diff options
Diffstat (limited to 'lib/Target/X86/X86ScheduleAtom.td')
| -rw-r--r-- | lib/Target/X86/X86ScheduleAtom.td | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/Target/X86/X86ScheduleAtom.td b/lib/Target/X86/X86ScheduleAtom.td index ba72f29..3256ee7 100644 --- a/lib/Target/X86/X86ScheduleAtom.td +++ b/lib/Target/X86/X86ScheduleAtom.td @@ -535,5 +535,9 @@ 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 Itineraries = AtomItineraries; } |