[clang] [Clang] diagnosing missing Vulkan environment when using SPIR-V triple (PR #190840)

[Aaron Ballman via cfe-commits]

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@@ -0,0 +1,7 @@
+// RUN: not %clang -target spirv %s 2>&1 | FileCheck %s --check-prefix=CHECK-VULKAN
+// RUN: not %clang -target spirv-vulkan-mlibc %s 2>&1 | FileCheck %s --check-prefix=CHECK-SHADER
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AaronBallman wrote:

```suggestion
// RUN: not %clang_cc1 -target spirv %s 2>&1 | FileCheck %s --check-prefix=CHECK-VULKAN
// RUN: not %clang_cc1 -target spirv-vulkan-mlibc %s 2>&1 | FileCheck %s --check-prefix=CHECK-SHADER
```
You should be running clang -cc1 instead of clang.

Should this be using `-target` instead of `-triple` or does it not matter, @MaskRay?

https://github.com/llvm/llvm-project/pull/190840