From 64337f004d9249c4408fec75bd1bbcc0f2a1408d Mon Sep 17 00:00:00 2001
From: ameerj <52414509+ameerj@users.noreply.github.com>
Date: Thu, 20 May 2021 23:38:38 -0400
Subject: glsl: Fix "reg" allocing

based on glasm with some tweaks
---
 .../backend/glsl/emit_glsl_bitwise_conversion.cpp  | 28 ++++++++++++++++++++++
 1 file changed, 28 insertions(+)

(limited to 'src/shader_recompiler/backend/glsl/emit_glsl_bitwise_conversion.cpp')

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 e69de29bb..7c654e4e7 100644
--- a/src/shader_recompiler/backend/glsl/emit_glsl_bitwise_conversion.cpp
+++ b/src/shader_recompiler/backend/glsl/emit_glsl_bitwise_conversion.cpp
@@ -0,0 +1,28 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include <string_view>
+
+#include "shader_recompiler/backend/glsl/emit_context.h"
+#include "shader_recompiler/backend/glsl/emit_glsl_instructions.h"
+#include "shader_recompiler/frontend/ir/value.h"
+#include "shader_recompiler/profile.h"
+
+namespace Shader::Backend::GLSL {
+namespace {
+static void Alias(IR::Inst& inst, const IR::Value& value) {
+    if (value.IsImmediate()) {
+        return;
+    }
+    IR::Inst& value_inst{RegAlloc::AliasInst(*value.Inst())};
+    value_inst.DestructiveAddUsage(inst.UseCount());
+    value_inst.DestructiveRemoveUsage();
+    inst.SetDefinition(value_inst.Definition<Id>());
+}
+} // namespace
+
+void EmitIdentity(EmitContext&, IR::Inst* inst, const IR::Value& value) {
+    Alias(*inst, value);
+}
+} // namespace Shader::Backend::GLSL
-- 
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