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Strip out and simplify some code. This also fixes the regression last

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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
This commit is contained in:
Chris Lattner 2004-07-18 19:56:20 +00:00
parent 9db07b9307
commit 96940cb522
1 changed files with 2 additions and 9 deletions
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11
lib/Transforms/IPO/GlobalOpt.cpp
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@ -44,16 +44,9 @@ Pass *llvm::createGlobalConstifierPass() { return new Constifier(); }
///
static bool isStoredThrough(Value *V) {
for (Value::use_iterator UI = V->use_begin(), E = V->use_end(); UI != E; ++UI)
if (Constant *C = dyn_cast<Constant>(*UI)) {
if (ConstantExpr *CE = dyn_cast<ConstantExpr>(C)) {
if (isStoredThrough(CE))
return true;
} else if (GlobalValue *GV = dyn_cast<GlobalValue>(C)) {
if (isStoredThrough(GV)) return true;
} else {
// Must be an element of a constant array or something.
if (ConstantExpr *CE = dyn_cast<ConstantExpr>(*UI)) {
if (isStoredThrough(CE))
return true;
}
} else if (Instruction *I = dyn_cast<Instruction>(*UI)) {
if (I->getOpcode() == Instruction::GetElementPtr) {
if (isStoredThrough(I)) return true;