maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity

Add some crude itin approximation for VFP load / stores on A9 

llvm-svn: 100671
This commit is contained in:
Anton Korobeynikov 2010-04-07 18:22:03 +00:00
parent d351104f19
commit 32457d6c5e
1 changed files with 54 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

54
llvm/lib/Target/ARM/ARMScheduleV7.td
View File

@ -804,6 +804,60 @@ def CortexA9Itineraries : ProcessorItineraries<[
InstrStage<2, [FU_DRegsN], 0, Reserved>,
InstrStage<1, [FU_Pipe0, FU_Pipe1]>,
InstrStage<1, [FU_NPipe]>], [1, 1, 1]>,
//
// Single-precision FP Load
// use FU_Issue to enforce the 1 load/store per cycle limit
InstrItinData<IIC_fpLoad32, [InstrStage<1, [FU_DRegsVFP], 0, Required>,
InstrStage<2, [FU_DRegsN], 0, Reserved>,
InstrStage<1, [FU_Issue], 0>,
InstrStage<1, [FU_Pipe0, FU_Pipe1]>,
InstrStage<1, [FU_LdSt0], 0>,
InstrStage<1, [FU_NPipe]>]>,
//
// Double-precision FP Load
// use FU_Issue to enforce the 1 load/store per cycle limit
InstrItinData<IIC_fpLoad64, [InstrStage<1, [FU_DRegsVFP], 0, Required>,
InstrStage<2, [FU_DRegsN], 0, Reserved>,
InstrStage<1, [FU_Issue], 0>,
InstrStage<1, [FU_Pipe0, FU_Pipe1]>,
InstrStage<1, [FU_LdSt0], 0>,
InstrStage<1, [FU_NPipe]>]>,
//
// FP Load Multiple
// use FU_Issue to enforce the 1 load/store per cycle limit
InstrItinData<IIC_fpLoadm, [InstrStage<1, [FU_DRegsVFP], 0, Required>,
InstrStage<2, [FU_DRegsN], 0, Reserved>,
InstrStage<1, [FU_Issue], 0>,
InstrStage<1, [FU_Pipe0, FU_Pipe1]>,
InstrStage<1, [FU_LdSt0], 0>,
InstrStage<1, [FU_NPipe]>]>,
//
// Single-precision FP Store
// use FU_Issue to enforce the 1 load/store per cycle limit
InstrItinData<IIC_fpStore32,[InstrStage<1, [FU_DRegsVFP], 0, Required>,
InstrStage<2, [FU_DRegsN], 0, Reserved>,
InstrStage<1, [FU_Issue], 0>,
InstrStage<1, [FU_Pipe0, FU_Pipe1]>,
InstrStage<1, [FU_LdSt0], 0>,
InstrStage<1, [FU_NPipe]>]>,
//
// Double-precision FP Store
// use FU_Issue to enforce the 1 load/store per cycle limit
InstrItinData<IIC_fpStore64,[InstrStage<1, [FU_DRegsVFP], 0, Required>,
InstrStage<2, [FU_DRegsN], 0, Reserved>,
InstrStage<1, [FU_Issue], 0>,
InstrStage<1, [FU_Pipe0, FU_Pipe1]>,
InstrStage<1, [FU_LdSt0], 0>,
InstrStage<1, [FU_NPipe]>]>,
//
// FP Store Multiple
// use FU_Issue to enforce the 1 load/store per cycle limit
InstrItinData<IIC_fpStorem, [InstrStage<1, [FU_DRegsVFP], 0, Required>,
InstrStage<2, [FU_DRegsN], 0, Reserved>,
InstrStage<1, [FU_Issue], 0>,
InstrStage<1, [FU_Pipe0, FU_Pipe1]>,
InstrStage<1, [FU_LdSt0], 0>,
InstrStage<1, [FU_NPipe]>]>,
// NEON
// Issue through integer pipeline, and execute in NEON unit.
// FIXME: Neon pipeline and LdSt unit are multiplexed.