HomePhabricator

[CodeGen] Fix problem with X86 byte registers in CriticalAntiDepBreaker

Description

[CodeGen] Fix problem with X86 byte registers in CriticalAntiDepBreaker

CriticalAntiDepBreaker was not correctly tracking defs of the high X86 byte
registers, leading to incorrect use of a busy register to break an
antidependence.

Fixes pr27681, and its duplicates pr27580, pr27804.

Differential Revision: http://reviews.llvm.org/D20456

Details

Committed
mbodartMay 26 2016, 4:08 PM
Differential Revision
D20456: [CodeGen] Fix problem with X86 byte registers in CriticalAntiDepBreaker
Parents
rL270934: Fix typo.
Branches
Unknown
Tags
Unknown