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Move an assertion so it doesn't dereference end(). 

The R600 target has test cases that exercises this code.

llvm-svn: 171538
This commit is contained in:
Jakob Stoklund Olesen 2013-01-04 22:17:31 +00:00
parent 874f01e956
commit 7f92b7ad0a
1 changed files with 3 additions and 4 deletions
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7
llvm/lib/CodeGen/MachineInstrBundle.cpp
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@ -224,14 +224,13 @@ bool llvm::finalizeBundles(MachineFunction &MF) {
bool Changed = false; bool Changed = false;
for (MachineFunction::iterator I = MF.begin(), E = MF.end(); I != E; ++I) { for (MachineFunction::iterator I = MF.begin(), E = MF.end(); I != E; ++I) {
MachineBasicBlock &MBB = *I; MachineBasicBlock &MBB = *I;
MachineBasicBlock::instr_iterator MII = MBB.instr_begin(); MachineBasicBlock::instr_iterator MII = MBB.instr_begin();
assert(!MII->isInsideBundle() &&
"First instr cannot be inside bundle before finalization!");
MachineBasicBlock::instr_iterator MIE = MBB.instr_end(); MachineBasicBlock::instr_iterator MIE = MBB.instr_end();
if (MII == MIE) if (MII == MIE)
continue; continue;
assert(!MII->isInsideBundle() &&
"First instr cannot be inside bundle before finalization!");
for (++MII; MII != MIE; ) { for (++MII; MII != MIE; ) {
if (!MII->isInsideBundle()) if (!MII->isInsideBundle())
++MII; ++MII;