GLSL: support any() and all() on scalars.

It's a no-op.

Bug: tint:1462
Change-Id: Ic79f33682097be075eb2e99b714d1e65bed10d4d
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/82365
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Stephen White <senorblanco@chromium.org>

src/tint/writer/glsl/generator_impl.cc

@@ -689,6 +689,12 @@ bool GeneratorImpl::EmitBuiltinCall(std::ostream& out,
     // GLSL does not support abs() on unsigned arguments. However, it's a no-op.
     return EmitExpression(out, expr->args[0]);
   }
+  if ((builtin->Type() == sem::BuiltinType::kAny ||
+       builtin->Type() == sem::BuiltinType::kAll) &&
+      TypeOf(expr->args[0])->UnwrapRef()->is_scalar()) {
+    // GLSL does not support any() or all() on scalar arguments. It's a no-op.
+    return EmitExpression(out, expr->args[0]);
+  }
   if (builtin->IsBarrier()) {
     return EmitBarrierCall(out, builtin);
   }

test/tint/builtins/gen/all/353d6a.wgsl.expected.glsl

@@ -1,9 +1,7 @@
-SKIP: FAILED
-
 #version 310 es
 
 void all_353d6a() {
-  bool res = all(false);
+  bool res = false;
 }
 
 vec4 vertex_main() {
@@ -18,19 +16,11 @@ void main() {
   gl_Position.z = ((2.0f * gl_Position.z) - gl_Position.w);
   return;
 }
-Error parsing GLSL shader:
-ERROR: 0:4: 'all' : no matching overloaded function found 
-ERROR: 0:4: '=' :  cannot convert from ' const float' to ' temp bool'
-ERROR: 0:4: '' : compilation terminated 
-ERROR: 3 compilation errors.  No code generated.
-
-
-
 #version 310 es
 precision mediump float;
 
 void all_353d6a() {
-  bool res = all(false);
+  bool res = false;
 }
 
 void fragment_main() {
@@ -41,18 +31,10 @@ void main() {
   fragment_main();
   return;
 }
-Error parsing GLSL shader:
-ERROR: 0:5: 'all' : no matching overloaded function found 
-ERROR: 0:5: '=' :  cannot convert from ' const float' to ' temp bool'
-ERROR: 0:5: '' : compilation terminated 
-ERROR: 3 compilation errors.  No code generated.
-
-
-
 #version 310 es
 
 void all_353d6a() {
-  bool res = all(false);
+  bool res = false;
 }
 
 void compute_main() {
@@ -64,11 +46,3 @@ void main() {
   compute_main();
   return;
 }
-Error parsing GLSL shader:
-ERROR: 0:4: 'all' : no matching overloaded function found 
-ERROR: 0:4: '=' :  cannot convert from ' const float' to ' temp bool'
-ERROR: 0:4: '' : compilation terminated 
-ERROR: 3 compilation errors.  No code generated.
-
-
-

test/tint/builtins/gen/any/2ab91a.wgsl.expected.glsl

@@ -1,9 +1,7 @@
-SKIP: FAILED
-
 #version 310 es
 
 void any_2ab91a() {
-  bool res = any(false);
+  bool res = false;
 }
 
 vec4 vertex_main() {
@@ -18,19 +16,11 @@ void main() {
   gl_Position.z = ((2.0f * gl_Position.z) - gl_Position.w);
   return;
 }
-Error parsing GLSL shader:
-ERROR: 0:4: 'any' : no matching overloaded function found 
-ERROR: 0:4: '=' :  cannot convert from ' const float' to ' temp bool'
-ERROR: 0:4: '' : compilation terminated 
-ERROR: 3 compilation errors.  No code generated.
-
-
-
 #version 310 es
 precision mediump float;
 
 void any_2ab91a() {
-  bool res = any(false);
+  bool res = false;
 }
 
 void fragment_main() {
@@ -41,18 +31,10 @@ void main() {
   fragment_main();
   return;
 }
-Error parsing GLSL shader:
-ERROR: 0:5: 'any' : no matching overloaded function found 
-ERROR: 0:5: '=' :  cannot convert from ' const float' to ' temp bool'
-ERROR: 0:5: '' : compilation terminated 
-ERROR: 3 compilation errors.  No code generated.
-
-
-
 #version 310 es
 
 void any_2ab91a() {
-  bool res = any(false);
+  bool res = false;
 }
 
 void compute_main() {
@@ -64,11 +46,3 @@ void main() {
   compute_main();
   return;
 }
-Error parsing GLSL shader:
-ERROR: 0:4: 'any' : no matching overloaded function found 
-ERROR: 0:4: '=' :  cannot convert from ' const float' to ' temp bool'
-ERROR: 0:4: '' : compilation terminated 
-ERROR: 3 compilation errors.  No code generated.
-
-
-

test/tint/builtins/gen/textureDimensions/ba1481.wgsl.expected.glsl

@@ -1,6 +1,6 @@
 SKIP: FAILED
 
-../../src/tint/writer/glsl/generator_impl.cc:2577 internal compiler error: Multiplanar external texture transform was not run.
+../../src/tint/writer/glsl/generator_impl.cc:2582 internal compiler error: Multiplanar external texture transform was not run.
 
 
 ********************************************************************

test/tint/builtins/gen/textureLoad/8acf41.wgsl.expected.glsl

@@ -1,6 +1,6 @@
 SKIP: FAILED
 
-../../src/tint/writer/glsl/generator_impl.cc:2577 internal compiler error: Multiplanar external texture transform was not run.
+../../src/tint/writer/glsl/generator_impl.cc:2582 internal compiler error: Multiplanar external texture transform was not run.
 
 
 ********************************************************************

test/tint/builtins/gen/textureSampleLevel/979816.wgsl.expected.glsl

@@ -1,6 +1,6 @@
 SKIP: FAILED
 
-../../src/tint/writer/glsl/generator_impl.cc:2577 internal compiler error: Multiplanar external texture transform was not run.
+../../src/tint/writer/glsl/generator_impl.cc:2582 internal compiler error: Multiplanar external texture transform was not run.
 
 
 ********************************************************************