[llvm] [NFC][SPIRV] Add AMDGCN SPIR-V specific defaults to the BE (PR #165815)

[Manuel Carrasco via llvm-commits]

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@@ -6,6 +6,7 @@
 ; RUN: llc -O0 -mtriple=spirv64v1.4-unknown-unknown %s -o - --filetype=obj | spirv-dis | FileCheck %s --check-prefix=CHECK-SPIRV14
 ; RUN: llc -O0 -mtriple=spirv64v1.5-unknown-unknown %s -o - --filetype=obj | spirv-dis | FileCheck %s --check-prefix=CHECK-SPIRV15
 ; RUN: llc -O0 -mtriple=spirv64v1.6-unknown-unknown %s -o - --filetype=obj | spirv-dis | FileCheck %s --check-prefix=CHECK-SPIRV16
+; RUN: llc -O0 -mtriple=spirv64-amd-amdhsa %s -o - --filetype=obj | spirv-dis | FileCheck %s --check-prefix=AMDGCNSPIRV
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mgcarrasco wrote:

Extremely minor: `CHECK-AMDGCNSPIRV` instead of `AMDGCNSPIRV`?

https://github.com/llvm/llvm-project/pull/165815