[llvm-commits] [llvm] r153845 - in /llvm/trunk/lib/Target/PowerPC: PPCISelLowering.cpp PPCISelLowering.h

[Hal Finkel]

Author: hfinkel
Date: Sun Apr  1 14:23:08 2012
New Revision: 153845

URL: http://llvm.org/viewvc/llvm-project?rev=153845&view=rev
Log:
Set the default PPC node scheduling preference to ILP (for the embedded cores).

The 440 and A2 cores have detailed itineraries, and this allows them to be
fully used to maximize throughput.

Modified:
    llvm/trunk/lib/Target/PowerPC/PPCISelLowering.cpp
    llvm/trunk/lib/Target/PowerPC/PPCISelLowering.h

Modified: llvm/trunk/lib/Target/PowerPC/PPCISelLowering.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/PowerPC/PPCISelLowering.cpp?rev=153845&r1=153844&r2=153845&view=diff
==============================================================================
--- llvm/trunk/lib/Target/PowerPC/PPCISelLowering.cpp (original)
+++ llvm/trunk/lib/Target/PowerPC/PPCISelLowering.cpp Sun Apr  1 14:23:08 2012
@@ -5837,3 +5837,12 @@
     return MVT::i32;
   }
 }
+
+Sched::Preference PPCTargetLowering::getSchedulingPreference(SDNode *N) const {
+  unsigned Directive = PPCSubTarget.getDarwinDirective();
+  if (Directive == PPC::DIR_440 || Directive == PPC::DIR_A2)
+    return Sched::ILP;
+
+  return TargetLowering::getSchedulingPreference(N);
+}
+

Modified: llvm/trunk/lib/Target/PowerPC/PPCISelLowering.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/PowerPC/PPCISelLowering.h?rev=153845&r1=153844&r2=153845&view=diff
==============================================================================
--- llvm/trunk/lib/Target/PowerPC/PPCISelLowering.h (original)
+++ llvm/trunk/lib/Target/PowerPC/PPCISelLowering.h Sun Apr  1 14:23:08 2012
@@ -281,6 +281,7 @@
     bool SelectAddressRegImmShift(SDValue N, SDValue &Disp, SDValue &Base,
                                   SelectionDAG &DAG) const;
 
+    Sched::Preference getSchedulingPreference(SDNode *N) const;
 
     /// LowerOperation - Provide custom lowering hooks for some operations.
     ///