llvm-project

Commit Graph

Author	SHA1	Message	Date
David L Kreitzer	188de5ae69	Adds the ability to use an epilog remainder loop during loop unrolling and makes this the default behavior. Patch by Evgeny Stupachenko (evstupac@gmail.com). Differential Revision: http://reviews.llvm.org/D18158 llvm-svn: 265388	2016-04-05 12:19:35 +00:00
David Majnemer	453f7a1480	[LoopUnroll] Use undef for phis with no value live We would create a phi node with a zero initialized operand instead of undef in the case where no value was originally available. This was problematic for x86_mmx which has no null value. llvm-svn: 241143	2015-07-01 05:38:07 +00:00

Author

SHA1

Message

Date

David L Kreitzer

188de5ae69

Adds the ability to use an epilog remainder loop during loop unrolling and makes

this the default behavior.

Patch by Evgeny Stupachenko (evstupac@gmail.com).

Differential Revision: http://reviews.llvm.org/D18158

llvm-svn: 265388

2016-04-05 12:19:35 +00:00

David Majnemer

453f7a1480

[LoopUnroll] Use undef for phis with no value live

We would create a phi node with a zero initialized operand instead of
undef in the case where no value was originally available.  This was
problematic for x86_mmx which has no null value.

llvm-svn: 241143

2015-07-01 05:38:07 +00:00

2 Commits