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Don't make changes to the MBB in MachineBasicBlock::canFallThrough().

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This fixes the regression for -pre-regalloc-taildup in
MultiSource/Applications/lambda-0.1.3.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93541 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jakob Stoklund Olesen 2010-01-15 20:00:12 +00:00
parent 057d53993c
commit 33cc8d6b55
1 changed files with 1 additions and 1 deletions
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2
lib/CodeGen/MachineBasicBlock.cpp
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@ -378,7 +378,7 @@ bool MachineBasicBlock::canFallThrough() {
MachineBasicBlock *TBB = 0, *FBB = 0;
SmallVector<MachineOperand, 4> Cond;
const TargetInstrInfo *TII = getParent()->getTarget().getInstrInfo();
if (TII->AnalyzeBranch(*this, TBB, FBB, Cond, true)) {
if (TII->AnalyzeBranch(*this, TBB, FBB, Cond)) {
// If we couldn't analyze the branch, examine the last instruction.
// If the block doesn't end in a known control barrier, assume fallthrough
// is possible. The isPredicable check is needed because this code can be