Commit Graph

3 Commits

Author SHA1 Message Date
Saleem Abdulrasool 911cfc11c4 builtins: spell inline as __inline
__inline is a vendor specific spelling for inline.  clang and gcc treat it the
same as inline, and is available in MSVC 2013 which does not implement C99
(VS2015 supports the inline keyword though).  This will allow us to build the
builtins using MSVC.

llvm-svn: 249953
2015-10-10 21:21:28 +00:00
Pirama Arumuga Nainar 4a39e80809 Fix incorrect truncation at the overflow boundary
Summary:
This patch fixes incorrect truncation when the input wider value is
exactly 2^dstBits.  For that value, the overflow to infinity is not
correctly handled.  The fix is to replace a strict '>' with '>='.

Currently,
__truncdfsf2(340282366900000000000000000000000000000.0) returns infinity
__truncdfsf2(340282366920938463463374607431768211456.0) returns 0
__truncdfsf2(400000000000000000000000000000000000000.0) returns infinity

Likewise, __truncdfhf2 and __truncsfhf2 (and consequently gnu_f2h_ieee)
are discontinuous at 65536.0.

This patch adds tests for all three cases, along with adding a missing
header include to fp_test.h.

Reviewers: joerg, ab, srhines

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D10594

llvm-svn: 240450
2015-06-23 20:24:53 +00:00
Joerg Sonnenberger 304a36b5fc Refactor truncdfsf2.
Patch by: GuanHong Liu
Differential Revision: http://reviews.llvm.org/D3888

llvm-svn: 209779
2014-05-29 00:49:57 +00:00