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-rw-r--r--src/video_core/renderer_opengl/gl_shader_decompiler.cpp4
-rw-r--r--src/video_core/renderer_vulkan/vk_shader_decompiler.cpp4
2 files changed, 6 insertions, 2 deletions
diff --git a/src/video_core/renderer_opengl/gl_shader_decompiler.cpp b/src/video_core/renderer_opengl/gl_shader_decompiler.cpp
index 960ebf1a1..f695ee1db 100644
--- a/src/video_core/renderer_opengl/gl_shader_decompiler.cpp
+++ b/src/video_core/renderer_opengl/gl_shader_decompiler.cpp
@@ -1538,7 +1538,9 @@ private:
Expression target;
if (const auto gpr = std::get_if<GprNode>(&*dest)) {
if (gpr->GetIndex() == Register::ZeroIndex) {
- // Writing to Register::ZeroIndex is a no op
+ // Writing to Register::ZeroIndex is a no op but we still have to visit the source
+ // as it might have side effects.
+ code.AddLine("{};", Visit(src).GetCode());
return {};
}
target = {GetRegister(gpr->GetIndex()), Type::Float};
diff --git a/src/video_core/renderer_vulkan/vk_shader_decompiler.cpp b/src/video_core/renderer_vulkan/vk_shader_decompiler.cpp
index 808a265e5..1749e068e 100644
--- a/src/video_core/renderer_vulkan/vk_shader_decompiler.cpp
+++ b/src/video_core/renderer_vulkan/vk_shader_decompiler.cpp
@@ -1361,7 +1361,9 @@ private:
Expression target{};
if (const auto gpr = std::get_if<GprNode>(&*dest)) {
if (gpr->GetIndex() == Register::ZeroIndex) {
- // Writing to Register::ZeroIndex is a no op
+ // Writing to Register::ZeroIndex is a no op but we still have to visit its source
+ // because it might have side effects.
+ Visit(src);
return {};
}
target = {registers.at(gpr->GetIndex()), Type::Float};