[clang] [clang][Driver] Define soft float macros for PPC. (PR #106012)

[Alex Rønne Petersen via cfe-commits]

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@@ -439,14 +443,12 @@ void PPCTargetInfo::getTargetDefines(const LangOptions &Opts,
   // FIXME: The following are not yet generated here by Clang, but are
   //        generated by GCC:
   //
-  //   _SOFT_FLOAT_
   //   __RECIP_PRECISION__
   //   __APPLE_ALTIVEC__
   //   __RECIP__
   //   __RECIPF__
   //   __RSQRTE__
   //   __RSQRTEF__
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alexrp wrote:

Looks like `__RECIP__` and `__RECIPF__` too? Will do.

https://github.com/llvm/llvm-project/pull/106012