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llvm/lib/Target/X86/X86InstrShiftRotate.td

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//===-- X86InstrShiftRotate.td - Shift and Rotate Instrs ---*- tablegen -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file describes the shift and rotate instructions.
//
//===----------------------------------------------------------------------===//
// FIXME: Someone needs to smear multipattern goodness all over this file.
let Defs = [EFLAGS] in {
let Constraints = "$src1 = $dst", SchedRW = [WriteShift] in {
let Uses = [CL] in {
def SHL8rCL : I<0xD2, MRM4r, (outs GR8 :$dst), (ins GR8 :$src1),
"shl{b}\t{%cl, $dst|$dst, cl}",
[(set GR8:$dst, (shl GR8:$src1, CL))], IIC_SR>;
def SHL16rCL : I<0xD3, MRM4r, (outs GR16:$dst), (ins GR16:$src1),
"shl{w}\t{%cl, $dst|$dst, cl}",
[(set GR16:$dst, (shl GR16:$src1, CL))], IIC_SR>, OpSize16;
def SHL32rCL : I<0xD3, MRM4r, (outs GR32:$dst), (ins GR32:$src1),
"shl{l}\t{%cl, $dst|$dst, cl}",
[(set GR32:$dst, (shl GR32:$src1, CL))], IIC_SR>, OpSize32;
def SHL64rCL : RI<0xD3, MRM4r, (outs GR64:$dst), (ins GR64:$src1),
"shl{q}\t{%cl, $dst|$dst, cl}",
[(set GR64:$dst, (shl GR64:$src1, CL))], IIC_SR>;
} // Uses = [CL]
def SHL8ri : Ii8<0xC0, MRM4r, (outs GR8 :$dst), (ins GR8 :$src1, i8imm:$src2),
"shl{b}\t{$src2, $dst|$dst, $src2}",
[(set GR8:$dst, (shl GR8:$src1, (i8 imm:$src2)))], IIC_SR>;
let isConvertibleToThreeAddress = 1 in { // Can transform into LEA.
def SHL16ri : Ii8<0xC1, MRM4r, (outs GR16:$dst), (ins GR16:$src1, i8imm:$src2),
"shl{w}\t{$src2, $dst|$dst, $src2}",
[(set GR16:$dst, (shl GR16:$src1, (i8 imm:$src2)))], IIC_SR>,
OpSize16;
def SHL32ri : Ii8<0xC1, MRM4r, (outs GR32:$dst), (ins GR32:$src1, i8imm:$src2),
"shl{l}\t{$src2, $dst|$dst, $src2}",
[(set GR32:$dst, (shl GR32:$src1, (i8 imm:$src2)))], IIC_SR>,
OpSize32;
def SHL64ri : RIi8<0xC1, MRM4r, (outs GR64:$dst),
(ins GR64:$src1, i8imm:$src2),
"shl{q}\t{$src2, $dst|$dst, $src2}",
[(set GR64:$dst, (shl GR64:$src1, (i8 imm:$src2)))],
IIC_SR>;
// NOTE: We don't include patterns for shifts of a register by one, because
// 'add reg,reg' is cheaper (and we have a Pat pattern for shift-by-one).
let hasSideEffects = 0 in {
def SHL8r1 : I<0xD0, MRM4r, (outs GR8:$dst), (ins GR8:$src1),
"shl{b}\t$dst", [], IIC_SR>;
def SHL16r1 : I<0xD1, MRM4r, (outs GR16:$dst), (ins GR16:$src1),
"shl{w}\t$dst", [], IIC_SR>, OpSize16;
def SHL32r1 : I<0xD1, MRM4r, (outs GR32:$dst), (ins GR32:$src1),
"shl{l}\t$dst", [], IIC_SR>, OpSize32;
def SHL64r1 : RI<0xD1, MRM4r, (outs GR64:$dst), (ins GR64:$src1),
"shl{q}\t$dst", [], IIC_SR>;
} // hasSideEffects = 0
} // isConvertibleToThreeAddress = 1
} // Constraints = "$src = $dst", SchedRW
let SchedRW = [WriteShiftLd, WriteRMW] in {
// FIXME: Why do we need an explicit "Uses = [CL]" when the instr has a pattern
// using CL?
let Uses = [CL] in {
def SHL8mCL : I<0xD2, MRM4m, (outs), (ins i8mem :$dst),
"shl{b}\t{%cl, $dst|$dst, cl}",
[(store (shl (loadi8 addr:$dst), CL), addr:$dst)], IIC_SR>;
def SHL16mCL : I<0xD3, MRM4m, (outs), (ins i16mem:$dst),
"shl{w}\t{%cl, $dst|$dst, cl}",
[(store (shl (loadi16 addr:$dst), CL), addr:$dst)], IIC_SR>,
OpSize16;
def SHL32mCL : I<0xD3, MRM4m, (outs), (ins i32mem:$dst),
"shl{l}\t{%cl, $dst|$dst, cl}",
[(store (shl (loadi32 addr:$dst), CL), addr:$dst)], IIC_SR>,
OpSize32;
def SHL64mCL : RI<0xD3, MRM4m, (outs), (ins i64mem:$dst),
"shl{q}\t{%cl, $dst|$dst, cl}",
[(store (shl (loadi64 addr:$dst), CL), addr:$dst)], IIC_SR>;
}
def SHL8mi : Ii8<0xC0, MRM4m, (outs), (ins i8mem :$dst, i8imm:$src),
"shl{b}\t{$src, $dst|$dst, $src}",
[(store (shl (loadi8 addr:$dst), (i8 imm:$src)), addr:$dst)],
IIC_SR>;
def SHL16mi : Ii8<0xC1, MRM4m, (outs), (ins i16mem:$dst, i8imm:$src),
"shl{w}\t{$src, $dst|$dst, $src}",
[(store (shl (loadi16 addr:$dst), (i8 imm:$src)), addr:$dst)],
IIC_SR>, OpSize16;
def SHL32mi : Ii8<0xC1, MRM4m, (outs), (ins i32mem:$dst, i8imm:$src),
"shl{l}\t{$src, $dst|$dst, $src}",
[(store (shl (loadi32 addr:$dst), (i8 imm:$src)), addr:$dst)],
IIC_SR>, OpSize32;
def SHL64mi : RIi8<0xC1, MRM4m, (outs), (ins i64mem:$dst, i8imm:$src),
"shl{q}\t{$src, $dst|$dst, $src}",
[(store (shl (loadi64 addr:$dst), (i8 imm:$src)), addr:$dst)],
IIC_SR>;
// Shift by 1
def SHL8m1 : I<0xD0, MRM4m, (outs), (ins i8mem :$dst),
"shl{b}\t$dst",
[(store (shl (loadi8 addr:$dst), (i8 1)), addr:$dst)],
IIC_SR>;
def SHL16m1 : I<0xD1, MRM4m, (outs), (ins i16mem:$dst),
"shl{w}\t$dst",
[(store (shl (loadi16 addr:$dst), (i8 1)), addr:$dst)],
IIC_SR>, OpSize16;
def SHL32m1 : I<0xD1, MRM4m, (outs), (ins i32mem:$dst),
"shl{l}\t$dst",
[(store (shl (loadi32 addr:$dst), (i8 1)), addr:$dst)],
IIC_SR>, OpSize32;
def SHL64m1 : RI<0xD1, MRM4m, (outs), (ins i64mem:$dst),
"shl{q}\t$dst",
[(store (shl (loadi64 addr:$dst), (i8 1)), addr:$dst)],
IIC_SR>;
} // SchedRW
let Constraints = "$src1 = $dst", SchedRW = [WriteShift] in {
let Uses = [CL] in {
def SHR8rCL : I<0xD2, MRM5r, (outs GR8 :$dst), (ins GR8 :$src1),
"shr{b}\t{%cl, $dst|$dst, cl}",
[(set GR8:$dst, (srl GR8:$src1, CL))], IIC_SR>;
def SHR16rCL : I<0xD3, MRM5r, (outs GR16:$dst), (ins GR16:$src1),
"shr{w}\t{%cl, $dst|$dst, cl}",
[(set GR16:$dst, (srl GR16:$src1, CL))], IIC_SR>, OpSize16;
def SHR32rCL : I<0xD3, MRM5r, (outs GR32:$dst), (ins GR32:$src1),
"shr{l}\t{%cl, $dst|$dst, cl}",
[(set GR32:$dst, (srl GR32:$src1, CL))], IIC_SR>, OpSize32;
def SHR64rCL : RI<0xD3, MRM5r, (outs GR64:$dst), (ins GR64:$src1),
"shr{q}\t{%cl, $dst|$dst, cl}",
[(set GR64:$dst, (srl GR64:$src1, CL))], IIC_SR>;
}
def SHR8ri : Ii8<0xC0, MRM5r, (outs GR8:$dst), (ins GR8:$src1, i8imm:$src2),
"shr{b}\t{$src2, $dst|$dst, $src2}",
[(set GR8:$dst, (srl GR8:$src1, (i8 imm:$src2)))], IIC_SR>;
def SHR16ri : Ii8<0xC1, MRM5r, (outs GR16:$dst), (ins GR16:$src1, i8imm:$src2),
"shr{w}\t{$src2, $dst|$dst, $src2}",
[(set GR16:$dst, (srl GR16:$src1, (i8 imm:$src2)))],
IIC_SR>, OpSize16;
def SHR32ri : Ii8<0xC1, MRM5r, (outs GR32:$dst), (ins GR32:$src1, i8imm:$src2),
"shr{l}\t{$src2, $dst|$dst, $src2}",
[(set GR32:$dst, (srl GR32:$src1, (i8 imm:$src2)))],
IIC_SR>, OpSize32;
def SHR64ri : RIi8<0xC1, MRM5r, (outs GR64:$dst), (ins GR64:$src1, i8imm:$src2),
"shr{q}\t{$src2, $dst|$dst, $src2}",
[(set GR64:$dst, (srl GR64:$src1, (i8 imm:$src2)))], IIC_SR>;
// Shift right by 1
def SHR8r1 : I<0xD0, MRM5r, (outs GR8:$dst), (ins GR8:$src1),
"shr{b}\t$dst",
[(set GR8:$dst, (srl GR8:$src1, (i8 1)))], IIC_SR>;
def SHR16r1 : I<0xD1, MRM5r, (outs GR16:$dst), (ins GR16:$src1),
"shr{w}\t$dst",
[(set GR16:$dst, (srl GR16:$src1, (i8 1)))], IIC_SR>, OpSize16;
def SHR32r1 : I<0xD1, MRM5r, (outs GR32:$dst), (ins GR32:$src1),
"shr{l}\t$dst",
[(set GR32:$dst, (srl GR32:$src1, (i8 1)))], IIC_SR>, OpSize32;
def SHR64r1 : RI<0xD1, MRM5r, (outs GR64:$dst), (ins GR64:$src1),
"shr{q}\t$dst",
[(set GR64:$dst, (srl GR64:$src1, (i8 1)))], IIC_SR>;
} // Constraints = "$src = $dst", SchedRW
let SchedRW = [WriteShiftLd, WriteRMW] in {
let Uses = [CL] in {
def SHR8mCL : I<0xD2, MRM5m, (outs), (ins i8mem :$dst),
"shr{b}\t{%cl, $dst|$dst, cl}",
[(store (srl (loadi8 addr:$dst), CL), addr:$dst)], IIC_SR>;
def SHR16mCL : I<0xD3, MRM5m, (outs), (ins i16mem:$dst),
"shr{w}\t{%cl, $dst|$dst, cl}",
[(store (srl (loadi16 addr:$dst), CL), addr:$dst)], IIC_SR>,
OpSize16;
def SHR32mCL : I<0xD3, MRM5m, (outs), (ins i32mem:$dst),
"shr{l}\t{%cl, $dst|$dst, cl}",
[(store (srl (loadi32 addr:$dst), CL), addr:$dst)], IIC_SR>,
OpSize32;
def SHR64mCL : RI<0xD3, MRM5m, (outs), (ins i64mem:$dst),
"shr{q}\t{%cl, $dst|$dst, cl}",
[(store (srl (loadi64 addr:$dst), CL), addr:$dst)], IIC_SR>;
}
def SHR8mi : Ii8<0xC0, MRM5m, (outs), (ins i8mem :$dst, i8imm:$src),
"shr{b}\t{$src, $dst|$dst, $src}",
[(store (srl (loadi8 addr:$dst), (i8 imm:$src)), addr:$dst)],
IIC_SR>;
def SHR16mi : Ii8<0xC1, MRM5m, (outs), (ins i16mem:$dst, i8imm:$src),
"shr{w}\t{$src, $dst|$dst, $src}",
[(store (srl (loadi16 addr:$dst), (i8 imm:$src)), addr:$dst)],
IIC_SR>, OpSize16;
def SHR32mi : Ii8<0xC1, MRM5m, (outs), (ins i32mem:$dst, i8imm:$src),
"shr{l}\t{$src, $dst|$dst, $src}",
[(store (srl (loadi32 addr:$dst), (i8 imm:$src)), addr:$dst)],
IIC_SR>, OpSize32;
def SHR64mi : RIi8<0xC1, MRM5m, (outs), (ins i64mem:$dst, i8imm:$src),
"shr{q}\t{$src, $dst|$dst, $src}",
[(store (srl (loadi64 addr:$dst), (i8 imm:$src)), addr:$dst)],
IIC_SR>;
// Shift by 1
def SHR8m1 : I<0xD0, MRM5m, (outs), (ins i8mem :$dst),
"shr{b}\t$dst",
[(store (srl (loadi8 addr:$dst), (i8 1)), addr:$dst)],
IIC_SR>;
def SHR16m1 : I<0xD1, MRM5m, (outs), (ins i16mem:$dst),
"shr{w}\t$dst",
[(store (srl (loadi16 addr:$dst), (i8 1)), addr:$dst)],
IIC_SR>, OpSize16;
def SHR32m1 : I<0xD1, MRM5m, (outs), (ins i32mem:$dst),
"shr{l}\t$dst",
[(store (srl (loadi32 addr:$dst), (i8 1)), addr:$dst)],
IIC_SR>, OpSize32;
def SHR64m1 : RI<0xD1, MRM5m, (outs), (ins i64mem:$dst),
"shr{q}\t$dst",
[(store (srl (loadi64 addr:$dst), (i8 1)), addr:$dst)],
IIC_SR>;
} // SchedRW
let Constraints = "$src1 = $dst", SchedRW = [WriteShift] in {
let Uses = [CL] in {
def SAR8rCL : I<0xD2, MRM7r, (outs GR8 :$dst), (ins GR8 :$src1),
"sar{b}\t{%cl, $dst|$dst, cl}",
[(set GR8:$dst, (sra GR8:$src1, CL))],
IIC_SR>;
def SAR16rCL : I<0xD3, MRM7r, (outs GR16:$dst), (ins GR16:$src1),
"sar{w}\t{%cl, $dst|$dst, cl}",
[(set GR16:$dst, (sra GR16:$src1, CL))],
IIC_SR>, OpSize16;
def SAR32rCL : I<0xD3, MRM7r, (outs GR32:$dst), (ins GR32:$src1),
"sar{l}\t{%cl, $dst|$dst, cl}",
[(set GR32:$dst, (sra GR32:$src1, CL))],
IIC_SR>, OpSize32;
def SAR64rCL : RI<0xD3, MRM7r, (outs GR64:$dst), (ins GR64:$src1),
"sar{q}\t{%cl, $dst|$dst, cl}",
[(set GR64:$dst, (sra GR64:$src1, CL))],
IIC_SR>;
}
def SAR8ri : Ii8<0xC0, MRM7r, (outs GR8 :$dst), (ins GR8 :$src1, i8imm:$src2),
"sar{b}\t{$src2, $dst|$dst, $src2}",
[(set GR8:$dst, (sra GR8:$src1, (i8 imm:$src2)))],
IIC_SR>;
def SAR16ri : Ii8<0xC1, MRM7r, (outs GR16:$dst), (ins GR16:$src1, i8imm:$src2),
"sar{w}\t{$src2, $dst|$dst, $src2}",
[(set GR16:$dst, (sra GR16:$src1, (i8 imm:$src2)))],
IIC_SR>, OpSize16;
def SAR32ri : Ii8<0xC1, MRM7r, (outs GR32:$dst), (ins GR32:$src1, i8imm:$src2),
"sar{l}\t{$src2, $dst|$dst, $src2}",
[(set GR32:$dst, (sra GR32:$src1, (i8 imm:$src2)))],
IIC_SR>, OpSize32;
def SAR64ri : RIi8<0xC1, MRM7r, (outs GR64:$dst),
(ins GR64:$src1, i8imm:$src2),
"sar{q}\t{$src2, $dst|$dst, $src2}",
[(set GR64:$dst, (sra GR64:$src1, (i8 imm:$src2)))],
IIC_SR>;
// Shift by 1
def SAR8r1 : I<0xD0, MRM7r, (outs GR8 :$dst), (ins GR8 :$src1),
"sar{b}\t$dst",
[(set GR8:$dst, (sra GR8:$src1, (i8 1)))],
IIC_SR>;
def SAR16r1 : I<0xD1, MRM7r, (outs GR16:$dst), (ins GR16:$src1),
"sar{w}\t$dst",
[(set GR16:$dst, (sra GR16:$src1, (i8 1)))],
IIC_SR>, OpSize16;
def SAR32r1 : I<0xD1, MRM7r, (outs GR32:$dst), (ins GR32:$src1),
"sar{l}\t$dst",
[(set GR32:$dst, (sra GR32:$src1, (i8 1)))],
IIC_SR>, OpSize32;
def SAR64r1 : RI<0xD1, MRM7r, (outs GR64:$dst), (ins GR64:$src1),
"sar{q}\t$dst",
[(set GR64:$dst, (sra GR64:$src1, (i8 1)))],
IIC_SR>;
} // Constraints = "$src = $dst", SchedRW
let SchedRW = [WriteShiftLd, WriteRMW] in {
let Uses = [CL] in {
def SAR8mCL : I<0xD2, MRM7m, (outs), (ins i8mem :$dst),
"sar{b}\t{%cl, $dst|$dst, cl}",
[(store (sra (loadi8 addr:$dst), CL), addr:$dst)],
IIC_SR>;
def SAR16mCL : I<0xD3, MRM7m, (outs), (ins i16mem:$dst),
"sar{w}\t{%cl, $dst|$dst, cl}",
[(store (sra (loadi16 addr:$dst), CL), addr:$dst)],
IIC_SR>, OpSize16;
def SAR32mCL : I<0xD3, MRM7m, (outs), (ins i32mem:$dst),
"sar{l}\t{%cl, $dst|$dst, cl}",
[(store (sra (loadi32 addr:$dst), CL), addr:$dst)],
IIC_SR>, OpSize32;
def SAR64mCL : RI<0xD3, MRM7m, (outs), (ins i64mem:$dst),
"sar{q}\t{%cl, $dst|$dst, cl}",
[(store (sra (loadi64 addr:$dst), CL), addr:$dst)],
IIC_SR>;
}
def SAR8mi : Ii8<0xC0, MRM7m, (outs), (ins i8mem :$dst, i8imm:$src),
"sar{b}\t{$src, $dst|$dst, $src}",
[(store (sra (loadi8 addr:$dst), (i8 imm:$src)), addr:$dst)],
IIC_SR>;
def SAR16mi : Ii8<0xC1, MRM7m, (outs), (ins i16mem:$dst, i8imm:$src),
"sar{w}\t{$src, $dst|$dst, $src}",
[(store (sra (loadi16 addr:$dst), (i8 imm:$src)), addr:$dst)],
IIC_SR>, OpSize16;
def SAR32mi : Ii8<0xC1, MRM7m, (outs), (ins i32mem:$dst, i8imm:$src),
"sar{l}\t{$src, $dst|$dst, $src}",
[(store (sra (loadi32 addr:$dst), (i8 imm:$src)), addr:$dst)],
IIC_SR>, OpSize32;
def SAR64mi : RIi8<0xC1, MRM7m, (outs), (ins i64mem:$dst, i8imm:$src),
"sar{q}\t{$src, $dst|$dst, $src}",
[(store (sra (loadi64 addr:$dst), (i8 imm:$src)), addr:$dst)],
IIC_SR>;
// Shift by 1
def SAR8m1 : I<0xD0, MRM7m, (outs), (ins i8mem :$dst),
"sar{b}\t$dst",
[(store (sra (loadi8 addr:$dst), (i8 1)), addr:$dst)],
IIC_SR>;
def SAR16m1 : I<0xD1, MRM7m, (outs), (ins i16mem:$dst),
"sar{w}\t$dst",
[(store (sra (loadi16 addr:$dst), (i8 1)), addr:$dst)],
IIC_SR>, OpSize16;
def SAR32m1 : I<0xD1, MRM7m, (outs), (ins i32mem:$dst),
"sar{l}\t$dst",
[(store (sra (loadi32 addr:$dst), (i8 1)), addr:$dst)],
IIC_SR>, OpSize32;
def SAR64m1 : RI<0xD1, MRM7m, (outs), (ins i64mem:$dst),
"sar{q}\t$dst",
[(store (sra (loadi64 addr:$dst), (i8 1)), addr:$dst)],
IIC_SR>;
} // SchedRW
//===----------------------------------------------------------------------===//
// Rotate instructions
//===----------------------------------------------------------------------===//
let hasSideEffects = 0 in {
let Constraints = "$src1 = $dst", SchedRW = [WriteShift] in {
def RCL8r1 : I<0xD0, MRM2r, (outs GR8:$dst), (ins GR8:$src1),
"rcl{b}\t$dst", [], IIC_SR>;
def RCL8ri : Ii8<0xC0, MRM2r, (outs GR8:$dst), (ins GR8:$src1, i8imm:$cnt),
"rcl{b}\t{$cnt, $dst|$dst, $cnt}", [], IIC_SR>;
let Uses = [CL] in
def RCL8rCL : I<0xD2, MRM2r, (outs GR8:$dst), (ins GR8:$src1),
"rcl{b}\t{%cl, $dst|$dst, cl}", [], IIC_SR>;
def RCL16r1 : I<0xD1, MRM2r, (outs GR16:$dst), (ins GR16:$src1),
"rcl{w}\t$dst", [], IIC_SR>, OpSize16;
def RCL16ri : Ii8<0xC1, MRM2r, (outs GR16:$dst), (ins GR16:$src1, i8imm:$cnt),
"rcl{w}\t{$cnt, $dst|$dst, $cnt}", [], IIC_SR>, OpSize16;
let Uses = [CL] in
def RCL16rCL : I<0xD3, MRM2r, (outs GR16:$dst), (ins GR16:$src1),
"rcl{w}\t{%cl, $dst|$dst, cl}", [], IIC_SR>, OpSize16;
def RCL32r1 : I<0xD1, MRM2r, (outs GR32:$dst), (ins GR32:$src1),
"rcl{l}\t$dst", [], IIC_SR>, OpSize32;
def RCL32ri : Ii8<0xC1, MRM2r, (outs GR32:$dst), (ins GR32:$src1, i8imm:$cnt),
"rcl{l}\t{$cnt, $dst|$dst, $cnt}", [], IIC_SR>, OpSize32;
let Uses = [CL] in
def RCL32rCL : I<0xD3, MRM2r, (outs GR32:$dst), (ins GR32:$src1),
"rcl{l}\t{%cl, $dst|$dst, cl}", [], IIC_SR>, OpSize32;
def RCL64r1 : RI<0xD1, MRM2r, (outs GR64:$dst), (ins GR64:$src1),
"rcl{q}\t$dst", [], IIC_SR>;
def RCL64ri : RIi8<0xC1, MRM2r, (outs GR64:$dst), (ins GR64:$src1, i8imm:$cnt),
"rcl{q}\t{$cnt, $dst|$dst, $cnt}", [], IIC_SR>;
let Uses = [CL] in
def RCL64rCL : RI<0xD3, MRM2r, (outs GR64:$dst), (ins GR64:$src1),
"rcl{q}\t{%cl, $dst|$dst, cl}", [], IIC_SR>;
def RCR8r1 : I<0xD0, MRM3r, (outs GR8:$dst), (ins GR8:$src1),
"rcr{b}\t$dst", [], IIC_SR>;
def RCR8ri : Ii8<0xC0, MRM3r, (outs GR8:$dst), (ins GR8:$src1, i8imm:$cnt),
"rcr{b}\t{$cnt, $dst|$dst, $cnt}", [], IIC_SR>;
let Uses = [CL] in
def RCR8rCL : I<0xD2, MRM3r, (outs GR8:$dst), (ins GR8:$src1),
"rcr{b}\t{%cl, $dst|$dst, cl}", [], IIC_SR>;
def RCR16r1 : I<0xD1, MRM3r, (outs GR16:$dst), (ins GR16:$src1),
"rcr{w}\t$dst", [], IIC_SR>, OpSize16;
def RCR16ri : Ii8<0xC1, MRM3r, (outs GR16:$dst), (ins GR16:$src1, i8imm:$cnt),
"rcr{w}\t{$cnt, $dst|$dst, $cnt}", [], IIC_SR>, OpSize16;
let Uses = [CL] in
def RCR16rCL : I<0xD3, MRM3r, (outs GR16:$dst), (ins GR16:$src1),
"rcr{w}\t{%cl, $dst|$dst, cl}", [], IIC_SR>, OpSize16;
def RCR32r1 : I<0xD1, MRM3r, (outs GR32:$dst), (ins GR32:$src1),
"rcr{l}\t$dst", [], IIC_SR>, OpSize32;
def RCR32ri : Ii8<0xC1, MRM3r, (outs GR32:$dst), (ins GR32:$src1, i8imm:$cnt),
"rcr{l}\t{$cnt, $dst|$dst, $cnt}", [], IIC_SR>, OpSize32;
let Uses = [CL] in
def RCR32rCL : I<0xD3, MRM3r, (outs GR32:$dst), (ins GR32:$src1),
"rcr{l}\t{%cl, $dst|$dst, cl}", [], IIC_SR>, OpSize32;
def RCR64r1 : RI<0xD1, MRM3r, (outs GR64:$dst), (ins GR64:$src1),
"rcr{q}\t$dst", [], IIC_SR>;
def RCR64ri : RIi8<0xC1, MRM3r, (outs GR64:$dst), (ins GR64:$src1, i8imm:$cnt),
"rcr{q}\t{$cnt, $dst|$dst, $cnt}", [], IIC_SR>;
let Uses = [CL] in
def RCR64rCL : RI<0xD3, MRM3r, (outs GR64:$dst), (ins GR64:$src1),
"rcr{q}\t{%cl, $dst|$dst, cl}", [], IIC_SR>;
} // Constraints = "$src = $dst"
let SchedRW = [WriteShiftLd, WriteRMW] in {
def RCL8m1 : I<0xD0, MRM2m, (outs), (ins i8mem:$dst),
"rcl{b}\t$dst", [], IIC_SR>;
def RCL8mi : Ii8<0xC0, MRM2m, (outs), (ins i8mem:$dst, i8imm:$cnt),
"rcl{b}\t{$cnt, $dst|$dst, $cnt}", [], IIC_SR>;
def RCL16m1 : I<0xD1, MRM2m, (outs), (ins i16mem:$dst),
"rcl{w}\t$dst", [], IIC_SR>, OpSize16;
def RCL16mi : Ii8<0xC1, MRM2m, (outs), (ins i16mem:$dst, i8imm:$cnt),
"rcl{w}\t{$cnt, $dst|$dst, $cnt}", [], IIC_SR>, OpSize16;
def RCL32m1 : I<0xD1, MRM2m, (outs), (ins i32mem:$dst),
"rcl{l}\t$dst", [], IIC_SR>, OpSize32;
def RCL32mi : Ii8<0xC1, MRM2m, (outs), (ins i32mem:$dst, i8imm:$cnt),
"rcl{l}\t{$cnt, $dst|$dst, $cnt}", [], IIC_SR>, OpSize32;
def RCL64m1 : RI<0xD1, MRM2m, (outs), (ins i64mem:$dst),
"rcl{q}\t$dst", [], IIC_SR>;
def RCL64mi : RIi8<0xC1, MRM2m, (outs), (ins i64mem:$dst, i8imm:$cnt),
"rcl{q}\t{$cnt, $dst|$dst, $cnt}", [], IIC_SR>;
def RCR8m1 : I<0xD0, MRM3m, (outs), (ins i8mem:$dst),
"rcr{b}\t$dst", [], IIC_SR>;
def RCR8mi : Ii8<0xC0, MRM3m, (outs), (ins i8mem:$dst, i8imm:$cnt),
"rcr{b}\t{$cnt, $dst|$dst, $cnt}", [], IIC_SR>;
def RCR16m1 : I<0xD1, MRM3m, (outs), (ins i16mem:$dst),
"rcr{w}\t$dst", [], IIC_SR>, OpSize16;
def RCR16mi : Ii8<0xC1, MRM3m, (outs), (ins i16mem:$dst, i8imm:$cnt),
"rcr{w}\t{$cnt, $dst|$dst, $cnt}", [], IIC_SR>, OpSize16;
def RCR32m1 : I<0xD1, MRM3m, (outs), (ins i32mem:$dst),
"rcr{l}\t$dst", [], IIC_SR>, OpSize32;
def RCR32mi : Ii8<0xC1, MRM3m, (outs), (ins i32mem:$dst, i8imm:$cnt),
"rcr{l}\t{$cnt, $dst|$dst, $cnt}", [], IIC_SR>, OpSize32;
def RCR64m1 : RI<0xD1, MRM3m, (outs), (ins i64mem:$dst),
"rcr{q}\t$dst", [], IIC_SR>;
def RCR64mi : RIi8<0xC1, MRM3m, (outs), (ins i64mem:$dst, i8imm:$cnt),
"rcr{q}\t{$cnt, $dst|$dst, $cnt}", [], IIC_SR>;
let Uses = [CL] in {
def RCL8mCL : I<0xD2, MRM2m, (outs), (ins i8mem:$dst),
"rcl{b}\t{%cl, $dst|$dst, cl}", [], IIC_SR>;
def RCL16mCL : I<0xD3, MRM2m, (outs), (ins i16mem:$dst),
"rcl{w}\t{%cl, $dst|$dst, cl}", [], IIC_SR>, OpSize16;
def RCL32mCL : I<0xD3, MRM2m, (outs), (ins i32mem:$dst),
"rcl{l}\t{%cl, $dst|$dst, cl}", [], IIC_SR>, OpSize32;
def RCL64mCL : RI<0xD3, MRM2m, (outs), (ins i64mem:$dst),
"rcl{q}\t{%cl, $dst|$dst, cl}", [], IIC_SR>;
def RCR8mCL : I<0xD2, MRM3m, (outs), (ins i8mem:$dst),
"rcr{b}\t{%cl, $dst|$dst, cl}", [], IIC_SR>;
def RCR16mCL : I<0xD3, MRM3m, (outs), (ins i16mem:$dst),
"rcr{w}\t{%cl, $dst|$dst, cl}", [], IIC_SR>, OpSize16;
def RCR32mCL : I<0xD3, MRM3m, (outs), (ins i32mem:$dst),
"rcr{l}\t{%cl, $dst|$dst, cl}", [], IIC_SR>, OpSize32;
def RCR64mCL : RI<0xD3, MRM3m, (outs), (ins i64mem:$dst),
"rcr{q}\t{%cl, $dst|$dst, cl}", [], IIC_SR>;
}
} // SchedRW
} // hasSideEffects = 0
let Constraints = "$src1 = $dst", SchedRW = [WriteShift] in {
// FIXME: provide shorter instructions when imm8 == 1
let Uses = [CL] in {
def ROL8rCL : I<0xD2, MRM0r, (outs GR8 :$dst), (ins GR8 :$src1),
"rol{b}\t{%cl, $dst|$dst, cl}",
[(set GR8:$dst, (rotl GR8:$src1, CL))], IIC_SR>;
def ROL16rCL : I<0xD3, MRM0r, (outs GR16:$dst), (ins GR16:$src1),
"rol{w}\t{%cl, $dst|$dst, cl}",
[(set GR16:$dst, (rotl GR16:$src1, CL))], IIC_SR>, OpSize16;
def ROL32rCL : I<0xD3, MRM0r, (outs GR32:$dst), (ins GR32:$src1),
"rol{l}\t{%cl, $dst|$dst, cl}",
[(set GR32:$dst, (rotl GR32:$src1, CL))], IIC_SR>, OpSize32;
def ROL64rCL : RI<0xD3, MRM0r, (outs GR64:$dst), (ins GR64:$src1),
"rol{q}\t{%cl, $dst|$dst, cl}",
[(set GR64:$dst, (rotl GR64:$src1, CL))], IIC_SR>;
}
def ROL8ri : Ii8<0xC0, MRM0r, (outs GR8 :$dst), (ins GR8 :$src1, i8imm:$src2),
"rol{b}\t{$src2, $dst|$dst, $src2}",
[(set GR8:$dst, (rotl GR8:$src1, (i8 imm:$src2)))], IIC_SR>;
def ROL16ri : Ii8<0xC1, MRM0r, (outs GR16:$dst), (ins GR16:$src1, i8imm:$src2),
"rol{w}\t{$src2, $dst|$dst, $src2}",
[(set GR16:$dst, (rotl GR16:$src1, (i8 imm:$src2)))],
IIC_SR>, OpSize16;
def ROL32ri : Ii8<0xC1, MRM0r, (outs GR32:$dst), (ins GR32:$src1, i8imm:$src2),
"rol{l}\t{$src2, $dst|$dst, $src2}",
[(set GR32:$dst, (rotl GR32:$src1, (i8 imm:$src2)))],
IIC_SR>, OpSize32;
def ROL64ri : RIi8<0xC1, MRM0r, (outs GR64:$dst),
(ins GR64:$src1, i8imm:$src2),
"rol{q}\t{$src2, $dst|$dst, $src2}",
[(set GR64:$dst, (rotl GR64:$src1, (i8 imm:$src2)))],
IIC_SR>;
// Rotate by 1
def ROL8r1 : I<0xD0, MRM0r, (outs GR8 :$dst), (ins GR8 :$src1),
"rol{b}\t$dst",
[(set GR8:$dst, (rotl GR8:$src1, (i8 1)))],
IIC_SR>;
def ROL16r1 : I<0xD1, MRM0r, (outs GR16:$dst), (ins GR16:$src1),
"rol{w}\t$dst",
[(set GR16:$dst, (rotl GR16:$src1, (i8 1)))],
IIC_SR>, OpSize16;
def ROL32r1 : I<0xD1, MRM0r, (outs GR32:$dst), (ins GR32:$src1),
"rol{l}\t$dst",
[(set GR32:$dst, (rotl GR32:$src1, (i8 1)))],
IIC_SR>, OpSize32;
def ROL64r1 : RI<0xD1, MRM0r, (outs GR64:$dst), (ins GR64:$src1),
"rol{q}\t$dst",
[(set GR64:$dst, (rotl GR64:$src1, (i8 1)))],
IIC_SR>;
} // Constraints = "$src = $dst", SchedRW
let SchedRW = [WriteShiftLd, WriteRMW] in {
let Uses = [CL] in {
def ROL8mCL : I<0xD2, MRM0m, (outs), (ins i8mem :$dst),
"rol{b}\t{%cl, $dst|$dst, cl}",
[(store (rotl (loadi8 addr:$dst), CL), addr:$dst)],
IIC_SR>;
def ROL16mCL : I<0xD3, MRM0m, (outs), (ins i16mem:$dst),
"rol{w}\t{%cl, $dst|$dst, cl}",
[(store (rotl (loadi16 addr:$dst), CL), addr:$dst)],
IIC_SR>, OpSize16;
def ROL32mCL : I<0xD3, MRM0m, (outs), (ins i32mem:$dst),
"rol{l}\t{%cl, $dst|$dst, cl}",
[(store (rotl (loadi32 addr:$dst), CL), addr:$dst)],
IIC_SR>, OpSize32;
def ROL64mCL : RI<0xD3, MRM0m, (outs), (ins i64mem:$dst),
"rol{q}\t{%cl, $dst|$dst, cl}",
[(store (rotl (loadi64 addr:$dst), CL), addr:$dst)],
IIC_SR>;
}
def ROL8mi : Ii8<0xC0, MRM0m, (outs), (ins i8mem :$dst, i8imm:$src1),
"rol{b}\t{$src1, $dst|$dst, $src1}",
[(store (rotl (loadi8 addr:$dst), (i8 imm:$src1)), addr:$dst)],
IIC_SR>;
def ROL16mi : Ii8<0xC1, MRM0m, (outs), (ins i16mem:$dst, i8imm:$src1),
"rol{w}\t{$src1, $dst|$dst, $src1}",
[(store (rotl (loadi16 addr:$dst), (i8 imm:$src1)), addr:$dst)],
IIC_SR>, OpSize16;
def ROL32mi : Ii8<0xC1, MRM0m, (outs), (ins i32mem:$dst, i8imm:$src1),
"rol{l}\t{$src1, $dst|$dst, $src1}",
[(store (rotl (loadi32 addr:$dst), (i8 imm:$src1)), addr:$dst)],
IIC_SR>, OpSize32;
def ROL64mi : RIi8<0xC1, MRM0m, (outs), (ins i64mem:$dst, i8imm:$src1),
"rol{q}\t{$src1, $dst|$dst, $src1}",
[(store (rotl (loadi64 addr:$dst), (i8 imm:$src1)), addr:$dst)],
IIC_SR>;
// Rotate by 1
def ROL8m1 : I<0xD0, MRM0m, (outs), (ins i8mem :$dst),
"rol{b}\t$dst",
[(store (rotl (loadi8 addr:$dst), (i8 1)), addr:$dst)],
IIC_SR>;
def ROL16m1 : I<0xD1, MRM0m, (outs), (ins i16mem:$dst),
"rol{w}\t$dst",
[(store (rotl (loadi16 addr:$dst), (i8 1)), addr:$dst)],
IIC_SR>, OpSize16;
def ROL32m1 : I<0xD1, MRM0m, (outs), (ins i32mem:$dst),
"rol{l}\t$dst",
[(store (rotl (loadi32 addr:$dst), (i8 1)), addr:$dst)],
IIC_SR>, OpSize32;
def ROL64m1 : RI<0xD1, MRM0m, (outs), (ins i64mem:$dst),
"rol{q}\t$dst",
[(store (rotl (loadi64 addr:$dst), (i8 1)), addr:$dst)],
IIC_SR>;
} // SchedRW
let Constraints = "$src1 = $dst", SchedRW = [WriteShift] in {
let Uses = [CL] in {
def ROR8rCL : I<0xD2, MRM1r, (outs GR8 :$dst), (ins GR8 :$src1),
"ror{b}\t{%cl, $dst|$dst, cl}",
[(set GR8:$dst, (rotr GR8:$src1, CL))], IIC_SR>;
def ROR16rCL : I<0xD3, MRM1r, (outs GR16:$dst), (ins GR16:$src1),
"ror{w}\t{%cl, $dst|$dst, cl}",
[(set GR16:$dst, (rotr GR16:$src1, CL))], IIC_SR>, OpSize16;
def ROR32rCL : I<0xD3, MRM1r, (outs GR32:$dst), (ins GR32:$src1),
"ror{l}\t{%cl, $dst|$dst, cl}",
[(set GR32:$dst, (rotr GR32:$src1, CL))], IIC_SR>, OpSize32;
def ROR64rCL : RI<0xD3, MRM1r, (outs GR64:$dst), (ins GR64:$src1),
"ror{q}\t{%cl, $dst|$dst, cl}",
[(set GR64:$dst, (rotr GR64:$src1, CL))], IIC_SR>;
}
def ROR8ri : Ii8<0xC0, MRM1r, (outs GR8 :$dst), (ins GR8 :$src1, i8imm:$src2),
"ror{b}\t{$src2, $dst|$dst, $src2}",
[(set GR8:$dst, (rotr GR8:$src1, (i8 imm:$src2)))], IIC_SR>;
def ROR16ri : Ii8<0xC1, MRM1r, (outs GR16:$dst), (ins GR16:$src1, i8imm:$src2),
"ror{w}\t{$src2, $dst|$dst, $src2}",
[(set GR16:$dst, (rotr GR16:$src1, (i8 imm:$src2)))],
IIC_SR>, OpSize16;
def ROR32ri : Ii8<0xC1, MRM1r, (outs GR32:$dst), (ins GR32:$src1, i8imm:$src2),
"ror{l}\t{$src2, $dst|$dst, $src2}",
[(set GR32:$dst, (rotr GR32:$src1, (i8 imm:$src2)))],
IIC_SR>, OpSize32;
def ROR64ri : RIi8<0xC1, MRM1r, (outs GR64:$dst),
(ins GR64:$src1, i8imm:$src2),
"ror{q}\t{$src2, $dst|$dst, $src2}",
[(set GR64:$dst, (rotr GR64:$src1, (i8 imm:$src2)))],
IIC_SR>;
// Rotate by 1
def ROR8r1 : I<0xD0, MRM1r, (outs GR8 :$dst), (ins GR8 :$src1),
"ror{b}\t$dst",
[(set GR8:$dst, (rotr GR8:$src1, (i8 1)))],
IIC_SR>;
def ROR16r1 : I<0xD1, MRM1r, (outs GR16:$dst), (ins GR16:$src1),
"ror{w}\t$dst",
[(set GR16:$dst, (rotr GR16:$src1, (i8 1)))],
IIC_SR>, OpSize16;
def ROR32r1 : I<0xD1, MRM1r, (outs GR32:$dst), (ins GR32:$src1),
"ror{l}\t$dst",
[(set GR32:$dst, (rotr GR32:$src1, (i8 1)))],
IIC_SR>, OpSize32;
def ROR64r1 : RI<0xD1, MRM1r, (outs GR64:$dst), (ins GR64:$src1),
"ror{q}\t$dst",
[(set GR64:$dst, (rotr GR64:$src1, (i8 1)))],
IIC_SR>;
} // Constraints = "$src = $dst", SchedRW
let SchedRW = [WriteShiftLd, WriteRMW] in {
let Uses = [CL] in {
def ROR8mCL : I<0xD2, MRM1m, (outs), (ins i8mem :$dst),
"ror{b}\t{%cl, $dst|$dst, cl}",
[(store (rotr (loadi8 addr:$dst), CL), addr:$dst)],
IIC_SR>;
def ROR16mCL : I<0xD3, MRM1m, (outs), (ins i16mem:$dst),
"ror{w}\t{%cl, $dst|$dst, cl}",
[(store (rotr (loadi16 addr:$dst), CL), addr:$dst)],
IIC_SR>, OpSize16;
def ROR32mCL : I<0xD3, MRM1m, (outs), (ins i32mem:$dst),
"ror{l}\t{%cl, $dst|$dst, cl}",
[(store (rotr (loadi32 addr:$dst), CL), addr:$dst)],
IIC_SR>, OpSize32;
def ROR64mCL : RI<0xD3, MRM1m, (outs), (ins i64mem:$dst),
"ror{q}\t{%cl, $dst|$dst, cl}",
[(store (rotr (loadi64 addr:$dst), CL), addr:$dst)],
IIC_SR>;
}
def ROR8mi : Ii8<0xC0, MRM1m, (outs), (ins i8mem :$dst, i8imm:$src),
"ror{b}\t{$src, $dst|$dst, $src}",
[(store (rotr (loadi8 addr:$dst), (i8 imm:$src)), addr:$dst)],
IIC_SR>;
def ROR16mi : Ii8<0xC1, MRM1m, (outs), (ins i16mem:$dst, i8imm:$src),
"ror{w}\t{$src, $dst|$dst, $src}",
[(store (rotr (loadi16 addr:$dst), (i8 imm:$src)), addr:$dst)],
IIC_SR>, OpSize16;
def ROR32mi : Ii8<0xC1, MRM1m, (outs), (ins i32mem:$dst, i8imm:$src),
"ror{l}\t{$src, $dst|$dst, $src}",
[(store (rotr (loadi32 addr:$dst), (i8 imm:$src)), addr:$dst)],
IIC_SR>, OpSize32;
def ROR64mi : RIi8<0xC1, MRM1m, (outs), (ins i64mem:$dst, i8imm:$src),
"ror{q}\t{$src, $dst|$dst, $src}",
[(store (rotr (loadi64 addr:$dst), (i8 imm:$src)), addr:$dst)],
IIC_SR>;
// Rotate by 1
def ROR8m1 : I<0xD0, MRM1m, (outs), (ins i8mem :$dst),
"ror{b}\t$dst",
[(store (rotr (loadi8 addr:$dst), (i8 1)), addr:$dst)],
IIC_SR>;
def ROR16m1 : I<0xD1, MRM1m, (outs), (ins i16mem:$dst),
"ror{w}\t$dst",
[(store (rotr (loadi16 addr:$dst), (i8 1)), addr:$dst)],
IIC_SR>, OpSize16;
def ROR32m1 : I<0xD1, MRM1m, (outs), (ins i32mem:$dst),
"ror{l}\t$dst",
[(store (rotr (loadi32 addr:$dst), (i8 1)), addr:$dst)],
IIC_SR>, OpSize32;
def ROR64m1 : RI<0xD1, MRM1m, (outs), (ins i64mem:$dst),
"ror{q}\t$dst",
[(store (rotr (loadi64 addr:$dst), (i8 1)), addr:$dst)],
IIC_SR>;
} // SchedRW
//===----------------------------------------------------------------------===//
// Double shift instructions (generalizations of rotate)
//===----------------------------------------------------------------------===//
let Constraints = "$src1 = $dst", SchedRW = [WriteShift] in {
let Uses = [CL] in {
def SHLD16rrCL : I<0xA5, MRMDestReg, (outs GR16:$dst),
(ins GR16:$src1, GR16:$src2),
"shld{w}\t{%cl, $src2, $dst|$dst, $src2, cl}",
[(set GR16:$dst, (X86shld GR16:$src1, GR16:$src2, CL))],
IIC_SHD16_REG_CL>,
TB, OpSize16;
def SHRD16rrCL : I<0xAD, MRMDestReg, (outs GR16:$dst),
(ins GR16:$src1, GR16:$src2),
"shrd{w}\t{%cl, $src2, $dst|$dst, $src2, cl}",
[(set GR16:$dst, (X86shrd GR16:$src1, GR16:$src2, CL))],
IIC_SHD16_REG_CL>,
TB, OpSize16;
def SHLD32rrCL : I<0xA5, MRMDestReg, (outs GR32:$dst),
(ins GR32:$src1, GR32:$src2),
"shld{l}\t{%cl, $src2, $dst|$dst, $src2, cl}",
[(set GR32:$dst, (X86shld GR32:$src1, GR32:$src2, CL))],
IIC_SHD32_REG_CL>, TB, OpSize32;
def SHRD32rrCL : I<0xAD, MRMDestReg, (outs GR32:$dst),
(ins GR32:$src1, GR32:$src2),
"shrd{l}\t{%cl, $src2, $dst|$dst, $src2, cl}",
[(set GR32:$dst, (X86shrd GR32:$src1, GR32:$src2, CL))],
IIC_SHD32_REG_CL>, TB, OpSize32;
def SHLD64rrCL : RI<0xA5, MRMDestReg, (outs GR64:$dst),
(ins GR64:$src1, GR64:$src2),
"shld{q}\t{%cl, $src2, $dst|$dst, $src2, cl}",
[(set GR64:$dst, (X86shld GR64:$src1, GR64:$src2, CL))],
IIC_SHD64_REG_CL>,
TB;
def SHRD64rrCL : RI<0xAD, MRMDestReg, (outs GR64:$dst),
(ins GR64:$src1, GR64:$src2),
"shrd{q}\t{%cl, $src2, $dst|$dst, $src2, cl}",
[(set GR64:$dst, (X86shrd GR64:$src1, GR64:$src2, CL))],
IIC_SHD64_REG_CL>,
TB;
}
let isCommutable = 1 in { // These instructions commute to each other.
def SHLD16rri8 : Ii8<0xA4, MRMDestReg,
(outs GR16:$dst),
(ins GR16:$src1, GR16:$src2, i8imm:$src3),
"shld{w}\t{$src3, $src2, $dst|$dst, $src2, $src3}",
[(set GR16:$dst, (X86shld GR16:$src1, GR16:$src2,
(i8 imm:$src3)))], IIC_SHD16_REG_IM>,
TB, OpSize16;
def SHRD16rri8 : Ii8<0xAC, MRMDestReg,
(outs GR16:$dst),
(ins GR16:$src1, GR16:$src2, i8imm:$src3),
"shrd{w}\t{$src3, $src2, $dst|$dst, $src2, $src3}",
[(set GR16:$dst, (X86shrd GR16:$src1, GR16:$src2,
(i8 imm:$src3)))], IIC_SHD16_REG_IM>,
TB, OpSize16;
def SHLD32rri8 : Ii8<0xA4, MRMDestReg,
(outs GR32:$dst),
(ins GR32:$src1, GR32:$src2, i8imm:$src3),
"shld{l}\t{$src3, $src2, $dst|$dst, $src2, $src3}",
[(set GR32:$dst, (X86shld GR32:$src1, GR32:$src2,
(i8 imm:$src3)))], IIC_SHD32_REG_IM>,
TB, OpSize32;
def SHRD32rri8 : Ii8<0xAC, MRMDestReg,
(outs GR32:$dst),
(ins GR32:$src1, GR32:$src2, i8imm:$src3),
"shrd{l}\t{$src3, $src2, $dst|$dst, $src2, $src3}",
[(set GR32:$dst, (X86shrd GR32:$src1, GR32:$src2,
(i8 imm:$src3)))], IIC_SHD32_REG_IM>,
TB, OpSize32;
def SHLD64rri8 : RIi8<0xA4, MRMDestReg,
(outs GR64:$dst),
(ins GR64:$src1, GR64:$src2, i8imm:$src3),
"shld{q}\t{$src3, $src2, $dst|$dst, $src2, $src3}",
[(set GR64:$dst, (X86shld GR64:$src1, GR64:$src2,
(i8 imm:$src3)))], IIC_SHD64_REG_IM>,
TB;
def SHRD64rri8 : RIi8<0xAC, MRMDestReg,
(outs GR64:$dst),
(ins GR64:$src1, GR64:$src2, i8imm:$src3),
"shrd{q}\t{$src3, $src2, $dst|$dst, $src2, $src3}",
[(set GR64:$dst, (X86shrd GR64:$src1, GR64:$src2,
(i8 imm:$src3)))], IIC_SHD64_REG_IM>,
TB;
}
} // Constraints = "$src = $dst", SchedRW
let SchedRW = [WriteShiftLd, WriteRMW] in {
let Uses = [CL] in {
def SHLD16mrCL : I<0xA5, MRMDestMem, (outs), (ins i16mem:$dst, GR16:$src2),
"shld{w}\t{%cl, $src2, $dst|$dst, $src2, cl}",
[(store (X86shld (loadi16 addr:$dst), GR16:$src2, CL),
addr:$dst)], IIC_SHD16_MEM_CL>, TB, OpSize16;
def SHRD16mrCL : I<0xAD, MRMDestMem, (outs), (ins i16mem:$dst, GR16:$src2),
"shrd{w}\t{%cl, $src2, $dst|$dst, $src2, cl}",
[(store (X86shrd (loadi16 addr:$dst), GR16:$src2, CL),
addr:$dst)], IIC_SHD16_MEM_CL>, TB, OpSize16;
def SHLD32mrCL : I<0xA5, MRMDestMem, (outs), (ins i32mem:$dst, GR32:$src2),
"shld{l}\t{%cl, $src2, $dst|$dst, $src2, cl}",
[(store (X86shld (loadi32 addr:$dst), GR32:$src2, CL),
addr:$dst)], IIC_SHD32_MEM_CL>, TB, OpSize32;
def SHRD32mrCL : I<0xAD, MRMDestMem, (outs), (ins i32mem:$dst, GR32:$src2),
"shrd{l}\t{%cl, $src2, $dst|$dst, $src2, cl}",
[(store (X86shrd (loadi32 addr:$dst), GR32:$src2, CL),
addr:$dst)], IIC_SHD32_MEM_CL>, TB, OpSize32;
def SHLD64mrCL : RI<0xA5, MRMDestMem, (outs), (ins i64mem:$dst, GR64:$src2),
"shld{q}\t{%cl, $src2, $dst|$dst, $src2, cl}",
[(store (X86shld (loadi64 addr:$dst), GR64:$src2, CL),
addr:$dst)], IIC_SHD64_MEM_CL>, TB;
def SHRD64mrCL : RI<0xAD, MRMDestMem, (outs), (ins i64mem:$dst, GR64:$src2),
"shrd{q}\t{%cl, $src2, $dst|$dst, $src2, cl}",
[(store (X86shrd (loadi64 addr:$dst), GR64:$src2, CL),
addr:$dst)], IIC_SHD64_MEM_CL>, TB;
}
def SHLD16mri8 : Ii8<0xA4, MRMDestMem,
(outs), (ins i16mem:$dst, GR16:$src2, i8imm:$src3),
"shld{w}\t{$src3, $src2, $dst|$dst, $src2, $src3}",
[(store (X86shld (loadi16 addr:$dst), GR16:$src2,
(i8 imm:$src3)), addr:$dst)],
IIC_SHD16_MEM_IM>,
TB, OpSize16;
def SHRD16mri8 : Ii8<0xAC, MRMDestMem,
(outs), (ins i16mem:$dst, GR16:$src2, i8imm:$src3),
"shrd{w}\t{$src3, $src2, $dst|$dst, $src2, $src3}",
[(store (X86shrd (loadi16 addr:$dst), GR16:$src2,
(i8 imm:$src3)), addr:$dst)],
IIC_SHD16_MEM_IM>,
TB, OpSize16;
def SHLD32mri8 : Ii8<0xA4, MRMDestMem,
(outs), (ins i32mem:$dst, GR32:$src2, i8imm:$src3),
"shld{l}\t{$src3, $src2, $dst|$dst, $src2, $src3}",
[(store (X86shld (loadi32 addr:$dst), GR32:$src2,
(i8 imm:$src3)), addr:$dst)],
IIC_SHD32_MEM_IM>,
TB, OpSize32;
def SHRD32mri8 : Ii8<0xAC, MRMDestMem,
(outs), (ins i32mem:$dst, GR32:$src2, i8imm:$src3),
"shrd{l}\t{$src3, $src2, $dst|$dst, $src2, $src3}",
[(store (X86shrd (loadi32 addr:$dst), GR32:$src2,
(i8 imm:$src3)), addr:$dst)],
IIC_SHD32_MEM_IM>,
TB, OpSize32;
def SHLD64mri8 : RIi8<0xA4, MRMDestMem,
(outs), (ins i64mem:$dst, GR64:$src2, i8imm:$src3),
"shld{q}\t{$src3, $src2, $dst|$dst, $src2, $src3}",
[(store (X86shld (loadi64 addr:$dst), GR64:$src2,
(i8 imm:$src3)), addr:$dst)],
IIC_SHD64_MEM_IM>,
TB;
def SHRD64mri8 : RIi8<0xAC, MRMDestMem,
(outs), (ins i64mem:$dst, GR64:$src2, i8imm:$src3),
"shrd{q}\t{$src3, $src2, $dst|$dst, $src2, $src3}",
[(store (X86shrd (loadi64 addr:$dst), GR64:$src2,
(i8 imm:$src3)), addr:$dst)],
IIC_SHD64_MEM_IM>,
TB;
} // SchedRW
} // Defs = [EFLAGS]
def ROT32L2R_imm8 : SDNodeXForm<imm, [{
// Convert a ROTL shamt to a ROTR shamt on 32-bit integer.
return getI8Imm(32 - N->getZExtValue());
}]>;
def ROT64L2R_imm8 : SDNodeXForm<imm, [{
// Convert a ROTL shamt to a ROTR shamt on 64-bit integer.
return getI8Imm(64 - N->getZExtValue());
}]>;
multiclass bmi_rotate<string asm, RegisterClass RC, X86MemOperand x86memop> {
let neverHasSideEffects = 1 in {
def ri : Ii8<0xF0, MRMSrcReg, (outs RC:$dst), (ins RC:$src1, i8imm:$src2),
!strconcat(asm, "\t{$src2, $src1, $dst|$dst, $src1, $src2}"),
[]>, TAXD, VEX, Sched<[WriteShift]>;
let mayLoad = 1 in
def mi : Ii8<0xF0, MRMSrcMem, (outs RC:$dst),
(ins x86memop:$src1, i8imm:$src2),
!strconcat(asm, "\t{$src2, $src1, $dst|$dst, $src1, $src2}"),
[]>, TAXD, VEX, Sched<[WriteShiftLd]>;
}
}
multiclass bmi_shift<string asm, RegisterClass RC, X86MemOperand x86memop> {
let neverHasSideEffects = 1 in {
def rr : I<0xF7, MRMSrcReg, (outs RC:$dst), (ins RC:$src1, RC:$src2),
!strconcat(asm, "\t{$src2, $src1, $dst|$dst, $src1, $src2}"), []>,
VEX_4VOp3, Sched<[WriteShift]>;
let mayLoad = 1 in
def rm : I<0xF7, MRMSrcMem, (outs RC:$dst), (ins x86memop:$src1, RC:$src2),
!strconcat(asm, "\t{$src2, $src1, $dst|$dst, $src1, $src2}"), []>,
VEX_4VOp3,
Sched<[WriteShiftLd,
// x86memop:$src1
ReadDefault, ReadDefault, ReadDefault, ReadDefault,
ReadDefault,
// RC:$src1
ReadAfterLd]>;
}
}
let Predicates = [HasBMI2] in {
defm RORX32 : bmi_rotate<"rorx{l}", GR32, i32mem>;
defm RORX64 : bmi_rotate<"rorx{q}", GR64, i64mem>, VEX_W;
defm SARX32 : bmi_shift<"sarx{l}", GR32, i32mem>, T8XS;
defm SARX64 : bmi_shift<"sarx{q}", GR64, i64mem>, T8XS, VEX_W;
defm SHRX32 : bmi_shift<"shrx{l}", GR32, i32mem>, T8XD;
defm SHRX64 : bmi_shift<"shrx{q}", GR64, i64mem>, T8XD, VEX_W;
defm SHLX32 : bmi_shift<"shlx{l}", GR32, i32mem>, T8PD;
defm SHLX64 : bmi_shift<"shlx{q}", GR64, i64mem>, T8PD, VEX_W;
// Prefer RORX which is non-destructive and doesn't update EFLAGS.
let AddedComplexity = 10 in {
def : Pat<(rotl GR32:$src, (i8 imm:$shamt)),
(RORX32ri GR32:$src, (ROT32L2R_imm8 imm:$shamt))>;
def : Pat<(rotl GR64:$src, (i8 imm:$shamt)),
(RORX64ri GR64:$src, (ROT64L2R_imm8 imm:$shamt))>;
}
def : Pat<(rotl (loadi32 addr:$src), (i8 imm:$shamt)),
(RORX32mi addr:$src, (ROT32L2R_imm8 imm:$shamt))>;
def : Pat<(rotl (loadi64 addr:$src), (i8 imm:$shamt)),
(RORX64mi addr:$src, (ROT64L2R_imm8 imm:$shamt))>;
// Prefer SARX/SHRX/SHLX over SAR/SHR/SHL with variable shift BUT not
// immedidate shift, i.e. the following code is considered better
//
// mov %edi, %esi
// shl $imm, %esi
// ... %edi, ...
//
// than
//
// movb $imm, %sil
// shlx %sil, %edi, %esi
// ... %edi, ...
//
let AddedComplexity = 1 in {
def : Pat<(sra GR32:$src1, GR8:$src2),
(SARX32rr GR32:$src1,
(INSERT_SUBREG
(i32 (IMPLICIT_DEF)), GR8:$src2, sub_8bit))>;
def : Pat<(sra GR64:$src1, GR8:$src2),
(SARX64rr GR64:$src1,
(INSERT_SUBREG
(i64 (IMPLICIT_DEF)), GR8:$src2, sub_8bit))>;
def : Pat<(srl GR32:$src1, GR8:$src2),
(SHRX32rr GR32:$src1,
(INSERT_SUBREG
(i32 (IMPLICIT_DEF)), GR8:$src2, sub_8bit))>;
def : Pat<(srl GR64:$src1, GR8:$src2),
(SHRX64rr GR64:$src1,
(INSERT_SUBREG
(i64 (IMPLICIT_DEF)), GR8:$src2, sub_8bit))>;
def : Pat<(shl GR32:$src1, GR8:$src2),
(SHLX32rr GR32:$src1,
(INSERT_SUBREG
(i32 (IMPLICIT_DEF)), GR8:$src2, sub_8bit))>;
def : Pat<(shl GR64:$src1, GR8:$src2),
(SHLX64rr GR64:$src1,
(INSERT_SUBREG
(i64 (IMPLICIT_DEF)), GR8:$src2, sub_8bit))>;
}
// Patterns on SARXrm/SHRXrm/SHLXrm are explicitly omitted to favor
//
// mov (%ecx), %esi
// shl $imm, $esi
//
// over
//
// movb $imm %al
// shlx %al, (%ecx), %esi
//
// As SARXrr/SHRXrr/SHLXrr is favored on variable shift, the peephole
// optimization will fold them into SARXrm/SHRXrm/SHLXrm if possible.
}
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