[llvm] [clang] [PowerPC] Make "ca" aliased to "xer" (PR #77557)

[Kai Luo via cfe-commits]

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@@ -0,0 +1,14 @@
+// REQUIRES: powerpc-registered-target
+// RUN: %clang -target powerpc64le -c %s -mllvm -stop-after=finalize-isel -o - | \
+// RUN:   FileCheck %s
+// RUN: %clang -target powerpc64 -c %s -mllvm -stop-after=finalize-isel -o - | \
+// RUN:   FileCheck %s
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bzEq wrote:

`-mllvm -stop-after=finalize-isel` should make `-c` and `-S` no difference, I think.

https://github.com/llvm/llvm-project/pull/77557