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| author | Chris Lattner <sabre@nondot.org> | 2006-06-26 19:20:48 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2006-06-26 19:20:48 +0000 |
| commit | 959e321a1b41e70cfb2c67cebb3a8c1f79cbf3d3 (patch) | |
| tree | ef7854dd53f892f67456284c50800607afdaba57 /lib/Analysis/AliasSetTracker.cpp | |
| parent | 69fd7a3973a5c4ba4fb883b836fd0b84c046d10c (diff) | |
| download | llvm-959e321a1b41e70cfb2c67cebb3a8c1f79cbf3d3.tar.gz llvm-959e321a1b41e70cfb2c67cebb3a8c1f79cbf3d3.tar.bz2 llvm-959e321a1b41e70cfb2c67cebb3a8c1f79cbf3d3.tar.xz | |
Fix a stale pointer issue that caused 300.twolf to fail to build on zion
last night.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28916 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Analysis/AliasSetTracker.cpp')
| -rw-r--r-- | lib/Analysis/AliasSetTracker.cpp | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/lib/Analysis/AliasSetTracker.cpp b/lib/Analysis/AliasSetTracker.cpp index 3f6aa2c9b9..83ba69a69d 100644 --- a/lib/Analysis/AliasSetTracker.cpp +++ b/lib/Analysis/AliasSetTracker.cpp @@ -435,6 +435,17 @@ void AliasSetTracker::deleteValue(Value *PtrVal) { // Notify the alias analysis implementation that this value is gone. AA.deleteValue(PtrVal); + // If this is a call instruction, remove the callsite from the appropriate + // AliasSet. + CallSite CS = CallSite::get(PtrVal); + if (CS.getInstruction()) { + Function *F = CS.getCalledFunction(); + if (!F || !AA.doesNotAccessMemory(F)) { + if (AliasSet *AS = findAliasSetForCallSite(CS)) + AS->removeCallSite(CS); + } + } + // First, look up the PointerRec for this pointer. hash_map<Value*, AliasSet::PointerRec>::iterator I = PointerMap.find(PtrVal); if (I == PointerMap.end()) return; // Noop |