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| author | ameerj <52414509+ameerj@users.noreply.github.com> | 2021-05-30 19:13:22 -0400 |
|---|---|---|
| committer | ameerj <52414509+ameerj@users.noreply.github.com> | 2021-07-22 21:51:37 -0400 |
| commit | 9f3ffb996b0d02ca64b492d22ff158e8f3659257 (patch) | |
| tree | 48993eaf320484cf042071a81a1a6b1dcc829eb9 /src/shader_recompiler/backend/glsl/emit_glsl_bitwise_conversion.cpp | |
| parent | 1269a0cf8b3844c1a9bb06c843a7698b0a9643d5 (diff) | |
glsl: Rework var alloc to not assign unused results
Diffstat (limited to 'src/shader_recompiler/backend/glsl/emit_glsl_bitwise_conversion.cpp')
| -rw-r--r-- | src/shader_recompiler/backend/glsl/emit_glsl_bitwise_conversion.cpp | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/src/shader_recompiler/backend/glsl/emit_glsl_bitwise_conversion.cpp b/src/shader_recompiler/backend/glsl/emit_glsl_bitwise_conversion.cpp index 2b08aa593..9d844b831 100644 --- a/src/shader_recompiler/backend/glsl/emit_glsl_bitwise_conversion.cpp +++ b/src/shader_recompiler/backend/glsl/emit_glsl_bitwise_conversion.cpp @@ -26,7 +26,13 @@ void EmitIdentity(EmitContext&, IR::Inst& inst, const IR::Value& value) { } void EmitConditionRef(EmitContext& ctx, IR::Inst& inst, const IR::Value& value) { - ctx.AddU1("{}={};", inst, ctx.var_alloc.Consume(value)); + // Fake one usage to get a real variable out of the condition + inst.DestructiveAddUsage(1); + const auto ret{ctx.var_alloc.Define(inst, GlslVarType::U1)}; + const auto input{ctx.var_alloc.Consume(value)}; + if (ret != input) { + ctx.Add("{}={};", ret, input); + } } void EmitBitCastU16F16([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst) { |