diff options
| author | ameerj <52414509+ameerj@users.noreply.github.com> | 2021-05-19 00:29:07 -0400 |
|---|---|---|
| committer | ameerj <52414509+ameerj@users.noreply.github.com> | 2021-07-22 21:51:32 -0400 |
| commit | 3777592ada560e2943a066f7d2d62fd468dbf62c (patch) | |
| tree | c5205b150d4d2f566f3e1854cd763f12ec599d67 /src/shader_recompiler/backend/glasm/emit_glasm_integer.cpp | |
| parent | 98ed8ff103a975be93dbbb89d554fbea355aacde (diff) | |
glasm: Implement IADD.CC
Diffstat (limited to 'src/shader_recompiler/backend/glasm/emit_glasm_integer.cpp')
| -rw-r--r-- | src/shader_recompiler/backend/glasm/emit_glasm_integer.cpp | 27 |
1 files changed, 26 insertions, 1 deletions
diff --git a/src/shader_recompiler/backend/glasm/emit_glasm_integer.cpp b/src/shader_recompiler/backend/glasm/emit_glasm_integer.cpp index ba69c7a1be..ff353df8d7 100644 --- a/src/shader_recompiler/backend/glasm/emit_glasm_integer.cpp +++ b/src/shader_recompiler/backend/glasm/emit_glasm_integer.cpp @@ -9,7 +9,32 @@ namespace Shader::Backend::GLASM { void EmitIAdd32(EmitContext& ctx, IR::Inst& inst, ScalarS32 a, ScalarS32 b) { - ctx.Add("ADD.S {}.x,{},{};", inst, a, b); + const bool cc{inst.HasAssociatedPseudoOperation()}; + const std::string_view cc_mod{cc ? ".CC" : ""}; + if (cc) { + ctx.reg_alloc.InvalidateConditionCodes(); + } + const auto ret{ctx.reg_alloc.Define(inst)}; + ctx.Add("ADD.S{} {}.x,{},{};", cc_mod, ret, a, b); + if (!cc) { + return; + } + static constexpr std::array<std::string_view, 4> masks{"EQ", "SF", "CF", "OF"}; + const std::array flags{ + inst.GetAssociatedPseudoOperation(IR::Opcode::GetZeroFromOp), + inst.GetAssociatedPseudoOperation(IR::Opcode::GetSignFromOp), + inst.GetAssociatedPseudoOperation(IR::Opcode::GetCarryFromOp), + inst.GetAssociatedPseudoOperation(IR::Opcode::GetOverflowFromOp), + }; + for (size_t i = 0; i < flags.size(); ++i) { + if (flags[i]) { + const auto flag_ret{ctx.reg_alloc.Define(*flags[i])}; + ctx.Add("MOV.S {},0;" + "MOV.S {}({}.x),-1;", + flag_ret, flag_ret, masks[i]); + flags[i]->Invalidate(); + } + } } void EmitIAdd64([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] Register a, |