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| author | Quentin Colombet <qcolombet@apple.com> | 2014-04-11 19:45:07 +0000 |
|---|---|---|
| committer | Quentin Colombet <qcolombet@apple.com> | 2014-04-11 19:45:07 +0000 |
| commit | 441d6d505bf3339b5c7bb4374216128a4935b25e (patch) | |
| tree | ff2acb63cb43823fe6fa7efea6dd59ee6fdb6552 /include/llvm/MC/MCDisassembler.h | |
| parent | 6e6126ac4c30a475c44bdfae3a75b71b571cba94 (diff) | |
| download | llvm-441d6d505bf3339b5c7bb4374216128a4935b25e.tar.gz llvm-441d6d505bf3339b5c7bb4374216128a4935b25e.tar.bz2 llvm-441d6d505bf3339b5c7bb4374216128a4935b25e.tar.xz | |
[Register Coalescer] Fix wrong live-range information with rematerialization.
When rematerializing an instruction that defines a super register that would be
used by a physical subregisters we use the related physical super register for
the definition.
To keep the live-range information accurate, all the defined subregisters must be
marked as dead def, otherwise the register allocation may miss some
interferences.
Working on a reduced test-case!
<rdar://problem/16582185>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206060 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include/llvm/MC/MCDisassembler.h')
0 files changed, 0 insertions, 0 deletions