[PATCH] D31573: [Builtins] Add IEEE 754 support for __fixunsxfti

[Weiming Zhao via Phabricator via llvm-commits]

weimingz added a comment.

If the platform doesn't support it, the LDBL_MANT_DIG will be 53 (refer to clang/test/Preprocessor/init.c )


https://reviews.llvm.org/D31573