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| author | Dan Gohman <gohman@apple.com> | 2009-08-10 23:43:19 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2009-08-10 23:43:19 +0000 |
| commit | 00edf39b3447db1b8dc0030d716ef70675f55755 (patch) | |
| tree | fd3bdbf3b6f17cfd872ba70406d8833230946c15 /lib/CodeGen/RegAllocPBQP.cpp | |
| parent | a407ca16c29b4e91ef3cf9e188ac2e3ab6920cd8 (diff) | |
| download | external_llvm-00edf39b3447db1b8dc0030d716ef70675f55755.zip external_llvm-00edf39b3447db1b8dc0030d716ef70675f55755.tar.gz external_llvm-00edf39b3447db1b8dc0030d716ef70675f55755.tar.bz2 | |
Fix a bug in the DAGCombiner's handling of multiple linked
MERGE_VALUES nodes. Replacing the result values with the
operands in one MERGE_VALUES node may cause another
MERGE_VALUES node be CSE'd with the first one, and bring
its uses along, so that the first one isn't dead, as this
code expects. Fix this by iterating until the node is
really dead. This fixes PR4699.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78619 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/RegAllocPBQP.cpp')
0 files changed, 0 insertions, 0 deletions