Commit Graph

1 Commits

Author SHA1 Message Date
Bob Wilson d91d5bfc95 Fix a register scavenger crash when dealing with undefined subregs.
The LowerSubregs pass needs to preserve implicit def operands attached to
EXTRACT_SUBREG instructions when it replaces those instructions with copies.

llvm-svn: 107189
2010-06-29 18:42:49 +00:00