diff options
| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2010-06-15 18:49:14 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2010-06-15 18:49:14 +0000 |
| commit | 642767a8f648c45c9dabaea089bdf48783ad4806 (patch) | |
| tree | 0fb6f8f328b9c8427978c85052fe9062aa656d54 /lib/CodeGen/CodePlacementOpt.cpp | |
| parent | 01320da35e8a0a327ede52cc1d4598b0a317f00b (diff) | |
| download | external_llvm-642767a8f648c45c9dabaea089bdf48783ad4806.zip external_llvm-642767a8f648c45c9dabaea089bdf48783ad4806.tar.gz external_llvm-642767a8f648c45c9dabaea089bdf48783ad4806.tar.bz2 | |
Fix an exotic bug that only showed up in an internal test case.
SimpleRegisterCoalescing::JoinIntervals() uses CoalescerPair to determine if a
copy is coalescable, and in very rare cases it can return true where LHS is not
live - the coalescable copy can come from an alias of the physreg in LHS.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106021 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/CodePlacementOpt.cpp')
0 files changed, 0 insertions, 0 deletions