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Small cleanups:

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- use SmallVectorImpl& for the function argument.
  - ignore the operands on the GEP, even if they aren't constant! Much as we
    pretend the malloc succeeds, we pretend that malloc + whatever-you-GEP'd-by
    is not null. It's magic!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136757 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nick Lewycky
2011-08-03 01:11:40 +00:00
parent d0c0d44459
commit dbd2255091
1 changed files with 2 additions and 3 deletions
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5
lib/Transforms/InstCombine/InstructionCombining.cpp
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@ -1044,7 +1044,7 @@ Instruction *InstCombiner::visitGetElementPtrInst(GetElementPtrInst &GEP) {
static bool IsOnlyNullComparedAndFreed(Value *V, SmallVector<WeakVH, 64> &Users, static bool IsOnlyNullComparedAndFreed(Value *V, SmallVectorImpl<WeakVH> &Users,
int Depth = 0) { int Depth = 0) {
if (Depth == 8) if (Depth == 8)
return false; return false;
@ -1069,8 +1069,7 @@ static bool IsOnlyNullComparedAndFreed(Value *V, SmallVector<WeakVH, 64> &Users,
} }
} }
if (GetElementPtrInst *GEPI = dyn_cast<GetElementPtrInst>(U)) { if (GetElementPtrInst *GEPI = dyn_cast<GetElementPtrInst>(U)) {
if (GEPI->hasAllZeroIndices() && if (IsOnlyNullComparedAndFreed(GEPI, Users, Depth+1)) {
IsOnlyNullComparedAndFreed(GEPI, Users, Depth+1)) {
Users.push_back(GEPI); Users.push_back(GEPI);
continue; continue;
} }