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Replace a bunch of complex ConstantPointerRef referring code with simple

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code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14785 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2004-07-13 06:58:07 +00:00
parent 42df6d1396
commit 38ab6bff5d
1 changed files with 3 additions and 11 deletions
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14
lib/AsmParser/llvmAsmParser.y
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@ -118,17 +118,9 @@ static struct PerModuleInfo {
if (I != GlobalRefs.end()) {
GlobalValue *OldGV = I->second; // Get the placeholder...
I->first.second.destroy(); // Free string memory if necessary
// Loop over all of the uses of the GlobalValue. The only thing they are
// allowed to be is ConstantPointerRef's.
assert(OldGV->hasOneUse() && "Only one reference should exist!");
User *U = OldGV->use_back(); // Must be a ConstantPointerRef...
ConstantPointerRef *CPR = cast<ConstantPointerRef>(U);
// Change the const pool reference to point to the real global variable
// now. This should drop a use from the OldGV.
CPR->replaceUsesOfWithOnConstant(OldGV, GV);
assert(OldGV->use_empty() && "All uses should be gone now!");
// Replace all uses of the placeholder with the new GV
OldGV->replaceAllUsesWith(GV);
// Remove OldGV from the module...
if (GlobalVariable *GVar = dyn_cast<GlobalVariable>(OldGV))