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

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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
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38
lib/Target/SystemZ/SystemZInstrVector.td
View File

@ -56,17 +56,28 @@ def : VectorExtractSubreg<v4i32, VLGVF>;
//===----------------------------------------------------------------------===//
let Predicates = [FeatureVector] in {
// Generate byte mask.
def VZERO : InherentVRIa<"vzero", 0xE744, 0>;
def VONE : InherentVRIa<"vone", 0xE744, 0xffff>;
def VGBM : UnaryVRIa<"vgbm", 0xE744, z_byte_mask, v128b, imm32zx16>;
let hasSideEffects = 0, isAsCheapAsAMove = 1, isMoveImm = 1,
isReMaterializable = 1 in {
// Generate mask.
def VGM : BinaryVRIbGeneric<"vgm", 0xE746>;
def VGMB : BinaryVRIb<"vgmb", 0xE746, z_rotate_mask, v128b, 0>;
def VGMH : BinaryVRIb<"vgmh", 0xE746, z_rotate_mask, v128h, 1>;
def VGMF : BinaryVRIb<"vgmf", 0xE746, z_rotate_mask, v128f, 2>;
def VGMG : BinaryVRIb<"vgmg", 0xE746, z_rotate_mask, v128g, 3>;
// Generate byte mask.
def VZERO : InherentVRIa<"vzero", 0xE744, 0>;
def VONE : InherentVRIa<"vone", 0xE744, 0xffff>;
def VGBM : UnaryVRIa<"vgbm", 0xE744, z_byte_mask, v128b, imm32zx16>;
// Generate mask.
def VGM : BinaryVRIbGeneric<"vgm", 0xE746>;
def VGMB : BinaryVRIb<"vgmb", 0xE746, z_rotate_mask, v128b, 0>;
def VGMH : BinaryVRIb<"vgmh", 0xE746, z_rotate_mask, v128h, 1>;
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.
//
@ -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