[PATCH] D135680: [clang][ARM] follow GCC behavior for defining __SOFTFP__

[Ties Stuij via Phabricator via cfe-commits]

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GCC behavior regarding defining __SOFTFP__ when (implicitly) specifying
-mfloat-abi=softfp:

- compile without (implicit) FP: define __SOFTFP__
- compile with (implicit) FP: don't define __SOFTFP__

Currently Clang doesn't define __SOFTFP__ when softfp is specified, either with
or without FP. This patch brings Clang in line with GCC behavior.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D135680

Files:
  clang/lib/Basic/Targets/ARM.cpp
  clang/test/Preprocessor/init-arm.c

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