Handle sqrt in CannotBeNegativeZero. absf and absl
appear to be misspellings, removed in favor of fabs*.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82796 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/ValueTracking.cpp b/lib/Analysis/ValueTracking.cpp
index 9494a2f..baa347a 100644
--- a/lib/Analysis/ValueTracking.cpp
+++ b/lib/Analysis/ValueTracking.cpp
@@ -840,9 +840,13 @@
if (F->isDeclaration()) {
// abs(x) != -0.0
if (F->getName() == "abs") return true;
- // abs[lf](x) != -0.0
- if (F->getName() == "absf") return true;
- if (F->getName() == "absl") return true;
+ // fabs[lf](x) != -0.0
+ if (F->getName() == "fabs") return true;
+ if (F->getName() == "fabsf") return true;
+ if (F->getName() == "fabsl") return true;
+ if (F->getName() == "sqrt" || F->getName() == "sqrtf" ||
+ F->getName() == "sqrtl")
+ return CannotBeNegativeZero(CI->getOperand(1), Depth+1);
}
}