From d54d7de40e7295827b0e4e4026441b53d3fc9569 Mon Sep 17 00:00:00 2001 From: ReinUsesLisp Date: Fri, 14 May 2021 00:40:54 -0300 Subject: glasm: Rework control flow introducing a syntax list This commit regresses VertexA shaders, their transformation pass has to be adapted to the new control flow. --- src/shader_recompiler/backend/glasm/emit_glasm.cpp | 41 ++++++++++++++++++---- .../backend/glasm/emit_glasm_instructions.h | 7 +--- .../backend/glasm/emit_glasm_integer.cpp | 9 +++-- .../backend/glasm/emit_glasm_not_implemented.cpp | 24 +------------ 4 files changed, 42 insertions(+), 39 deletions(-) (limited to 'src/shader_recompiler/backend/glasm') diff --git a/src/shader_recompiler/backend/glasm/emit_glasm.cpp b/src/shader_recompiler/backend/glasm/emit_glasm.cpp index 056d8cbf8..51ca83d18 100644 --- a/src/shader_recompiler/backend/glasm/emit_glasm.cpp +++ b/src/shader_recompiler/backend/glasm/emit_glasm.cpp @@ -117,8 +117,6 @@ auto Arg(EmitContext& ctx, const IR::Value& arg) { return Identity{arg}; } else if constexpr (std::is_same_v) { return Identity{arg.U32()}; - } else if constexpr (std::is_same_v) { - return Identity{arg.Label()}; } else if constexpr (std::is_same_v) { return Identity{arg.Attribute()}; } else if constexpr (std::is_same_v) { @@ -177,6 +175,39 @@ void EmitInst(EmitContext& ctx, IR::Inst* inst) { throw LogicError("Invalid opcode {}", inst->GetOpcode()); } +void EmitCode(EmitContext& ctx, const IR::Program& program) { + const auto eval{ + [&](const IR::U1& cond) { return ScalarS32{ctx.reg_alloc.Consume(IR::Value{cond})}; }}; + for (const IR::AbstractSyntaxNode& node : program.syntax_list) { + switch (node.type) { + case IR::AbstractSyntaxNode::Type::Block: + for (IR::Inst& inst : node.block->Instructions()) { + EmitInst(ctx, &inst); + } + break; + case IR::AbstractSyntaxNode::Type::If: + ctx.Add("MOV.S.CC RC,{};IF NE.x;", eval(node.if_node.cond)); + break; + case IR::AbstractSyntaxNode::Type::EndIf: + ctx.Add("ENDIF;"); + break; + case IR::AbstractSyntaxNode::Type::Loop: + ctx.Add("REP;"); + break; + case IR::AbstractSyntaxNode::Type::Repeat: + ctx.Add("MOV.S.CC RC,{};BRK NE.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)); + break; + case IR::AbstractSyntaxNode::Type::Return: + case IR::AbstractSyntaxNode::Type::Unreachable: + ctx.Add("RET;"); + break; + } + } +} + void SetupOptions(std::string& header, Info info) { if (info.uses_int64_bit_atomics) { header += "OPTION NV_shader_atomic_int64;"; @@ -201,11 +232,7 @@ void SetupOptions(std::string& header, Info info) { std::string EmitGLASM(const Profile&, IR::Program& program, Bindings&) { EmitContext ctx{program}; - for (IR::Block* const block : program.blocks) { - for (IR::Inst& inst : block->Instructions()) { - EmitInst(ctx, &inst); - } - } + EmitCode(ctx, program); std::string header = "!!NVcp5.0\n" "OPTION NV_internal;"; SetupOptions(header, program.info); diff --git a/src/shader_recompiler/backend/glasm/emit_glasm_instructions.h b/src/shader_recompiler/backend/glasm/emit_glasm_instructions.h index 8202354fe..0f7f16e6e 100644 --- a/src/shader_recompiler/backend/glasm/emit_glasm_instructions.h +++ b/src/shader_recompiler/backend/glasm/emit_glasm_instructions.h @@ -22,13 +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 EmitBranch(EmitContext& ctx); -void EmitBranchConditional(EmitContext& ctx); -void EmitLoopMerge(EmitContext& ctx); -void EmitSelectionMerge(EmitContext& ctx); -void EmitReturn(EmitContext& ctx); +void EmitBranchConditionRef(EmitContext&); void EmitJoin(EmitContext& ctx); -void EmitUnreachable(EmitContext& ctx); void EmitDemoteToHelperInvocation(EmitContext& ctx); void EmitBarrier(EmitContext& ctx); void EmitWorkgroupMemoryBarrier(EmitContext& ctx); diff --git a/src/shader_recompiler/backend/glasm/emit_glasm_integer.cpp b/src/shader_recompiler/backend/glasm/emit_glasm_integer.cpp index 15fd23356..adcc0404b 100644 --- a/src/shader_recompiler/backend/glasm/emit_glasm_integer.cpp +++ b/src/shader_recompiler/backend/glasm/emit_glasm_integer.cpp @@ -91,7 +91,8 @@ void EmitBitFieldInsert(EmitContext& ctx, IR::Inst& inst, ScalarS32 base, Scalar if (count.type != Type::Register && offset.type != Type::Register) { ctx.Add("BFI.S {},{{{},{},0,0}},{},{};", ret, count, offset, insert, base); } else { - ctx.Add("MOV.S RC.x,{};MOV.U RC.y,{};" + ctx.Add("MOV.S RC.x,{};" + "MOV.S RC.y,{};" "BFI.S {},RC,{},{};", count, offset, ret, insert, base); } @@ -103,7 +104,8 @@ void EmitBitFieldSExtract(EmitContext& ctx, IR::Inst& inst, ScalarS32 base, Scal if (count.type != Type::Register && offset.type != Type::Register) { ctx.Add("BFE.S {},{{{},{},0,0}},{};", ret, count, offset, base); } else { - ctx.Add("MOV.S RC.x,{};MOV.U RC.y,{};" + ctx.Add("MOV.S RC.x,{};" + "MOV.S RC.y,{};" "BFE.S {},RC,{};", count, offset, ret, base); } @@ -115,7 +117,8 @@ void EmitBitFieldUExtract(EmitContext& ctx, IR::Inst& inst, ScalarU32 base, Scal if (count.type != Type::Register && offset.type != Type::Register) { ctx.Add("BFE.U {},{{{},{},0,0}},{};", ret, count, offset, base); } else { - ctx.Add("MOV.U RC.x,{};MOV.U RC.y,{};" + ctx.Add("MOV.U RC.x,{};" + "MOV.U RC.y,{};" "BFE.U {},RC,{};", count, offset, ret, base); } 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 b40d09f8c..f37ad5587 100644 --- a/src/shader_recompiler/backend/glasm/emit_glasm_not_implemented.cpp +++ b/src/shader_recompiler/backend/glasm/emit_glasm_not_implemented.cpp @@ -23,34 +23,12 @@ void EmitPhi(EmitContext& ctx, IR::Inst& inst) { void EmitVoid(EmitContext&) {} -void EmitBranch(EmitContext& ctx) { - NotImplemented(); -} - -void EmitBranchConditional(EmitContext& ctx) { - NotImplemented(); -} - -void EmitLoopMerge(EmitContext& ctx) { - NotImplemented(); -} - -void EmitSelectionMerge(EmitContext& ctx) { - NotImplemented(); -} - -void EmitReturn(EmitContext& ctx) { - ctx.Add("RET;"); -} +void EmitBranchConditionRef(EmitContext&) {} void EmitJoin(EmitContext& ctx) { NotImplemented(); } -void EmitUnreachable(EmitContext& ctx) { - NotImplemented(); -} - void EmitDemoteToHelperInvocation(EmitContext& ctx) { NotImplemented(); } -- cgit v1.2.3