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This only affects targets like Mips where branch instructions may kill virtual registers. Most other targets branch on flag values, so virtual registers are not involved. The problem is that MachineBasicBlock::updateTerminator deletes branches and inserts new ones while LiveVariables keeps a list of pointers to instructions that kill virtual registers. That list wasn't properly updated in MBB::SplitCriticalEdge. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132298 91177308-0d34-0410-b5e6-96231b3b80d8 |
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Alpha | ||
ARM | ||
Blackfin | ||
CBackend | ||
CellSPU | ||
CPP | ||
Generic | ||
MBlaze | ||
Mips | ||
MSP430 | ||
PowerPC | ||
PTX | ||
SPARC | ||
SystemZ | ||
Thumb | ||
Thumb2 | ||
X86 | ||
XCore |