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

[via cfe-commits]

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+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
+; RUN: llc -verify-machineinstrs < %s -mcpu=pwr8 \
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RolandF77 wrote:

lwat is a pwr9 instruction. I guess the cpu isn't checked for inline asm? But if we're going to specify a cpu it should probably be pwr9.

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