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authorJakob Stoklund Olesen <stoklund@2pi.dk>2010-12-17 23:16:38 +0000
committerJakob Stoklund Olesen <stoklund@2pi.dk>2010-12-17 23:16:38 +0000
commit8d121404370cd57be7e72543127a1afe2faa1b10 (patch)
treef1031385bc2a5e61ab4ed51df2ad8c2d5bb3283d /include/llvm/CodeGen
parentaf24964251e27c2dd863239ba66ffd967b593be5 (diff)
Avoid dereferencing end() in collectInterferingVRegs() when there is no
interference. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122108 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include/llvm/CodeGen')
-rw-r--r--include/llvm/CodeGen/LiveInterval.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/llvm/CodeGen/LiveInterval.h b/include/llvm/CodeGen/LiveInterval.h
index c21df28cdd..72f1624d06 100644
--- a/include/llvm/CodeGen/LiveInterval.h
+++ b/include/llvm/CodeGen/LiveInterval.h
@@ -250,6 +250,7 @@ namespace llvm {
/// position is in a hole, this method returns an iterator pointing to the
/// LiveRange immediately after the hole.
iterator advanceTo(iterator I, SlotIndex Pos) {
+ assert(I != end());
if (Pos >= endIndex())
return end();
while (I->end <= Pos) ++I;