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cache result of operator*
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107982 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -294,7 +294,8 @@ bool GlobalsModRef::AnalyzeIndirectGlobalMemory(GlobalValue *GV) {
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// Walk the user list of the global. If we find anything other than a direct
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// Walk the user list of the global. If we find anything other than a direct
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// load or store, bail out.
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// load or store, bail out.
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for (Value::use_iterator I = GV->use_begin(), E = GV->use_end(); I != E; ++I){
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for (Value::use_iterator I = GV->use_begin(), E = GV->use_end(); I != E; ++I){
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if (LoadInst *LI = dyn_cast<LoadInst>(*I)) {
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User *U = *I;
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if (LoadInst *LI = dyn_cast<LoadInst>(U)) {
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// The pointer loaded from the global can only be used in simple ways:
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// The pointer loaded from the global can only be used in simple ways:
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// we allow addressing of it and loading storing to it. We do *not* allow
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// we allow addressing of it and loading storing to it. We do *not* allow
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// storing the loaded pointer somewhere else or passing to a function.
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// storing the loaded pointer somewhere else or passing to a function.
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@ -302,7 +303,7 @@ bool GlobalsModRef::AnalyzeIndirectGlobalMemory(GlobalValue *GV) {
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if (AnalyzeUsesOfPointer(LI, ReadersWriters, ReadersWriters))
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if (AnalyzeUsesOfPointer(LI, ReadersWriters, ReadersWriters))
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return false; // Loaded pointer escapes.
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return false; // Loaded pointer escapes.
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// TODO: Could try some IP mod/ref of the loaded pointer.
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// TODO: Could try some IP mod/ref of the loaded pointer.
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} else if (StoreInst *SI = dyn_cast<StoreInst>(*I)) {
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} else if (StoreInst *SI = dyn_cast<StoreInst>(U)) {
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// Storing the global itself.
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// Storing the global itself.
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if (SI->getOperand(0) == GV) return false;
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if (SI->getOperand(0) == GV) return false;
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