6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-12-12 13:30:51 +00:00
Code Issues Projects Releases Wiki Activity

R600: avoid calling std::next on an iterator that might be end()

Browse Source 
This was causing my llc to go into an infinite loop on
CodeGen/R600/address-space.ll (just triggered recently by some allocator
changes).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205005 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Tim Northover 2014-03-28 13:52:56 +00:00
parent b7de4288bc
commit bd2cca79b7
1 changed files with 3 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
lib/Target/R600/SILowerControlFlow.cpp
View File

@ -439,10 +439,10 @@ bool SILowerControlFlowPass::runOnMachineFunction(MachineFunction &MF) {
BI != BE; ++BI) {
MachineBasicBlock &MBB = *BI;
for (MachineBasicBlock::iterator I = MBB.begin(), Next = std::next(I);
I != MBB.end(); I = Next) {
MachineBasicBlock::iterator I, Next;
for (I = MBB.begin(); I != MBB.end(); I = Next) {
Next = std::next(I);
MachineInstr &MI = *I;
if (TII->isDS(MI.getOpcode())) {
NeedM0 = true;