// Alias instructions that map fld0 to xorps for sse or vxorps for avx.
// This is expanded by ExpandPostRAPseudos.
let isReMaterializable = 1, isAsCheapAsAMove = 1, canFoldAsLoad = 1,
- isPseudo = 1 in {
+ isPseudo = 1, SchedRW = [WriteZero] in {
def FsFLD0SS : I<0, Pseudo, (outs FR32:$dst), (ins), "",
[(set FR32:$dst, fp32imm0)]>, Requires<[HasSSE1]>;
def FsFLD0SD : I<0, Pseudo, (outs FR64:$dst), (ins), "",
// We set canFoldAsLoad because this can be converted to a constant-pool
// load of an all-zeros value if folding it would be beneficial.
let isReMaterializable = 1, isAsCheapAsAMove = 1, canFoldAsLoad = 1,
- isPseudo = 1 in {
+ isPseudo = 1, SchedRW = [WriteZero] in {
def V_SET0 : I<0, Pseudo, (outs VR128:$dst), (ins), "",
[(set VR128:$dst, (v4f32 immAllZerosV))]>;
}
// at the rename stage without using any execution unit, so SET0PSY
// and SET0PDY can be used for vector int instructions without penalty
let isReMaterializable = 1, isAsCheapAsAMove = 1, canFoldAsLoad = 1,
- isPseudo = 1, Predicates = [HasAVX] in {
+ isPseudo = 1, Predicates = [HasAVX], SchedRW = [WriteZero] in {
def AVX_SET0 : I<0, Pseudo, (outs VR256:$dst), (ins), "",
[(set VR256:$dst, (v8f32 immAllZerosV))]>;
}
// We set canFoldAsLoad because this can be converted to a constant-pool
// load of an all-ones value if folding it would be beneficial.
let isReMaterializable = 1, isAsCheapAsAMove = 1, canFoldAsLoad = 1,
- isPseudo = 1 in {
+ isPseudo = 1, SchedRW = [WriteZero] in {
def V_SETALLONES : I<0, Pseudo, (outs VR128:$dst), (ins), "",
[(set VR128:$dst, (v4i32 immAllOnesV))]>;
let Predicates = [HasAVX2] in