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| author | Cameron Zwarich <zwarich@apple.com> | 2011-02-22 00:46:27 +0000 |
|---|---|---|
| committer | Cameron Zwarich <zwarich@apple.com> | 2011-02-22 00:46:27 +0000 |
| commit | 92efda7e9183ae16bde7a3ad96b682e779d89cf3 (patch) | |
| tree | c95dc6ff9ae0c0bf7b6a7698974efbddf606a779 /utils | |
| parent | 63a8dae64dea89ae4a6f93ee17cf3fbbc2815084 (diff) | |
Merge information about the number of zero, one, and sign bits of live-out registers
at phis. This enables us to eliminate a lot of pointless zexts during the DAGCombine
phase. This fixes <rdar://problem/8760114>.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126170 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'utils')
0 files changed, 0 insertions, 0 deletions