[PATCH] D20419: [Sparc] Add software float option -msoft-float

[Jacob Baungard Hansen via cfe-commits]

jacob_hansen created this revision.
jacob_hansen added reviewers: jyknight, lero_chris.
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Herald added a subscriber: jyknight.

Following patch D19265 which enable software floating point support in the Sparc backend, this patch enables the option to be enabled in the front-end using the -msoft-float option.

The user should ensure a library (such as the builtins from Compiler-RT) that includes the software floating point routines is provided.

http://reviews.llvm.org/D20419

Files:
  lib/Basic/Targets.cpp
  lib/Driver/Tools.cpp
  lib/Driver/Tools.h
  test/CodeGen/function-target-features.c
  test/Driver/sparc-float.c

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