[mips] Removing __SIZEOF_INT128__ macro for MIPS64
This is a temporary workaround while MIPS64 has not yet fully supported
128-bit integers. But declaration of int128 type is necessary even though
`__SIZEOF_INT128__` is undefined because c++ standard header files like
`limits` throw error message if `__int128` is not available.
Patch by Sagar Thakur.
Differential Revision: http://reviews.llvm.org/D6402
llvm-svn: 223927
diff --git a/clang/lib/Frontend/InitPreprocessor.cpp b/clang/lib/Frontend/InitPreprocessor.cpp
index 3550ac2..f4241a9 100644
--- a/clang/lib/Frontend/InitPreprocessor.cpp
+++ b/clang/lib/Frontend/InitPreprocessor.cpp
@@ -662,7 +662,12 @@
TI.getTypeWidth(TI.getWCharType()), TI, Builder);
DefineTypeSizeof("__SIZEOF_WINT_T__",
TI.getTypeWidth(TI.getWIntType()), TI, Builder);
- if (TI.hasInt128Type())
+ // This is a temporary workaround while MIPS64 has not yet fully supported
+ // 128-bit integers. But declaration of int128 type is necessary even though
+ // __SIZEOF_INT128__ is undefined because c++ standard header files like
+ // limits throw error message if __int128 is not available.
+ if (TI.hasInt128Type() && !(TI.getTriple().getArch() == llvm::Triple::mips64el
+ || TI.getTriple().getArch() == llvm::Triple::mips64))
DefineTypeSizeof("__SIZEOF_INT128__", 128, TI, Builder);
DefineType("__INTMAX_TYPE__", TI.getIntMaxType(), Builder);