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

[Juan Manuel Martinez Caamaño via llvm-commits]

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@@ -244,7 +244,8 @@ static cl::opt<bool> SPVEnableNonSemanticDI(
     cl::Optional, cl::init(false));
 
 void SPIRVPassConfig::addPreEmitPass() {
-  if (SPVEnableNonSemanticDI) {
+  if (SPVEnableNonSemanticDI ||
+      getSPIRVTargetMachine().getTargetTriple().getVendor() == Triple::AMD) {
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jmmartinez wrote:

I wonder if this condition can be moved inside the pass. Maybe for the future.

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