================
@@ -0,0 +1,13 @@
+; RUN: not llc -verify-machineinstrs -O0 -mtriple=spirv64-unknown-unknown %s
-o /dev/null 2>&1 | FileCheck %s
+; RUN: not llc -verify-machineinstrs -O0 -mtriple=spirv32-unknown-unknown %s
-o /dev/null 2>&1 | FileCheck %s
+
+; CHECK: LLVM ERROR: %{{.*}} = G_INTRINSIC intrinsic(@llvm.spv.faceforward),
%{{.*}}, %{{.*}}, %{{.*}} is only supported with the GLSL extended instruction
set.
+
+define noundef <4 x float> @faceforward_float4(<4 x float> noundef %a, <4 x
float> noundef %b, <4 x float> noundef %c) {
+entry:
+ %spv.faceforward = call <4 x float> @llvm.spv.faceforward.v4f32(<4 x float>
%a, <4 x float> %b, <4 x float> %c)
----------------
farzonl wrote:
I'm a little concerned that we might be pattern matching faceforward to an
intrinsic that should only work for vulkan targets. That would mean if you are
trying to write faceforward source in openCL we would replace it with an
intrinsic that will error.
So one of two things to make this valid.
1. We don't do pattern matching if it isn't valid for all SPIRV targets
2. We only do pattern matching in this specific case if we know we are
targetting vulkan.
https://github.com/llvm/llvm-project/pull/139959
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