[llvm] r303522 - [KnownBits] Use isNegative/isNonNegative to shorten some code. NFC

[Craig Topper via llvm-commits]

Author: ctopper
Date: Sun May 21 19:49:33 2017
New Revision: 303522

URL: http://llvm.org/viewvc/llvm-project?rev=303522&view=rev
Log:
[KnownBits] Use isNegative/isNonNegative to shorten some code. NFC

Modified:
    llvm/trunk/lib/Transforms/InstCombine/InstCombineAddSub.cpp

Modified: llvm/trunk/lib/Transforms/InstCombine/InstCombineAddSub.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/InstCombine/InstCombineAddSub.cpp?rev=303522&r1=303521&r2=303522&view=diff
==============================================================================
--- llvm/trunk/lib/Transforms/InstCombine/InstCombineAddSub.cpp (original)
+++ llvm/trunk/lib/Transforms/InstCombine/InstCombineAddSub.cpp Sun May 21 19:49:33 2017
@@ -869,8 +869,8 @@ bool InstCombiner::WillNotOverflowSigned
 
   // Subtraction of two 2's complement numbers having identical signs will
   // never overflow.
-  if ((LHSKnown.One[BitWidth - 1] && RHSKnown.One[BitWidth - 1]) ||
-      (LHSKnown.Zero[BitWidth - 1] && RHSKnown.Zero[BitWidth - 1]))
+  if ((LHSKnown.isNegative() && RHSKnown.isNegative()) ||
+      (LHSKnown.isNonNegative() && RHSKnown.isNonNegative()))
     return true;
 
   // TODO: implement logic similar to checkRippleForAdd