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@ -2,6 +2,7 @@
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// Licensed under GPLv2 or any later version
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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// Refer to the license.txt file included.
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#include <ranges>
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#include <string>
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#include <string>
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#include <tuple>
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#include <tuple>
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@ -9,6 +10,7 @@
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#include "shader_recompiler/backend/glasm/emit_context.h"
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#include "shader_recompiler/backend/glasm/emit_context.h"
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#include "shader_recompiler/backend/glasm/emit_glasm.h"
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#include "shader_recompiler/backend/glasm/emit_glasm.h"
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#include "shader_recompiler/backend/glasm/emit_glasm_instructions.h"
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#include "shader_recompiler/backend/glasm/emit_glasm_instructions.h"
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#include "shader_recompiler/frontend/ir/ir_emitter.h"
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#include "shader_recompiler/frontend/ir/program.h"
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#include "shader_recompiler/frontend/ir/program.h"
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#include "shader_recompiler/profile.h"
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#include "shader_recompiler/profile.h"
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@ -175,6 +177,34 @@ void EmitInst(EmitContext& ctx, IR::Inst* inst) {
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throw LogicError("Invalid opcode {}", inst->GetOpcode());
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throw LogicError("Invalid opcode {}", inst->GetOpcode());
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}
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}
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void Precolor(EmitContext& ctx, const IR::Program& program) {
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for (IR::Block* const block : program.blocks) {
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for (IR::Inst& phi : block->Instructions() | std::views::take_while(IR::IsPhi)) {
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switch (phi.Arg(0).Type()) {
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case IR::Type::U1:
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case IR::Type::U32:
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case IR::Type::F32:
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ctx.reg_alloc.Define(phi);
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break;
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case IR::Type::U64:
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case IR::Type::F64:
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ctx.reg_alloc.LongDefine(phi);
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break;
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default:
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throw NotImplementedException("Phi node type {}", phi.Type());
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}
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const size_t num_args{phi.NumArgs()};
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for (size_t i = 0; i < num_args; ++i) {
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IR::IREmitter{*phi.PhiBlock(i)}.PhiMove(phi, phi.Arg(i));
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}
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// Add reference to the phi node on the phi predecessor to avoid overwritting it
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for (size_t i = 0; i < num_args; ++i) {
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IR::IREmitter{*phi.PhiBlock(i)}.DummyReference(IR::Value{&phi});
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}
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}
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}
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}
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void EmitCode(EmitContext& ctx, const IR::Program& program) {
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void EmitCode(EmitContext& ctx, const IR::Program& program) {
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const auto eval{
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const auto eval{
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[&](const IR::U1& cond) { return ScalarS32{ctx.reg_alloc.Consume(IR::Value{cond})}; }};
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[&](const IR::U1& cond) { return ScalarS32{ctx.reg_alloc.Consume(IR::Value{cond})}; }};
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@ -186,7 +216,9 @@ void EmitCode(EmitContext& ctx, const IR::Program& program) {
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}
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}
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break;
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break;
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case IR::AbstractSyntaxNode::Type::If:
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case IR::AbstractSyntaxNode::Type::If:
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ctx.Add("MOV.S.CC RC,{};IF NE.x;", eval(node.if_node.cond));
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ctx.Add("MOV.S.CC RC,{};"
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"IF NE.x;",
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eval(node.if_node.cond));
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break;
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break;
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case IR::AbstractSyntaxNode::Type::EndIf:
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case IR::AbstractSyntaxNode::Type::EndIf:
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ctx.Add("ENDIF;");
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ctx.Add("ENDIF;");
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@ -195,10 +227,30 @@ void EmitCode(EmitContext& ctx, const IR::Program& program) {
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ctx.Add("REP;");
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ctx.Add("REP;");
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break;
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break;
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case IR::AbstractSyntaxNode::Type::Repeat:
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case IR::AbstractSyntaxNode::Type::Repeat:
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ctx.Add("MOV.S.CC RC,{};BRK NE.x;ENDREP;", eval(node.repeat.cond));
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if (node.repeat.cond.IsImmediate()) {
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if (node.repeat.cond.U1()) {
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ctx.Add("ENDREP;");
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} else {
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ctx.Add("BRK;"
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"ENDREP;");
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}
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} else {
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ctx.Add("MOV.S.CC RC,{};"
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"BRK (EQ.x);"
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"ENDREP;",
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eval(node.repeat.cond));
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}
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break;
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break;
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case IR::AbstractSyntaxNode::Type::Break:
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case IR::AbstractSyntaxNode::Type::Break:
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ctx.Add("MOV.S.CC RC,{};BRK NE.x;", eval(node.repeat.cond));
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if (node.break_node.cond.IsImmediate()) {
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if (node.break_node.cond.U1()) {
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ctx.Add("BRK;");
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}
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} else {
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ctx.Add("MOV.S.CC RC,{};"
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"BRK (NE.x);",
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eval(node.break_node.cond));
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}
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break;
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break;
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case IR::AbstractSyntaxNode::Type::Return:
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case IR::AbstractSyntaxNode::Type::Return:
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case IR::AbstractSyntaxNode::Type::Unreachable:
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case IR::AbstractSyntaxNode::Type::Unreachable:
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@ -233,6 +285,7 @@ void SetupOptions(std::string& header, Info info) {
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std::string EmitGLASM(const Profile&, IR::Program& program, Bindings&) {
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std::string EmitGLASM(const Profile&, IR::Program& program, Bindings&) {
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EmitContext ctx{program};
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EmitContext ctx{program};
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Precolor(ctx, program);
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EmitCode(ctx, program);
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EmitCode(ctx, program);
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std::string header = "!!NVcp5.0\n"
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std::string header = "!!NVcp5.0\n"
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"OPTION NV_internal;";
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"OPTION NV_internal;";
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