[llvm-commits] [llvm] r57871 - /llvm/trunk/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp

[Dan Gohman]

Author: djg
Date: Mon Oct 20 22:12:54 2008
New Revision: 57871

URL: http://llvm.org/viewvc/llvm-project?rev=57871&view=rev
Log:
Make the NaN test come second, heuristically assuming
that NaNs are less common.

Modified:
    llvm/trunk/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp

Modified: llvm/trunk/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp?rev=57871&r1=57870&r2=57871&view=diff

==============================================================================
--- llvm/trunk/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp (original)
+++ llvm/trunk/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp Mon Oct 20 22:12:54 2008
@@ -4901,18 +4901,18 @@
     unsigned Opc = 0;
     switch (CCCode) {
     default: assert(0 && "Don't know how to expand this condition!"); abort();
-    case ISD::SETOEQ: CC1 = ISD::SETO;  CC2 = ISD::SETEQ; Opc = ISD::AND; break;
-    case ISD::SETOGT: CC1 = ISD::SETO;  CC2 = ISD::SETGT; Opc = ISD::AND; break;
-    case ISD::SETOGE: CC1 = ISD::SETO;  CC2 = ISD::SETGE; Opc = ISD::AND; break;
-    case ISD::SETOLT: CC1 = ISD::SETO;  CC2 = ISD::SETLT; Opc = ISD::AND; break;
-    case ISD::SETOLE: CC1 = ISD::SETO;  CC2 = ISD::SETLE; Opc = ISD::AND; break;
-    case ISD::SETONE: CC1 = ISD::SETO;  CC2 = ISD::SETNE; Opc = ISD::AND; break;
-    case ISD::SETUEQ: CC1 = ISD::SETUO; CC2 = ISD::SETEQ; Opc = ISD::OR;  break;
-    case ISD::SETUGT: CC1 = ISD::SETUO; CC2 = ISD::SETGT; Opc = ISD::OR;  break;
-    case ISD::SETUGE: CC1 = ISD::SETUO; CC2 = ISD::SETGE; Opc = ISD::OR;  break;
-    case ISD::SETULT: CC1 = ISD::SETUO; CC2 = ISD::SETLT; Opc = ISD::OR;  break;
-    case ISD::SETULE: CC1 = ISD::SETUO; CC2 = ISD::SETLE; Opc = ISD::OR;  break;
-    case ISD::SETUNE: CC1 = ISD::SETUO; CC2 = ISD::SETNE; Opc = ISD::OR;  break;
+    case ISD::SETOEQ: CC1 = ISD::SETEQ; CC2 = ISD::SETO;  Opc = ISD::AND; break;
+    case ISD::SETOGT: CC1 = ISD::SETGT; CC2 = ISD::SETO;  Opc = ISD::AND; break;
+    case ISD::SETOGE: CC1 = ISD::SETGE; CC2 = ISD::SETO;  Opc = ISD::AND; break;
+    case ISD::SETOLT: CC1 = ISD::SETLT; CC2 = ISD::SETO;  Opc = ISD::AND; break;
+    case ISD::SETOLE: CC1 = ISD::SETLE; CC2 = ISD::SETO;  Opc = ISD::AND; break;
+    case ISD::SETONE: CC1 = ISD::SETNE; CC2 = ISD::SETO;  Opc = ISD::AND; break;
+    case ISD::SETUEQ: CC1 = ISD::SETEQ; CC2 = ISD::SETUO; Opc = ISD::OR;  break;
+    case ISD::SETUGT: CC1 = ISD::SETGT; CC2 = ISD::SETUO; Opc = ISD::OR;  break;
+    case ISD::SETUGE: CC1 = ISD::SETGE; CC2 = ISD::SETUO; Opc = ISD::OR;  break;
+    case ISD::SETULT: CC1 = ISD::SETLT; CC2 = ISD::SETUO; Opc = ISD::OR;  break;
+    case ISD::SETULE: CC1 = ISD::SETLE; CC2 = ISD::SETUO; Opc = ISD::OR;  break;
+    case ISD::SETUNE: CC1 = ISD::SETNE; CC2 = ISD::SETUO; Opc = ISD::OR;  break;
     // FIXME: Implement more expansions.
     }