From 9f3ffb996b0d02ca64b492d22ff158e8f3659257 Mon Sep 17 00:00:00 2001
From: ameerj <52414509+ameerj@users.noreply.github.com>
Date: Sun, 30 May 2021 19:13:22 -0400
Subject: glsl: Rework var alloc to not assign unused results

---
 src/shader_recompiler/backend/glsl/emit_context.h | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

(limited to 'src/shader_recompiler/backend/glsl/emit_context.h')

diff --git a/src/shader_recompiler/backend/glsl/emit_context.h b/src/shader_recompiler/backend/glsl/emit_context.h
index 2f1062954..423fc6104 100644
--- a/src/shader_recompiler/backend/glsl/emit_context.h
+++ b/src/shader_recompiler/backend/glsl/emit_context.h
@@ -37,7 +37,13 @@ public:
 
     template <GlslVarType type, typename... Args>
     void Add(const char* format_str, IR::Inst& inst, Args&&... args) {
-        code += fmt::format(format_str, var_alloc.Define(inst, type), std::forward<Args>(args)...);
+        const auto var_def{var_alloc.AddDefine(inst, type)};
+        if (var_def.empty()) {
+            // skip assigment.
+            code += fmt::format(&format_str[3], std::forward<Args>(args)...);
+        } else {
+            code += fmt::format(format_str, var_def, std::forward<Args>(args)...);
+        }
         // TODO: Remove this
         code += '\n';
     }
-- 
cgit v1.2.3