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glasm: Implement shuffle and vote instructions on GLASM

This commit is contained in:
ReinUsesLisp 2021-05-10 18:21:28 -03:00 committed by ameerj
parent decda4a2c7
commit c4fd6b55bc
10 changed files with 166 additions and 100 deletions
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17
src/shader_recompiler/backend/glasm/emit_context.cpp
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@ -25,6 +25,23 @@ EmitContext::EmitContext(IR::Program& program) {
if (const size_t num = program.info.storage_buffers_descriptors.size(); num > 0) {
Add("PARAM c[{}]={{program.local[0..{}]}};", num, num - 1);
}
switch (program.stage) {
case Stage::VertexA:
case Stage::VertexB:
stage_name = "vertex";
break;
case Stage::TessellationControl:
case Stage::TessellationEval:
case Stage::Geometry:
stage_name = "primitive";
break;
case Stage::Fragment:
stage_name = "fragment";
break;
case Stage::Compute:
stage_name = "compute";
break;
}
}
} // namespace Shader::Backend::GLASM

2
src/shader_recompiler/backend/glasm/emit_context.h
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@ -45,6 +45,8 @@ public:
std::string code;
RegAlloc reg_alloc{*this};
std::string_view stage_name = "invalid";
};
} // namespace Shader::Backend::GLASM

6
src/shader_recompiler/backend/glasm/emit_glasm.cpp
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@ -189,6 +189,12 @@ void SetupOptions(std::string& header, Info info) {
if (info.uses_atomic_f16x2_add || info.uses_atomic_f16x2_min || info.uses_atomic_f16x2_max) {
header += "OPTION NV_shader_atomic_fp16_vector;";
}
if (info.uses_subgroup_invocation_id || info.uses_subgroup_mask) {
header += "OPTION NV_shader_thread_group;";
}
if (info.uses_subgroup_shuffles) {
header += "OPTION NV_shader_thread_shuffle;";
}
}
} // Anonymous namespace

28
src/shader_recompiler/backend/glasm/emit_glasm_instructions.h
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@ -584,24 +584,24 @@ void EmitImageAtomicXor32(EmitContext& ctx, IR::Inst& inst, const IR::Value& ind
ScalarU32 value);
void EmitImageAtomicExchange32(EmitContext& ctx, IR::Inst& inst, const IR::Value& index,
Register coords, ScalarU32 value);
void EmitLaneId(EmitContext& ctx);
void EmitVoteAll(EmitContext& ctx, ScalarS32 pred);
void EmitVoteAny(EmitContext& ctx, ScalarS32 pred);
void EmitVoteEqual(EmitContext& ctx, ScalarS32 pred);
void EmitSubgroupBallot(EmitContext& ctx, ScalarS32 pred);
void EmitSubgroupEqMask(EmitContext& ctx);
void EmitSubgroupLtMask(EmitContext& ctx);
void EmitSubgroupLeMask(EmitContext& ctx);
void EmitSubgroupGtMask(EmitContext& ctx);
void EmitSubgroupGeMask(EmitContext& ctx);
void EmitLaneId(EmitContext& ctx, IR::Inst& inst);
void EmitVoteAll(EmitContext& ctx, IR::Inst& inst, ScalarS32 pred);
void EmitVoteAny(EmitContext& ctx, IR::Inst& inst, ScalarS32 pred);
void EmitVoteEqual(EmitContext& ctx, IR::Inst& inst, ScalarS32 pred);
void EmitSubgroupBallot(EmitContext& ctx, IR::Inst& inst, ScalarS32 pred);
void EmitSubgroupEqMask(EmitContext& ctx, IR::Inst& inst);
void EmitSubgroupLtMask(EmitContext& ctx, IR::Inst& inst);
void EmitSubgroupLeMask(EmitContext& ctx, IR::Inst& inst);
void EmitSubgroupGtMask(EmitContext& ctx, IR::Inst& inst);
void EmitSubgroupGeMask(EmitContext& ctx, IR::Inst& inst);
void EmitShuffleIndex(EmitContext& ctx, IR::Inst& inst, ScalarU32 value, ScalarU32 index,
ScalarU32 clamp, ScalarU32 segmentation_mask);
const IR::Value& clamp, const IR::Value& segmentation_mask);
void EmitShuffleUp(EmitContext& ctx, IR::Inst& inst, ScalarU32 value, ScalarU32 index,
ScalarU32 clamp, ScalarU32 segmentation_mask);
const IR::Value& clamp, const IR::Value& segmentation_mask);
void EmitShuffleDown(EmitContext& ctx, IR::Inst& inst, ScalarU32 value, ScalarU32 index,
ScalarU32 clamp, ScalarU32 segmentation_mask);
const IR::Value& clamp, const IR::Value& segmentation_mask);
void EmitShuffleButterfly(EmitContext& ctx, IR::Inst& inst, ScalarU32 value, ScalarU32 index,
ScalarU32 clamp, ScalarU32 segmentation_mask);
const IR::Value& clamp, const IR::Value& segmentation_mask);
void EmitFSwizzleAdd(EmitContext& ctx, ScalarF32 op_a, ScalarF32 op_b, ScalarU32 swizzle);
void EmitDPdxFine(EmitContext& ctx, ScalarF32 op_a);
void EmitDPdyFine(EmitContext& ctx, ScalarF32 op_a);

84
src/shader_recompiler/backend/glasm/emit_glasm_not_implemented.cpp
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@ -21,9 +21,7 @@ void EmitPhi(EmitContext& ctx, IR::Inst& inst) {
NotImplemented();
}
void EmitVoid(EmitContext& ctx) {
NotImplemented();
}
void EmitVoid(EmitContext&) {}
void EmitBranch(EmitContext& ctx) {
NotImplemented();
@ -636,84 +634,4 @@ void EmitImageAtomicExchange32(EmitContext& ctx, IR::Inst& inst, const IR::Value
NotImplemented();
}
void EmitLaneId(EmitContext& ctx) {
NotImplemented();
}
void EmitVoteAll(EmitContext& ctx, ScalarS32 pred) {
NotImplemented();
}
void EmitVoteAny(EmitContext& ctx, ScalarS32 pred) {
NotImplemented();
}
void EmitVoteEqual(EmitContext& ctx, ScalarS32 pred) {
NotImplemented();
}
void EmitSubgroupBallot(EmitContext& ctx, ScalarS32 pred) {
NotImplemented();
}
void EmitSubgroupEqMask(EmitContext& ctx) {
NotImplemented();
}
void EmitSubgroupLtMask(EmitContext& ctx) {
NotImplemented();
}
void EmitSubgroupLeMask(EmitContext& ctx) {
NotImplemented();
}
void EmitSubgroupGtMask(EmitContext& ctx) {
NotImplemented();
}
void EmitSubgroupGeMask(EmitContext& ctx) {
NotImplemented();
}
void EmitShuffleIndex(EmitContext& ctx, IR::Inst& inst, ScalarU32 value, ScalarU32 index,
ScalarU32 clamp, ScalarU32 segmentation_mask) {
NotImplemented();
}
void EmitShuffleUp(EmitContext& ctx, IR::Inst& inst, ScalarU32 value, ScalarU32 index,
ScalarU32 clamp, ScalarU32 segmentation_mask) {
NotImplemented();
}
void EmitShuffleDown(EmitContext& ctx, IR::Inst& inst, ScalarU32 value, ScalarU32 index,
ScalarU32 clamp, ScalarU32 segmentation_mask) {
NotImplemented();
}
void EmitShuffleButterfly(EmitContext& ctx, IR::Inst& inst, ScalarU32 value, ScalarU32 index,
ScalarU32 clamp, ScalarU32 segmentation_mask) {
NotImplemented();
}
void EmitFSwizzleAdd(EmitContext& ctx, ScalarF32 op_a, ScalarF32 op_b, ScalarU32 swizzle) {
NotImplemented();
}
void EmitDPdxFine(EmitContext& ctx, ScalarF32 op_a) {
NotImplemented();
}
void EmitDPdyFine(EmitContext& ctx, ScalarF32 op_a) {
NotImplemented();
}
void EmitDPdxCoarse(EmitContext& ctx, ScalarF32 op_a) {
NotImplemented();
}
void EmitDPdyCoarse(EmitContext& ctx, ScalarF32 op_a) {
NotImplemented();
}
} // namespace Shader::Backend::GLASM

118
src/shader_recompiler/backend/glasm/emit_glasm_warp.cpp
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@ -0,0 +1,118 @@
// Copyright 2021 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include "shader_recompiler/backend/glasm/emit_context.h"
#include "shader_recompiler/backend/glasm/emit_glasm_instructions.h"
#include "shader_recompiler/frontend/ir/value.h"
namespace Shader::Backend::GLASM {
void EmitLaneId(EmitContext& ctx, IR::Inst& inst) {
ctx.Add("MOV.S {}.x,{}.threadid;", inst, ctx.stage_name);
}
void EmitVoteAll(EmitContext& ctx, IR::Inst& inst, ScalarS32 pred) {
ctx.Add("TGALL.S {}.x,{};", inst, pred);
}
void EmitVoteAny(EmitContext& ctx, IR::Inst& inst, ScalarS32 pred) {
ctx.Add("TGANY.S {}.x,{};", inst, pred);
}
void EmitVoteEqual(EmitContext& ctx, IR::Inst& inst, ScalarS32 pred) {
ctx.Add("TGEQ.S {}.x,{};", inst, pred);
}
void EmitSubgroupBallot(EmitContext& ctx, IR::Inst& inst, ScalarS32 pred) {
ctx.Add("TGBALLOT {}.x,{};", inst, pred);
}
void EmitSubgroupEqMask(EmitContext& ctx, IR::Inst& inst) {
ctx.Add("MOV.U {},{}.threadeqmask;", inst, ctx.stage_name);
}
void EmitSubgroupLtMask(EmitContext& ctx, IR::Inst& inst) {
ctx.Add("MOV.U {},{}.threadltmask;", inst, ctx.stage_name);
}
void EmitSubgroupLeMask(EmitContext& ctx, IR::Inst& inst) {
ctx.Add("MOV.U {},{}.threadlemask;", inst, ctx.stage_name);
}
void EmitSubgroupGtMask(EmitContext& ctx, IR::Inst& inst) {
ctx.Add("MOV.U {},{}.threadgtmask;", inst, ctx.stage_name);
}
void EmitSubgroupGeMask(EmitContext& ctx, IR::Inst& inst) {
ctx.Add("MOV.U {},{}.threadgemask;", inst, ctx.stage_name);
}
static void Shuffle(EmitContext& ctx, IR::Inst& inst, ScalarU32 value, ScalarU32 index,
const IR::Value& clamp, const IR::Value& segmentation_mask,
std::string_view op) {
std::string mask;
if (clamp.IsImmediate() && segmentation_mask.IsImmediate()) {
mask = fmt::to_string(clamp.U32() | (segmentation_mask.U32() << 8));
} else {
mask = "RC";
ctx.Add("BFI.U RC.x,{{5,8,0,0}},{},{};",
ScalarU32{ctx.reg_alloc.Consume(segmentation_mask)},
ScalarU32{ctx.reg_alloc.Consume(clamp)});
}
const Register value_ret{ctx.reg_alloc.Define(inst)};
IR::Inst* const in_bounds{inst.GetAssociatedPseudoOperation(IR::Opcode::GetInBoundsFromOp)};
if (in_bounds) {
const Register bounds_ret{ctx.reg_alloc.Define(*in_bounds)};
ctx.Add("SHF{}.U {},{},{},{};"
"MOV.U {}.x,{}.y;",
op, bounds_ret, value, index, mask, value_ret, bounds_ret);
in_bounds->Invalidate();
} else {
ctx.Add("SHF{}.U {},{},{},{};"
"MOV.U {}.x,{}.y;",
op, value_ret, value, index, mask, value_ret, value_ret);
}
}
void EmitShuffleIndex(EmitContext& ctx, IR::Inst& inst, ScalarU32 value, ScalarU32 index,
const IR::Value& clamp, const IR::Value& segmentation_mask) {
Shuffle(ctx, inst, value, index, clamp, segmentation_mask, "IDX");
}
void EmitShuffleUp(EmitContext& ctx, IR::Inst& inst, ScalarU32 value, ScalarU32 index,
const IR::Value& clamp, const IR::Value& segmentation_mask) {
Shuffle(ctx, inst, value, index, clamp, segmentation_mask, "UP");
}
void EmitShuffleDown(EmitContext& ctx, IR::Inst& inst, ScalarU32 value, ScalarU32 index,
const IR::Value& clamp, const IR::Value& segmentation_mask) {
Shuffle(ctx, inst, value, index, clamp, segmentation_mask, "DOWN");
}
void EmitShuffleButterfly(EmitContext& ctx, IR::Inst& inst, ScalarU32 value, ScalarU32 index,
const IR::Value& clamp, const IR::Value& segmentation_mask) {
Shuffle(ctx, inst, value, index, clamp, segmentation_mask, "XOR");
}
void EmitFSwizzleAdd(EmitContext&, ScalarF32, ScalarF32, ScalarU32) {
throw NotImplementedException("GLASM instruction");
}
void EmitDPdxFine(EmitContext&, ScalarF32) {
throw NotImplementedException("GLASM instruction");
}
void EmitDPdyFine(EmitContext&, ScalarF32) {
throw NotImplementedException("GLASM instruction");
}
void EmitDPdxCoarse(EmitContext&, ScalarF32) {
throw NotImplementedException("GLASM instruction");
}
void EmitDPdyCoarse(EmitContext&, ScalarF32) {
throw NotImplementedException("GLASM instruction");
}
} // namespace Shader::Backend::GLASM

2
src/shader_recompiler/backend/spirv/emit_context.cpp
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@ -1168,7 +1168,7 @@ void EmitContext::DefineInputs(const Info& info) {
subgroup_mask_gt = DefineInput(*this, U32[4], false, spv::BuiltIn::SubgroupGtMaskKHR);
subgroup_mask_ge = DefineInput(*this, U32[4], false, spv::BuiltIn::SubgroupGeMaskKHR);
}
if (info.uses_subgroup_invocation_id ||
if (info.uses_subgroup_invocation_id || info.uses_subgroup_shuffles ||
(profile.warp_size_potentially_larger_than_guest &&
(info.uses_subgroup_vote || info.uses_subgroup_mask))) {
subgroup_local_invocation_id =

4
src/shader_recompiler/backend/spirv/emit_spirv.cpp
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@ -318,7 +318,9 @@ void SetupCapabilities(const Profile& profile, const Info& info, EmitContext& ct
ctx.AddExtension("SPV_KHR_shader_draw_parameters");
ctx.AddCapability(spv::Capability::DrawParameters);
}
if ((info.uses_subgroup_vote || info.uses_subgroup_invocation_id) && profile.support_vote) {
if ((info.uses_subgroup_vote || info.uses_subgroup_invocation_id ||
info.uses_subgroup_shuffles) &&
profile.support_vote) {
ctx.AddExtension("SPV_KHR_shader_ballot");
ctx.AddCapability(spv::Capability::SubgroupBallotKHR);
if (!profile.warp_size_potentially_larger_than_guest) {

4
src/shader_recompiler/ir_opt/collect_shader_info_pass.cpp
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@ -504,11 +504,13 @@ void VisitUsages(Info& info, IR::Inst& inst) {
info.uses_is_helper_invocation = true;
break;
case IR::Opcode::LaneId:
info.uses_subgroup_invocation_id = true;
break;
case IR::Opcode::ShuffleIndex:
case IR::Opcode::ShuffleUp:
case IR::Opcode::ShuffleDown:
case IR::Opcode::ShuffleButterfly:
info.uses_subgroup_invocation_id = true;
info.uses_subgroup_shuffles = true;
break;
case IR::Opcode::GetCbufU8:
case IR::Opcode::GetCbufS8:

1
src/shader_recompiler/shader_info.h
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@ -116,6 +116,7 @@ struct Info {
bool uses_sample_id{};
bool uses_is_helper_invocation{};
bool uses_subgroup_invocation_id{};
bool uses_subgroup_shuffles{};
std::array<bool, 30> uses_patches{};
std::array<InputVarying, 32> input_generics{};