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Strip out and simplify some code. This also fixes the regression last
night compiling cfrac. It did not realize that code like this: int G; int *H = &G; takes the address of G. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14973 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -44,16 +44,9 @@ Pass *llvm::createGlobalConstifierPass() { return new Constifier(); }
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///
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static bool isStoredThrough(Value *V) {
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for (Value::use_iterator UI = V->use_begin(), E = V->use_end(); UI != E; ++UI)
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if (Constant *C = dyn_cast<Constant>(*UI)) {
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if (ConstantExpr *CE = dyn_cast<ConstantExpr>(C)) {
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if (isStoredThrough(CE))
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return true;
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} else if (GlobalValue *GV = dyn_cast<GlobalValue>(C)) {
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if (isStoredThrough(GV)) return true;
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} else {
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// Must be an element of a constant array or something.
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if (ConstantExpr *CE = dyn_cast<ConstantExpr>(*UI)) {
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if (isStoredThrough(CE))
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return true;
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}
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} else if (Instruction *I = dyn_cast<Instruction>(*UI)) {
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if (I->getOpcode() == Instruction::GetElementPtr) {
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if (isStoredThrough(I)) return true;
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