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Correct transfer predicate information.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37524 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng 2007-06-08 19:17:12 +00:00
parent edf4896a14
commit 2acdbcccd8
1 changed files with 6 additions and 8 deletions
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14
lib/CodeGen/IfConversion.cpp
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@ -610,7 +610,6 @@ bool IfConverter::IfConvertSimple(BBInfo &BBI) {
// available if cmp executes.
IterIfcvt = false;
}
std::copy(Cond.begin(), Cond.end(), std::back_inserter(BBI.Predicate));
// Update block info. BB can be iteratively if-converted.
if (IterIfcvt)
@ -671,8 +670,6 @@ bool IfConverter::IfConvertTriangle(BBInfo &BBI) {
// Remove entry to false edge if false block is merged in as well.
if (FalseBBDead)
BBI.BB->removeSuccessor(FalseBBI.BB);
std::copy(BBI.BrCond.begin(), BBI.BrCond.end(),
std::back_inserter(BBI.Predicate));
// Update block info. BB can be iteratively if-converted.
if (IterIfcvt)
@ -785,11 +782,6 @@ bool IfConverter::IfConvertDiamond(BBInfo &BBI) {
// Merge the combined block into the entry of the diamond.
MergeBlocks(BBI, *BBI1);
std::copy(Cond1->begin(), Cond1->end(),
std::back_inserter(BBI.Predicate));
if (!NeedBr1)
std::copy(Cond2->begin(), Cond2->end(),
std::back_inserter(BBI.Predicate));
// 'True' and 'false' aren't combined, see if we need to add a unconditional
// branch to the 'false' block.
@ -837,6 +829,8 @@ void IfConverter::PredicateBlock(BBInfo &BBI,
}
BBI.NonPredSize = 0;
std::copy(Cond.begin(), Cond.end(), std::back_inserter(BBI.Predicate));
NumIfConvBBs++;
}
@ -883,4 +877,8 @@ void IfConverter::MergeBlocks(BBInfo &ToBBI, BBInfo &FromBBI) {
ToBBI.ModifyPredicate |= FromBBI.ModifyPredicate;
ToBBI.hasFallThrough = FromBBI.hasFallThrough;
std::copy(FromBBI.Predicate.begin(), FromBBI.Predicate.end(),
std::back_inserter(ToBBI.Predicate));
FromBBI.Predicate.clear();
}