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shader: Add denorm flush support

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This commit is contained in:
ReinUsesLisp 2021-02-20 03:30:13 -03:00 • committed by ameerj
parent a2fe90fa60
commit 6350a277a3
20 changed files with 260 additions and 93 deletions
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71
src/shader_recompiler/ir_opt/collect_shader_info_pass.cpp
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@ -2,23 +2,28 @@
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include "shader_recompiler/frontend/ir/microinstruction.h"
#include "shader_recompiler/frontend/ir/modifiers.h"
#include "shader_recompiler/frontend/ir/program.h"
#include "shader_recompiler/shader_info.h"
namespace Shader::Optimization {
namespace {
void AddConstantBufferDescriptor(Info& info, u32 index) {
auto& descriptor{info.constant_buffers.at(index)};
if (descriptor) {
void AddConstantBufferDescriptor(Info& info, u32 index, u32 count) {
if (count != 1) {
throw NotImplementedException("Constant buffer descriptor indexing");
}
if ((info.constant_buffer_mask & (1U << index)) != 0) {
return;
}
descriptor = &info.constant_buffer_descriptors.emplace_back(Info::ConstantBufferDescriptor{
info.constant_buffer_mask |= 1U << index;
info.constant_buffer_descriptors.push_back({
.index{index},
.count{1},
});
}
void Visit(Info& info, IR::Inst& inst) {
void VisitUsages(Info& info, IR::Inst& inst) {
switch (inst.Opcode()) {
case IR::Opcode::WorkgroupId:
info.uses_workgroup_id = true;
@ -72,7 +77,7 @@ void Visit(Info& info, IR::Inst& inst) {
break;
case IR::Opcode::GetCbuf:
if (const IR::Value index{inst.Arg(0)}; index.IsImmediate()) {
AddConstantBufferDescriptor(info, index.U32());
AddConstantBufferDescriptor(info, index.U32(), 1);
} else {
throw NotImplementedException("Constant buffer with non-immediate index");
}
@ -81,6 +86,60 @@ void Visit(Info& info, IR::Inst& inst) {
break;
}
}
void VisitFpModifiers(Info& info, IR::Inst& inst) {
switch (inst.Opcode()) {
case IR::Opcode::FPAdd16:
case IR::Opcode::FPFma16:
case IR::Opcode::FPMul16:
case IR::Opcode::FPRoundEven16:
case IR::Opcode::FPFloor16:
case IR::Opcode::FPCeil16:
case IR::Opcode::FPTrunc16: {
const auto control{inst.Flags<IR::FpControl>()};
switch (control.fmz_mode) {
case IR::FmzMode::DontCare:
break;
case IR::FmzMode::FTZ:
case IR::FmzMode::FMZ:
info.uses_fp16_denorms_flush = true;
break;
case IR::FmzMode::None:
info.uses_fp16_denorms_preserve = true;
break;
}
break;
}
case IR::Opcode::FPAdd32:
case IR::Opcode::FPFma32:
case IR::Opcode::FPMul32:
case IR::Opcode::FPRoundEven32:
case IR::Opcode::FPFloor32:
case IR::Opcode::FPCeil32:
case IR::Opcode::FPTrunc32: {
const auto control{inst.Flags<IR::FpControl>()};
switch (control.fmz_mode) {
case IR::FmzMode::DontCare:
break;
case IR::FmzMode::FTZ:
case IR::FmzMode::FMZ:
info.uses_fp32_denorms_flush = true;
break;
case IR::FmzMode::None:
info.uses_fp32_denorms_preserve = true;
break;
}
break;
}
default:
break;
}
}
void Visit(Info& info, IR::Inst& inst) {
VisitUsages(info, inst);
VisitFpModifiers(info, inst);
}
} // Anonymous namespace
void CollectShaderInfoPass(IR::Program& program) {