spirv: Add OpKill fallback to demote

5 years ago · 1922cbb84c
1 changed files with 6 additions and 2 deletions
--- a/src/shader_recompiler/backend/spirv/emit_spirv_control_flow.cpp
+++ b/src/shader_recompiler/backend/spirv/emit_spirv_control_flow.cpp
@ -35,8 +35,12 @@ void EmitUnreachable(EmitContext& ctx) {
 }

 void EmitDemoteToHelperInvocation(EmitContext& ctx, Id continue_label) {
-    ctx.OpDemoteToHelperInvocationEXT();
-    ctx.OpBranch(continue_label);
+    if (ctx.profile.support_demote_to_helper_invocation) {
+        ctx.OpDemoteToHelperInvocationEXT();
+        ctx.OpBranch(continue_label);
+    } else {
+        ctx.OpKill();
+    }
 }

 } // namespace Shader::Backend::SPIRV