[llvm] r265447 - [X86] Simplify early-exit check. NFC.

[Ahmed Bougacha via llvm-commits]

Author: ab
Date: Tue Apr  5 15:02:22 2016
New Revision: 265447

URL: http://llvm.org/viewvc/llvm-project?rev=265447&view=rev
Log:
[X86] Simplify early-exit check. NFC.

Modified:
    llvm/trunk/lib/Target/X86/X86ISelLowering.cpp

Modified: llvm/trunk/lib/Target/X86/X86ISelLowering.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86ISelLowering.cpp?rev=265447&r1=265446&r2=265447&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86ISelLowering.cpp (original)
+++ llvm/trunk/lib/Target/X86/X86ISelLowering.cpp Tue Apr  5 15:02:22 2016
@@ -26150,10 +26150,10 @@ static SDValue combineSelect(SDNode *N,
 // where Op could be BRCOND or CMOV.
 //
 static SDValue checkBoolTestSetCCCombine(SDValue Cmp, X86::CondCode &CC) {
-  // Quit if not CMP and SUB with its value result used.
-  if (Cmp.getOpcode() != X86ISD::CMP &&
-      (Cmp.getOpcode() != X86ISD::SUB || Cmp.getNode()->hasAnyUseOfValue(0)))
-      return SDValue();
+  // This combine only operates on CMP-like nodes.
+  if (!(Cmp.getOpcode() == X86ISD::CMP ||
+        (Cmp.getOpcode() == X86ISD::SUB && !Cmp->hasAnyUseOfValue(0))))
+    return SDValue();
 
   // Quit if not used as a boolean value.
   if (CC != X86::COND_E && CC != X86::COND_NE)