        };
+        return Dispatch_fa_f32_f16(create, c0, c1);
+    };
+    return TransformElements(builder, ty, transform, args[0], args[1]);
+}
+
 ConstEval::Result ConstEval::radians(const type::Type* ty,
                                      utils::VectorRef<const constant::Constant*> args,
                                      const Source& source) {

src/tint/resolver/const_eval.h

@@ -833,6 +833,15 @@ class ConstEval {
                         utils::VectorRef<const constant::Constant*> args,
                         const Source& source);
 
+    /// pow builtin
+    /// @param ty the expression type
+    /// @param args the input arguments
+    /// @param source the source location
+    /// @return the result value, or null if the value cannot be calculated
+    Result pow(const type::Type* ty,
+               utils::VectorRef<const sem::Constant*> args,
+               const Source& source);
+
     /// radians builtin
     /// @param ty the expression type
     /// @param args the input arguments

src/tint/resolver/const_eval_builtin_test.cc

@@ -1971,6 +1971,54 @@ INSTANTIATE_TEST_SUITE_P(  //
     testing::Combine(testing::Values(sem::BuiltinType::kPack2X16Unorm),
                      testing::ValuesIn(Pack2x16unormCases())));
 
+template <typename T>
+std::vector<Case> PowCases() {
+    auto error_msg = [](auto base, auto exp) {
+        return "12:34 error: " + OverflowErrorMessage(base, "^", exp);
+    };
+    return {
+        C({T(0), T(1)}, T(0)),          //
+        C({T(0), T::Highest()}, T(0)),  //
+        C({T(1), T(1)}, T(1)),          //
+        C({T(1), T::Lowest()}, T(1)),   //
+        C({T(2), T(2)}, T(4)),          //
+        C({T(2), T(3)}, T(8)),          //
+        // Positive base, negative exponent
+        C({T(1), T::Highest()}, T(1)),  //
+        C({T(1), -T(1)}, T(1)),         //
+        C({T(2), -T(2)}, T(0.25)),      //
+        C({T(2), -T(3)}, T(0.125)),     //
+        // Decimal values
+        C({T(2.5), T(3)}, T(15.625)),                      //
+        C({T(2), T(3.5)}, T(11.313708498)).FloatComp(),    //
+        C({T(2.5), T(3.5)}, T(24.705294220)).FloatComp(),  //
+        C({T(2), -T(3.5)}, T(0.0883883476)).FloatComp(),   //
+
+        // Vector tests
+        C({Vec(T(0), T(1), T(2)), Vec(T(2), T(2), T(2))}, Vec(T(0), T(1), T(4))),
+        C({Vec(T(2), T(2), T(2)), Vec(T(2), T(3), T(4))}, Vec(T(4), T(8), T(16))),
+
+        // Error if base < 0
+        E({-T(1), T(1)}, error_msg(-T(1), T(1))),
+        E({-T(1), T::Highest()}, error_msg(-T(1), T::Highest())),
+        E({T::Lowest(), T(1)}, error_msg(T::Lowest(), T(1))),
+        E({T::Lowest(), T::Highest()}, error_msg(T::Lowest(), T::Highest())),
+        E({T::Lowest(), T::Lowest()}, error_msg(T::Lowest(), T::Lowest())),
+
+        // Error if base == 0 and exp <= 0
+        E({T(0), T(0)}, error_msg(T(0), T(0))),
+        E({T(0), -T(1)}, error_msg(T(0), -T(1))),
+        E({T(0), T::Lowest()}, error_msg(T(0), T::Lowest())),
+    };
+}
+INSTANTIATE_TEST_SUITE_P(  //
+    Pow,
+    ResolverConstEvalBuiltinTest,
+    testing::Combine(testing::Values(sem::BuiltinType::kPow),
+                     testing::ValuesIn(Concat(PowCases<AFloat>(),  //
+                                              PowCases<f32>(),     //
+                                              PowCases<f16>()))));
+
 template <typename T>
 std::vector<Case> ReverseBitsCases() {
     using B = BitValues<T>;

src/tint/resolver/const_eval_test.h

@@ -238,10 +238,10 @@ std::string OverflowErrorMessage(VALUE_TY value, std::string_view target_ty) {
 
 /// Returns the overflow error message for exponentiation
 template <typename NumberT>
-std::string OverflowExpErrorMessage(std::string_view base, NumberT value) {
+std::string OverflowExpErrorMessage(std::string_view base, NumberT exp) {
     std::stringstream ss;
     ss << std::setprecision(20);
-    ss << base << "^" << value << " cannot be represented as "
+    ss << base << "^" << exp << " cannot be represented as "
        << "'" << FriendlyName<NumberT>() << "'";
     return ss.str();
 }

src/tint/resolver/intrinsic_table.inl

@@ -12797,24 +12797,24 @@ constexpr OverloadInfo kOverloads[] = {
     /* num parameters */ 2,
     /* num template types */ 1,
     /* num template numbers */ 0,
-    /* template types */ &kTemplateTypes[26],
+    /* template types */ &kTemplateTypes[23],
     /* template numbers */ &kTemplateNumbers[10],
     /* parameters */ &kParameters[622],
     /* return matcher indices */ &kMatcherIndices[3],
     /* flags */ OverloadFlags(OverloadFlag::kIsBuiltin, OverloadFlag::kSupportsVertexPipeline, OverloadFlag::kSupportsFragmentPipeline, OverloadFlag::kSupportsComputePipeline),
-    /* const eval */ nullptr,
+    /* const eval */ &ConstEval::pow,
   },
   {
     /* [376] */
     /* num parameters */ 2,
     /* num template types */ 1,
     /* num template numbers */ 1,
-    /* template types */ &kTemplateTypes[26],
+    /* template types */ &kTemplateTypes[23],
     /* template numbers */ &kTemplateNumbers[4],
     /* parameters */ &kParameters[624],
     /* return matcher indices */ &kMatcherIndices[30],
     /* flags */ OverloadFlags(OverloadFlag::kIsBuiltin, OverloadFlag::kSupportsVertexPipeline, OverloadFlag::kSupportsFragmentPipeline, OverloadFlag::kSupportsComputePipeline),
-    /* const eval */ nullptr,
+    /* const eval */ &ConstEval::pow,
   },
   {
     /* [377] */
@@ -14345,8 +14345,8 @@ constexpr IntrinsicInfo kBuiltins[] = {
   },
   {
     /* [60] */
-    /* fn pow<T : f32_f16>(T, T) -> T */
+    /* fn pow<T : fa_f32_f16>(T, T) -> T */
-    /* fn pow<N : num, T : f32_f16>(vec<N, T>, vec<N, T>) -> vec<N, T> */
+    /* fn pow<N : num, T : fa_f32_f16>(vec<N, T>, vec<N, T>) -> vec<N, T> */
     /* num overloads */ 2,
     /* overloads */ &kOverloads[375],
   },

test/tint/builtins/gen/literal/pow/04a908.wgsl.expected.dxc.hlsl

@@ -1,5 +1,5 @@
 void pow_04a908() {
-  float4 res = pow((1.0f).xxxx, (1.0f).xxxx);
+  float4 res = (1.0f).xxxx;
 }
 
 struct tint_symbol {

test/tint/builtins/gen/literal/pow/04a908.wgsl.expected.fxc.hlsl

@@ -1,5 +1,5 @@
 void pow_04a908() {
-  float4 res = pow((1.0f).xxxx, (1.0f).xxxx);
+  float4 res = (1.0f).xxxx;
 }
 
 struct tint_symbol {

test/tint/builtins/gen/literal/pow/04a908.wgsl.expected.glsl

@@ -1,7 +1,7 @@
 #version 310 es
 
 void pow_04a908() {
-  vec4 res = pow(vec4(1.0f), vec4(1.0f));
+  vec4 res = vec4(1.0f);
 }
 
 vec4 vertex_main() {
@@ -21,7 +21,7 @@ void main() {
 precision mediump float;
 
 void pow_04a908() {
-  vec4 res = pow(vec4(1.0f), vec4(1.0f));
+  vec4 res = vec4(1.0f);
 }
 
 void fragment_main() {
@@ -35,7 +35,7 @@ void main() {
 #version 310 es
 
 void pow_04a908() {
-  vec4 res = pow(vec4(1.0f), vec4(1.0f));
+  vec4 res = vec4(1.0f);
 }
 
 void compute_main() {

test/tint/builtins/gen/literal/pow/04a908.wgsl.expected.msl

@@ -2,7 +2,7 @@
 
 using namespace metal;
 void pow_04a908() {
-  float4 res = pow(float4(1.0f), float4(1.0f));
+  float4 res = float4(1.0f);
 }
 
 struct tint_symbol {

test/tint/builtins/gen/literal/pow/04a908.wgsl.expected.spvasm

@@ -1,10 +1,9 @@
 ; SPIR-V
 ; Version: 1.3
 ; Generator: Google Tint Compiler; 0
-; Bound: 32
+; Bound: 30
 ; Schema: 0
                OpCapability Shader
-         %14 = OpExtInstImport "GLSL.std.450"
                OpMemoryModel Logical GLSL450
                OpEntryPoint Vertex %vertex_main "vertex_main" %value %vertex_point_size
                OpEntryPoint Fragment %fragment_main "fragment_main"
@@ -32,35 +31,34 @@
        %void = OpTypeVoid
           %9 = OpTypeFunction %void
     %float_1 = OpConstant %float 1
-         %16 = OpConstantComposite %v4float %float_1 %float_1 %float_1 %float_1
+         %14 = OpConstantComposite %v4float %float_1 %float_1 %float_1 %float_1
 %_ptr_Function_v4float = OpTypePointer Function %v4float
-         %19 = OpTypeFunction %v4float
+         %17 = OpTypeFunction %v4float
  %pow_04a908 = OpFunction %void None %9
          %12 = OpLabel
         %res = OpVariable %_ptr_Function_v4float Function %5
-         %13 = OpExtInst %v4float %14 Pow %16 %16
+               OpStore %res %14
-               OpStore %res %13
                OpReturn
                OpFunctionEnd
-%vertex_main_inner = OpFunction %v4float None %19
+%vertex_main_inner = OpFunction %v4float None %17
-         %21 = OpLabel
+         %19 = OpLabel
-         %22 = OpFunctionCall %void %pow_04a908
+         %20 = OpFunctionCall %void %pow_04a908
                OpReturnValue %5
                OpFunctionEnd
 %vertex_main = OpFunction %void None %9
-         %24 = OpLabel
+         %22 = OpLabel
-         %25 = OpFunctionCall %v4float %vertex_main_inner
+         %23 = OpFunctionCall %v4float %vertex_main_inner
-               OpStore %value %25
+               OpStore %value %23
                OpStore %vertex_point_size %float_1
                OpReturn
                OpFunctionEnd
 %fragment_main = OpFunction %void None %9
-         %27 = OpLabel
+         %25 = OpLabel
-         %28 = OpFunctionCall %void %pow_04a908
+         %26 = OpFunctionCall %void %pow_04a908
                OpReturn
                OpFunctionEnd
 %compute_main = OpFunction %void None %9
-         %30 = OpLabel
+         %28 = OpLabel
-         %31 = OpFunctionCall %void %pow_04a908
+         %29 = OpFunctionCall %void %pow_04a908
                OpReturn
                OpFunctionEnd

test/tint/builtins/gen/literal/pow/46e029.wgsl.expected.dxc.hlsl

@@ -1,5 +1,5 @@
 void pow_46e029() {
-  float res = pow(1.0f, 1.0f);
+  float res = 1.0f;
 }
 
 struct tint_symbol {

test/tint/builtins/gen/literal/pow/46e029.wgsl.expected.fxc.hlsl

@@ -1,5 +1,5 @@
 void pow_46e029() {
-  float res = pow(1.0f, 1.0f);
+  float res = 1.0f;
 }
 
 struct tint_symbol {

test/tint/builtins/gen/literal/pow/46e029.wgsl.expected.glsl

@@ -1,7 +1,7 @@
 #version 310 es
 
 void pow_46e029() {
-  float res = pow(1.0f, 1.0f);
+  float res = 1.0f;
 }
 
 vec4 vertex_main() {
@@ -21,7 +21,7 @@ void main() {
 precision mediump float;
 
 void pow_46e029() {
-  float res = pow(1.0f, 1.0f);
+  float res = 1.0f;
 }
 
 void fragment_main() {
@@ -35,7 +35,7 @@ void main() {
 #version 310 es
 
 void pow_46e029() {
-  float res = pow(1.0f, 1.0f);
+  float res = 1.0f;
 }
 
 void compute_main() {

test/tint/builtins/gen/literal/pow/46e029.wgsl.expected.msl

@@ -2,7 +2,7 @@
 
 using namespace metal;
 void pow_46e029() {
-  float res = pow(1.0f, 1.0f);
+  float res = 1.0f;
 }
 
 struct tint_symbol {

test/tint/builtins/gen/literal/pow/46e029.wgsl.expected.spvasm

@@ -1,10 +1,9 @@
 ; SPIR-V
 ; Version: 1.3
 ; Generator: Google Tint Compiler; 0
-; Bound: 31
+; Bound: 29
 ; Schema: 0
                OpCapability Shader
-         %14 = OpExtInstImport "GLSL.std.450"
                OpMemoryModel Logical GLSL450
                OpEntryPoint Vertex %vertex_main "vertex_main" %value %vertex_point_size
                OpEntryPoint Fragment %fragment_main "fragment_main"
@@ -33,33 +32,32 @@
           %9 = OpTypeFunction %void
     %float_1 = OpConstant %float 1
 %_ptr_Function_float = OpTypePointer Function %float
-         %18 = OpTypeFunction %v4float
+         %16 = OpTypeFunction %v4float
  %pow_46e029 = OpFunction %void None %9
          %12 = OpLabel
         %res = OpVariable %_ptr_Function_float Function %8
-         %13 = OpExtInst %float %14 Pow %float_1 %float_1
+               OpStore %res %float_1
-               OpStore %res %13
                OpReturn
                OpFunctionEnd
-%vertex_main_inner = OpFunction %v4float None %18
+%vertex_main_inner = OpFunction %v4float None %16
-         %20 = OpLabel
+         %18 = OpLabel
-         %21 = OpFunctionCall %void %pow_46e029
+         %19 = OpFunctionCall %void %pow_46e029
                OpReturnValue %5
                OpFunctionEnd
 %vertex_main = OpFunction %void None %9
-         %23 = OpLabel
+         %21 = OpLabel
-         %24 = OpFunctionCall %v4float %vertex_main_inner
+         %22 = OpFunctionCall %v4float %vertex_main_inner
-               OpStore %value %24
+               OpStore %value %22
                OpStore %vertex_point_size %float_1
                OpReturn
                OpFunctionEnd
 %fragment_main = OpFunction %void None %9
-         %26 = OpLabel
+         %24 = OpLabel
-         %27 = OpFunctionCall %void %pow_46e029
+         %25 = OpFunctionCall %void %pow_46e029
                OpReturn
                OpFunctionEnd
 %compute_main = OpFunction %void None %9
-         %29 = OpLabel
+         %27 = OpLabel
-         %30 = OpFunctionCall %void %pow_46e029
+         %28 = OpFunctionCall %void %pow_46e029
                OpReturn
                OpFunctionEnd

test/tint/builtins/gen/literal/pow/4a46c9.wgsl.expected.dxc.hlsl

@@ -1,5 +1,5 @@
 void pow_4a46c9() {
-  float3 res = pow((1.0f).xxx, (1.0f).xxx);
+  float3 res = (1.0f).xxx;
 }
 
 struct tint_symbol {

test/tint/builtins/gen/literal/pow/4a46c9.wgsl.expected.fxc.hlsl

@@ -1,5 +1,5 @@
 void pow_4a46c9() {
-  float3 res = pow((1.0f).xxx, (1.0f).xxx);
+  float3 res = (1.0f).xxx;
 }
 
 struct tint_symbol {

test/tint/builtins/gen/literal/pow/4a46c9.wgsl.expected.glsl

@@ -1,7 +1,7 @@
 #version 310 es
 
 void pow_4a46c9() {
-  vec3 res = pow(vec3(1.0f), vec3(1.0f));
+  vec3 res = vec3(1.0f);
 }
 
 vec4 vertex_main() {
@@ -21,7 +21,7 @@ void main() {
 precision mediump float;
 
 void pow_4a46c9() {
-  vec3 res = pow(vec3(1.0f), vec3(1.0f));
+  vec3 res = vec3(1.0f);
 }
 
 void fragment_main() {
@@ -35,7 +35,7 @@ void main() {
 #version 310 es
 
 void pow_4a46c9() {
-  vec3 res = pow(vec3(1.0f), vec3(1.0f));
+  vec3 res = vec3(1.0f);
 }
 
 void compute_main() {

test/tint/builtins/gen/literal/pow/4a46c9.wgsl.expected.msl

@@ -2,7 +2,7 @@
 
 using namespace metal;
 void pow_4a46c9() {
-  float3 res = pow(float3(1.0f), float3(1.0f));
+  float3 res = float3(1.0f);
 }
 
 struct tint_symbol {

test/tint/builtins/gen/literal/pow/4a46c9.wgsl.expected.spvasm

@@ -1,10 +1,9 @@
 ; SPIR-V
 ; Version: 1.3
 ; Generator: Google Tint Compiler; 0
-; Bound: 34
+; Bound: 32
 ; Schema: 0
                OpCapability Shader
-         %15 = OpExtInstImport "GLSL.std.450"
                OpMemoryModel Logical GLSL450
                OpEntryPoint Vertex %vertex_main "vertex_main" %value %vertex_point_size
                OpEntryPoint Fragment %fragment_main "fragment_main"
@@ -33,36 +32,35 @@
           %9 = OpTypeFunction %void
     %v3float = OpTypeVector %float 3
     %float_1 = OpConstant %float 1
-         %17 = OpConstantComposite %v3float %float_1 %float_1 %float_1
+         %15 = OpConstantComposite %v3float %float_1 %float_1 %float_1
 %_ptr_Function_v3float = OpTypePointer Function %v3float
-         %20 = OpConstantNull %v3float
+         %18 = OpConstantNull %v3float
-         %21 = OpTypeFunction %v4float
+         %19 = OpTypeFunction %v4float
  %pow_4a46c9 = OpFunction %void None %9
          %12 = OpLabel
-        %res = OpVariable %_ptr_Function_v3float Function %20
+        %res = OpVariable %_ptr_Function_v3float Function %18
-         %13 = OpExtInst %v3float %15 Pow %17 %17
+               OpStore %res %15
-               OpStore %res %13
                OpReturn
                OpFunctionEnd
-%vertex_main_inner = OpFunction %v4float None %21
+%vertex_main_inner = OpFunction %v4float None %19
-         %23 = OpLabel
+         %21 = OpLabel
-         %24 = OpFunctionCall %void %pow_4a46c9
+         %22 = OpFunctionCall %void %pow_4a46c9
                OpReturnValue %5
                OpFunctionEnd
 %vertex_main = OpFunction %void None %9
-         %26 = OpLabel
+         %24 = OpLabel
-         %27 = OpFunctionCall %v4float %vertex_main_inner
+         %25 = OpFunctionCall %v4float %vertex_main_inner
-               OpStore %value %27
+               OpStore %value %25
                OpStore %vertex_point_size %float_1
                OpReturn
                OpFunctionEnd
 %fragment_main = OpFunction %void None %9
-         %29 = OpLabel
+         %27 = OpLabel
-         %30 = OpFunctionCall %void %pow_4a46c9
+         %28 = OpFunctionCall %void %pow_4a46c9
                OpReturn
                OpFunctionEnd
 %compute_main = OpFunction %void None %9
-         %32 = OpLabel
+         %30 = OpLabel
-         %33 = OpFunctionCall %void %pow_4a46c9
+         %31 = OpFunctionCall %void %pow_4a46c9
                OpReturn
                OpFunctionEnd

test/tint/builtins/gen/literal/pow/4f33b2.wgsl.expected.dxc.hlsl

@@ -1,5 +1,5 @@
 void pow_4f33b2() {
-  vector<float16_t, 4> res = pow((float16_t(1.0h)).xxxx, (float16_t(1.0h)).xxxx);
+  vector<float16_t, 4> res = (float16_t(1.0h)).xxxx;
 }
 
 struct tint_symbol {

test/tint/builtins/gen/literal/pow/4f33b2.wgsl.expected.glsl

@@ -2,7 +2,7 @@
 #extension GL_AMD_gpu_shader_half_float : require
 
 void pow_4f33b2() {
-  f16vec4 res = pow(f16vec4(1.0hf), f16vec4(1.0hf));
+  f16vec4 res = f16vec4(1.0hf);
 }
 
 vec4 vertex_main() {
@@ -23,7 +23,7 @@ void main() {
 precision mediump float;
 
 void pow_4f33b2() {
-  f16vec4 res = pow(f16vec4(1.0hf), f16vec4(1.0hf));
+  f16vec4 res = f16vec4(1.0hf);
 }
 
 void fragment_main() {
@@ -38,7 +38,7 @@ void main() {
 #extension GL_AMD_gpu_shader_half_float : require
 
 void pow_4f33b2() {
-  f16vec4 res = pow(f16vec4(1.0hf), f16vec4(1.0hf));
+  f16vec4 res = f16vec4(1.0hf);
 }
 
 void compute_main() {

test/tint/builtins/gen/literal/pow/4f33b2.wgsl.expected.msl

@@ -2,7 +2,7 @@
 
 using namespace metal;
 void pow_4f33b2() {
-  half4 res = pow(half4(1.0h), half4(1.0h));
+  half4 res = half4(1.0h);
 }
 
 struct tint_symbol {

test/tint/builtins/gen/literal/pow/4f33b2.wgsl.expected.spvasm

@@ -1,14 +1,13 @@
 ; SPIR-V
 ; Version: 1.3
 ; Generator: Google Tint Compiler; 0
-; Bound: 36
+; Bound: 34
 ; Schema: 0
                OpCapability Shader
                OpCapability Float16
                OpCapability UniformAndStorageBuffer16BitAccess
                OpCapability StorageBuffer16BitAccess
                OpCapability StorageInputOutput16
-         %16 = OpExtInstImport "GLSL.std.450"
                OpMemoryModel Logical GLSL450
                OpEntryPoint Vertex %vertex_main "vertex_main" %value %vertex_point_size
                OpEntryPoint Fragment %fragment_main "fragment_main"
@@ -38,37 +37,36 @@
        %half = OpTypeFloat 16
      %v4half = OpTypeVector %half 4
 %half_0x1p_0 = OpConstant %half 0x1p+0
-         %18 = OpConstantComposite %v4half %half_0x1p_0 %half_0x1p_0 %half_0x1p_0 %half_0x1p_0
+         %16 = OpConstantComposite %v4half %half_0x1p_0 %half_0x1p_0 %half_0x1p_0 %half_0x1p_0
 %_ptr_Function_v4half = OpTypePointer Function %v4half
-         %21 = OpConstantNull %v4half
+         %19 = OpConstantNull %v4half
-         %22 = OpTypeFunction %v4float
+         %20 = OpTypeFunction %v4float
     %float_1 = OpConstant %float 1
  %pow_4f33b2 = OpFunction %void None %9
          %12 = OpLabel
-        %res = OpVariable %_ptr_Function_v4half Function %21
+        %res = OpVariable %_ptr_Function_v4half Function %19
-         %13 = OpExtInst %v4half %16 Pow %18 %18
+               OpStore %res %16
-               OpStore %res %13
                OpReturn
                OpFunctionEnd
-%vertex_main_inner = OpFunction %v4float None %22
+%vertex_main_inner = OpFunction %v4float None %20
-         %24 = OpLabel
+         %22 = OpLabel
-         %25 = OpFunctionCall %void %pow_4f33b2
+         %23 = OpFunctionCall %void %pow_4f33b2
                OpReturnValue %5
                OpFunctionEnd
 %vertex_main = OpFunction %void None %9
-         %27 = OpLabel
+         %25 = OpLabel
-         %28 = OpFunctionCall %v4float %vertex_main_inner
+         %26 = OpFunctionCall %v4float %vertex_main_inner
-               OpStore %value %28
+               OpStore %value %26
                OpStore %vertex_point_size %float_1
                OpReturn
                OpFunctionEnd
 %fragment_main = OpFunction %void None %9
-         %31 = OpLabel
+         %29 = OpLabel
-         %32 = OpFunctionCall %void %pow_4f33b2
+         %30 = OpFunctionCall %void %pow_4f33b2
                OpReturn
                OpFunctionEnd
 %compute_main = OpFunction %void None %9
-         %34 = OpLabel
+         %32 = OpLabel
-         %35 = OpFunctionCall %void %pow_4f33b2
+         %33 = OpFunctionCall %void %pow_4f33b2
                OpReturn
                OpFunctionEnd

test/tint/builtins/gen/literal/pow/749c42.wgsl

@@ -0,0 +1,43 @@
+// Copyright 2022 The Tint Authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+////////////////////////////////////////////////////////////////////////////////
+// File generated by tools/src/cmd/gen
+// using the template:
+//   test/tint/builtins/gen/gen.wgsl.tmpl
+//
+// Do not modify this file directly
+////////////////////////////////////////////////////////////////////////////////
+
+
+// fn pow(fa, fa) -> fa
+fn pow_749c42() {
+  var res = pow(1., 1.);
+}
+
+@vertex
+fn vertex_main() -> @builtin(position) vec4<f32> {
+  pow_749c42();
+  return vec4<f32>();
+}
+
+@fragment
+fn fragment_main() {
+  pow_749c42();
+}
+
+@compute @workgroup_size(1)
+fn compute_main() {
+  pow_749c42();
+}

test/tint/builtins/gen/literal/pow/749c42.wgsl.expected.dxc.hlsl

@@ -0,0 +1,30 @@
+void pow_749c42() {
+  float res = 1.0f;
+}
+
+struct tint_symbol {
+  float4 value : SV_Position;
+};
+
+float4 vertex_main_inner() {
+  pow_749c42();
+  return (0.0f).xxxx;
+}
+
+tint_symbol vertex_main() {
+  const float4 inner_result = vertex_main_inner();
+  tint_symbol wrapper_result = (tint_symbol)0;
+  wrapper_result.value = inner_result;
+  return wrapper_result;
+}
+
+void fragment_main() {
+  pow_749c42();
+  return;
+}
+
+[numthreads(1, 1, 1)]
+void compute_main() {
+  pow_749c42();
+  return;
+}

test/tint/builtins/gen/literal/pow/749c42.wgsl.expected.fxc.hlsl

@@ -0,0 +1,30 @@
+void pow_749c42() {
+  float res = 1.0f;
+}
+
+struct tint_symbol {
+  float4 value : SV_Position;
+};
+
+float4 vertex_main_inner() {
+  pow_749c42();
+  return (0.0f).xxxx;
+}
+
+tint_symbol vertex_main() {
+  const float4 inner_result = vertex_main_inner();
+  tint_symbol wrapper_result = (tint_symbol)0;
+  wrapper_result.value = inner_result;
+  return wrapper_result;
+}
+
+void fragment_main() {
+  pow_749c42();
+  return;
+}
+
+[numthreads(1, 1, 1)]
+void compute_main() {
+  pow_749c42();
+  return;
+}

test/tint/builtins/gen/literal/pow/749c42.wgsl.expected.glsl

@@ -0,0 +1,49 @@
+#version 310 es
+
+void pow_749c42() {
+  float res = 1.0f;
+}
+
+vec4 vertex_main() {
+  pow_749c42();
+  return vec4(0.0f);
+}
+
+void main() {
+  gl_PointSize = 1.0;
+  vec4 inner_result = vertex_main();
+  gl_Position = inner_result;
+  gl_Position.y = -(gl_Position.y);
+  gl_Position.z = ((2.0f * gl_Position.z) - gl_Position.w);
+  return;
+}
+#version 310 es
+precision mediump float;
+
+void pow_749c42() {
+  float res = 1.0f;
+}
+
+void fragment_main() {
+  pow_749c42();
+}
+
+void main() {
+  fragment_main();
+  return;
+}
+#version 310 es
+
+void pow_749c42() {
+  float res = 1.0f;
+}
+
+void compute_main() {
+  pow_749c42();
+}
+
+layout(local_size_x = 1, local_size_y = 1, local_size_z = 1) in;
+void main() {
+  compute_main();
+  return;
+}

test/tint/builtins/gen/literal/pow/749c42.wgsl.expected.msl

@@ -0,0 +1,33 @@
+#include <metal_stdlib>
+
+using namespace metal;
+void pow_749c42() {
+  float res = 1.0f;
+}
+
+struct tint_symbol {
+  float4 value [[position]];
+};
+
+float4 vertex_main_inner() {
+  pow_749c42();
+  return float4(0.0f);
+}
+
+vertex tint_symbol vertex_main() {
+  float4 const inner_result = vertex_main_inner();
+  tint_symbol wrapper_result = {};
+  wrapper_result.value = inner_result;
+  return wrapper_result;
+}
+
+fragment void fragment_main() {
+  pow_749c42();
+  return;
+}
+
+kernel void compute_main() {
+  pow_749c42();
+  return;
+}
+

test/tint/builtins/gen/literal/pow/749c42.wgsl.expected.spvasm

@@ -0,0 +1,63 @@
+; SPIR-V
+; Version: 1.3
+; Generator: Google Tint Compiler; 0
+; Bound: 29
+; Schema: 0
+               OpCapability Shader
+               OpMemoryModel Logical GLSL450
+               OpEntryPoint Vertex %vertex_main "vertex_main" %value %vertex_point_size
+               OpEntryPoint Fragment %fragment_main "fragment_main"
+               OpEntryPoint GLCompute %compute_main "compute_main"
+               OpExecutionMode %fragment_main OriginUpperLeft
+               OpExecutionMode %compute_main LocalSize 1 1 1
+               OpName %value "value"
+               OpName %vertex_point_size "vertex_point_size"
+               OpName %pow_749c42 "pow_749c42"
+               OpName %res "res"
+               OpName %vertex_main_inner "vertex_main_inner"
+               OpName %vertex_main "vertex_main"
+               OpName %fragment_main "fragment_main"
+               OpName %compute_main "compute_main"
+               OpDecorate %value BuiltIn Position
+               OpDecorate %vertex_point_size BuiltIn PointSize
+      %float = OpTypeFloat 32
+    %v4float = OpTypeVector %float 4
+%_ptr_Output_v4float = OpTypePointer Output %v4float
+          %5 = OpConstantNull %v4float
+      %value = OpVariable %_ptr_Output_v4float Output %5
+%_ptr_Output_float = OpTypePointer Output %float
+          %8 = OpConstantNull %float
+%vertex_point_size = OpVariable %_ptr_Output_float Output %8
+       %void = OpTypeVoid
+          %9 = OpTypeFunction %void
+    %float_1 = OpConstant %float 1
+%_ptr_Function_float = OpTypePointer Function %float
+         %16 = OpTypeFunction %v4float
+ %pow_749c42 = OpFunction %void None %9
+         %12 = OpLabel
+        %res = OpVariable %_ptr_Function_float Function %8
+               OpStore %res %float_1
+               OpReturn
+               OpFunctionEnd
+%vertex_main_inner = OpFunction %v4float None %16
+         %18 = OpLabel
+         %19 = OpFunctionCall %void %pow_749c42
+               OpReturnValue %5
+               OpFunctionEnd
+%vertex_main = OpFunction %void None %9
+         %21 = OpLabel
+         %22 = OpFunctionCall %v4float %vertex_main_inner
+               OpStore %value %22
+               OpStore %vertex_point_size %float_1
+               OpReturn
+               OpFunctionEnd
+%fragment_main = OpFunction %void None %9
+         %24 = OpLabel
+         %25 = OpFunctionCall %void %pow_749c42
+               OpReturn
+               OpFunctionEnd
+%compute_main = OpFunction %void None %9
+         %27 = OpLabel
+         %28 = OpFunctionCall %void %pow_749c42
+               OpReturn
+               OpFunctionEnd

test/tint/builtins/gen/literal/pow/749c42.wgsl.expected.wgsl

@@ -0,0 +1,19 @@
+fn pow_749c42() {
+  var res = pow(1.0, 1.0);
+}
+
+@vertex
+fn vertex_main() -> @builtin(position) vec4<f32> {
+  pow_749c42();
+  return vec4<f32>();
+}
+
+@fragment
+fn fragment_main() {
+  pow_749c42();
+}
+
+@compute @workgroup_size(1)
+fn compute_main() {
+  pow_749c42();
+}

test/tint/builtins/gen/literal/pow/a8f6b2.wgsl

@@ -0,0 +1,43 @@
+// Copyright 2022 The Tint Authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+////////////////////////////////////////////////////////////////////////////////
+// File generated by tools/src/cmd/gen
+// using the template:
+//   test/tint/builtins/gen/gen.wgsl.tmpl
+//
+// Do not modify this file directly
+////////////////////////////////////////////////////////////////////////////////
+
+
+// fn pow(vec<4, fa>, vec<4, fa>) -> vec<4, fa>
+fn pow_a8f6b2() {
+  var res = pow(vec4(1.), vec4(1.));
+}
+
+@vertex
+fn vertex_main() -> @builtin(position) vec4<f32> {
+  pow_a8f6b2();
+  return vec4<f32>();
+}
+
+@fragment
+fn fragment_main() {
+  pow_a8f6b2();
+}
+
+@compute @workgroup_size(1)
+fn compute_main() {
+  pow_a8f6b2();
+}

test/tint/builtins/gen/literal/pow/a8f6b2.wgsl.expected.dxc.hlsl

@@ -0,0 +1,30 @@
+void pow_a8f6b2() {
+  float4 res = (1.0f).xxxx;
+}
+
+struct tint_symbol {
+  float4 value : SV_Position;
+};
+
+float4 vertex_main_inner() {
+  pow_a8f6b2();
+  return (0.0f).xxxx;
+}
+
+tint_symbol vertex_main() {
+  const float4 inner_result = vertex_main_inner();
+  tint_symbol wrapper_result = (tint_symbol)0;
+  wrapper_result.value = inner_result;
+  return wrapper_result;
+}
+
+void fragment_main() {
+  pow_a8f6b2();
+  return;
+}
+
+[numthreads(1, 1, 1)]
+void compute_main() {
+  pow_a8f6b2();
+  return;
+}

test/tint/builtins/gen/literal/pow/a8f6b2.wgsl.expected.fxc.hlsl

@@ -0,0 +1,30 @@
+void pow_a8f6b2() {
+  float4 res = (1.0f).xxxx;
+}
+
+struct tint_symbol {
+  float4 value : SV_Position;
+};
+
+float4 vertex_main_inner() {
+  pow_a8f6b2();
+  return (0.0f).xxxx;
+}
+
+tint_symbol vertex_main() {
+  const float4 inner_result = vertex_main_inner();
+  tint_symbol wrapper_result = (tint_symbol)0;
+  wrapper_result.value = inner_result;
+  return wrapper_result;
+}
+
+void fragment_main() {
+  pow_a8f6b2();
+  return;
+}
+
+[numthreads(1, 1, 1)]
+void compute_main() {
+  pow_a8f6b2();
+  return;
+}

test/tint/builtins/gen/literal/pow/a8f6b2.wgsl.expected.glsl

@@ -0,0 +1,49 @@
+#version 310 es
+
+void pow_a8f6b2() {
+  vec4 res = vec4(1.0f);
+}
+
+vec4 vertex_main() {
+  pow_a8f6b2();
+  return vec4(0.0f);
+}
+
+void main() {
+  gl_PointSize = 1.0;
+  vec4 inner_result = vertex_main();
+  gl_Position = inner_result;
+  gl_Position.y = -(gl_Position.y);
+  gl_Position.z = ((2.0f * gl_Position.z) - gl_Position.w);
+  return;
+}
+#version 310 es
+precision mediump float;
+
+void pow_a8f6b2() {
+  vec4 res = vec4(1.0f);
+}
+
+void fragment_main() {
+  pow_a8f6b2();
+}
+
+void main() {
+  fragment_main();
+  return;
+}
+#version 310 es
+
+void pow_a8f6b2() {
+  vec4 res = vec4(1.0f);
+}
+
+void compute_main() {
+  pow_a8f6b2();
+}
+
+layout(local_size_x = 1, local_size_y = 1, local_size_z = 1) in;
+void main() {
+  compute_main();
+  return;
+}

test/tint/builtins/gen/literal/pow/a8f6b2.wgsl.expected.msl

@@ -0,0 +1,33 @@
+#include <metal_stdlib>
+
+using namespace metal;
+void pow_a8f6b2() {
+  float4 res = float4(1.0f);
+}
+
+struct tint_symbol {
+  float4 value [[position]];
+};
+
+float4 vertex_main_inner() {
+  pow_a8f6b2();
+  return float4(0.0f);
+}
+
+vertex tint_symbol vertex_main() {
+  float4 const inner_result = vertex_main_inner();
+  tint_symbol wrapper_result = {};
+  wrapper_result.value = inner_result;
+  return wrapper_result;
+}
+
+fragment void fragment_main() {
+  pow_a8f6b2();
+  return;
+}
+
+kernel void compute_main() {
+  pow_a8f6b2();
+  return;
+}
+

test/tint/builtins/gen/literal/pow/a8f6b2.wgsl.expected.spvasm

@@ -0,0 +1,64 @@
+; SPIR-V
+; Version: 1.3
+; Generator: Google Tint Compiler; 0
+; Bound: 30
+; Schema: 0
+               OpCapability Shader
+               OpMemoryModel Logical GLSL450
+               OpEntryPoint Vertex %vertex_main "vertex_main" %value %vertex_point_size
+               OpEntryPoint Fragment %fragment_main "fragment_main"
+               OpEntryPoint GLCompute %compute_main "compute_main"
+               OpExecutionMode %fragment_main OriginUpperLeft
+               OpExecutionMode %compute_main LocalSize 1 1 1
+               OpName %value "value"
+               OpName %vertex_point_size "vertex_point_size"
+               OpName %pow_a8f6b2 "pow_a8f6b2"
+               OpName %res "res"
+               OpName %vertex_main_inner "vertex_main_inner"
+               OpName %vertex_main "vertex_main"
+               OpName %fragment_main "fragment_main"
+               OpName %compute_main "compute_main"
+               OpDecorate %value BuiltIn Position
+               OpDecorate %vertex_point_size BuiltIn PointSize
+      %float = OpTypeFloat 32
+    %v4float = OpTypeVector %float 4
+%_ptr_Output_v4float = OpTypePointer Output %v4float
+          %5 = OpConstantNull %v4float
+      %value = OpVariable %_ptr_Output_v4float Output %5
+%_ptr_Output_float = OpTypePointer Output %float
+          %8 = OpConstantNull %float
+%vertex_point_size = OpVariable %_ptr_Output_float Output %8
+       %void = OpTypeVoid
+          %9 = OpTypeFunction %void
+    %float_1 = OpConstant %float 1
+         %14 = OpConstantComposite %v4float %float_1 %float_1 %float_1 %float_1
+%_ptr_Function_v4float = OpTypePointer Function %v4float
+         %17 = OpTypeFunction %v4float
+ %pow_a8f6b2 = OpFunction %void None %9
+         %12 = OpLabel
+        %res = OpVariable %_ptr_Function_v4float Function %5
+               OpStore %res %14
+               OpReturn
+               OpFunctionEnd
+%vertex_main_inner = OpFunction %v4float None %17
+         %19 = OpLabel
+         %20 = OpFunctionCall %void %pow_a8f6b2
+               OpReturnValue %5
+               OpFunctionEnd
+%vertex_main = OpFunction %void None %9
+         %22 = OpLabel
+         %23 = OpFunctionCall %v4float %vertex_main_inner
+               OpStore %value %23
+               OpStore %vertex_point_size %float_1
+               OpReturn
+               OpFunctionEnd
+%fragment_main = OpFunction %void None %9
+         %25 = OpLabel
+         %26 = OpFunctionCall %void %pow_a8f6b2
+               OpReturn
+               OpFunctionEnd
+%compute_main = OpFunction %void None %9
+         %28 = OpLabel
+         %29 = OpFunctionCall %void %pow_a8f6b2
+               OpReturn
+               OpFunctionEnd

test/tint/builtins/gen/literal/pow/a8f6b2.wgsl.expected.wgsl

@@ -0,0 +1,19 @@
+fn pow_a8f6b2() {
+  var res = pow(vec4(1.0), vec4(1.0));
+}
+
+@vertex
+fn vertex_main() -> @builtin(position) vec4<f32> {
+  pow_a8f6b2();
+  return vec4<f32>();
+}
+
+@fragment
+fn fragment_main() {
+  pow_a8f6b2();
+}
+
+@compute @workgroup_size(1)
+fn compute_main() {
+  pow_a8f6b2();
+}

test/tint/builtins/gen/literal/pow/bc91ed.wgsl

@@ -0,0 +1,43 @@
+// Copyright 2022 The Tint Authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+////////////////////////////////////////////////////////////////////////////////
+// File generated by tools/src/cmd/gen
+// using the template:
+//   test/tint/builtins/gen/gen.wgsl.tmpl
+//
+// Do not modify this file directly
+////////////////////////////////////////////////////////////////////////////////
+
+
+// fn pow(vec<2, fa>, vec<2, fa>) -> vec<2, fa>
+fn pow_bc91ed() {
+  var res = pow(vec2(1.), vec2(1.));
+}
+
+@vertex
+fn vertex_main() -> @builtin(position) vec4<f32> {
+  pow_bc91ed();
+  return vec4<f32>();
+}
+
+@fragment
+fn fragment_main() {
+  pow_bc91ed();
+}
+
+@compute @workgroup_size(1)
+fn compute_main() {
+  pow_bc91ed();
+}

test/tint/builtins/gen/literal/pow/bc91ed.wgsl.expected.dxc.hlsl

@@ -0,0 +1,30 @@
+void pow_bc91ed() {
+  float2 res = (1.0f).xx;
+}
+
+struct tint_symbol {
+  float4 value : SV_Position;
+};
+
+float4 vertex_main_inner() {
+  pow_bc91ed();
+  return (0.0f).xxxx;
+}
+
+tint_symbol vertex_main() {
+  const float4 inner_result = vertex_main_inner();
+  tint_symbol wrapper_result = (tint_symbol)0;
+  wrapper_result.value = inner_result;
+  return wrapper_result;
+}
+
+void fragment_main() {
+  pow_bc91ed();
+  return;
+}
+
+[numthreads(1, 1, 1)]
+void compute_main() {
+  pow_bc91ed();
+  return;
+}

test/tint/builtins/gen/literal/pow/bc91ed.wgsl.expected.fxc.hlsl

@@ -0,0 +1,30 @@
+void pow_bc91ed() {
+  float2 res = (1.0f).xx;
+}
+
+struct tint_symbol {
+  float4 value : SV_Position;
+};
+
+float4 vertex_main_inner() {
+  pow_bc91ed();
+  return (0.0f).xxxx;
+}
+
+tint_symbol vertex_main() {
+  const float4 inner_result = vertex_main_inner();
+  tint_symbol wrapper_result = (tint_symbol)0;
+  wrapper_result.value = inner_result;
+  return wrapper_result;
+}
+
+void fragment_main() {
+  pow_bc91ed();
+  return;
+}
+
+[numthreads(1, 1, 1)]
+void compute_main() {
+  pow_bc91ed();
+  return;
+}

test/tint/builtins/gen/literal/pow/bc91ed.wgsl.expected.glsl

@@ -0,0 +1,49 @@
+#version 310 es
+
+void pow_bc91ed() {
+  vec2 res = vec2(1.0f);
+}
+
+vec4 vertex_main() {
+  pow_bc91ed();
+  return vec4(0.0f);
+}
+
+void main() {
+  gl_PointSize = 1.0;
+  vec4 inner_result = vertex_main();
+  gl_Position = inner_result;
+  gl_Position.y = -(gl_Position.y);
+  gl_Position.z = ((2.0f * gl_Position.z) - gl_Position.w);
+  return;
+}
+#version 310 es
+precision mediump float;
+
+void pow_bc91ed() {
+  vec2 res = vec2(1.0f);
+}
+
+void fragment_main() {
+  pow_bc91ed();
+}
+
+void main() {
+  fragment_main();
+  return;
+}
+#version 310 es
+
+void pow_bc91ed() {
+  vec2 res = vec2(1.0f);
+}
+
+void compute_main() {
+  pow_bc91ed();
+}
+
+layout(local_size_x = 1, local_size_y = 1, local_size_z = 1) in;
+void main() {
+  compute_main();
+  return;
+}

test/tint/builtins/gen/literal/pow/bc91ed.wgsl.expected.msl

@@ -0,0 +1,33 @@
+#include <metal_stdlib>
+
+using namespace metal;
+void pow_bc91ed() {
+  float2 res = float2(1.0f);
+}
+
+struct tint_symbol {
+  float4 value [[position]];
+};
+
+float4 vertex_main_inner() {
+  pow_bc91ed();
+  return float4(0.0f);
+}
+
+vertex tint_symbol vertex_main() {
+  float4 const inner_result = vertex_main_inner();
+  tint_symbol wrapper_result = {};
+  wrapper_result.value = inner_result;
+  return wrapper_result;
+}
+
+fragment void fragment_main() {
+  pow_bc91ed();
+  return;
+}
+
+kernel void compute_main() {
+  pow_bc91ed();
+  return;
+}
+

test/tint/builtins/gen/literal/pow/bc91ed.wgsl.expected.spvasm

@@ -0,0 +1,66 @@
+; SPIR-V
+; Version: 1.3
+; Generator: Google Tint Compiler; 0
+; Bound: 32
+; Schema: 0
+               OpCapability Shader
+               OpMemoryModel Logical GLSL450
+               OpEntryPoint Vertex %vertex_main "vertex_main" %value %vertex_point_size
+               OpEntryPoint Fragment %fragment_main "fragment_main"
+               OpEntryPoint GLCompute %compute_main "compute_main"
+               OpExecutionMode %fragment_main OriginUpperLeft
+               OpExecutionMode %compute_main LocalSize 1 1 1
+               OpName %value "value"
+               OpName %vertex_point_size "vertex_point_size"
+               OpName %pow_bc91ed "pow_bc91ed"
+               OpName %res "res"
+               OpName %vertex_main_inner "vertex_main_inner"
+               OpName %vertex_main "vertex_main"
+               OpName %fragment_main "fragment_main"
+               OpName %compute_main "compute_main"
+               OpDecorate %value BuiltIn Position
+               OpDecorate %vertex_point_size BuiltIn PointSize
+      %float = OpTypeFloat 32
+    %v4float = OpTypeVector %float 4
+%_ptr_Output_v4float = OpTypePointer Output %v4float
+          %5 = OpConstantNull %v4float
+      %value = OpVariable %_ptr_Output_v4float Output %5
+%_ptr_Output_float = OpTypePointer Output %float
+          %8 = OpConstantNull %float
+%vertex_point_size = OpVariable %_ptr_Output_float Output %8
+       %void = OpTypeVoid
+          %9 = OpTypeFunction %void
+    %v2float = OpTypeVector %float 2
+    %float_1 = OpConstant %float 1
+         %15 = OpConstantComposite %v2float %float_1 %float_1
+%_ptr_Function_v2float = OpTypePointer Function %v2float
+         %18 = OpConstantNull %v2float
+         %19 = OpTypeFunction %v4float
+ %pow_bc91ed = OpFunction %void None %9
+         %12 = OpLabel
+        %res = OpVariable %_ptr_Function_v2float Function %18
+               OpStore %res %15
+               OpReturn
+               OpFunctionEnd
+%vertex_main_inner = OpFunction %v4float None %19
+         %21 = OpLabel
+         %22 = OpFunctionCall %void %pow_bc91ed
+               OpReturnValue %5
+               OpFunctionEnd
+%vertex_main = OpFunction %void None %9
+         %24 = OpLabel
+         %25 = OpFunctionCall %v4float %vertex_main_inner
+               OpStore %value %25
+               OpStore %vertex_point_size %float_1
+               OpReturn
+               OpFunctionEnd
+%fragment_main = OpFunction %void None %9
+         %27 = OpLabel
+         %28 = OpFunctionCall %void %pow_bc91ed
+               OpReturn
+               OpFunctionEnd
+%compute_main = OpFunction %void None %9
+         %30 = OpLabel
+         %31 = OpFunctionCall %void %pow_bc91ed
+               OpReturn
+               OpFunctionEnd

test/tint/builtins/gen/literal/pow/bc91ed.wgsl.expected.wgsl

@@ -0,0 +1,19 @@
+fn pow_bc91ed() {
+  var res = pow(vec2(1.0), vec2(1.0));
+}
+
+@vertex
+fn vertex_main() -> @builtin(position) vec4<f32> {
+  pow_bc91ed();
+  return vec4<f32>();
+}
+
+@fragment
+fn fragment_main() {
+  pow_bc91ed();
+}
+
+@compute @workgroup_size(1)
+fn compute_main() {
+  pow_bc91ed();
+}

test/tint/builtins/gen/literal/pow/ce9ef5.wgsl.expected.dxc.hlsl

@@ -1,5 +1,5 @@
 void pow_ce9ef5() {
-  float16_t res = pow(float16_t(1.0h), float16_t(1.0h));
+  float16_t res = float16_t(1.0h);
 }
 
 struct tint_symbol {

test/tint/builtins/gen/literal/pow/ce9ef5.wgsl.expected.glsl

@@ -2,7 +2,7 @@
 #extension GL_AMD_gpu_shader_half_float : require
 
 void pow_ce9ef5() {
-  float16_t res = pow(1.0hf, 1.0hf);
+  float16_t res = 1.0hf;
 }
 
 vec4 vertex_main() {
@@ -23,7 +23,7 @@ void main() {
 precision mediump float;
 
 void pow_ce9ef5() {
-  float16_t res = pow(1.0hf, 1.0hf);
+  float16_t res = 1.0hf;
 }
 
 void fragment_main() {
@@ -38,7 +38,7 @@ void main() {
 #extension GL_AMD_gpu_shader_half_float : require
 
 void pow_ce9ef5() {
-  float16_t res = pow(1.0hf, 1.0hf);
+  float16_t res = 1.0hf;
 }
 
 void compute_main() {

test/tint/builtins/gen/literal/pow/ce9ef5.wgsl.expected.msl

@@ -2,7 +2,7 @@
 
 using namespace metal;
 void pow_ce9ef5() {
-  half res = pow(1.0h, 1.0h);
+  half res = 1.0h;
 }
 
 struct tint_symbol {

test/tint/builtins/gen/literal/pow/ce9ef5.wgsl.expected.spvasm

@@ -1,14 +1,13 @@
 ; SPIR-V
 ; Version: 1.3
 ; Generator: Google Tint Compiler; 0
-; Bound: 34
+; Bound: 32
 ; Schema: 0
                OpCapability Shader
                OpCapability Float16
                OpCapability UniformAndStorageBuffer16BitAccess
                OpCapability StorageBuffer16BitAccess
                OpCapability StorageInputOutput16
-         %15 = OpExtInstImport "GLSL.std.450"
                OpMemoryModel Logical GLSL450
                OpEntryPoint Vertex %vertex_main "vertex_main" %value %vertex_point_size
                OpEntryPoint Fragment %fragment_main "fragment_main"
@@ -38,35 +37,34 @@
        %half = OpTypeFloat 16
 %half_0x1p_0 = OpConstant %half 0x1p+0
 %_ptr_Function_half = OpTypePointer Function %half
-         %19 = OpConstantNull %half
+         %17 = OpConstantNull %half
-         %20 = OpTypeFunction %v4float
+         %18 = OpTypeFunction %v4float
     %float_1 = OpConstant %float 1
  %pow_ce9ef5 = OpFunction %void None %9
          %12 = OpLabel
-        %res = OpVariable %_ptr_Function_half Function %19
+        %res = OpVariable %_ptr_Function_half Function %17
-         %13 = OpExtInst %half %15 Pow %half_0x1p_0 %half_0x1p_0
+               OpStore %res %half_0x1p_0
-               OpStore %res %13
                OpReturn
                OpFunctionEnd
-%vertex_main_inner = OpFunction %v4float None %20
+%vertex_main_inner = OpFunction %v4float None %18
-         %22 = OpLabel
+         %20 = OpLabel
-         %23 = OpFunctionCall %void %pow_ce9ef5
+         %21 = OpFunctionCall %void %pow_ce9ef5
                OpReturnValue %5
                OpFunctionEnd
 %vertex_main = OpFunction %void None %9
-         %25 = OpLabel
+         %23 = OpLabel
-         %26 = OpFunctionCall %v4float %vertex_main_inner
+         %24 = OpFunctionCall %v4float %vertex_main_inner
-               OpStore %value %26
+               OpStore %value %24
                OpStore %vertex_point_size %float_1
                OpReturn
                OpFunctionEnd
 %fragment_main = OpFunction %void None %9
-         %29 = OpLabel
+         %27 = OpLabel
-         %30 = OpFunctionCall %void %pow_ce9ef5
+         %28 = OpFunctionCall %void %pow_ce9ef5
                OpReturn
                OpFunctionEnd
 %compute_main = OpFunction %void None %9
-         %32 = OpLabel
+         %30 = OpLabel
-         %33 = OpFunctionCall %void %pow_ce9ef5
+         %31 = OpFunctionCall %void %pow_ce9ef5
                OpReturn
                OpFunctionEnd

test/tint/builtins/gen/literal/pow/e42f20.wgsl

@@ -0,0 +1,43 @@
+// Copyright 2022 The Tint Authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+////////////////////////////////////////////////////////////////////////////////
+// File generated by tools/src/cmd/gen
+// using the template:
+//   test/tint/builtins/gen/gen.wgsl.tmpl
+//
+// Do not modify this file directly
+////////////////////////////////////////////////////////////////////////////////
+
+
+// fn pow(vec<3, fa>, vec<3, fa>) -> vec<3, fa>
+fn pow_e42f20() {
+  var res = pow(vec3(1.), vec3(1.));
+}
+
+@vertex
+fn vertex_main() -> @builtin(position) vec4<f32> {
+  pow_e42f20();
+  return vec4<f32>();
+}
+
+@fragment
+fn fragment_main() {
+  pow_e42f20();
+}
+
+@compute @workgroup_size(1)
+fn compute_main() {
+  pow_e42f20();
+}

test/tint/builtins/gen/literal/pow/e42f20.wgsl.expected.dxc.hlsl

@@ -0,0 +1,30 @@
+void pow_e42f20() {
+  float3 res = (1.0f).xxx;
+}
+
+struct tint_symbol {
+  float4 value : SV_Position;
+};
+
+float4 vertex_main_inner() {
+  pow_e42f20();
+  return (0.0f).xxxx;
+}
+
+tint_symbol vertex_main() {
+  const float4 inner_result = vertex_main_inner();
+  tint_symbol wrapper_result = (tint_symbol)0;
+  wrapper_result.value = inner_result;
+  return wrapper_result;
+}
+
+void fragment_main() {
+  pow_e42f20();
+  return;
+}
+
+[numthreads(1, 1, 1)]
+void compute_main() {
+  pow_e42f20();
+  return;
+}

test/tint/builtins/gen/literal/pow/e42f20.wgsl.expected.fxc.hlsl

@@ -0,0 +1,30 @@
+void pow_e42f20() {
+  float3 res = (1.0f).xxx;
+}
+
+struct tint_symbol {
+  float4 value : SV_Position;
+};
+
+float4 vertex_main_inner() {
+  pow_e42f20();
+  return (0.0f).xxxx;
+}
+
+tint_symbol vertex_main() {
+  const float4 inner_result = vertex_main_inner();
+  tint_symbol wrapper_result = (tint_symbol)0;
+  wrapper_result.value = inner_result;
+  return wrapper_result;
+}
+
+void fragment_main() {
+  pow_e42f20();
+  return;
+}
+
+[numthreads(1, 1, 1)]
+void compute_main() {
+  pow_e42f20();
+  return;
+}

test/tint/builtins/gen/literal/pow/e42f20.wgsl.expected.glsl

@@ -0,0 +1,49 @@
+#version 310 es
+
+void pow_e42f20() {
+  vec3 res = vec3(1.0f);
+}
+
+vec4 vertex_main() {
+  pow_e42f20();
+  return vec4(0.0f);
+}
+
+void main() {
+  gl_PointSize = 1.0;
+  vec4 inner_result = vertex_main();
+  gl_Position = inner_result;
+  gl_Position.y = -(gl_Position.y);
+  gl_Position.z = ((2.0f * gl_Position.z) - gl_Position.w);
+  return;
+}
+#version 310 es
+precision mediump float;
+
+void pow_e42f20() {
+  vec3 res = vec3(1.0f);
+}
+
+void fragment_main() {
+  pow_e42f20();
+}
+
+void main() {
+  fragment_main();
+  return;
+}
+#version 310 es
+
+void pow_e42f20() {
+  vec3 res = vec3(1.0f);
+}
+
+void compute_main() {
+  pow_e42f20();
+}
+
+layout(local_size_x = 1, local_size_y = 1, local_size_z = 1) in;
+void main() {
+  compute_main();
+  return;
+}

test/tint/builtins/gen/literal/pow/e42f20.wgsl.expected.msl

@@ -0,0 +1,33 @@
+#include <metal_stdlib>
+
+using namespace metal;
+void pow_e42f20() {
+  float3 res = float3(1.0f);
+}
+
+struct tint_symbol {
+  float4 value [[position]];
+};
+
+float4 vertex_main_inner() {
+  pow_e42f20();
+  return float4(0.0f);
+}
+
+vertex tint_symbol vertex_main() {
+  float4 const inner_result = vertex_main_inner();
+  tint_symbol wrapper_result = {};
+  wrapper_result.value = inner_result;
+  return wrapper_result;
+}
+
+fragment void fragment_main() {
+  pow_e42f20();
+  return;
+}
+
+kernel void compute_main() {
+  pow_e42f20();
+  return;
+}
+

test/tint/builtins/gen/literal/pow/e42f20.wgsl.expected.spvasm

@@ -0,0 +1,66 @@
+; SPIR-V
+; Version: 1.3
+; Generator: Google Tint Compiler; 0
+; Bound: 32
+; Schema: 0
+               OpCapability Shader
+               OpMemoryModel Logical GLSL450
+               OpEntryPoint Vertex %vertex_main "vertex_main" %value %vertex_point_size
+               OpEntryPoint Fragment %fragment_main "fragment_main"
+               OpEntryPoint GLCompute %compute_main "compute_main"
+               OpExecutionMode %fragment_main OriginUpperLeft
+               OpExecutionMode %compute_main LocalSize 1 1 1
+               OpName %value "value"
+               OpName %vertex_point_size "vertex_point_size"
+               OpName %pow_e42f20 "pow_e42f20"
+               OpName %res "res"
+               OpName %vertex_main_inner "vertex_main_inner"
+               OpName %vertex_main "vertex_main"
+               OpName %fragment_main "fragment_main"
+               OpName %compute_main "compute_main"
+               OpDecorate %value BuiltIn Position
+               OpDecorate %vertex_point_size BuiltIn PointSize
+      %float = OpTypeFloat 32
+    %v4float = OpTypeVector %float 4
+%_ptr_Output_v4float = OpTypePointer Output %v4float
+          %5 = OpConstantNull %v4float
+      %value = OpVariable %_ptr_Output_v4float Output %5
+%_ptr_Output_float = OpTypePointer Output %float
+          %8 = OpConstantNull %float
+%vertex_point_size = OpVariable %_ptr_Output_float Output %8
+       %void = OpTypeVoid
+          %9 = OpTypeFunction %void
+    %v3float = OpTypeVector %float 3
+    %float_1 = OpConstant %float 1
+         %15 = OpConstantComposite %v3float %float_1 %float_1 %float_1
+%_ptr_Function_v3float = OpTypePointer Function %v3float
+         %18 = OpConstantNull %v3float
+         %19 = OpTypeFunction %v4float
+ %pow_e42f20 = OpFunction %void None %9
+         %12 = OpLabel
+        %res = OpVariable %_ptr_Function_v3float Function %18
+               OpStore %res %15
+               OpReturn
+               OpFunctionEnd
+%vertex_main_inner = OpFunction %v4float None %19
+         %21 = OpLabel
+         %22 = OpFunctionCall %void %pow_e42f20
+               OpReturnValue %5
+               OpFunctionEnd
+%vertex_main = OpFunction %void None %9
+         %24 = OpLabel
+         %25 = OpFunctionCall %v4float %vertex_main_inner
+               OpStore %value %25
+               OpStore %vertex_point_size %float_1
+               OpReturn
+               OpFunctionEnd
+%fragment_main = OpFunction %void None %9
+         %27 = OpLabel
+         %28 = OpFunctionCall %void %pow_e42f20
+               OpReturn
+               OpFunctionEnd
+%compute_main = OpFunction %void None %9
+         %30 = OpLabel
+         %31 = OpFunctionCall %void %pow_e42f20
+               OpReturn
+               OpFunctionEnd

test/tint/builtins/gen/literal/pow/e42f20.wgsl.expected.wgsl

@@ -0,0 +1,19 @@
+fn pow_e42f20() {
+  var res = pow(vec3(1.0), vec3(1.0));
+}
+
+@vertex
+fn vertex_main() -> @builtin(position) vec4<f32> {
+  pow_e42f20();
+  return vec4<f32>();
+}
+
+@fragment
+fn fragment_main() {
+  pow_e42f20();
+}
+
+@compute @workgroup_size(1)
+fn compute_main() {
+  pow_e42f20();
+}

test/tint/builtins/gen/literal/pow/e60ea5.wgsl.expected.dxc.hlsl

@@ -1,5 +1,5 @@
 void pow_e60ea5() {
-  float2 res = pow((1.0f).xx, (1.0f).xx);
+  float2 res = (1.0f).xx;
 }
 
 struct tint_symbol {

test/tint/builtins/gen/literal/pow/e60ea5.wgsl.expected.fxc.hlsl

@@ -1,5 +1,5 @@
 void pow_e60ea5() {
-  float2 res = pow((1.0f).xx, (1.0f).xx);
+  float2 res = (1.0f).xx;
 }
 
 struct tint_symbol {

test/tint/builtins/gen/literal/pow/e60ea5.wgsl.expected.glsl

@@ -1,7 +1,7 @@
 #version 310 es
 
 void pow_e60ea5() {
-  vec2 res = pow(vec2(1.0f), vec2(1.0f));
+  vec2 res = vec2(1.0f);
 }
 
 vec4 vertex_main() {
@@ -21,7 +21,7 @@ void main() {
 precision mediump float;
 
 void pow_e60ea5() {
-  vec2 res = pow(vec2(1.0f), vec2(1.0f));
+  vec2 res = vec2(1.0f);
 }
 
 void fragment_main() {
@@ -35,7 +35,7 @@ void main() {
 #version 310 es
 
 void pow_e60ea5() {
-  vec2 res = pow(vec2(1.0f), vec2(1.0f));
+  vec2 res = vec2(1.0f);
 }
 
 void compute_main() {

test/tint/builtins/gen/literal/pow/e60ea5.wgsl.expected.msl

@@ -2,7 +2,7 @@
 
 using namespace metal;
 void pow_e60ea5() {
-  float2 res = pow(float2(1.0f), float2(1.0f));
+  float2 res = float2(1.0f);
 }
 
 struct tint_symbol {

test/tint/builtins/gen/literal/pow/e60ea5.wgsl.expected.spvasm

@@ -1,10 +1,9 @@
 ; SPIR-V
 ; Version: 1.3
 ; Generator: Google Tint Compiler; 0
-; Bound: 34
+; Bound: 32
 ; Schema: 0
                OpCapability Shader
-         %15 = OpExtInstImport "GLSL.std.450"
                OpMemoryModel Logical GLSL450
                OpEntryPoint Vertex %vertex_main "vertex_main" %value %vertex_point_size
                OpEntryPoint Fragment %fragment_main "fragment_main"
@@ -33,36 +32,35 @@
           %9 = OpTypeFunction %void
     %v2float = OpTypeVector %float 2
     %float_1 = OpConstant %float 1
-         %17 = OpConstantComposite %v2float %float_1 %float_1
+         %15 = OpConstantComposite %v2float %float_1 %float_1
 %_ptr_Function_v2float = OpTypePointer Function %v2float
-         %20 = OpConstantNull %v2float
+         %18 = OpConstantNull %v2float
-         %21 = OpTypeFunction %v4float
+         %19 = OpTypeFunction %v4float
  %pow_e60ea5 = OpFunction %void None %9
          %12 = OpLabel
-        %res = OpVariable %_ptr_Function_v2float Function %20
+        %res = OpVariable %_ptr_Function_v2float Function %18
-         %13 = OpExtInst %v2float %15 Pow %17 %17
+               OpStore %res %15
-               OpStore %res %13
                OpReturn
                OpFunctionEnd
-%vertex_main_inner = OpFunction %v4float None %21
+%vertex_main_inner = OpFunction %v4float None %19
-         %23 = OpLabel
+         %21 = OpLabel
-         %24 = OpFunctionCall %void %pow_e60ea5
+         %22 = OpFunctionCall %void %pow_e60ea5
                OpReturnValue %5
                OpFunctionEnd
 %vertex_main = OpFunction %void None %9
-         %26 = OpLabel
+         %24 = OpLabel
-         %27 = OpFunctionCall %v4float %vertex_main_inner
+         %25 = OpFunctionCall %v4float %vertex_main_inner
-               OpStore %value %27
+               OpStore %value %25
                OpStore %vertex_point_size %float_1
                OpReturn
                OpFunctionEnd
 %fragment_main = OpFunction %void None %9
-         %29 = OpLabel
+         %27 = OpLabel
-         %30 = OpFunctionCall %void %pow_e60ea5
+         %28 = OpFunctionCall %void %pow_e60ea5
                OpReturn
                OpFunctionEnd
 %compute_main = OpFunction %void None %9
-         %32 = OpLabel
+         %30 = OpLabel
-         %33 = OpFunctionCall %void %pow_e60ea5
+         %31 = OpFunctionCall %void %pow_e60ea5
                OpReturn
                OpFunctionEnd

test/tint/builtins/gen/literal/pow/f37b25.wgsl.expected.dxc.hlsl

@@ -1,5 +1,5 @@
 void pow_f37b25() {
-  vector<float16_t, 2> res = pow((float16_t(1.0h)).xx, (float16_t(1.0h)).xx);
+  vector<float16_t, 2> res = (float16_t(1.0h)).xx;
 }
 
 struct tint_symbol {

test/tint/builtins/gen/literal/pow/f37b25.wgsl.expected.glsl

@@ -2,7 +2,7 @@
 #extension GL_AMD_gpu_shader_half_float : require
 
 void pow_f37b25() {
-  f16vec2 res = pow(f16vec2(1.0hf), f16vec2(1.0hf));
+  f16vec2 res = f16vec2(1.0hf);
 }
 
 vec4 vertex_main() {
@@ -23,7 +23,7 @@ void main() {
 precision mediump float;
 
 void pow_f37b25() {
-  f16vec2 res = pow(f16vec2(1.0hf), f16vec2(1.0hf));
+  f16vec2 res = f16vec2(1.0hf);
 }
 
 void fragment_main() {
@@ -38,7 +38,7 @@ void main() {
 #extension GL_AMD_gpu_shader_half_float : require
 
 void pow_f37b25() {
-  f16vec2 res = pow(f16vec2(1.0hf), f16vec2(1.0hf));
+  f16vec2 res = f16vec2(1.0hf);
 }
 
 void compute_main() {

test/tint/builtins/gen/literal/pow/f37b25.wgsl.expected.msl

@@ -2,7 +2,7 @@
 
 using namespace metal;
 void pow_f37b25() {
-  half2 res = pow(half2(1.0h), half2(1.0h));
+  half2 res = half2(1.0h);
 }
 
 struct tint_symbol {

test/tint/builtins/gen/literal/pow/f37b25.wgsl.expected.spvasm

@@ -1,14 +1,13 @@
 ; SPIR-V
 ; Version: 1.3
 ; Generator: Google Tint Compiler; 0
-; Bound: 36
+; Bound: 34
 ; Schema: 0
                OpCapability Shader
                OpCapability Float16
                OpCapability UniformAndStorageBuffer16BitAccess
                OpCapability StorageBuffer16BitAccess
                OpCapability StorageInputOutput16
-         %16 = OpExtInstImport "GLSL.std.450"
                OpMemoryModel Logical GLSL450
                OpEntryPoint Vertex %vertex_main "vertex_main" %value %vertex_point_size
                OpEntryPoint Fragment %fragment_main "fragment_main"
@@ -38,37 +37,36 @@
        %half = OpTypeFloat 16
      %v2half = OpTypeVector %half 2
 %half_0x1p_0 = OpConstant %half 0x1p+0
-         %18 = OpConstantComposite %v2half %half_0x1p_0 %half_0x1p_0
+         %16 = OpConstantComposite %v2half %half_0x1p_0 %half_0x1p_0
 %_ptr_Function_v2half = OpTypePointer Function %v2half
-         %21 = OpConstantNull %v2half
+         %19 = OpConstantNull %v2half
-         %22 = OpTypeFunction %v4float
+         %20 = OpTypeFunction %v4float
     %float_1 = OpConstant %float 1
  %pow_f37b25 = OpFunction %void None %9
          %12 = OpLabel
-        %res = OpVariable %_ptr_Function_v2half Function %21
+        %res = OpVariable %_ptr_Function_v2half Function %19
-         %13 = OpExtInst %v2half %16 Pow %18 %18
+               OpStore %res %16
-               OpStore %res %13
                OpReturn
                OpFunctionEnd
-%vertex_main_inner = OpFunction %v4float None %22
+%vertex_main_inner = OpFunction %v4float None %20
-         %24 = OpLabel
+         %22 = OpLabel
-         %25 = OpFunctionCall %void %pow_f37b25
+         %23 = OpFunctionCall %void %pow_f37b25
                OpReturnValue %5
                OpFunctionEnd
 %vertex_main = OpFunction %void None %9
-         %27 = OpLabel
+         %25 = OpLabel
-         %28 = OpFunctionCall %v4float %vertex_main_inner
+         %26 = OpFunctionCall %v4float %vertex_main_inner
-               OpStore %value %28
+               OpStore %value %26
                OpStore %vertex_point_size %float_1
                OpReturn
                OpFunctionEnd
 %fragment_main = OpFunction %void None %9
-         %31 = OpLabel
+         %29 = OpLabel
-         %32 = OpFunctionCall %void %pow_f37b25
+         %30 = OpFunctionCall %void %pow_f37b25
                OpReturn
                OpFunctionEnd
 %compute_main = OpFunction %void None %9
-         %34 = OpLabel
+         %32 = OpLabel
-         %35 = OpFunctionCall %void %pow_f37b25
+         %33 = OpFunctionCall %void %pow_f37b25
                OpReturn
                OpFunctionEnd

test/tint/builtins/gen/literal/pow/fa5429.wgsl.expected.dxc.hlsl

@@ -1,5 +1,5 @@
 void pow_fa5429() {
-  vector<float16_t, 3> res = pow((float16_t(1.0h)).xxx, (float16_t(1.0h)).xxx);
+  vector<float16_t, 3> res = (float16_t(1.0h)).xxx;
 }
 
 struct tint_symbol {

test/tint/builtins/gen/literal/pow/fa5429.wgsl.expected.glsl

@@ -2,7 +2,7 @@
 #extension GL_AMD_gpu_shader_half_float : require
 
 void pow_fa5429() {
-  f16vec3 res = pow(f16vec3(1.0hf), f16vec3(1.0hf));
+  f16vec3 res = f16vec3(1.0hf);
 }
 
 vec4 vertex_main() {
@@ -23,7 +23,7 @@ void main() {
 precision mediump float;
 
 void pow_fa5429() {
-  f16vec3 res = pow(f16vec3(1.0hf), f16vec3(1.0hf));
+  f16vec3 res = f16vec3(1.0hf);
 }
 
 void fragment_main() {
@@ -38,7 +38,7 @@ void main() {
 #extension GL_AMD_gpu_shader_half_float : require
 
 void pow_fa5429() {
-  f16vec3 res = pow(f16vec3(1.0hf), f16vec3(1.0hf));
+  f16vec3 res = f16vec3(1.0hf);
 }
 
 void compute_main() {

test/tint/builtins/gen/literal/pow/fa5429.wgsl.expected.msl

@@ -2,7 +2,7 @@
 
 using namespace metal;
 void pow_fa5429() {
-  half3 res = pow(half3(1.0h), half3(1.0h));
+  half3 res = half3(1.0h);
 }
 
 struct tint_symbol {

test/tint/builtins/gen/literal/pow/fa5429.wgsl.expected.spvasm

@@ -1,14 +1,13 @@
 ; SPIR-V
 ; Version: 1.3
 ; Generator: Google Tint Compiler; 0
-; Bound: 36
+; Bound: 34
 ; Schema: 0
                OpCapability Shader
                OpCapability Float16
                OpCapability UniformAndStorageBuffer16BitAccess
                OpCapability StorageBuffer16BitAccess
                OpCapability StorageInputOutput16
-         %16 = OpExtInstImport "GLSL.std.450"
                OpMemoryModel Logical GLSL450
                OpEntryPoint Vertex %vertex_main "vertex_main" %value %vertex_point_size
                OpEntryPoint Fragment %fragment_main "fragment_main"
@@ -38,37 +37,36 @@
        %half = OpTypeFloat 16
      %v3half = OpTypeVector %half 3
 %half_0x1p_0 = OpConstant %half 0x1p+0
-         %18 = OpConstantComposite %v3half %half_0x1p_0 %half_0x1p_0 %half_0x1p_0
+         %16 = OpConstantComposite %v3half %half_0x1p_0 %half_0x1p_0 %half_0x1p_0
 %_ptr_Function_v3half = OpTypePointer Function %v3half
-         %21 = OpConstantNull %v3half
+         %19 = OpConstantNull %v3half
-         %22 = OpTypeFunction %v4float
+         %20 = OpTypeFunction %v4float
     %float_1 = OpConstant %float 1
  %pow_fa5429 = OpFunction %void None %9
          %12 = OpLabel
-        %res = OpVariable %_ptr_Function_v3half Function %21
+        %res = OpVariable %_ptr_Function_v3half Function %19
-         %13 = OpExtInst %v3half %16 Pow %18 %18
+               OpStore %res %16
-               OpStore %res %13
                OpReturn
                OpFunctionEnd
-%vertex_main_inner = OpFunction %v4float None %22
+%vertex_main_inner = OpFunction %v4float None %20
-         %24 = OpLabel
+         %22 = OpLabel
-         %25 = OpFunctionCall %void %pow_fa5429
+         %23 = OpFunctionCall %void %pow_fa5429
                OpReturnValue %5
                OpFunctionEnd
 %vertex_main = OpFunction %void None %9
-         %27 = OpLabel
+         %25 = OpLabel
-         %28 = OpFunctionCall %v4float %vertex_main_inner
+         %26 = OpFunctionCall %v4float %vertex_main_inner
-               OpStore %value %28
+               OpStore %value %26
                OpStore %vertex_point_size %float_1
                OpReturn
                OpFunctionEnd
 %fragment_main = OpFunction %void None %9
-         %31 = OpLabel
+         %29 = OpLabel
-         %32 = OpFunctionCall %void %pow_fa5429
+         %30 = OpFunctionCall %void %pow_fa5429
                OpReturn
                OpFunctionEnd
 %compute_main = OpFunction %void None %9
-         %34 = OpLabel
+         %32 = OpLabel
-         %35 = OpFunctionCall %void %pow_fa5429
+         %33 = OpFunctionCall %void %pow_fa5429
                OpReturn
                OpFunctionEnd

test/tint/builtins/gen/var/pow/749c42.wgsl

@@ -0,0 +1,45 @@
+// Copyright 2022 The Tint Authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+////////////////////////////////////////////////////////////////////////////////
+// File generated by tools/src/cmd/gen
+// using the template:
+//   test/tint/builtins/gen/gen.wgsl.tmpl
+//
+// Do not modify this file directly
+////////////////////////////////////////////////////////////////////////////////
+
+
+// fn pow(fa, fa) -> fa
+fn pow_749c42() {
+  const arg_0 = 1.;
+  const arg_1 = 1.;
+  var res = pow(arg_0, arg_1);
+}
+
+@vertex
+fn vertex_main() -> @builtin(position) vec4<f32> {
+  pow_749c42();
+  return vec4<f32>();
+}
+
+@fragment
+fn fragment_main() {
+  pow_749c42();
+}
+
+@compute @workgroup_size(1)
+fn compute_main() {
+  pow_749c42();
+}

test/tint/builtins/gen/var/pow/749c42.wgsl.expected.dxc.hlsl

@@ -0,0 +1,30 @@
+void pow_749c42() {
+  float res = 1.0f;
+}
+
+struct tint_symbol {
+  float4 value : SV_Position;
+};
+
+float4 vertex_main_inner() {
+  pow_749c42();
+  return (0.0f).xxxx;
+}
+
+tint_symbol vertex_main() {
+  const float4 inner_result = vertex_main_inner();
+  tint_symbol wrapper_result = (tint_symbol)0;
+  wrapper_result.value = inner_result;
+  return wrapper_result;
+}
+
+void fragment_main() {
+  pow_749c42();
+  return;
+}
+
+[numthreads(1, 1, 1)]
+void compute_main() {
+  pow_749c42();
+  return;
+}

test/tint/builtins/gen/var/pow/749c42.wgsl.expected.fxc.hlsl

@@ -0,0 +1,30 @@
+void pow_749c42() {
+  float res = 1.0f;
+}
+
+struct tint_symbol {
+  float4 value : SV_Position;
+};
+
+float4 vertex_main_inner() {
+  pow_749c42();
+  return (0.0f).xxxx;
+}
+
+tint_symbol vertex_main() {
+  const float4 inner_result = vertex_main_inner();
+  tint_symbol wrapper_result = (tint_symbol)0;
+  wrapper_result.value = inner_result;
+  return wrapper_result;
+}
+
+void fragment_main() {
+  pow_749c42();
+  return;
+}
+
+[numthreads(1, 1, 1)]
+void compute_main() {
+  pow_749c42();
+  return;
+}

test/tint/builtins/gen/var/pow/749c42.wgsl.expected.glsl

@@ -0,0 +1,49 @@
+#version 310 es
+
+void pow_749c42() {
+  float res = 1.0f;
+}
+
+vec4 vertex_main() {
+  pow_749c42();
+  return vec4(0.0f);
+}
+
+void main() {
+  gl_PointSize = 1.0;
+  vec4 inner_result = vertex_main();
+  gl_Position = inner_result;
+  gl_Position.y = -(gl_Position.y);
+  gl_Position.z = ((2.0f * gl_Position.z) - gl_Position.w);
+  return;
+}
+#version 310 es
+precision mediump float;
+
+void pow_749c42() {
+  float res = 1.0f;
+}
+
+void fragment_main() {
+  pow_749c42();
+}
+
+void main() {
+  fragment_main();
+  return;
+}
+#version 310 es
+
+void pow_749c42() {
+  float res = 1.0f;
+}
+
+void compute_main() {
+  pow_749c42();
+}
+
+layout(local_size_x = 1, local_size_y = 1, local_size_z = 1) in;
+void main() {
+  compute_main();
+  return;
+}

test/tint/builtins/gen/var/pow/749c42.wgsl.expected.msl

@@ -0,0 +1,33 @@
+#include <metal_stdlib>
+
+using namespace metal;
+void pow_749c42() {
+  float res = 1.0f;
+}
+
+struct tint_symbol {
+  float4 value [[position]];
+};
+
+float4 vertex_main_inner() {
+  pow_749c42();
+  return float4(0.0f);
+}
+
+vertex tint_symbol vertex_main() {
+  float4 const inner_result = vertex_main_inner();
+  tint_symbol wrapper_result = {};
+  wrapper_result.value = inner_result;
+  return wrapper_result;
+}
+
+fragment void fragment_main() {
+  pow_749c42();
+  return;
+}
+
+kernel void compute_main() {
+  pow_749c42();
+  return;
+}
+

test/tint/builtins/gen/var/pow/749c42.wgsl.expected.spvasm

@@ -0,0 +1,63 @@
+; SPIR-V
+; Version: 1.3
+; Generator: Google Tint Compiler; 0
+; Bound: 29
+; Schema: 0
+               OpCapability Shader
+               OpMemoryModel Logical GLSL450
+               OpEntryPoint Vertex %vertex_main "vertex_main" %value %vertex_point_size
+               OpEntryPoint Fragment %fragment_main "fragment_main"
+               OpEntryPoint GLCompute %compute_main "compute_main"
+               OpExecutionMode %fragment_main OriginUpperLeft
+               OpExecutionMode %compute_main LocalSize 1 1 1
+               OpName %value "value"
+               OpName %vertex_point_size "vertex_point_size"
+               OpName %pow_749c42 "pow_749c42"
+               OpName %res "res"
+               OpName %vertex_main_inner "vertex_main_inner"
+               OpName %vertex_main "vertex_main"
+               OpName %fragment_main "fragment_main"
+               OpName %compute_main "compute_main"
+               OpDecorate %value BuiltIn Position
+               OpDecorate %vertex_point_size BuiltIn PointSize
+      %float = OpTypeFloat 32
+    %v4float = OpTypeVector %float 4
+%_ptr_Output_v4float = OpTypePointer Output %v4float
+          %5 = OpConstantNull %v4float
+      %value = OpVariable %_ptr_Output_v4float Output %5
+%_ptr_Output_float = OpTypePointer Output %float
+          %8 = OpConstantNull %float
+%vertex_point_size = OpVariable %_ptr_Output_float Output %8
+       %void = OpTypeVoid
+          %9 = OpTypeFunction %void
+    %float_1 = OpConstant %float 1
+%_ptr_Function_float = OpTypePointer Function %float
+         %16 = OpTypeFunction %v4float
+ %pow_749c42 = OpFunction %void None %9
+         %12 = OpLabel
+        %res = OpVariable %_ptr_Function_float Function %8
+               OpStore %res %float_1
+               OpReturn
+               OpFunctionEnd
+%vertex_main_inner = OpFunction %v4float None %16
+         %18 = OpLabel
+         %19 = OpFunctionCall %void %pow_749c42
+               OpReturnValue %5
+               OpFunctionEnd
+%vertex_main = OpFunction %void None %9
+         %21 = OpLabel
+         %22 = OpFunctionCall %v4float %vertex_main_inner
+               OpStore %value %22
+               OpStore %vertex_point_size %float_1
+               OpReturn
+               OpFunctionEnd
+%fragment_main = OpFunction %void None %9
+         %24 = OpLabel
+         %25 = OpFunctionCall %void %pow_749c42
+               OpReturn
+               OpFunctionEnd
+%compute_main = OpFunction %void None %9
+         %27 = OpLabel
+         %28 = OpFunctionCall %void %pow_749c42
+               OpReturn
+               OpFunctionEnd

test/tint/builtins/gen/var/pow/749c42.wgsl.expected.wgsl

@@ -0,0 +1,21 @@
+fn pow_749c42() {
+  const arg_0 = 1.0;
+  const arg_1 = 1.0;
+  var res = pow(arg_0, arg_1);
+}
+
+@vertex
+fn vertex_main() -> @builtin(position) vec4<f32> {
+  pow_749c42();
+  return vec4<f32>();
+}
+
+@fragment
+fn fragment_main() {
+  pow_749c42();
+}
+
+@compute @workgroup_size(1)
+fn compute_main() {
+  pow_749c42();
+}

test/tint/builtins/gen/var/pow/a8f6b2.wgsl

@@ -0,0 +1,45 @@
+// Copyright 2022 The Tint Authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+////////////////////////////////////////////////////////////////////////////////
+// File generated by tools/src/cmd/gen
+// using the template:
+//   test/tint/builtins/gen/gen.wgsl.tmpl
+//
+// Do not modify this file directly
+////////////////////////////////////////////////////////////////////////////////
+
+
+// fn pow(vec<4, fa>, vec<4, fa>) -> vec<4, fa>
+fn pow_a8f6b2() {
+  const arg_0 = vec4(1.);
+  const arg_1 = vec4(1.);
+  var res = pow(arg_0, arg_1);
+}
+
+@vertex
+fn vertex_main() -> @builtin(position) vec4<f32> {
+  pow_a8f6b2();
+  return vec4<f32>();
+}
+
+@fragment
+fn fragment_main() {
+  pow_a8f6b2();
+}
+
+@compute @workgroup_size(1)
+fn compute_main() {
+  pow_a8f6b2();
+}

test/tint/builtins/gen/var/pow/a8f6b2.wgsl.expected.dxc.hlsl

@@ -0,0 +1,30 @@
+void pow_a8f6b2() {
+  float4 res = (1.0f).xxxx;
+}
+
+struct tint_symbol {
+  float4 value : SV_Position;
+};
+
+float4 vertex_main_inner() {
+  pow_a8f6b2();
+  return (0.0f).xxxx;
+}
+
+tint_symbol vertex_main() {
+  const float4 inner_result = vertex_main_inner();
+  tint_symbol wrapper_result = (tint_symbol)0;
+  wrapper_result.value = inner_result;
+  return wrapper_result;
+}
+
+void fragment_main() {
+  pow_a8f6b2();
+  return;
+}
+
+[numthreads(1, 1, 1)]
+void compute_main() {
+  pow_a8f6b2();
+  return;
+}

test/tint/builtins/gen/var/pow/a8f6b2.wgsl.expected.fxc.hlsl

@@ -0,0 +1,30 @@
+void pow_a8f6b2() {
+  float4 res = (1.0f).xxxx;
+}
+
+struct tint_symbol {
+  float4 value : SV_Position;
+};
+
+float4 vertex_main_inner() {
+  pow_a8f6b2();
+  return (0.0f).xxxx;
+}
+
+tint_symbol vertex_main() {
+  const float4 inner_result = vertex_main_inner();
+  tint_symbol wrapper_result = (tint_symbol)0;
+  wrapper_result.value = inner_result;
+  return wrapper_result;
+}
+
+void fragment_main() {
+  pow_a8f6b2();
+  return;
+}
+
+[numthreads(1, 1, 1)]
+void compute_main() {
+  pow_a8f6b2();
+  return;
+}

test/tint/builtins/gen/var/pow/a8f6b2.wgsl.expected.glsl

@@ -0,0 +1,49 @@
+#version 310 es
+
+void pow_a8f6b2() {
+  vec4 res = vec4(1.0f);
+}
+
+vec4 vertex_main() {
+  pow_a8f6b2();
+  return vec4(0.0f);
+}
+
+void main() {
+  gl_PointSize = 1.0;
+  vec4 inner_result = vertex_main();
+  gl_Position = inner_result;
+  gl_Position.y = -(gl_Position.y);
+  gl_Position.z = ((2.0f * gl_Position.z) - gl_Position.w);
+  return;
+}
+#version 310 es
+precision mediump float;
+
+void pow_a8f6b2() {
+  vec4 res = vec4(1.0f);
+}
+
+void fragment_main() {
+  pow_a8f6b2();
+}
+
+void main() {
+  fragment_main();
+  return;
+}
+#version 310 es
+
+void pow_a8f6b2() {
+  vec4 res = vec4(1.0f);
+}
+
+void compute_main() {
+  pow_a8f6b2();
+}
+
+layout(local_size_x = 1, local_size_y = 1, local_size_z = 1) in;
+void main() {
+  compute_main();
+  return;
+}

test/tint/builtins/gen/var/pow/a8f6b2.wgsl.expected.msl

@@ -0,0 +1,33 @@
+#include <metal_stdlib>
+
+using namespace metal;
+void pow_a8f6b2() {
+  float4 res = float4(1.0f);
+}
+
+struct tint_symbol {
+  float4 value [[position]];
+};
+
+float4 vertex_main_inner() {
+  pow_a8f6b2();
+  return float4(0.0f);
+}
+
+vertex tint_symbol vertex_main() {
+  float4 const inner_result = vertex_main_inner();
+  tint_symbol wrapper_result = {};
+  wrapper_result.value = inner_result;
+  return wrapper_result;
+}
+
+fragment void fragment_main() {
+  pow_a8f6b2();
+  return;
+}
+
+kernel void compute_main() {
+  pow_a8f6b2();
+  return;
+}
+

test/tint/builtins/gen/var/pow/a8f6b2.wgsl.expected.spvasm

@@ -0,0 +1,64 @@
+; SPIR-V
+; Version: 1.3
+; Generator: Google Tint Compiler; 0
+; Bound: 30
+; Schema: 0
+               OpCapability Shader
+               OpMemoryModel Logical GLSL450
+               OpEntryPoint Vertex %vertex_main "vertex_main" %value %vertex_point_size
+               OpEntryPoint Fragment %fragment_main "fragment_main"
+               OpEntryPoint GLCompute %compute_main "compute_main"
+               OpExecutionMode %fragment_main OriginUpperLeft
+               OpExecutionMode %compute_main LocalSize 1 1 1
+               OpName %value "value"
+               OpName %vertex_point_size "vertex_point_size"
+               OpName %pow_a8f6b2 "pow_a8f6b2"
+               OpName %res "res"
+               OpName %vertex_main_inner "vertex_main_inner"
+               OpName %vertex_main "vertex_main"
+               OpName %fragment_main "fragment_main"
+               OpName %compute_main "compute_main"
+               OpDecorate %value BuiltIn Position
+               OpDecorate %vertex_point_size BuiltIn PointSize
+      %float = OpTypeFloat 32
+    %v4float = OpTypeVector %float 4
+%_ptr_Output_v4float = OpTypePointer Output %v4float
+          %5 = OpConstantNull %v4float
+      %value = OpVariable %_ptr_Output_v4float Output %5
+%_ptr_Output_float = OpTypePointer Output %float
+          %8 = OpConstantNull %float
+%vertex_point_size = OpVariable %_ptr_Output_float Output %8
+       %void = OpTypeVoid
+          %9 = OpTypeFunction %void
+    %float_1 = OpConstant %float 1
+         %14 = OpConstantComposite %v4float %float_1 %float_1 %float_1 %float_1
+%_ptr_Function_v4float = OpTypePointer Function %v4float
+         %17 = OpTypeFunction %v4float
+ %pow_a8f6b2 = OpFunction %void None %9
+         %12 = OpLabel
+        %res = OpVariable %_ptr_Function_v4float Function %5
+               OpStore %res %14
+               OpReturn
+               OpFunctionEnd
+%vertex_main_inner = OpFunction %v4float None %17
+         %19 = OpLabel
+         %20 = OpFunctionCall %void %pow_a8f6b2
+               OpReturnValue %5
+               OpFunctionEnd
+%vertex_main = OpFunction %void None %9
+         %22 = OpLabel
+         %23 = OpFunctionCall %v4float %vertex_main_inner
+               OpStore %value %23
+               OpStore %vertex_point_size %float_1
+               OpReturn
+               OpFunctionEnd
+%fragment_main = OpFunction %void None %9
+         %25 = OpLabel
+         %26 = OpFunctionCall %void %pow_a8f6b2
+               OpReturn
+               OpFunctionEnd
+%compute_main = OpFunction %void None %9
+         %28 = OpLabel
+         %29 = OpFunctionCall %void %pow_a8f6b2
+               OpReturn
+               OpFunctionEnd

test/tint/builtins/gen/var/pow/a8f6b2.wgsl.expected.wgsl

@@ -0,0 +1,21 @@
+fn pow_a8f6b2() {
+  const arg_0 = vec4(1.0);
+  const arg_1 = vec4(1.0);
+  var res = pow(arg_0, arg_1);
+}
+
+@vertex
+fn vertex_main() -> @builtin(position) vec4<f32> {
+  pow_a8f6b2();
+  return vec4<f32>();
+}
+
+@fragment
+fn fragment_main() {
+  pow_a8f6b2();
+}
+
+@compute @workgroup_size(1)
+fn compute_main() {
+  pow_a8f6b2();
+}

test/tint/builtins/gen/var/pow/bc91ed.wgsl

@@ -0,0 +1,45 @@
+// Copyright 2022 The Tint Authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+////////////////////////////////////////////////////////////////////////////////
+// File generated by tools/src/cmd/gen
+// using the template:
+//   test/tint/builtins/gen/gen.wgsl.tmpl
+//
+// Do not modify this file directly
+////////////////////////////////////////////////////////////////////////////////
+
+
+// fn pow(vec<2, fa>, vec<2, fa>) -> vec<2, fa>
+fn pow_bc91ed() {
+  const arg_0 = vec2(1.);
+  const arg_1 = vec2(1.);
+  var res = pow(arg_0, arg_1);
+}
+
+@vertex
+fn vertex_main() -> @builtin(position) vec4<f32> {
+  pow_bc91ed();
+  return vec4<f32>();
+}
+
+@fragment
+fn fragment_main() {
+  pow_bc91ed();
+}
+
+@compute @workgroup_size(1)
+fn compute_main() {
+  pow_bc91ed();
+}

test/tint/builtins/gen/var/pow/bc91ed.wgsl.expected.dxc.hlsl

@@ -0,0 +1,30 @@
+void pow_bc91ed() {
+  float2 res = (1.0f).xx;
+}
+
+struct tint_symbol {
+  float4 value : SV_Position;
+};
+
+float4 vertex_main_inner() {
+  pow_bc91ed();
+  return (0.0f).xxxx;
+}
+
+tint_symbol vertex_main() {
+  const float4 inner_result = vertex_main_inner();
+  tint_symbol wrapper_result = (tint_symbol)0;
+  wrapper_result.value = inner_result;
+  return wrapper_result;
+}
+
+void fragment_main() {
+  pow_bc91ed();
+  return;
+}
+
+[numthreads(1, 1, 1)]
+void compute_main() {
+  pow_bc91ed();
+  return;
+}

test/tint/builtins/gen/var/pow/bc91ed.wgsl.expected.fxc.hlsl

@@ -0,0 +1,30 @@
+void pow_bc91ed() {
+  float2 res = (1.0f).xx;
+}
+
+struct tint_symbol {
+  float4 value : SV_Position;
+};
+
+float4 vertex_main_inner() {
+  pow_bc91ed();
+  return (0.0f).xxxx;
+}
+
+tint_symbol vertex_main() {
+  const float4 inner_result = vertex_main_inner();
+  tint_symbol wrapper_result = (tint_symbol)0;
+  wrapper_result.value = inner_result;
+  return wrapper_result;
+}
+
+void fragment_main() {
+  pow_bc91ed();
+  return;
+}
+
+[numthreads(1, 1, 1)]
+void compute_main() {
+  pow_bc91ed();
+  return;
+}

test/tint/builtins/gen/var/pow/bc91ed.wgsl.expected.glsl

@@ -0,0 +1,49 @@
+#version 310 es
+
+void pow_bc91ed() {
+  vec2 res = vec2(1.0f);
+}
+
+vec4 vertex_main() {
+  pow_bc91ed();
+  return vec4(0.0f);
+}
+
+void main() {
+  gl_PointSize = 1.0;
+  vec4 inner_result = vertex_main();
+  gl_Position = inner_result;
+  gl_Position.y = -(gl_Position.y);
+  gl_Position.z = ((2.0f * gl_Position.z) - gl_Position.w);
+  return;
+}
+#version 310 es
+precision mediump float;
+
+void pow_bc91ed() {
+  vec2 res = vec2(1.0f);
+}
+
+void fragment_main() {
+  pow_bc91ed();
+}
+
+void main() {
+  fragment_main();
+  return;
+}
+#version 310 es
+
+void pow_bc91ed() {
+  vec2 res = vec2(1.0f);
+}
+
+void compute_main() {
+  pow_bc91ed();
+}
+
+layout(local_size_x = 1, local_size_y = 1, local_size_z = 1) in;
+void main() {
+  compute_main();
+  return;
+}

test/tint/builtins/gen/var/pow/bc91ed.wgsl.expected.msl

@@ -0,0 +1,33 @@
+#include <metal_stdlib>
+
+using namespace metal;
+void pow_bc91ed() {
+  float2 res = float2(1.0f);
+}
+
+struct tint_symbol {
+  float4 value [[position]];
+};
+
+float4 vertex_main_inner() {
+  pow_bc91ed();
+  return float4(0.0f);
+}
+
+vertex tint_symbol vertex_main() {
+  float4 const inner_result = vertex_main_inner();
+  tint_symbol wrapper_result = {};
+  wrapper_result.value = inner_result;
+  return wrapper_result;
+}
+
+fragment void fragment_main() {
+  pow_bc91ed();
+  return;
+}
+
+kernel void compute_main() {
+  pow_bc91ed();
+  return;
+}
+

test/tint/builtins/gen/var/pow/bc91ed.wgsl.expected.spvasm

@@ -0,0 +1,66 @@
+; SPIR-V
+; Version: 1.3
+; Generator: Google Tint Compiler; 0
+; Bound: 32
+; Schema: 0
+               OpCapability Shader
+               OpMemoryModel Logical GLSL450
+               OpEntryPoint Vertex %vertex_main "vertex_main" %value %vertex_point_size
+               OpEntryPoint Fragment %fragment_main "fragment_main"
+               OpEntryPoint GLCompute %compute_main "compute_main"
+               OpExecutionMode %fragment_main OriginUpperLeft
+               OpExecutionMode %compute_main LocalSize 1 1 1
+               OpName %value "value"
+               OpName %vertex_point_size "vertex_point_size"
+               OpName %pow_bc91ed "pow_bc91ed"
+               OpName %res "res"
+               OpName %vertex_main_inner "vertex_main_inner"
+               OpName %vertex_main "vertex_main"
+               OpName %fragment_main "fragment_main"
+               OpName %compute_main "compute_main"
+               OpDecorate %value BuiltIn Position
+               OpDecorate %vertex_point_size BuiltIn PointSize
+      %float = OpTypeFloat 32
+    %v4float = OpTypeVector %float 4
+%_ptr_Output_v4float = OpTypePointer Output %v4float
+          %5 = OpConstantNull %v4float
+      %value = OpVariable %_ptr_Output_v4float Output %5
+%_ptr_Output_float = OpTypePointer Output %float
+          %8 = OpConstantNull %float
+%vertex_point_size = OpVariable %_ptr_Output_float Output %8
+       %void = OpTypeVoid
+          %9 = OpTypeFunction %void
+    %v2float = OpTypeVector %float 2
+    %float_1 = OpConstant %float 1
+         %15 = OpConstantComposite %v2float %float_1 %float_1
+%_ptr_Function_v2float = OpTypePointer Function %v2float
+         %18 = OpConstantNull %v2float
+         %19 = OpTypeFunction %v4float
+ %pow_bc91ed = OpFunction %void None %9
+         %12 = OpLabel
+        %res = OpVariable %_ptr_Function_v2float Function %18
+               OpStore %res %15
+               OpReturn
+               OpFunctionEnd
+%vertex_main_inner = OpFunction %v4float None %19
+         %21 = OpLabel
+         %22 = OpFunctionCall %void %pow_bc91ed
+               OpReturnValue %5
+               OpFunctionEnd
+%vertex_main = OpFunction %void None %9
+         %24 = OpLabel
+         %25 = OpFunctionCall %v4float %vertex_main_inner
+               OpStore %value %25
+               OpStore %vertex_point_size %float_1
+               OpReturn
+               OpFunctionEnd
+%fragment_main = OpFunction %void None %9
+         %27 = OpLabel
+         %28 = OpFunctionCall %void %pow_bc91ed
+               OpReturn
+               OpFunctionEnd
+%compute_main = OpFunction %void None %9
+         %30 = OpLabel
+         %31 = OpFunctionCall %void %pow_bc91ed
+               OpReturn
+               OpFunctionEnd

test/tint/builtins/gen/var/pow/bc91ed.wgsl.expected.wgsl

@@ -0,0 +1,21 @@
+fn pow_bc91ed() {
+  const arg_0 = vec2(1.0);
+  const arg_1 = vec2(1.0);
+  var res = pow(arg_0, arg_1);
+}
+
+@vertex
+fn vertex_main() -> @builtin(position) vec4<f32> {
+  pow_bc91ed();
+  return vec4<f32>();
+}
+
+@fragment
+fn fragment_main() {
+  pow_bc91ed();
+}
+
+@compute @workgroup_size(1)
+fn compute_main() {
+  pow_bc91ed();
+}

test/tint/builtins/gen/var/pow/e42f20.wgsl

@@ -0,0 +1,45 @@
+// Copyright 2022 The Tint Authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+////////////////////////////////////////////////////////////////////////////////
+// File generated by tools/src/cmd/gen
+// using the template:
+//   test/tint/builtins/gen/gen.wgsl.tmpl
+//
+// Do not modify this file directly
+////////////////////////////////////////////////////////////////////////////////
+
+
+// fn pow(vec<3, fa>, vec<3, fa>) -> vec<3, fa>
+fn pow_e42f20() {
+  const arg_0 = vec3(1.);
+  const arg_1 = vec3(1.);
+  var res = pow(arg_0, arg_1);
+}
+
+@vertex
+fn vertex_main() -> @builtin(position) vec4<f32> {
+  pow_e42f20();
+  return vec4<f32>();
+}
+
+@fragment
+fn fragment_main() {
+  pow_e42f20();
+}
+
+@compute @workgroup_size(1)
+fn compute_main() {
+  pow_e42f20();
+}

test/tint/builtins/gen/var/pow/e42f20.wgsl.expected.dxc.hlsl

@@ -0,0 +1,30 @@
+void pow_e42f20() {
+  float3 res = (1.0f).xxx;
+}
+
+struct tint_symbol {
+  float4 value : SV_Position;
+};
+
+float4 vertex_main_inner() {
+  pow_e42f20();
+  return (0.0f).xxxx;
+}
+
+tint_symbol vertex_main() {
+  const float4 inner_result = vertex_main_inner();
+  tint_symbol wrapper_result = (tint_symbol)0;
+  wrapper_result.value = inner_result;
+  return wrapper_result;
+}
+
+void fragment_main() {
+  pow_e42f20();
+  return;
+}
+
+[numthreads(1, 1, 1)]
+void compute_main() {
+  pow_e42f20();
+  return;
+}

test/tint/builtins/gen/var/pow/e42f20.wgsl.expected.fxc.hlsl

@@ -0,0 +1,30 @@
+void pow_e42f20() {
+  float3 res = (1.0f).xxx;
+}
+
+struct tint_symbol {
+  float4 value : SV_Position;
+};
+
+float4 vertex_main_inner() {
+  pow_e42f20();
+  return (0.0f).xxxx;
+}
+
+tint_symbol vertex_main() {
+  const float4 inner_result = vertex_main_inner();
+  tint_symbol wrapper_result = (tint_symbol)0;
+  wrapper_result.value = inner_result;
+  return wrapper_result;
+}
+
+void fragment_main() {
+  pow_e42f20();
+  return;
+}
+
+[numthreads(1, 1, 1)]
+void compute_main() {
+  pow_e42f20();
+  return;
+}

test/tint/builtins/gen/var/pow/e42f20.wgsl.expected.glsl

@@ -0,0 +1,49 @@
+#version 310 es
+
+void pow_e42f20() {
+  vec3 res = vec3(1.0f);
+}
+
+vec4 vertex_main() {
+  pow_e42f20();
+  return vec4(0.0f);
+}
+
+void main() {
+  gl_PointSize = 1.0;
+  vec4 inner_result = vertex_main();
+  gl_Position = inner_result;
+  gl_Position.y = -(gl_Position.y);
+  gl_Position.z = ((2.0f * gl_Position.z) - gl_Position.w);
+  return;
+}
+#version 310 es
+precision mediump float;
+
+void pow_e42f20() {
+  vec3 res = vec3(1.0f);
+}
+
+void fragment_main() {
+  pow_e42f20();
+}
+
+void main() {
+  fragment_main();
+  return;
+}
+#version 310 es
+
+void pow_e42f20() {
+  vec3 res = vec3(1.0f);
+}
+
+void compute_main() {
+  pow_e42f20();
+}
+
+layout(local_size_x = 1, local_size_y = 1, local_size_z = 1) in;
+void main() {
+  compute_main();
+  return;
+}

test/tint/builtins/gen/var/pow/e42f20.wgsl.expected.msl

@@ -0,0 +1,33 @@
+#include <metal_stdlib>
+
+using namespace metal;
+void pow_e42f20() {
+  float3 res = float3(1.0f);
+}
+
+struct tint_symbol {
+  float4 value [[position]];
+};
+
+float4 vertex_main_inner() {
+  pow_e42f20();
+  return float4(0.0f);
+}
+
+vertex tint_symbol vertex_main() {
+  float4 const inner_result = vertex_main_inner();
+  tint_symbol wrapper_result = {};
+  wrapper_result.value = inner_result;
+  return wrapper_result;
+}
+
+fragment void fragment_main() {
+  pow_e42f20();
+  return;
+}
+
+kernel void compute_main() {
+  pow_e42f20();
+  return;
+}
+

test/tint/builtins/gen/var/pow/e42f20.wgsl.expected.spvasm

@@ -0,0 +1,66 @@
+; SPIR-V
+; Version: 1.3
+; Generator: Google Tint Compiler; 0
+; Bound: 32
+; Schema: 0
+               OpCapability Shader
+               OpMemoryModel Logical GLSL450
+               OpEntryPoint Vertex %vertex_main "vertex_main" %value %vertex_point_size
+               OpEntryPoint Fragment %fragment_main "fragment_main"
+               OpEntryPoint GLCompute %compute_main "compute_main"
+               OpExecutionMode %fragment_main OriginUpperLeft
+               OpExecutionMode %compute_main LocalSize 1 1 1
+               OpName %value "value"
+               OpName %vertex_point_size "vertex_point_size"
+               OpName %pow_e42f20 "pow_e42f20"
+               OpName %res "res"
+               OpName %vertex_main_inner "vertex_main_inner"
+               OpName %vertex_main "vertex_main"
+               OpName %fragment_main "fragment_main"
+               OpName %compute_main "compute_main"
+               OpDecorate %value BuiltIn Position
+               OpDecorate %vertex_point_size BuiltIn PointSize
+      %float = OpTypeFloat 32
+    %v4float = OpTypeVector %float 4
+%_ptr_Output_v4float = OpTypePointer Output %v4float
+          %5 = OpConstantNull %v4float
+      %value = OpVariable %_ptr_Output_v4float Output %5
+%_ptr_Output_float = OpTypePointer Output %float
+          %8 = OpConstantNull %float
+%vertex_point_size = OpVariable %_ptr_Output_float Output %8
+       %void = OpTypeVoid
+          %9 = OpTypeFunction %void
+    %v3float = OpTypeVector %float 3
+    %float_1 = OpConstant %float 1
+         %15 = OpConstantComposite %v3float %float_1 %float_1 %float_1
+%_ptr_Function_v3float = OpTypePointer Function %v3float
+         %18 = OpConstantNull %v3float
+         %19 = OpTypeFunction %v4float
+ %pow_e42f20 = OpFunction %void None %9
+         %12 = OpLabel
+        %res = OpVariable %_ptr_Function_v3float Function %18
+               OpStore %res %15
+               OpReturn
+               OpFunctionEnd
+%vertex_main_inner = OpFunction %v4float None %19
+         %21 = OpLabel
+         %22 = OpFunctionCall %void %pow_e42f20
+               OpReturnValue %5
+               OpFunctionEnd
+%vertex_main = OpFunction %void None %9
+         %24 = OpLabel
+         %25 = OpFunctionCall %v4float %vertex_main_inner
+               OpStore %value %25
+               OpStore %vertex_point_size %float_1
+               OpReturn
+               OpFunctionEnd
+%fragment_main = OpFunction %void None %9
+         %27 = OpLabel
+         %28 = OpFunctionCall %void %pow_e42f20
+               OpReturn
+               OpFunctionEnd
+%compute_main = OpFunction %void None %9
+         %30 = OpLabel
+         %31 = OpFunctionCall %void %pow_e42f20
+               OpReturn
+               OpFunctionEnd

test/tint/builtins/gen/var/pow/e42f20.wgsl.expected.wgsl

@@ -0,0 +1,21 @@
+fn pow_e42f20() {
+  const arg_0 = vec3(1.0);
+  const arg_1 = vec3(1.0);
+  var res = pow(arg_0, arg_1);
+}
+
+@vertex
+fn vertex_main() -> @builtin(position) vec4<f32> {
+  pow_e42f20();
+  return vec4<f32>();
+}
+
+@fragment
+fn fragment_main() {
+  pow_e42f20();
+}
+
+@compute @workgroup_size(1)
+fn compute_main() {
+  pow_e42f20();
+}