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llvm-svn: 174028
This commit is contained in:
Dan Gohman 2013-01-31 02:45:26 +00:00
parent 6968f40e37
commit c75c606cf7
1 changed files with 4 additions and 0 deletions
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4
lib/Analysis/InstructionSimplify.cpp
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@ -663,6 +663,10 @@ Value *llvm::SimplifyAddInst(Value *Op0, Value *Op1, bool isNSW, bool isNUW,
/// accumulates the total constant offset applied in the returned constant. It
/// returns 0 if V is not a pointer, and returns the constant '0' if there are
/// no constant offsets applied.
///
/// This is very similar to GetPointerBaseWithConstantOffset except it doesn't
/// follow non-inbounds geps. This allows it to remain usable for icmp ult/etc.
/// folding.
static Constant *stripAndComputeConstantOffsets(const DataLayout &TD,
Value *&V) {
assert(V->getType()->isPointerTy());