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spirv: Use ConstOffset instead of Offset when possible

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pull/8/head
ReinUsesLisp 4 years ago committed by ameerj
parent be431f5ed0
commit dbbd4b5496
3 changed files with 67 additions and 21 deletions
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17
src/shader_recompiler/backend/spirv/emit_context.h
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@ -97,6 +97,23 @@ public:
[[nodiscard]] Id Def(const IR::Value& value);
Id Const(u32 value) {
return Constant(U32[1], value);
}
Id Const(u32 element_1, u32 element_2) {
return ConstantComposite(U32[2], Const(element_1), Const(element_2));
}
Id Const(u32 element_1, u32 element_2, u32 element_3) {
return ConstantComposite(U32[3], Const(element_1), Const(element_2), Const(element_3));
}
Id Const(u32 element_1, u32 element_2, u32 element_3, u32 element_4) {
return ConstantComposite(U32[2], Const(element_1), Const(element_2), Const(element_3),
Const(element_4));
}
const Profile& profile;
Stage stage{};

8
src/shader_recompiler/backend/spirv/emit_spirv.h
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@ -490,13 +490,13 @@ Id EmitBoundImageGradient(EmitContext&);
Id EmitBoundImageRead(EmitContext&);
Id EmitBoundImageWrite(EmitContext&);
Id EmitImageSampleImplicitLod(EmitContext& ctx, IR::Inst* inst, const IR::Value& index, Id coords,
Id bias_lc, Id offset);
Id bias_lc, const IR::Value& offset);
Id EmitImageSampleExplicitLod(EmitContext& ctx, IR::Inst* inst, const IR::Value& index, Id coords,
Id lod_lc, Id offset);
Id lod_lc, const IR::Value& offset);
Id EmitImageSampleDrefImplicitLod(EmitContext& ctx, IR::Inst* inst, const IR::Value& index,
Id coords, Id dref, Id bias_lc, Id offset);
Id coords, Id dref, Id bias_lc, const IR::Value& offset);
Id EmitImageSampleDrefExplicitLod(EmitContext& ctx, IR::Inst* inst, const IR::Value& index,
Id coords, Id dref, Id lod_lc, Id offset);
Id coords, Id dref, Id lod_lc, const IR::Value& offset);
Id EmitImageGather(EmitContext& ctx, IR::Inst* inst, const IR::Value& index, Id coords,
const IR::Value& offset, const IR::Value& offset2);
Id EmitImageGatherDref(EmitContext& ctx, IR::Inst* inst, const IR::Value& index, Id coords,

63
src/shader_recompiler/backend/spirv/emit_spirv_image.cpp
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@ -12,7 +12,7 @@ namespace {
class ImageOperands {
public:
explicit ImageOperands(EmitContext& ctx, bool has_bias, bool has_lod, bool has_lod_clamp,
Id lod, Id offset) {
Id lod, const IR::Value& offset) {
if (has_bias) {
const Id bias{has_lod_clamp ? ctx.OpCompositeExtract(ctx.F32[1], lod, 0) : lod};
Add(spv::ImageOperandsMask::Bias, bias);
@ -21,9 +21,7 @@ public:
const Id lod_value{has_lod_clamp ? ctx.OpCompositeExtract(ctx.F32[1], lod, 0) : lod};
Add(spv::ImageOperandsMask::Lod, lod_value);
}
if (Sirit::ValidId(offset)) {
Add(spv::ImageOperandsMask::Offset, offset);
}
AddOffset(ctx, offset);
if (has_lod_clamp) {
const Id lod_clamp{has_bias ? ctx.OpCompositeExtract(ctx.F32[1], lod, 1) : lod};
Add(spv::ImageOperandsMask::MinLod, lod_clamp);
@ -96,6 +94,46 @@ public:
}
}
std::span<const Id> Span() const noexcept {
return std::span{operands.data(), operands.size()};
}
spv::ImageOperandsMask Mask() const noexcept {
return mask;
}
private:
void AddOffset(EmitContext& ctx, const IR::Value& offset) {
if (offset.IsEmpty()) {
return;
}
if (offset.IsImmediate()) {
Add(spv::ImageOperandsMask::ConstOffset, ctx.Constant(ctx.U32[1], offset.U32()));
return;
}
IR::Inst* const inst{offset.InstRecursive()};
if (inst->AreAllArgsImmediates()) {
switch (inst->GetOpcode()) {
case IR::Opcode::CompositeConstructU32x2:
Add(spv::ImageOperandsMask::ConstOffset,
ctx.Const(inst->Arg(0).U32(), inst->Arg(1).U32()));
return;
case IR::Opcode::CompositeConstructU32x3:
Add(spv::ImageOperandsMask::ConstOffset,
ctx.Const(inst->Arg(0).U32(), inst->Arg(1).U32(), inst->Arg(2).U32()));
return;
case IR::Opcode::CompositeConstructU32x4:
Add(spv::ImageOperandsMask::ConstOffset,
ctx.Const(inst->Arg(0).U32(), inst->Arg(1).U32(), inst->Arg(2).U32(),
inst->Arg(3).U32()));
return;
default:
break;
}
}
Add(spv::ImageOperandsMask::Offset, ctx.Def(offset));
}
void Add(spv::ImageOperandsMask new_mask, Id value) {
mask = static_cast<spv::ImageOperandsMask>(static_cast<unsigned>(mask) |
static_cast<unsigned>(new_mask));
@ -109,15 +147,6 @@ public:
operands.push_back(value_2);
}
std::span<const Id> Span() const noexcept {
return std::span{operands.data(), operands.size()};
}
spv::ImageOperandsMask Mask() const noexcept {
return mask;
}
private:
boost::container::static_vector<Id, 4> operands;
spv::ImageOperandsMask mask{};
};
@ -279,7 +308,7 @@ Id EmitBoundImageWrite(EmitContext&) {
}
Id EmitImageSampleImplicitLod(EmitContext& ctx, IR::Inst* inst, const IR::Value& index, Id coords,
Id bias_lc, Id offset) {
Id bias_lc, const IR::Value& offset) {
const auto info{inst->Flags<IR::TextureInstInfo>()};
const ImageOperands operands(ctx, info.has_bias != 0, false, info.has_lod_clamp != 0, bias_lc,
offset);
@ -289,7 +318,7 @@ Id EmitImageSampleImplicitLod(EmitContext& ctx, IR::Inst* inst, const IR::Value&
}
Id EmitImageSampleExplicitLod(EmitContext& ctx, IR::Inst* inst, const IR::Value& index, Id coords,
Id lod_lc, Id offset) {
Id lod_lc, const IR::Value& offset) {
const auto info{inst->Flags<IR::TextureInstInfo>()};
const ImageOperands operands(ctx, false, true, info.has_lod_clamp != 0, lod_lc, offset);
return Emit(&EmitContext::OpImageSparseSampleExplicitLod,
@ -298,7 +327,7 @@ Id EmitImageSampleExplicitLod(EmitContext& ctx, IR::Inst* inst, const IR::Value&
}
Id EmitImageSampleDrefImplicitLod(EmitContext& ctx, IR::Inst* inst, const IR::Value& index,
Id coords, Id dref, Id bias_lc, Id offset) {
Id coords, Id dref, Id bias_lc, const IR::Value& offset) {
const auto info{inst->Flags<IR::TextureInstInfo>()};
const ImageOperands operands(ctx, info.has_bias != 0, false, info.has_lod_clamp != 0, bias_lc,
offset);
@ -308,7 +337,7 @@ Id EmitImageSampleDrefImplicitLod(EmitContext& ctx, IR::Inst* inst, const IR::Va
}
Id EmitImageSampleDrefExplicitLod(EmitContext& ctx, IR::Inst* inst, const IR::Value& index,
Id coords, Id dref, Id lod_lc, Id offset) {
Id coords, Id dref, Id lod_lc, const IR::Value& offset) {
const auto info{inst->Flags<IR::TextureInstInfo>()};
const ImageOperands operands(ctx, false, true, info.has_lod_clamp != 0, lod_lc, offset);
return Emit(&EmitContext::OpImageSparseSampleDrefExplicitLod,

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