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reapply r101364, which has been backed out in r101368

Browse Source 
with a fix

rotate CallInst operands, i.e. move callee to the back
of the operand array

the motivation for this patch are laid out in my mail to llvm-commits:
more efficient access to operands and callee, faster callgraph-construction,
smaller compiler binary


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101397 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Gabor Greif
2010-04-15 20:51:13 +00:00
parent 83821c8941
commit 2ff961f668
43 changed files with 578 additions and 587 deletions
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4
lib/Analysis/ValueTracking.cpp
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@@ -953,7 +953,7 @@ bool llvm::CannotBeNegativeZero(const Value *V, unsigned Depth) {
if (const IntrinsicInst *II = dyn_cast<IntrinsicInst>(I))
// sqrt(-0.0) = -0.0, no other negative results are possible.
if (II->getIntrinsicID() == Intrinsic::sqrt)
return CannotBeNegativeZero(II->getOperand(1), Depth+1);
return CannotBeNegativeZero(II->getOperand(0), Depth+1);
if (const CallInst *CI = dyn_cast<CallInst>(I))
if (const Function *F = CI->getCalledFunction()) {
@@ -966,7 +966,7 @@ bool llvm::CannotBeNegativeZero(const Value *V, unsigned Depth) {
if (F->getName() == "fabsl") return true;
if (F->getName() == "sqrt" || F->getName() == "sqrtf" ||
F->getName() == "sqrtl")
return CannotBeNegativeZero(CI->getOperand(1), Depth+1);
return CannotBeNegativeZero(CI->getOperand(0), Depth+1);
}
}