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Add a forgotten initializer for CheckedFirstInterference.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121410 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jakob Stoklund Olesen 2010-12-09 21:20:44 +00:00
parent e7e4b51afc
commit a0382c6290
2 changed files with 5 additions and 2 deletions
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2
lib/CodeGen/LiveIntervalUnion.cpp
View File

@ -168,6 +168,8 @@ LiveIntervalUnion::Query::firstInterference() {
IR.VirtRegI = VirtReg->end();
}
findIntersection(FirstInterference);
assert((IR.VirtRegI == VirtReg->end() || IR.LiveUnionI.valid())
&& "Uninitialized iterator");
return FirstInterference;
}

5
lib/CodeGen/LiveIntervalUnion.h
View File

@ -145,8 +145,8 @@ public:
Query(): LiveUnion(), VirtReg() {}
Query(LiveInterval *VReg, LiveIntervalUnion *LIU):
LiveUnion(LIU), VirtReg(VReg), SeenAllInterferences(false),
SeenUnspillableVReg(false)
LiveUnion(LIU), VirtReg(VReg), CheckedFirstInterference(false),
SeenAllInterferences(false), SeenUnspillableVReg(false)
{}
void clear() {
@ -159,6 +159,7 @@ public:
}
void init(LiveInterval *VReg, LiveIntervalUnion *LIU) {
assert(VReg && LIU && "Invalid arguments");
if (VirtReg == VReg && LiveUnion == LIU) {
// Retain cached results, e.g. firstInterference.
return;