[PATCH] D31149: [PowerPC] Fix sanitizer frame unwind on 32-bit ABIs

[Kostya Serebryany via Phabricator via llvm-commits]

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+llvm-commits (please don't forget it)
The only place where the C preprocessor is welcome is lib/sanitizer_common/sanitizer_platform.h


https://reviews.llvm.org/D31149