test/tint: add test case for tint:1563

Demonstrates that this is not an issue.

Fixed: tint:1563
Change-Id: I5a33e6805cf0a5c52a6306f6d7e5949cee5636a5
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/105641
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Ben Clayton <bclayton@google.com>
Auto-Submit: Ben Clayton <bclayton@google.com>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>

test/tint/bug/tint/1563.wgsl

@@ -0,0 +1,8 @@
+// flags: --transform robustness
+fn foo() -> f32 {
+  let oob = 99;
+  let b = vec4<f32>()[oob];  // 99 is out of bounds
+  var v: vec4<f32>;
+  v[oob] = b;  // 99 is out of bounds
+  return b;
+}

test/tint/bug/tint/1563.wgsl.expected.dxc.hlsl

@@ -0,0 +1,16 @@
+void set_float4(inout float4 vec, int idx, float val) {
+  vec = (idx.xxxx == int4(0, 1, 2, 3)) ? val.xxxx : vec;
+}
+
+[numthreads(1, 1, 1)]
+void unused_entry_point() {
+  return;
+}
+
+float foo() {
+  const int oob = 99;
+  const float b = (0.0f).xxxx[min(uint(oob), 3u)];
+  float4 v = float4(0.0f, 0.0f, 0.0f, 0.0f);
+  set_float4(v, min(uint(oob), 3u), b);
+  return b;
+}

test/tint/bug/tint/1563.wgsl.expected.fxc.hlsl

@@ -0,0 +1,16 @@
+void set_float4(inout float4 vec, int idx, float val) {
+  vec = (idx.xxxx == int4(0, 1, 2, 3)) ? val.xxxx : vec;
+}
+
+[numthreads(1, 1, 1)]
+void unused_entry_point() {
+  return;
+}
+
+float foo() {
+  const int oob = 99;
+  const float b = (0.0f).xxxx[min(uint(oob), 3u)];
+  float4 v = float4(0.0f, 0.0f, 0.0f, 0.0f);
+  set_float4(v, min(uint(oob), 3u), b);
+  return b;
+}

test/tint/bug/tint/1563.wgsl.expected.glsl

@@ -0,0 +1,14 @@
+#version 310 es
+
+layout(local_size_x = 1, local_size_y = 1, local_size_z = 1) in;
+void unused_entry_point() {
+  return;
+}
+float foo() {
+  int oob = 99;
+  float b = vec4(0.0f)[min(uint(oob), 3u)];
+  vec4 v = vec4(0.0f, 0.0f, 0.0f, 0.0f);
+  v[min(uint(oob), 3u)] = b;
+  return b;
+}
+

test/tint/bug/tint/1563.wgsl.expected.msl

@@ -0,0 +1,11 @@
+#include <metal_stdlib>
+
+using namespace metal;
+float foo() {
+  int const oob = 99;
+  float const b = float4(0.0f)[min(uint(oob), 3u)];
+  float4 v = 0.0f;
+  v[min(uint(oob), 3u)] = b;
+  return b;
+}
+

test/tint/bug/tint/1563.wgsl.expected.spvasm

@@ -0,0 +1,41 @@
+; SPIR-V
+; Version: 1.3
+; Generator: Google Tint Compiler; 0
+; Bound: 25
+; Schema: 0
+               OpCapability Shader
+         %15 = OpExtInstImport "GLSL.std.450"
+               OpMemoryModel Logical GLSL450
+               OpEntryPoint GLCompute %unused_entry_point "unused_entry_point"
+               OpExecutionMode %unused_entry_point LocalSize 1 1 1
+               OpName %unused_entry_point "unused_entry_point"
+               OpName %foo "foo"
+               OpName %v "v"
+       %void = OpTypeVoid
+          %1 = OpTypeFunction %void
+      %float = OpTypeFloat 32
+          %5 = OpTypeFunction %float
+        %int = OpTypeInt 32 1
+     %int_99 = OpConstant %int 99
+    %v4float = OpTypeVector %float 4
+         %12 = OpConstantNull %v4float
+       %uint = OpTypeInt 32 0
+     %uint_3 = OpConstant %uint 3
+%_ptr_Function_v4float = OpTypePointer Function %v4float
+%_ptr_Function_float = OpTypePointer Function %float
+%unused_entry_point = OpFunction %void None %1
+          %4 = OpLabel
+               OpReturn
+               OpFunctionEnd
+        %foo = OpFunction %float None %5
+          %8 = OpLabel
+          %v = OpVariable %_ptr_Function_v4float Function %12
+         %16 = OpBitcast %uint %int_99
+         %13 = OpExtInst %uint %15 UMin %16 %uint_3
+         %18 = OpVectorExtractDynamic %float %12 %13
+         %22 = OpBitcast %uint %int_99
+         %21 = OpExtInst %uint %15 UMin %22 %uint_3
+         %24 = OpAccessChain %_ptr_Function_float %v %21
+               OpStore %24 %18
+               OpReturnValue %18
+               OpFunctionEnd

test/tint/bug/tint/1563.wgsl.expected.wgsl

@@ -0,0 +1,7 @@
+fn foo() -> f32 {
+  let oob = 99;
+  let b = vec4<f32>()[min(u32(oob), 3u)];
+  var v : vec4<f32>;
+  v[min(u32(oob), 3u)] = b;
+  return b;
+}