From fd913bceafe8a702baf9b91ce8e618c17c965a64 Mon Sep 17 00:00:00 2001
From: ReinUsesLisp <reinuseslisp@airmail.cc>
Date: Sun, 23 May 2021 04:20:37 -0300
Subject: [PATCH] spirv: Add OpKill fallback to demote

---
 .../backend/spirv/emit_spirv_control_flow.cpp             | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/shader_recompiler/backend/spirv/emit_spirv_control_flow.cpp b/src/shader_recompiler/backend/spirv/emit_spirv_control_flow.cpp
index d3a1db340c..b4a6fbb937 100644
--- 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