[llvm] [clang] [KMSAN] Enable on PowerPC64 (PR #73611)

[Fangrui Song via cfe-commits]

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@@ -0,0 +1,149 @@
+; RUN: opt < %s -S -msan-kernel=1 -passes=msan 2>&1 | FileCheck %s
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MaskRay wrote:

Since the directory name contains `PowerPC`, it's unnecessary to repeat `ppc64le`.

You can use `basic-kernel.ll` like SystemZ/ or `kernel.ll`.

https://github.com/llvm/llvm-project/pull/73611