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| author | Evan Cheng <evan.cheng@apple.com> | 2009-04-25 09:25:19 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2009-04-25 09:25:19 +0000 |
| commit | 1068b72ec6c6d7ec5634c4998e654d04d4d4418f (patch) | |
| tree | 4b7ce576a63ecc54b81839020dc536924f21ec4a /lib/CodeGen/SelectionDAG/SelectionDAG.cpp | |
| parent | 4f9a0dc164eadb18f9aa001c7b714dadb6b7635e (diff) | |
| download | external_llvm-1068b72ec6c6d7ec5634c4998e654d04d4d4418f.zip external_llvm-1068b72ec6c6d7ec5634c4998e654d04d4d4418f.tar.gz external_llvm-1068b72ec6c6d7ec5634c4998e654d04d4d4418f.tar.bz2 | |
Do not share a single unknown val# for all the live ranges merged into a physical sub-register live interval. When coalescer is merging in clobbered virtaul register live interval into a physical register live interval, give each virtual register val# a separate val# in the physical register live interval. Otherwise, the coalescer would have lost track of the definitions information it needs to make correct coalescing decisions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70026 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/SelectionDAG/SelectionDAG.cpp')
0 files changed, 0 insertions, 0 deletions