RPCS3/llvm
1
0
Fork 0
mirror of https://github.com/RPCS3/llvm.git synced 2025-02-12 05:40:30 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

[SystemZ] Mark vector immediate load instructions with useful flags.

Browse Source 
Vector immediate load instructions should have the isAsCheapAsAMove, isMoveImm
and isReMaterializable flags set. With them, these instruction will get
hoisted out of loops.

Review: Ulrich Weigand

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292790 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jonas Paulsson 2017-01-23 14:09:58 +00:00
parent 9c3e633489
commit d7599ee3b1
2 changed files with 22 additions and 18 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
lib/Target/SystemZ/SystemZInstrVector.td
View File

@ -56,6 +56,9 @@ def : VectorExtractSubreg<v4i32, VLGVF>;
//===----------------------------------------------------------------------===//
let Predicates = [FeatureVector] in {
let hasSideEffects = 0, isAsCheapAsAMove = 1, isMoveImm = 1,
isReMaterializable = 1 in {
// Generate byte mask.
def VZERO : InherentVRIa<"vzero", 0xE744, 0>;
def VONE : InherentVRIa<"vone", 0xE744, 0xffff>;
@ -68,6 +71,14 @@ let Predicates = [FeatureVector] in {
def VGMF : BinaryVRIb<"vgmf", 0xE746, z_rotate_mask, v128f, 2>;
def VGMG : BinaryVRIb<"vgmg", 0xE746, z_rotate_mask, v128g, 3>;
// Replicate immediate.
def VREPI : UnaryVRIaGeneric<"vrepi", 0xE745, imm32sx16>;
def VREPIB : UnaryVRIa<"vrepib", 0xE745, z_replicate, v128b, imm32sx16, 0>;
def VREPIH : UnaryVRIa<"vrepih", 0xE745, z_replicate, v128h, imm32sx16, 1>;
def VREPIF : UnaryVRIa<"vrepif", 0xE745, z_replicate, v128f, imm32sx16, 2>;
def VREPIG : UnaryVRIa<"vrepig", 0xE745, z_replicate, v128g, imm32sx16, 3>;
}
// Load element immediate.
//
// We want these instructions to be used ahead of VLVG* where possible.
@ -86,13 +97,6 @@ let Predicates = [FeatureVector] in {
def VLEIG : TernaryVRIa<"vleig", 0xE742, z_vector_insert,
v128g, v128g, imm64sx16, imm32zx1>;
}
// Replicate immediate.
def VREPI : UnaryVRIaGeneric<"vrepi", 0xE745, imm32sx16>;
def VREPIB : UnaryVRIa<"vrepib", 0xE745, z_replicate, v128b, imm32sx16, 0>;
def VREPIH : UnaryVRIa<"vrepih", 0xE745, z_replicate, v128h, imm32sx16, 1>;
def VREPIF : UnaryVRIa<"vrepif", 0xE745, z_replicate, v128f, imm32sx16, 2>;
def VREPIG : UnaryVRIa<"vrepig", 0xE745, z_replicate, v128g, imm32sx16, 3>;
}
//===----------------------------------------------------------------------===//

2
lib/Target/SystemZ/SystemZScheduleZ13.td
View File

@ -855,8 +855,8 @@ def : InstRW<[VecXsPm], (instregex "VZERO$")>;
def : InstRW<[VecXsPm], (instregex "VONE$")>;
def : InstRW<[VecXsPm], (instregex "VGBM$")>;
def : InstRW<[VecXsPm], (instregex "VGM(B|F|G|H)?$")>;
def : InstRW<[VecXsPm], (instregex "VLEI(B|F|G|H)$")>;
def : InstRW<[VecXsPm], (instregex "VREPI(B|F|G|H)?$")>;
def : InstRW<[VecXsPm], (instregex "VLEI(B|F|G|H)$")>;
//===----------------------------------------------------------------------===//
// Vector: Loads