R600/SI: Try to keep i32 mul on SALU

[oota-llvm.git] / lib / Target / X86 / X86ScheduleAtom.td

diff --git a/lib/Target/X86/X86ScheduleAtom.td b/lib/Target/X86/X86ScheduleAtom.td
index ba72f29910fefe211940cf562f42392517c6969e..c8820aa2d8dfd2d56c223a9d590ee7d8024aa329 100644 (file)
--- a/lib/Target/X86/X86ScheduleAtom.td
+++ b/lib/Target/X86/X86ScheduleAtom.td
@@ -535,5 +535,10 @@ def AtomModel : SchedMachineModel {
   let LoadLatency = 3; // Expected cycles, may be overriden by OperandCycles.
   let HighLatency = 30;// Expected, may be overriden by OperandCycles.
 
+  // On the Atom, the throughput for taken branches is 2 cycles. For small
+  // simple loops, expand by a small factor to hide the backedge cost.
+  let LoopMicroOpBufferSize = 10;
+  let PostRAScheduler = 1;
+
   let Itineraries = AtomItineraries;
 }