[clang] [llvm] PowerPC: Support `Q` constraint and `P` modifier in Inline Asm (PR #163616)

[via cfe-commits]

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@@ -0,0 +1,29 @@
+// RUN: %clang_cc1 -emit-llvm -triple powerpc64-ibm-aix-xcoff \
+// RUN:   %s -o - | FileCheck %s
+
+#include <stdint.h>
+
+// Test Atomic Memory Operation Support:
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RolandF77 wrote:

Don't think these 2 lines are needed.

https://github.com/llvm/llvm-project/pull/163616