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(parent: 4faa0e1) | patch
Work around a coalescer bug.
authorJakob Stoklund Olesen <stoklund@2pi.dk>
Sat, 5 Mar 2011 18:33:49 +0000 (18:33 +0000)
committerJakob Stoklund Olesen <stoklund@2pi.dk>
Sat, 5 Mar 2011 18:33:49 +0000 (18:33 +0000)
commit2b0f9e73d8623b21fc14335ef6208deab2629cdf
tree57dce841d7e8ff1e3f58fea12c289e51e8f448e5tree | snapshot
parent4faa0e19521f700ad10bfea69e141fc46c45f78bcommit | diff
Work around a coalescer bug.

The coalescer can in very rare cases leave too large live intervals around after
rematerializing cheap-as-a-move instructions.

Linear scan doesn't really care, but live range splitting gets very confused
when a live range is killed by a ghost instruction.

I will fix this properly in the coalescer after 2.9 branches.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127096 91177308-0d34-0410-b5e6-96231b3b80d8
lib/CodeGen/SplitKit.cpp diff | blob | history
lib/CodeGen/SplitKit.h diff | blob | history
C/C++ LLVM-based compilers that forbids OOTA behaviors