shader: Properly manage attributes not written from previous stages

1 files changed, 3 insertions, 1 deletions

diff --git a/src/shader_recompiler/frontend/maxwell/translate_program.cpp b/src/shader_recompiler/frontend/maxwell/translate_program.cpp
index 5250509c1..ed8729fca 100644
--- a/src/shader_recompiler/frontend/maxwell/translate_program.cpp
+++ b/src/shader_recompiler/frontend/maxwell/translate_program.cpp
@@ -192,7 +192,9 @@ IR::Program MergeDualVertexPrograms(IR::Program& vertex_a, IR::Program& vertex_b
     result.local_memory_size = std::max(vertex_a.local_memory_size, vertex_b.local_memory_size);
     for (size_t index = 0; index < 32; ++index) {
         result.info.input_generics[index].used |= vertex_b.info.input_generics[index].used;
-        result.info.stores_generics[index] |= vertex_b.info.stores_generics[index];
+        if (vertex_b.info.stores_generics[index]) {
+            result.info.stores_generics[index] = true;
+        }
     }
     Optimization::JoinTextureInfo(result.info, vertex_b.info);
     Optimization::JoinStorageInfo(result.info, vertex_b.info);