Alastair Donaldson f7e73d4ee3 Add tests derived from VK-GL-CTS
This adds SPIR-V assembly and WGSL tests derived from VK-GL-CTS commit
571256871c2e2f03995373e1e4a02958d8cd8cf5. The following procedure was
followed:

- Those .amber files in VK-GL-CTS wholly owned by Google were
  identified

- All GLSL and SPIR-V shaders were extracted from the Amber files and
  converted into SPIR-V binaries

- The compact-ids pass of spirv-opt was applied to each binary

- Duplicate binaries were removed

- spirv-opt -O was used to obtain an optimized version of each remaining
  binary, with duplicates discarded

- Binaries that failed validation using spirv-val with target
  environment SPIR-V 1.3 were discarded

- Those binaries that tint could not successfully convert into WGSL were
  put aside for further investigation

- SPIR-V assembly versions of the remaining binaries are included in
  this CL

- test-runner with -generate-expected and -generate-skip was used to
  generate expected .spvasm, .msl, .hlsl and .wgsl outputs for these
  SPIR-V assembly tests

- Each successfully-generated .expected.wgsl is included in this CL
  again, as a WGLSL test

- test-runner with -generate-expected and -generate-skip was used again,
  to generate expected outputs for these WGSL tests

Change-Id: Ibe9baf2729cf97e0b633db9a426f53362a5de540
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/58842
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
2021-07-23 13:10:12 +00:00

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#include <metal_stdlib>
using namespace metal;
struct buf0 {
/* 0x0000 */ int zero;
};
struct tint_array_wrapper {
int arr[1];
};
struct main_out {
float4 x_GLF_color_1;
};
struct tint_symbol_1 {
float4 x_GLF_color_1 [[color(0)]];
};
void main_1(constant buf0& x_5, thread float4* const tint_symbol_4) {
tint_array_wrapper x_9 = {};
int x_10_phi = 0;
tint_array_wrapper const x_33 = x_9;
int const x_6 = x_33.arr[0u];
while (true) {
*(tint_symbol_4) = float4(0.0f, 0.0f, 0.0f, 0.0f);
int const x_7 = x_5.zero;
int const x_8 = x_9.arr[x_7];
if ((x_8 == x_6)) {
x_10_phi = 1;
break;
}
x_10_phi = 2;
break;
}
int const x_10 = x_10_phi;
if (((x_10 == 1) || (x_10 == 2))) {
*(tint_symbol_4) = float4(1.0f, 0.0f, 0.0f, 1.0f);
} else {
*(tint_symbol_4) = float4(0.0f, 0.0f, 0.0f, 0.0f);
}
return;
}
fragment tint_symbol_1 tint_symbol(constant buf0& x_5 [[buffer(0)]]) {
thread float4 tint_symbol_5 = 0.0f;
main_1(x_5, &(tint_symbol_5));
main_out const tint_symbol_2 = {.x_GLF_color_1=tint_symbol_5};
tint_symbol_1 const tint_symbol_3 = {.x_GLF_color_1=tint_symbol_2.x_GLF_color_1};
return tint_symbol_3;
}