diff options
Diffstat (limited to 'src/shader_recompiler/backend')
5 files changed, 88 insertions, 10 deletions
diff --git a/src/shader_recompiler/backend/glasm/emit_glasm.cpp b/src/shader_recompiler/backend/glasm/emit_glasm.cpp index fa48ba25c..775dd9e7e 100644 --- a/src/shader_recompiler/backend/glasm/emit_glasm.cpp +++ b/src/shader_recompiler/backend/glasm/emit_glasm.cpp @@ -2,6 +2,7 @@ // Licensed under GPLv2 or any later version // Refer to the license.txt file included. +#include <ranges> #include <string> #include <tuple> @@ -9,6 +10,7 @@ #include "shader_recompiler/backend/glasm/emit_context.h" #include "shader_recompiler/backend/glasm/emit_glasm.h" #include "shader_recompiler/backend/glasm/emit_glasm_instructions.h" +#include "shader_recompiler/frontend/ir/ir_emitter.h" #include "shader_recompiler/frontend/ir/program.h" #include "shader_recompiler/profile.h" @@ -175,6 +177,34 @@ void EmitInst(EmitContext& ctx, IR::Inst* inst) { throw LogicError("Invalid opcode {}", inst->GetOpcode()); } +void Precolor(EmitContext& ctx, const IR::Program& program) { + for (IR::Block* const block : program.blocks) { + for (IR::Inst& phi : block->Instructions() | std::views::take_while(IR::IsPhi)) { + switch (phi.Arg(0).Type()) { + case IR::Type::U1: + case IR::Type::U32: + case IR::Type::F32: + ctx.reg_alloc.Define(phi); + break; + case IR::Type::U64: + case IR::Type::F64: + ctx.reg_alloc.LongDefine(phi); + break; + default: + throw NotImplementedException("Phi node type {}", phi.Type()); + } + const size_t num_args{phi.NumArgs()}; + for (size_t i = 0; i < num_args; ++i) { + IR::IREmitter{*phi.PhiBlock(i)}.PhiMove(phi, phi.Arg(i)); + } + // Add reference to the phi node on the phi predecessor to avoid overwritting it + for (size_t i = 0; i < num_args; ++i) { + IR::IREmitter{*phi.PhiBlock(i)}.DummyReference(IR::Value{&phi}); + } + } + } +} + void EmitCode(EmitContext& ctx, const IR::Program& program) { const auto eval{ [&](const IR::U1& cond) { return ScalarS32{ctx.reg_alloc.Consume(IR::Value{cond})}; }}; @@ -186,7 +216,9 @@ void EmitCode(EmitContext& ctx, const IR::Program& program) { } break; case IR::AbstractSyntaxNode::Type::If: - ctx.Add("MOV.S.CC RC,{};IF NE.x;", eval(node.if_node.cond)); + ctx.Add("MOV.S.CC RC,{};" + "IF NE.x;", + eval(node.if_node.cond)); break; case IR::AbstractSyntaxNode::Type::EndIf: ctx.Add("ENDIF;"); @@ -195,10 +227,30 @@ void EmitCode(EmitContext& ctx, const IR::Program& program) { ctx.Add("REP;"); break; case IR::AbstractSyntaxNode::Type::Repeat: - ctx.Add("MOV.S.CC RC,{};BRK NE.x;ENDREP;", eval(node.repeat.cond)); + if (node.repeat.cond.IsImmediate()) { + if (node.repeat.cond.U1()) { + ctx.Add("ENDREP;"); + } else { + ctx.Add("BRK;" + "ENDREP;"); + } + } else { + ctx.Add("MOV.S.CC RC,{};" + "BRK (EQ.x);" + "ENDREP;", + eval(node.repeat.cond)); + } break; case IR::AbstractSyntaxNode::Type::Break: - ctx.Add("MOV.S.CC RC,{};BRK NE.x;", eval(node.repeat.cond)); + if (node.break_node.cond.IsImmediate()) { + if (node.break_node.cond.U1()) { + ctx.Add("BRK;"); + } + } else { + ctx.Add("MOV.S.CC RC,{};" + "BRK (NE.x);", + eval(node.break_node.cond)); + } break; case IR::AbstractSyntaxNode::Type::Return: case IR::AbstractSyntaxNode::Type::Unreachable: @@ -233,6 +285,7 @@ void SetupOptions(std::string& header, Info info) { std::string EmitGLASM(const Profile&, IR::Program& program, Bindings&) { EmitContext ctx{program}; + Precolor(ctx, program); EmitCode(ctx, program); std::string header = "!!NVcp5.0\n" "OPTION NV_internal;"; diff --git a/src/shader_recompiler/backend/glasm/emit_glasm_instructions.h b/src/shader_recompiler/backend/glasm/emit_glasm_instructions.h index 0f7f16e6e..a74e422d6 100644 --- a/src/shader_recompiler/backend/glasm/emit_glasm_instructions.h +++ b/src/shader_recompiler/backend/glasm/emit_glasm_instructions.h @@ -22,7 +22,8 @@ class EmitContext; void EmitPhi(EmitContext& ctx, IR::Inst& inst); void EmitVoid(EmitContext& ctx); void EmitIdentity(EmitContext& ctx, IR::Inst& inst, const IR::Value& value); -void EmitBranchConditionRef(EmitContext&); +void EmitDummyReference(EmitContext&); +void EmitPhiMove(EmitContext& ctx, const IR::Value& phi, const IR::Value& value); void EmitJoin(EmitContext& ctx); void EmitDemoteToHelperInvocation(EmitContext& ctx); void EmitBarrier(EmitContext& ctx); diff --git a/src/shader_recompiler/backend/glasm/emit_glasm_not_implemented.cpp b/src/shader_recompiler/backend/glasm/emit_glasm_not_implemented.cpp index f37ad5587..969b91a81 100644 --- a/src/shader_recompiler/backend/glasm/emit_glasm_not_implemented.cpp +++ b/src/shader_recompiler/backend/glasm/emit_glasm_not_implemented.cpp @@ -17,13 +17,32 @@ namespace Shader::Backend::GLASM { #define NotImplemented() throw NotImplementedException("GLASM instruction {}", __LINE__) -void EmitPhi(EmitContext& ctx, IR::Inst& inst) { - NotImplemented(); -} +void EmitPhi(EmitContext&, IR::Inst&) {} void EmitVoid(EmitContext&) {} -void EmitBranchConditionRef(EmitContext&) {} +void EmitDummyReference(EmitContext&) {} + +void EmitPhiMove(EmitContext& ctx, const IR::Value& phi, const IR::Value& value) { + if (phi == value) { + return; + } + const Register phi_reg{ctx.reg_alloc.Consume(phi)}; + const Value eval_value{ctx.reg_alloc.Consume(value)}; + switch (phi.InstRecursive()->Arg(0).Type()) { + case IR::Type::U1: + case IR::Type::U32: + case IR::Type::F32: + ctx.Add("MOV.S {}.x,{};", phi_reg, ScalarS32{eval_value}); + break; + case IR::Type::U64: + case IR::Type::F64: + ctx.Add("MOV.U64 {}.x,{};", phi_reg, ScalarRegister{eval_value}); + break; + default: + throw NotImplementedException("Phi node type {}", phi.Type()); + } +} void EmitJoin(EmitContext& ctx) { NotImplemented(); diff --git a/src/shader_recompiler/backend/spirv/emit_spirv.cpp b/src/shader_recompiler/backend/spirv/emit_spirv.cpp index c22edfec2..7bf8c78de 100644 --- a/src/shader_recompiler/backend/spirv/emit_spirv.cpp +++ b/src/shader_recompiler/backend/spirv/emit_spirv.cpp @@ -468,7 +468,11 @@ Id EmitIdentity(EmitContext& ctx, const IR::Value& value) { return id; } -void EmitBranchConditionRef(EmitContext&) {} +void EmitDummyReference(EmitContext&) {} + +void EmitPhiMove(EmitContext&) { + throw LogicError("Unreachable instruction"); +} void EmitGetZeroFromOp(EmitContext&) { throw LogicError("Unreachable instruction"); diff --git a/src/shader_recompiler/backend/spirv/emit_spirv_instructions.h b/src/shader_recompiler/backend/spirv/emit_spirv_instructions.h index 2f4f6e59e..0a2b31772 100644 --- a/src/shader_recompiler/backend/spirv/emit_spirv_instructions.h +++ b/src/shader_recompiler/backend/spirv/emit_spirv_instructions.h @@ -23,7 +23,8 @@ class EmitContext; Id EmitPhi(EmitContext& ctx, IR::Inst* inst); void EmitVoid(EmitContext& ctx); Id EmitIdentity(EmitContext& ctx, const IR::Value& value); -void EmitBranchConditionRef(EmitContext&); +void EmitDummyReference(EmitContext&); +void EmitPhiMove(EmitContext&); void EmitJoin(EmitContext& ctx); void EmitDemoteToHelperInvocation(EmitContext& ctx); void EmitBarrier(EmitContext& ctx); |