[X86][Haswell][SchedModel] Add architecture specific scheduling models.

[oota-llvm.git] / lib / Target / X86 / X86ScheduleSLM.td

diff --git a/lib/Target/X86/X86ScheduleSLM.td b/lib/Target/X86/X86ScheduleSLM.td
index 509f892deb078ff2fc7546a657111b33987fd667..90d85878812462efa8eb3c2defa508f08542f7f7 100644 (file)
--- a/lib/Target/X86/X86ScheduleSLM.td
+++ b/lib/Target/X86/X86ScheduleSLM.td
@@ -19,6 +19,10 @@ def SLMModel : SchedMachineModel {
   let MicroOpBufferSize = 32; // Based on the reorder buffer.
   let LoadLatency = 3;
   let MispredictPenalty = 10;
+  let PostRAScheduler = 1;
+
+  // For small loops, expand by a small factor to hide the backedge cost.
+  let LoopMicroOpBufferSize = 10;
 
   // FIXME: SSE4 is unimplemented. This flag is set to allow
   // the scheduler to assign a default model to unrecognized opcodes.