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Remove some dead code and tidy things up now that vectors use ConstantDataVector

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instead of always using ConstantVector.

llvm-svn: 149912
This commit is contained in:
Chris Lattner
2012-02-06 21:56:39 +00:00
parent b03c224e10
commit 8213c8af29
9 changed files with 40 additions and 129 deletions
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17
llvm/lib/Target/TargetLoweringObjectFile.cpp
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@@ -77,23 +77,6 @@ static bool isSuitableForBSS(const GlobalVariable *GV, bool NoZerosInBSS) {
/// than ConstantDataSequential::isString because we allow 2 & 4 byte strings.
static bool IsNullTerminatedString(const Constant *C) {
// First check: is we have constant array terminated with zero
if (const ConstantArray *CVA = dyn_cast<ConstantArray>(C)) {
ArrayType *ATy = cast<ArrayType>(C->getType());
if (ATy->getNumElements() == 0) return false;
ConstantInt *Null =
dyn_cast<ConstantInt>(CVA->getOperand(ATy->getNumElements()-1));
if (Null == 0 || !Null->isZero())
return false; // Not null terminated.
// Verify that the null doesn't occur anywhere else in the string.
for (unsigned i = 0, e = ATy->getNumElements()-1; i != e; ++i)
// Reject constantexpr elements etc.
if (!isa<ConstantInt>(CVA->getOperand(i)) ||
CVA->getOperand(i) == Null)
return false;
return true;
}
if (const ConstantDataSequential *CDS = dyn_cast<ConstantDataSequential>(C)) {
unsigned NumElts = CDS->getNumElements();
assert(NumElts != 0 && "Can't have an empty CDS");