Add support to model pipeline bypass / forwarding.

[oota-llvm.git] / lib / Target / ARM / ARMScheduleA8.td

diff --git a/lib/Target/ARM/ARMScheduleA8.td b/lib/Target/ARM/ARMScheduleA8.td
index 3cbfe751f533452c7b37e8dbb3582aaecc4529c6..6bec63734d0c5acff20f5c8dfa5e5925a6a945cd 100644 (file)
--- a/lib/Target/ARM/ARMScheduleA8.td
+++ b/lib/Target/ARM/ARMScheduleA8.td
@@ -25,7 +25,8 @@ def A8_NLSPipe : FuncUnit; // NEON LS pipe
 // Dual issue pipeline represented by A8_Pipe0 | A8_Pipe1
 //
 def CortexA8Itineraries : ProcessorItineraries<
-  [A8_Issue, A8_Pipe0, A8_Pipe1, A8_LdSt0, A8_LdSt1, A8_NPipe, A8_NLSPipe], [
+  [A8_Issue, A8_Pipe0, A8_Pipe1, A8_LdSt0, A8_LdSt1, A8_NPipe, A8_NLSPipe],
+  [], [
   // Two fully-pipelined integer ALU pipelines
   //
   // No operand cycles
@@ -40,7 +41,10 @@ def CortexA8Itineraries : ProcessorItineraries<
   // Unary Instructions that produce a result
   InstrItinData<IIC_iUNAr , [InstrStage<1, [A8_Pipe0, A8_Pipe1]>], [2, 2]>,
   InstrItinData<IIC_iUNAsi, [InstrStage<1, [A8_Pipe0, A8_Pipe1]>], [2, 1]>,
-  InstrItinData<IIC_iUNAsr, [InstrStage<1, [A8_Pipe0, A8_Pipe1]>], [2, 1, 1]>,
+  //
+  // Zero and sign extension instructions
+  InstrItinData<IIC_iEXTr , [InstrStage<1, [A8_Pipe0, A8_Pipe1]>], [1, 1]>,
+  InstrItinData<IIC_iEXTAr, [InstrStage<1, [A8_Pipe0, A8_Pipe1]>], [2, 2, 1]>,
   //
   // Compare instructions
   InstrItinData<IIC_iCMPi , [InstrStage<1, [A8_Pipe0, A8_Pipe1]>], [2]>,