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| author | Evan Cheng <evan.cheng@apple.com> | 2008-04-10 02:32:10 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2008-04-10 02:32:10 +0000 |
| commit | 9d339849ee0e34c59ae66b2a2cd413182677df4b (patch) | |
| tree | b11f47b608d13455094d27812f965d99af6f15e6 /llvm/utils/TableGen | |
| parent | 0e91b419023b9270ee6cc36982bebb4e68f4a837 (diff) | |
| download | bcm5719-llvm-9d339849ee0e34c59ae66b2a2cd413182677df4b.tar.gz bcm5719-llvm-9d339849ee0e34c59ae66b2a2cd413182677df4b.zip | |
Teach branch folding pass about implicit_def instructions. Unfortunately we can't just eliminate them since register scavenger expects every register use to be defined. However, we can delete them when there are no intra-block uses. Carefully removing some implicit def's which enable more blocks to be optimized away.
llvm-svn: 49461
Diffstat (limited to 'llvm/utils/TableGen')
0 files changed, 0 insertions, 0 deletions
