Add a note about a cute little fabs optimization.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153543 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Benjamin Kramer 2012-03-27 22:42:42 +00:00
parent c8591a451a
commit f2fd23b062

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@ -2370,3 +2370,8 @@ unsigned foo(unsigned x, unsigned y) { return x > y && x != 0; }
should fold to x > y. should fold to x > y.
//===---------------------------------------------------------------------===// //===---------------------------------------------------------------------===//
int f(double x) { return __builtin_fabs(x) < 0.0; }
should fold to false.
//===---------------------------------------------------------------------===//