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spirv: Add SignedZeroInfNanPreserve logic

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This commit is contained in:
ameerj 2021-03-14 01:51:40 -05:00
parent 8d470c2e63
commit b9f7bf4472
3 changed files with 12 additions and 0 deletions
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6
src/shader_recompiler/backend/spirv/emit_spirv.cpp
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@ -124,6 +124,12 @@ void SetupDenormControl(const Profile& profile, const IR::Program& program, Emit
}
ctx.AddExtension("SPV_KHR_float_controls");
if (info.uses_fp16 && profile.support_fp16_signed_zero_nan_preserve) {
ctx.AddExecutionMode(main_func, spv::ExecutionMode::SignedZeroInfNanPreserve);
}
if (profile.support_fp32_signed_zero_nan_preserve) {
ctx.AddExecutionMode(main_func, spv::ExecutionMode::SignedZeroInfNanPreserve);
}
if (info.uses_fp32_denorms_flush && info.uses_fp32_denorms_preserve) {
// LOG_ERROR(HW_GPU, "Fp32 denorm flush and preserve on the same shader");
} else if (info.uses_fp32_denorms_flush) {

2
src/shader_recompiler/profile.h
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@ -15,6 +15,8 @@ struct Profile {
bool support_fp32_denorm_preserve{};
bool support_fp16_denorm_flush{};
bool support_fp32_denorm_flush{};
bool support_fp16_signed_zero_nan_preserve{};
bool support_fp32_signed_zero_nan_preserve{};
// FClamp is broken and OpFMax + OpFMin should be used instead
bool has_broken_spirv_clamp{};

4
src/video_core/renderer_vulkan/vk_pipeline_cache.cpp
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@ -193,6 +193,10 @@ ComputePipeline PipelineCache::CreateComputePipeline(ShaderInfo* shader_info) {
.support_fp32_denorm_preserve = float_control.shaderDenormPreserveFloat32 != VK_FALSE,
.support_fp16_denorm_flush = float_control.shaderDenormFlushToZeroFloat16 != VK_FALSE,
.support_fp32_denorm_flush = float_control.shaderDenormFlushToZeroFloat32 != VK_FALSE,
.support_fp16_signed_zero_nan_preserve =
float_control.shaderSignedZeroInfNanPreserveFloat16 != VK_FALSE,
.support_fp32_signed_zero_nan_preserve =
float_control.shaderSignedZeroInfNanPreserveFloat32 != VK_FALSE,
.has_broken_spirv_clamp = true, // TODO: is_intel
};
const auto [info, code]{Shader::RecompileSPIRV(profile, env, qmd.program_start)};