Speculatively revert r123384 to make llvm-gcc-i386-linux-selfhost buildbot happy.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123389 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Devang Patel 2011-01-13 19:27:50 +00:00
parent 006bfeba06
commit a851fd8cd8
2 changed files with 5 additions and 18 deletions

View File

@ -155,22 +155,11 @@ MachineBasicBlock::SkipPHIsAndLabels(MachineBasicBlock::iterator I) {
}
MachineBasicBlock::iterator MachineBasicBlock::getFirstTerminator() {
iterator B = begin(), I = end();
iterator Term = I;
while (I != B) {
--I;
// Ignore any debug values after the first terminator.
if (I->isDebugValue())
continue;
// Stop once we see a non-debug non-terminator.
if (!I->getDesc().isTerminator())
break;
// Earliest terminator so far.
Term = I;
}
// Return the first terminator, or end().
// Everything after Term is terminators and debug values.
return Term;
iterator I = end();
while (I != begin() && (--I)->getDesc().isTerminator())
; /*noop */
if (I != end() && !I->getDesc().isTerminator()) ++I;
return I;
}
void MachineBasicBlock::dump() const {

View File

@ -339,8 +339,6 @@ void PHIElimination::LowerAtomicPHINode(
#ifndef NDEBUG
for (MachineBasicBlock::iterator TI = llvm::next(Term);
TI != opBlock.end(); ++TI) {
if (TI->isDebugValue())
continue;
assert(!TI->readsRegister(SrcReg) &&
"Terminator instructions cannot use virtual registers unless"
"they are the first terminator in a block!");