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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2012-05-19 23:34:59 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2012-05-19 23:34:59 +0000 |
| commit | 7ebed91fddbcd259d03c4b438719ac1ce2a4fc87 (patch) | |
| tree | ad2dfa847de2a06219ea704c33e2ae5c49b11cac /lib/TableGen/StringMatcher.cpp | |
| parent | 9012c57e18d76d562b1f3e60bf19cccefa7b793e (diff) | |
Fix 12892.
Dead code elimination during coalescing could cause a virtual register
to be split into connected components. The following rewriting would be
confused about the already joined copies present in the code, but
without a corresponding value number in the live range.
Erase all joined copies instantly when joining intervals such that the
MI and LiveInterval representations are always in sync.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157135 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/TableGen/StringMatcher.cpp')
0 files changed, 0 insertions, 0 deletions