llvm-project

Commit Graph

Author	SHA1	Message	Date
Andrea Di Biagio	af3f397b10	[X86] Teach how to custom lower double-to-half conversions under fast-math. This patch teaches the backend how to expand a double-half conversion into a double-float conversion immediately followed by a float-half conversion. We do this only under fast-math, and if float-half conversions are legal for the target. Added test CodeGen/X86/fastmath-float-half-conversion.ll Differential Revision: http://reviews.llvm.org/D7832 llvm-svn: 230276	2015-02-23 22:59:02 +00:00

Author

SHA1

Message

Date

Andrea Di Biagio

af3f397b10

[X86] Teach how to custom lower double-to-half conversions under fast-math.

This patch teaches the backend how to expand a double-half conversion into
a double-float conversion immediately followed by a float-half conversion.
We do this only under fast-math, and if float-half conversions are legal
for the target.

Added test CodeGen/X86/fastmath-float-half-conversion.ll

Differential Revision: http://reviews.llvm.org/D7832

llvm-svn: 230276

2015-02-23 22:59:02 +00:00

1 Commits