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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2011-05-06 19:31:19 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2011-05-06 19:31:19 +0000 |
| commit | 57c8f58aeb31ab42d0163d756f5f7550f8f29c6d (patch) | |
| tree | 89a5da73b1d385e1b1b678e4906cd77487466025 /llvm/lib/CodeGen/LiveDebugVariables.cpp | |
| parent | 59ddb73d478c36efd0865f650433f84ce00e3ffe (diff) | |
| download | bcm5719-llvm-57c8f58aeb31ab42d0163d756f5f7550f8f29c6d.tar.gz bcm5719-llvm-57c8f58aeb31ab42d0163d756f5f7550f8f29c6d.zip | |
Iterate backwards over debug locations when splitting them so they can be safely erased.
This should unbreak dragonegg-i386-linux and build-self-4-mingw32.
llvm-svn: 131007
Diffstat (limited to 'llvm/lib/CodeGen/LiveDebugVariables.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/LiveDebugVariables.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/LiveDebugVariables.cpp b/llvm/lib/CodeGen/LiveDebugVariables.cpp index 41bf87fc5db..783a7e1ded0 100644 --- a/llvm/lib/CodeGen/LiveDebugVariables.cpp +++ b/llvm/lib/CodeGen/LiveDebugVariables.cpp @@ -795,7 +795,10 @@ UserValue::splitLocation(unsigned OldLocNo, ArrayRef<LiveInterval*> NewRegs) { bool UserValue::splitRegister(unsigned OldReg, ArrayRef<LiveInterval*> NewRegs) { bool DidChange = false; - for (unsigned LocNo = 0, E = locations.size(); LocNo != E; ++LocNo) { + // Split locations referring to OldReg. Iterate backwards so splitLocation can + // safely erase unuused locations. + for (unsigned i = locations.size(); i ; --i) { + unsigned LocNo = i-1; const MachineOperand *Loc = &locations[LocNo]; if (!Loc->isReg() || Loc->getReg() != OldReg) continue; |
