[llvm-commits] [llvm] r142621 - /llvm/trunk/lib/Target/PowerPC/PPCInstrInfo.cpp

[Dan Gohman]

Author: djg
Date: Thu Oct 20 16:45:36 2011
New Revision: 142621

URL: http://llvm.org/viewvc/llvm-project?rev=142621&view=rev
Log:
Disable the PPC hazard recognizer. It currently only supports
top-down scheduling and top-down scheduling is going away.

Modified:
    llvm/trunk/lib/Target/PowerPC/PPCInstrInfo.cpp

Modified: llvm/trunk/lib/Target/PowerPC/PPCInstrInfo.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/PowerPC/PPCInstrInfo.cpp?rev=142621&r1=142620&r2=142621&view=diff
==============================================================================
--- llvm/trunk/lib/Target/PowerPC/PPCInstrInfo.cpp (original)
+++ llvm/trunk/lib/Target/PowerPC/PPCInstrInfo.cpp Thu Oct 20 16:45:36 2011
@@ -57,10 +57,16 @@
   unsigned Directive = TM->getSubtarget<PPCSubtarget>().getDarwinDirective();
   if (Directive == PPC::DIR_440) {
     const InstrItineraryData *II = TM->getInstrItineraryData();
-    return new PPCHazardRecognizer440(II, DAG);
+    // Disable the hazard recognizer for now, as it doesn't support
+    // bottom-up scheduling.
+    //return new PPCHazardRecognizer440(II, DAG);
+    return new ScheduleHazardRecognizer();
   }
   else {
-    return new PPCHazardRecognizer970(*TII);
+    // Disable the hazard recognizer for now, as it doesn't support
+    // bottom-up scheduling.
+    //return new PPCHazardRecognizer970(*TII);
+    return new ScheduleHazardRecognizer();
   }
 }