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5379c4a713
Haswell CPUs have special support for SHLD/SHRD with the same register for both sources. Such an instruction will go to the rotate/shift unit on port 0 or 6. This gives it 1 cycle latency and 0.5 cycle reciprocal throughput. When the register is not the same, it becomes a 3 cycle operation on port 1. Sandybridge and Ivybridge always have 1 cyc latency and 0.5 cycle reciprocal throughput for any SHLD. When FastSHLDRotate feature flag is set, we try to use SHLD for rotate by immediate unless BMI2 is enabled. But MachineCopyPropagation can look through a copy and change one of the sources to be different. This will break the hardware optimization. This patch adds psuedo instruction to hide the second source input until after register allocation and MachineCopyPropagation. I'm not sure if this is the best way to do this or if there's some other way we can make this work. Fixes PR41055 Differential Revision: https://reviews.llvm.org/D59391 llvm-svn: 357096
1016 lines
49 KiB
TableGen
1016 lines
49 KiB
TableGen
//===-- X86InstrShiftRotate.td - Shift and Rotate Instrs ---*- tablegen -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file describes the shift and rotate instructions.
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//
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//===----------------------------------------------------------------------===//
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// FIXME: Someone needs to smear multipattern goodness all over this file.
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let Defs = [EFLAGS] in {
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let Constraints = "$src1 = $dst", SchedRW = [WriteShift] in {
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let Uses = [CL], SchedRW = [WriteShiftCL] in {
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def SHL8rCL : I<0xD2, MRM4r, (outs GR8 :$dst), (ins GR8 :$src1),
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"shl{b}\t{%cl, $dst|$dst, cl}",
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[(set GR8:$dst, (shl GR8:$src1, CL))]>;
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def SHL16rCL : I<0xD3, MRM4r, (outs GR16:$dst), (ins GR16:$src1),
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"shl{w}\t{%cl, $dst|$dst, cl}",
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[(set GR16:$dst, (shl GR16:$src1, CL))]>, OpSize16;
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def SHL32rCL : I<0xD3, MRM4r, (outs GR32:$dst), (ins GR32:$src1),
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"shl{l}\t{%cl, $dst|$dst, cl}",
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[(set GR32:$dst, (shl GR32:$src1, CL))]>, OpSize32;
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def SHL64rCL : RI<0xD3, MRM4r, (outs GR64:$dst), (ins GR64:$src1),
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"shl{q}\t{%cl, $dst|$dst, cl}",
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[(set GR64:$dst, (shl GR64:$src1, CL))]>;
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} // Uses = [CL], SchedRW
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let isConvertibleToThreeAddress = 1 in { // Can transform into LEA.
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def SHL8ri : Ii8<0xC0, MRM4r, (outs GR8 :$dst), (ins GR8 :$src1, u8imm:$src2),
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"shl{b}\t{$src2, $dst|$dst, $src2}",
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[(set GR8:$dst, (shl GR8:$src1, (i8 imm:$src2)))]>;
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def SHL16ri : Ii8<0xC1, MRM4r, (outs GR16:$dst), (ins GR16:$src1, u8imm:$src2),
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"shl{w}\t{$src2, $dst|$dst, $src2}",
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[(set GR16:$dst, (shl GR16:$src1, (i8 imm:$src2)))]>,
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OpSize16;
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def SHL32ri : Ii8<0xC1, MRM4r, (outs GR32:$dst), (ins GR32:$src1, u8imm:$src2),
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"shl{l}\t{$src2, $dst|$dst, $src2}",
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[(set GR32:$dst, (shl GR32:$src1, (i8 imm:$src2)))]>,
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OpSize32;
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def SHL64ri : RIi8<0xC1, MRM4r, (outs GR64:$dst),
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(ins GR64:$src1, u8imm:$src2),
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"shl{q}\t{$src2, $dst|$dst, $src2}",
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[(set GR64:$dst, (shl GR64:$src1, (i8 imm:$src2)))]>;
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} // isConvertibleToThreeAddress = 1
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// NOTE: We don't include patterns for shifts of a register by one, because
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// 'add reg,reg' is cheaper (and we have a Pat pattern for shift-by-one).
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let hasSideEffects = 0 in {
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def SHL8r1 : I<0xD0, MRM4r, (outs GR8:$dst), (ins GR8:$src1),
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"shl{b}\t$dst", []>;
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def SHL16r1 : I<0xD1, MRM4r, (outs GR16:$dst), (ins GR16:$src1),
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"shl{w}\t$dst", []>, OpSize16;
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def SHL32r1 : I<0xD1, MRM4r, (outs GR32:$dst), (ins GR32:$src1),
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"shl{l}\t$dst", []>, OpSize32;
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def SHL64r1 : RI<0xD1, MRM4r, (outs GR64:$dst), (ins GR64:$src1),
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"shl{q}\t$dst", []>;
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} // hasSideEffects = 0
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} // Constraints = "$src = $dst", SchedRW
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// FIXME: Why do we need an explicit "Uses = [CL]" when the instr has a pattern
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// using CL?
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let Uses = [CL], SchedRW = [WriteShiftCLLd, WriteRMW] in {
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def SHL8mCL : I<0xD2, MRM4m, (outs), (ins i8mem :$dst),
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"shl{b}\t{%cl, $dst|$dst, cl}",
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[(store (shl (loadi8 addr:$dst), CL), addr:$dst)]>;
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def SHL16mCL : I<0xD3, MRM4m, (outs), (ins i16mem:$dst),
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"shl{w}\t{%cl, $dst|$dst, cl}",
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[(store (shl (loadi16 addr:$dst), CL), addr:$dst)]>,
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OpSize16;
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def SHL32mCL : I<0xD3, MRM4m, (outs), (ins i32mem:$dst),
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"shl{l}\t{%cl, $dst|$dst, cl}",
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[(store (shl (loadi32 addr:$dst), CL), addr:$dst)]>,
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OpSize32;
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def SHL64mCL : RI<0xD3, MRM4m, (outs), (ins i64mem:$dst),
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"shl{q}\t{%cl, $dst|$dst, cl}",
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[(store (shl (loadi64 addr:$dst), CL), addr:$dst)]>,
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Requires<[In64BitMode]>;
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}
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let SchedRW = [WriteShiftLd, WriteRMW] in {
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def SHL8mi : Ii8<0xC0, MRM4m, (outs), (ins i8mem :$dst, u8imm:$src),
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"shl{b}\t{$src, $dst|$dst, $src}",
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[(store (shl (loadi8 addr:$dst), (i8 imm:$src)), addr:$dst)]>;
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def SHL16mi : Ii8<0xC1, MRM4m, (outs), (ins i16mem:$dst, u8imm:$src),
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"shl{w}\t{$src, $dst|$dst, $src}",
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[(store (shl (loadi16 addr:$dst), (i8 imm:$src)), addr:$dst)]>,
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OpSize16;
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def SHL32mi : Ii8<0xC1, MRM4m, (outs), (ins i32mem:$dst, u8imm:$src),
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"shl{l}\t{$src, $dst|$dst, $src}",
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[(store (shl (loadi32 addr:$dst), (i8 imm:$src)), addr:$dst)]>,
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OpSize32;
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def SHL64mi : RIi8<0xC1, MRM4m, (outs), (ins i64mem:$dst, u8imm:$src),
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"shl{q}\t{$src, $dst|$dst, $src}",
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[(store (shl (loadi64 addr:$dst), (i8 imm:$src)), addr:$dst)]>,
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Requires<[In64BitMode]>;
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// Shift by 1
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def SHL8m1 : I<0xD0, MRM4m, (outs), (ins i8mem :$dst),
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"shl{b}\t$dst",
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[(store (shl (loadi8 addr:$dst), (i8 1)), addr:$dst)]>;
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def SHL16m1 : I<0xD1, MRM4m, (outs), (ins i16mem:$dst),
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"shl{w}\t$dst",
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[(store (shl (loadi16 addr:$dst), (i8 1)), addr:$dst)]>,
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OpSize16;
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def SHL32m1 : I<0xD1, MRM4m, (outs), (ins i32mem:$dst),
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"shl{l}\t$dst",
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[(store (shl (loadi32 addr:$dst), (i8 1)), addr:$dst)]>,
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OpSize32;
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def SHL64m1 : RI<0xD1, MRM4m, (outs), (ins i64mem:$dst),
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"shl{q}\t$dst",
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[(store (shl (loadi64 addr:$dst), (i8 1)), addr:$dst)]>,
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Requires<[In64BitMode]>;
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} // SchedRW
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let Constraints = "$src1 = $dst", SchedRW = [WriteShift] in {
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let Uses = [CL], SchedRW = [WriteShiftCL] in {
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def SHR8rCL : I<0xD2, MRM5r, (outs GR8 :$dst), (ins GR8 :$src1),
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"shr{b}\t{%cl, $dst|$dst, cl}",
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[(set GR8:$dst, (srl GR8:$src1, CL))]>;
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def SHR16rCL : I<0xD3, MRM5r, (outs GR16:$dst), (ins GR16:$src1),
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"shr{w}\t{%cl, $dst|$dst, cl}",
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[(set GR16:$dst, (srl GR16:$src1, CL))]>, OpSize16;
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def SHR32rCL : I<0xD3, MRM5r, (outs GR32:$dst), (ins GR32:$src1),
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"shr{l}\t{%cl, $dst|$dst, cl}",
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[(set GR32:$dst, (srl GR32:$src1, CL))]>, OpSize32;
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def SHR64rCL : RI<0xD3, MRM5r, (outs GR64:$dst), (ins GR64:$src1),
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"shr{q}\t{%cl, $dst|$dst, cl}",
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[(set GR64:$dst, (srl GR64:$src1, CL))]>;
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}
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def SHR8ri : Ii8<0xC0, MRM5r, (outs GR8:$dst), (ins GR8:$src1, u8imm:$src2),
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"shr{b}\t{$src2, $dst|$dst, $src2}",
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[(set GR8:$dst, (srl GR8:$src1, (i8 imm:$src2)))]>;
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def SHR16ri : Ii8<0xC1, MRM5r, (outs GR16:$dst), (ins GR16:$src1, u8imm:$src2),
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"shr{w}\t{$src2, $dst|$dst, $src2}",
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[(set GR16:$dst, (srl GR16:$src1, (i8 imm:$src2)))]>,
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OpSize16;
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def SHR32ri : Ii8<0xC1, MRM5r, (outs GR32:$dst), (ins GR32:$src1, u8imm:$src2),
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"shr{l}\t{$src2, $dst|$dst, $src2}",
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[(set GR32:$dst, (srl GR32:$src1, (i8 imm:$src2)))]>,
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OpSize32;
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def SHR64ri : RIi8<0xC1, MRM5r, (outs GR64:$dst), (ins GR64:$src1, u8imm:$src2),
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"shr{q}\t{$src2, $dst|$dst, $src2}",
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[(set GR64:$dst, (srl GR64:$src1, (i8 imm:$src2)))]>;
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// Shift right by 1
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def SHR8r1 : I<0xD0, MRM5r, (outs GR8:$dst), (ins GR8:$src1),
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"shr{b}\t$dst",
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[(set GR8:$dst, (srl GR8:$src1, (i8 1)))]>;
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def SHR16r1 : I<0xD1, MRM5r, (outs GR16:$dst), (ins GR16:$src1),
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"shr{w}\t$dst",
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[(set GR16:$dst, (srl GR16:$src1, (i8 1)))]>, OpSize16;
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def SHR32r1 : I<0xD1, MRM5r, (outs GR32:$dst), (ins GR32:$src1),
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"shr{l}\t$dst",
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[(set GR32:$dst, (srl GR32:$src1, (i8 1)))]>, OpSize32;
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def SHR64r1 : RI<0xD1, MRM5r, (outs GR64:$dst), (ins GR64:$src1),
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"shr{q}\t$dst",
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[(set GR64:$dst, (srl GR64:$src1, (i8 1)))]>;
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} // Constraints = "$src = $dst", SchedRW
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let Uses = [CL], SchedRW = [WriteShiftCLLd, WriteRMW] in {
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def SHR8mCL : I<0xD2, MRM5m, (outs), (ins i8mem :$dst),
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"shr{b}\t{%cl, $dst|$dst, cl}",
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[(store (srl (loadi8 addr:$dst), CL), addr:$dst)]>;
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def SHR16mCL : I<0xD3, MRM5m, (outs), (ins i16mem:$dst),
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"shr{w}\t{%cl, $dst|$dst, cl}",
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[(store (srl (loadi16 addr:$dst), CL), addr:$dst)]>,
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OpSize16;
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def SHR32mCL : I<0xD3, MRM5m, (outs), (ins i32mem:$dst),
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"shr{l}\t{%cl, $dst|$dst, cl}",
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[(store (srl (loadi32 addr:$dst), CL), addr:$dst)]>,
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OpSize32;
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def SHR64mCL : RI<0xD3, MRM5m, (outs), (ins i64mem:$dst),
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"shr{q}\t{%cl, $dst|$dst, cl}",
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[(store (srl (loadi64 addr:$dst), CL), addr:$dst)]>,
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Requires<[In64BitMode]>;
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}
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let SchedRW = [WriteShiftLd, WriteRMW] in {
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def SHR8mi : Ii8<0xC0, MRM5m, (outs), (ins i8mem :$dst, u8imm:$src),
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"shr{b}\t{$src, $dst|$dst, $src}",
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[(store (srl (loadi8 addr:$dst), (i8 imm:$src)), addr:$dst)]>;
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def SHR16mi : Ii8<0xC1, MRM5m, (outs), (ins i16mem:$dst, u8imm:$src),
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"shr{w}\t{$src, $dst|$dst, $src}",
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[(store (srl (loadi16 addr:$dst), (i8 imm:$src)), addr:$dst)]>,
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OpSize16;
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def SHR32mi : Ii8<0xC1, MRM5m, (outs), (ins i32mem:$dst, u8imm:$src),
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"shr{l}\t{$src, $dst|$dst, $src}",
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[(store (srl (loadi32 addr:$dst), (i8 imm:$src)), addr:$dst)]>,
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OpSize32;
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def SHR64mi : RIi8<0xC1, MRM5m, (outs), (ins i64mem:$dst, u8imm:$src),
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"shr{q}\t{$src, $dst|$dst, $src}",
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[(store (srl (loadi64 addr:$dst), (i8 imm:$src)), addr:$dst)]>,
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Requires<[In64BitMode]>;
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// Shift by 1
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def SHR8m1 : I<0xD0, MRM5m, (outs), (ins i8mem :$dst),
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"shr{b}\t$dst",
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[(store (srl (loadi8 addr:$dst), (i8 1)), addr:$dst)]>;
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def SHR16m1 : I<0xD1, MRM5m, (outs), (ins i16mem:$dst),
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"shr{w}\t$dst",
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[(store (srl (loadi16 addr:$dst), (i8 1)), addr:$dst)]>,
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OpSize16;
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def SHR32m1 : I<0xD1, MRM5m, (outs), (ins i32mem:$dst),
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"shr{l}\t$dst",
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[(store (srl (loadi32 addr:$dst), (i8 1)), addr:$dst)]>,
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OpSize32;
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def SHR64m1 : RI<0xD1, MRM5m, (outs), (ins i64mem:$dst),
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"shr{q}\t$dst",
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[(store (srl (loadi64 addr:$dst), (i8 1)), addr:$dst)]>,
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Requires<[In64BitMode]>;
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} // SchedRW
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let Constraints = "$src1 = $dst", SchedRW = [WriteShift] in {
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let Uses = [CL], SchedRW = [WriteShiftCL] in {
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def SAR8rCL : I<0xD2, MRM7r, (outs GR8 :$dst), (ins GR8 :$src1),
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"sar{b}\t{%cl, $dst|$dst, cl}",
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[(set GR8:$dst, (sra GR8:$src1, CL))]>;
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def SAR16rCL : I<0xD3, MRM7r, (outs GR16:$dst), (ins GR16:$src1),
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"sar{w}\t{%cl, $dst|$dst, cl}",
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[(set GR16:$dst, (sra GR16:$src1, CL))]>,
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OpSize16;
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def SAR32rCL : I<0xD3, MRM7r, (outs GR32:$dst), (ins GR32:$src1),
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"sar{l}\t{%cl, $dst|$dst, cl}",
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[(set GR32:$dst, (sra GR32:$src1, CL))]>,
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OpSize32;
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def SAR64rCL : RI<0xD3, MRM7r, (outs GR64:$dst), (ins GR64:$src1),
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"sar{q}\t{%cl, $dst|$dst, cl}",
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[(set GR64:$dst, (sra GR64:$src1, CL))]>;
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}
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def SAR8ri : Ii8<0xC0, MRM7r, (outs GR8 :$dst), (ins GR8 :$src1, u8imm:$src2),
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"sar{b}\t{$src2, $dst|$dst, $src2}",
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[(set GR8:$dst, (sra GR8:$src1, (i8 imm:$src2)))]>;
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def SAR16ri : Ii8<0xC1, MRM7r, (outs GR16:$dst), (ins GR16:$src1, u8imm:$src2),
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"sar{w}\t{$src2, $dst|$dst, $src2}",
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[(set GR16:$dst, (sra GR16:$src1, (i8 imm:$src2)))]>,
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OpSize16;
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def SAR32ri : Ii8<0xC1, MRM7r, (outs GR32:$dst), (ins GR32:$src1, u8imm:$src2),
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"sar{l}\t{$src2, $dst|$dst, $src2}",
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[(set GR32:$dst, (sra GR32:$src1, (i8 imm:$src2)))]>,
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OpSize32;
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def SAR64ri : RIi8<0xC1, MRM7r, (outs GR64:$dst),
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(ins GR64:$src1, u8imm:$src2),
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"sar{q}\t{$src2, $dst|$dst, $src2}",
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[(set GR64:$dst, (sra GR64:$src1, (i8 imm:$src2)))]>;
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// Shift by 1
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def SAR8r1 : I<0xD0, MRM7r, (outs GR8 :$dst), (ins GR8 :$src1),
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"sar{b}\t$dst",
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[(set GR8:$dst, (sra GR8:$src1, (i8 1)))]>;
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def SAR16r1 : I<0xD1, MRM7r, (outs GR16:$dst), (ins GR16:$src1),
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"sar{w}\t$dst",
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[(set GR16:$dst, (sra GR16:$src1, (i8 1)))]>, OpSize16;
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def SAR32r1 : I<0xD1, MRM7r, (outs GR32:$dst), (ins GR32:$src1),
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"sar{l}\t$dst",
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[(set GR32:$dst, (sra GR32:$src1, (i8 1)))]>, OpSize32;
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def SAR64r1 : RI<0xD1, MRM7r, (outs GR64:$dst), (ins GR64:$src1),
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"sar{q}\t$dst",
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[(set GR64:$dst, (sra GR64:$src1, (i8 1)))]>;
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} // Constraints = "$src = $dst", SchedRW
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let Uses = [CL], SchedRW = [WriteShiftCLLd, WriteRMW] in {
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def SAR8mCL : I<0xD2, MRM7m, (outs), (ins i8mem :$dst),
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"sar{b}\t{%cl, $dst|$dst, cl}",
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[(store (sra (loadi8 addr:$dst), CL), addr:$dst)]>;
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def SAR16mCL : I<0xD3, MRM7m, (outs), (ins i16mem:$dst),
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"sar{w}\t{%cl, $dst|$dst, cl}",
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[(store (sra (loadi16 addr:$dst), CL), addr:$dst)]>,
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OpSize16;
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def SAR32mCL : I<0xD3, MRM7m, (outs), (ins i32mem:$dst),
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"sar{l}\t{%cl, $dst|$dst, cl}",
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[(store (sra (loadi32 addr:$dst), CL), addr:$dst)]>,
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OpSize32;
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def SAR64mCL : RI<0xD3, MRM7m, (outs), (ins i64mem:$dst),
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"sar{q}\t{%cl, $dst|$dst, cl}",
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[(store (sra (loadi64 addr:$dst), CL), addr:$dst)]>,
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Requires<[In64BitMode]>;
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}
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let SchedRW = [WriteShiftLd, WriteRMW] in {
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def SAR8mi : Ii8<0xC0, MRM7m, (outs), (ins i8mem :$dst, u8imm:$src),
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"sar{b}\t{$src, $dst|$dst, $src}",
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[(store (sra (loadi8 addr:$dst), (i8 imm:$src)), addr:$dst)]>;
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def SAR16mi : Ii8<0xC1, MRM7m, (outs), (ins i16mem:$dst, u8imm:$src),
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"sar{w}\t{$src, $dst|$dst, $src}",
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[(store (sra (loadi16 addr:$dst), (i8 imm:$src)), addr:$dst)]>,
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OpSize16;
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def SAR32mi : Ii8<0xC1, MRM7m, (outs), (ins i32mem:$dst, u8imm:$src),
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"sar{l}\t{$src, $dst|$dst, $src}",
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[(store (sra (loadi32 addr:$dst), (i8 imm:$src)), addr:$dst)]>,
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OpSize32;
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def SAR64mi : RIi8<0xC1, MRM7m, (outs), (ins i64mem:$dst, u8imm:$src),
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"sar{q}\t{$src, $dst|$dst, $src}",
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|
[(store (sra (loadi64 addr:$dst), (i8 imm:$src)), addr:$dst)]>,
|
|
Requires<[In64BitMode]>;
|
|
|
|
// 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)]>;
|
|
def SAR16m1 : I<0xD1, MRM7m, (outs), (ins i16mem:$dst),
|
|
"sar{w}\t$dst",
|
|
[(store (sra (loadi16 addr:$dst), (i8 1)), addr:$dst)]>,
|
|
OpSize16;
|
|
def SAR32m1 : I<0xD1, MRM7m, (outs), (ins i32mem:$dst),
|
|
"sar{l}\t$dst",
|
|
[(store (sra (loadi32 addr:$dst), (i8 1)), addr:$dst)]>,
|
|
OpSize32;
|
|
def SAR64m1 : RI<0xD1, MRM7m, (outs), (ins i64mem:$dst),
|
|
"sar{q}\t$dst",
|
|
[(store (sra (loadi64 addr:$dst), (i8 1)), addr:$dst)]>,
|
|
Requires<[In64BitMode]>;
|
|
} // SchedRW
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Rotate instructions
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
let hasSideEffects = 0 in {
|
|
let Constraints = "$src1 = $dst", SchedRW = [WriteRotate] in {
|
|
|
|
let Uses = [CL, EFLAGS], SchedRW = [WriteRotateCL] in {
|
|
def RCL8rCL : I<0xD2, MRM2r, (outs GR8:$dst), (ins GR8:$src1),
|
|
"rcl{b}\t{%cl, $dst|$dst, cl}", []>;
|
|
def RCL16rCL : I<0xD3, MRM2r, (outs GR16:$dst), (ins GR16:$src1),
|
|
"rcl{w}\t{%cl, $dst|$dst, cl}", []>, OpSize16;
|
|
def RCL32rCL : I<0xD3, MRM2r, (outs GR32:$dst), (ins GR32:$src1),
|
|
"rcl{l}\t{%cl, $dst|$dst, cl}", []>, OpSize32;
|
|
def RCL64rCL : RI<0xD3, MRM2r, (outs GR64:$dst), (ins GR64:$src1),
|
|
"rcl{q}\t{%cl, $dst|$dst, cl}", []>;
|
|
} // Uses = [CL, EFLAGS]
|
|
|
|
let Uses = [EFLAGS] in {
|
|
def RCL8r1 : I<0xD0, MRM2r, (outs GR8:$dst), (ins GR8:$src1),
|
|
"rcl{b}\t$dst", []>;
|
|
def RCL8ri : Ii8<0xC0, MRM2r, (outs GR8:$dst), (ins GR8:$src1, u8imm:$cnt),
|
|
"rcl{b}\t{$cnt, $dst|$dst, $cnt}", []>;
|
|
def RCL16r1 : I<0xD1, MRM2r, (outs GR16:$dst), (ins GR16:$src1),
|
|
"rcl{w}\t$dst", []>, OpSize16;
|
|
def RCL16ri : Ii8<0xC1, MRM2r, (outs GR16:$dst), (ins GR16:$src1, u8imm:$cnt),
|
|
"rcl{w}\t{$cnt, $dst|$dst, $cnt}", []>, OpSize16;
|
|
def RCL32r1 : I<0xD1, MRM2r, (outs GR32:$dst), (ins GR32:$src1),
|
|
"rcl{l}\t$dst", []>, OpSize32;
|
|
def RCL32ri : Ii8<0xC1, MRM2r, (outs GR32:$dst), (ins GR32:$src1, u8imm:$cnt),
|
|
"rcl{l}\t{$cnt, $dst|$dst, $cnt}", []>, OpSize32;
|
|
def RCL64r1 : RI<0xD1, MRM2r, (outs GR64:$dst), (ins GR64:$src1),
|
|
"rcl{q}\t$dst", []>;
|
|
def RCL64ri : RIi8<0xC1, MRM2r, (outs GR64:$dst), (ins GR64:$src1, u8imm:$cnt),
|
|
"rcl{q}\t{$cnt, $dst|$dst, $cnt}", []>;
|
|
} // Uses = [EFLAGS]
|
|
|
|
let Uses = [CL, EFLAGS], SchedRW = [WriteRotateCL] in {
|
|
def RCR8rCL : I<0xD2, MRM3r, (outs GR8:$dst), (ins GR8:$src1),
|
|
"rcr{b}\t{%cl, $dst|$dst, cl}", []>;
|
|
def RCR16rCL : I<0xD3, MRM3r, (outs GR16:$dst), (ins GR16:$src1),
|
|
"rcr{w}\t{%cl, $dst|$dst, cl}", []>, OpSize16;
|
|
def RCR32rCL : I<0xD3, MRM3r, (outs GR32:$dst), (ins GR32:$src1),
|
|
"rcr{l}\t{%cl, $dst|$dst, cl}", []>, OpSize32;
|
|
def RCR64rCL : RI<0xD3, MRM3r, (outs GR64:$dst), (ins GR64:$src1),
|
|
"rcr{q}\t{%cl, $dst|$dst, cl}", []>;
|
|
} // Uses = [CL, EFLAGS]
|
|
|
|
let Uses = [EFLAGS] in {
|
|
def RCR8r1 : I<0xD0, MRM3r, (outs GR8:$dst), (ins GR8:$src1),
|
|
"rcr{b}\t$dst", []>;
|
|
def RCR8ri : Ii8<0xC0, MRM3r, (outs GR8:$dst), (ins GR8:$src1, u8imm:$cnt),
|
|
"rcr{b}\t{$cnt, $dst|$dst, $cnt}", []>;
|
|
def RCR16r1 : I<0xD1, MRM3r, (outs GR16:$dst), (ins GR16:$src1),
|
|
"rcr{w}\t$dst", []>, OpSize16;
|
|
def RCR16ri : Ii8<0xC1, MRM3r, (outs GR16:$dst), (ins GR16:$src1, u8imm:$cnt),
|
|
"rcr{w}\t{$cnt, $dst|$dst, $cnt}", []>, OpSize16;
|
|
def RCR32r1 : I<0xD1, MRM3r, (outs GR32:$dst), (ins GR32:$src1),
|
|
"rcr{l}\t$dst", []>, OpSize32;
|
|
def RCR32ri : Ii8<0xC1, MRM3r, (outs GR32:$dst), (ins GR32:$src1, u8imm:$cnt),
|
|
"rcr{l}\t{$cnt, $dst|$dst, $cnt}", []>, OpSize32;
|
|
def RCR64r1 : RI<0xD1, MRM3r, (outs GR64:$dst), (ins GR64:$src1),
|
|
"rcr{q}\t$dst", []>;
|
|
def RCR64ri : RIi8<0xC1, MRM3r, (outs GR64:$dst), (ins GR64:$src1, u8imm:$cnt),
|
|
"rcr{q}\t{$cnt, $dst|$dst, $cnt}", []>;
|
|
} // Uses = [EFLAGS]
|
|
|
|
} // Constraints = "$src = $dst"
|
|
|
|
let SchedRW = [WriteRotateLd, WriteRMW], mayStore = 1 in {
|
|
let Uses = [EFLAGS] in {
|
|
def RCL8m1 : I<0xD0, MRM2m, (outs), (ins i8mem:$dst),
|
|
"rcl{b}\t$dst", []>;
|
|
def RCL8mi : Ii8<0xC0, MRM2m, (outs), (ins i8mem:$dst, u8imm:$cnt),
|
|
"rcl{b}\t{$cnt, $dst|$dst, $cnt}", []>;
|
|
def RCL16m1 : I<0xD1, MRM2m, (outs), (ins i16mem:$dst),
|
|
"rcl{w}\t$dst", []>, OpSize16;
|
|
def RCL16mi : Ii8<0xC1, MRM2m, (outs), (ins i16mem:$dst, u8imm:$cnt),
|
|
"rcl{w}\t{$cnt, $dst|$dst, $cnt}", []>, OpSize16;
|
|
def RCL32m1 : I<0xD1, MRM2m, (outs), (ins i32mem:$dst),
|
|
"rcl{l}\t$dst", []>, OpSize32;
|
|
def RCL32mi : Ii8<0xC1, MRM2m, (outs), (ins i32mem:$dst, u8imm:$cnt),
|
|
"rcl{l}\t{$cnt, $dst|$dst, $cnt}", []>, OpSize32;
|
|
def RCL64m1 : RI<0xD1, MRM2m, (outs), (ins i64mem:$dst),
|
|
"rcl{q}\t$dst", []>, Requires<[In64BitMode]>;
|
|
def RCL64mi : RIi8<0xC1, MRM2m, (outs), (ins i64mem:$dst, u8imm:$cnt),
|
|
"rcl{q}\t{$cnt, $dst|$dst, $cnt}", []>,
|
|
Requires<[In64BitMode]>;
|
|
|
|
def RCR8m1 : I<0xD0, MRM3m, (outs), (ins i8mem:$dst),
|
|
"rcr{b}\t$dst", []>;
|
|
def RCR8mi : Ii8<0xC0, MRM3m, (outs), (ins i8mem:$dst, u8imm:$cnt),
|
|
"rcr{b}\t{$cnt, $dst|$dst, $cnt}", []>;
|
|
def RCR16m1 : I<0xD1, MRM3m, (outs), (ins i16mem:$dst),
|
|
"rcr{w}\t$dst", []>, OpSize16;
|
|
def RCR16mi : Ii8<0xC1, MRM3m, (outs), (ins i16mem:$dst, u8imm:$cnt),
|
|
"rcr{w}\t{$cnt, $dst|$dst, $cnt}", []>, OpSize16;
|
|
def RCR32m1 : I<0xD1, MRM3m, (outs), (ins i32mem:$dst),
|
|
"rcr{l}\t$dst", []>, OpSize32;
|
|
def RCR32mi : Ii8<0xC1, MRM3m, (outs), (ins i32mem:$dst, u8imm:$cnt),
|
|
"rcr{l}\t{$cnt, $dst|$dst, $cnt}", []>, OpSize32;
|
|
def RCR64m1 : RI<0xD1, MRM3m, (outs), (ins i64mem:$dst),
|
|
"rcr{q}\t$dst", []>, Requires<[In64BitMode]>;
|
|
def RCR64mi : RIi8<0xC1, MRM3m, (outs), (ins i64mem:$dst, u8imm:$cnt),
|
|
"rcr{q}\t{$cnt, $dst|$dst, $cnt}", []>,
|
|
Requires<[In64BitMode]>;
|
|
} // Uses = [EFLAGS]
|
|
|
|
let Uses = [CL, EFLAGS], SchedRW = [WriteRotateCLLd, WriteRMW] in {
|
|
def RCL8mCL : I<0xD2, MRM2m, (outs), (ins i8mem:$dst),
|
|
"rcl{b}\t{%cl, $dst|$dst, cl}", []>;
|
|
def RCL16mCL : I<0xD3, MRM2m, (outs), (ins i16mem:$dst),
|
|
"rcl{w}\t{%cl, $dst|$dst, cl}", []>, OpSize16;
|
|
def RCL32mCL : I<0xD3, MRM2m, (outs), (ins i32mem:$dst),
|
|
"rcl{l}\t{%cl, $dst|$dst, cl}", []>, OpSize32;
|
|
def RCL64mCL : RI<0xD3, MRM2m, (outs), (ins i64mem:$dst),
|
|
"rcl{q}\t{%cl, $dst|$dst, cl}", []>,
|
|
Requires<[In64BitMode]>;
|
|
|
|
def RCR8mCL : I<0xD2, MRM3m, (outs), (ins i8mem:$dst),
|
|
"rcr{b}\t{%cl, $dst|$dst, cl}", []>;
|
|
def RCR16mCL : I<0xD3, MRM3m, (outs), (ins i16mem:$dst),
|
|
"rcr{w}\t{%cl, $dst|$dst, cl}", []>, OpSize16;
|
|
def RCR32mCL : I<0xD3, MRM3m, (outs), (ins i32mem:$dst),
|
|
"rcr{l}\t{%cl, $dst|$dst, cl}", []>, OpSize32;
|
|
def RCR64mCL : RI<0xD3, MRM3m, (outs), (ins i64mem:$dst),
|
|
"rcr{q}\t{%cl, $dst|$dst, cl}", []>,
|
|
Requires<[In64BitMode]>;
|
|
} // Uses = [CL, EFLAGS]
|
|
} // SchedRW
|
|
} // hasSideEffects = 0
|
|
|
|
let Constraints = "$src1 = $dst", SchedRW = [WriteRotate] in {
|
|
// FIXME: provide shorter instructions when imm8 == 1
|
|
let Uses = [CL], SchedRW = [WriteRotateCL] in {
|
|
def ROL8rCL : I<0xD2, MRM0r, (outs GR8 :$dst), (ins GR8 :$src1),
|
|
"rol{b}\t{%cl, $dst|$dst, cl}",
|
|
[(set GR8:$dst, (rotl GR8:$src1, CL))]>;
|
|
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))]>, 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))]>, 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))]>;
|
|
}
|
|
|
|
def ROL8ri : Ii8<0xC0, MRM0r, (outs GR8 :$dst), (ins GR8 :$src1, u8imm:$src2),
|
|
"rol{b}\t{$src2, $dst|$dst, $src2}",
|
|
[(set GR8:$dst, (rotl GR8:$src1, (i8 relocImm:$src2)))]>;
|
|
def ROL16ri : Ii8<0xC1, MRM0r, (outs GR16:$dst), (ins GR16:$src1, u8imm:$src2),
|
|
"rol{w}\t{$src2, $dst|$dst, $src2}",
|
|
[(set GR16:$dst, (rotl GR16:$src1, (i8 relocImm:$src2)))]>,
|
|
OpSize16;
|
|
def ROL32ri : Ii8<0xC1, MRM0r, (outs GR32:$dst), (ins GR32:$src1, u8imm:$src2),
|
|
"rol{l}\t{$src2, $dst|$dst, $src2}",
|
|
[(set GR32:$dst, (rotl GR32:$src1, (i8 relocImm:$src2)))]>,
|
|
OpSize32;
|
|
def ROL64ri : RIi8<0xC1, MRM0r, (outs GR64:$dst),
|
|
(ins GR64:$src1, u8imm:$src2),
|
|
"rol{q}\t{$src2, $dst|$dst, $src2}",
|
|
[(set GR64:$dst, (rotl GR64:$src1, (i8 relocImm:$src2)))]>;
|
|
|
|
// Rotate by 1
|
|
def ROL8r1 : I<0xD0, MRM0r, (outs GR8 :$dst), (ins GR8 :$src1),
|
|
"rol{b}\t$dst",
|
|
[(set GR8:$dst, (rotl GR8:$src1, (i8 1)))]>;
|
|
def ROL16r1 : I<0xD1, MRM0r, (outs GR16:$dst), (ins GR16:$src1),
|
|
"rol{w}\t$dst",
|
|
[(set GR16:$dst, (rotl GR16:$src1, (i8 1)))]>, OpSize16;
|
|
def ROL32r1 : I<0xD1, MRM0r, (outs GR32:$dst), (ins GR32:$src1),
|
|
"rol{l}\t$dst",
|
|
[(set GR32:$dst, (rotl GR32:$src1, (i8 1)))]>, OpSize32;
|
|
def ROL64r1 : RI<0xD1, MRM0r, (outs GR64:$dst), (ins GR64:$src1),
|
|
"rol{q}\t$dst",
|
|
[(set GR64:$dst, (rotl GR64:$src1, (i8 1)))]>;
|
|
} // Constraints = "$src = $dst", SchedRW
|
|
|
|
let Uses = [CL], SchedRW = [WriteRotateCLLd, WriteRMW] in {
|
|
def ROL8mCL : I<0xD2, MRM0m, (outs), (ins i8mem :$dst),
|
|
"rol{b}\t{%cl, $dst|$dst, cl}",
|
|
[(store (rotl (loadi8 addr:$dst), CL), addr:$dst)]>;
|
|
def ROL16mCL : I<0xD3, MRM0m, (outs), (ins i16mem:$dst),
|
|
"rol{w}\t{%cl, $dst|$dst, cl}",
|
|
[(store (rotl (loadi16 addr:$dst), CL), addr:$dst)]>, 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)]>, 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)]>,
|
|
Requires<[In64BitMode]>;
|
|
}
|
|
|
|
let SchedRW = [WriteRotateLd, WriteRMW] in {
|
|
def ROL8mi : Ii8<0xC0, MRM0m, (outs), (ins i8mem :$dst, u8imm:$src1),
|
|
"rol{b}\t{$src1, $dst|$dst, $src1}",
|
|
[(store (rotl (loadi8 addr:$dst), (i8 imm:$src1)), addr:$dst)]>;
|
|
def ROL16mi : Ii8<0xC1, MRM0m, (outs), (ins i16mem:$dst, u8imm:$src1),
|
|
"rol{w}\t{$src1, $dst|$dst, $src1}",
|
|
[(store (rotl (loadi16 addr:$dst), (i8 imm:$src1)), addr:$dst)]>,
|
|
OpSize16;
|
|
def ROL32mi : Ii8<0xC1, MRM0m, (outs), (ins i32mem:$dst, u8imm:$src1),
|
|
"rol{l}\t{$src1, $dst|$dst, $src1}",
|
|
[(store (rotl (loadi32 addr:$dst), (i8 imm:$src1)), addr:$dst)]>,
|
|
OpSize32;
|
|
def ROL64mi : RIi8<0xC1, MRM0m, (outs), (ins i64mem:$dst, u8imm:$src1),
|
|
"rol{q}\t{$src1, $dst|$dst, $src1}",
|
|
[(store (rotl (loadi64 addr:$dst), (i8 imm:$src1)), addr:$dst)]>,
|
|
Requires<[In64BitMode]>;
|
|
|
|
// 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)]>;
|
|
def ROL16m1 : I<0xD1, MRM0m, (outs), (ins i16mem:$dst),
|
|
"rol{w}\t$dst",
|
|
[(store (rotl (loadi16 addr:$dst), (i8 1)), addr:$dst)]>,
|
|
OpSize16;
|
|
def ROL32m1 : I<0xD1, MRM0m, (outs), (ins i32mem:$dst),
|
|
"rol{l}\t$dst",
|
|
[(store (rotl (loadi32 addr:$dst), (i8 1)), addr:$dst)]>,
|
|
OpSize32;
|
|
def ROL64m1 : RI<0xD1, MRM0m, (outs), (ins i64mem:$dst),
|
|
"rol{q}\t$dst",
|
|
[(store (rotl (loadi64 addr:$dst), (i8 1)), addr:$dst)]>,
|
|
Requires<[In64BitMode]>;
|
|
} // SchedRW
|
|
|
|
let Constraints = "$src1 = $dst", SchedRW = [WriteRotate] in {
|
|
let Uses = [CL], SchedRW = [WriteRotateCL] in {
|
|
def ROR8rCL : I<0xD2, MRM1r, (outs GR8 :$dst), (ins GR8 :$src1),
|
|
"ror{b}\t{%cl, $dst|$dst, cl}",
|
|
[(set GR8:$dst, (rotr GR8:$src1, CL))]>;
|
|
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))]>, 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))]>, 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))]>;
|
|
}
|
|
|
|
def ROR8ri : Ii8<0xC0, MRM1r, (outs GR8 :$dst), (ins GR8 :$src1, u8imm:$src2),
|
|
"ror{b}\t{$src2, $dst|$dst, $src2}",
|
|
[(set GR8:$dst, (rotr GR8:$src1, (i8 relocImm:$src2)))]>;
|
|
def ROR16ri : Ii8<0xC1, MRM1r, (outs GR16:$dst), (ins GR16:$src1, u8imm:$src2),
|
|
"ror{w}\t{$src2, $dst|$dst, $src2}",
|
|
[(set GR16:$dst, (rotr GR16:$src1, (i8 relocImm:$src2)))]>,
|
|
OpSize16;
|
|
def ROR32ri : Ii8<0xC1, MRM1r, (outs GR32:$dst), (ins GR32:$src1, u8imm:$src2),
|
|
"ror{l}\t{$src2, $dst|$dst, $src2}",
|
|
[(set GR32:$dst, (rotr GR32:$src1, (i8 relocImm:$src2)))]>,
|
|
OpSize32;
|
|
def ROR64ri : RIi8<0xC1, MRM1r, (outs GR64:$dst),
|
|
(ins GR64:$src1, u8imm:$src2),
|
|
"ror{q}\t{$src2, $dst|$dst, $src2}",
|
|
[(set GR64:$dst, (rotr GR64:$src1, (i8 relocImm:$src2)))]>;
|
|
|
|
// Rotate by 1
|
|
def ROR8r1 : I<0xD0, MRM1r, (outs GR8 :$dst), (ins GR8 :$src1),
|
|
"ror{b}\t$dst",
|
|
[(set GR8:$dst, (rotr GR8:$src1, (i8 1)))]>;
|
|
def ROR16r1 : I<0xD1, MRM1r, (outs GR16:$dst), (ins GR16:$src1),
|
|
"ror{w}\t$dst",
|
|
[(set GR16:$dst, (rotr GR16:$src1, (i8 1)))]>, OpSize16;
|
|
def ROR32r1 : I<0xD1, MRM1r, (outs GR32:$dst), (ins GR32:$src1),
|
|
"ror{l}\t$dst",
|
|
[(set GR32:$dst, (rotr GR32:$src1, (i8 1)))]>, OpSize32;
|
|
def ROR64r1 : RI<0xD1, MRM1r, (outs GR64:$dst), (ins GR64:$src1),
|
|
"ror{q}\t$dst",
|
|
[(set GR64:$dst, (rotr GR64:$src1, (i8 1)))]>;
|
|
} // Constraints = "$src = $dst", SchedRW
|
|
|
|
let Uses = [CL], SchedRW = [WriteRotateCLLd, WriteRMW] in {
|
|
def ROR8mCL : I<0xD2, MRM1m, (outs), (ins i8mem :$dst),
|
|
"ror{b}\t{%cl, $dst|$dst, cl}",
|
|
[(store (rotr (loadi8 addr:$dst), CL), addr:$dst)]>;
|
|
def ROR16mCL : I<0xD3, MRM1m, (outs), (ins i16mem:$dst),
|
|
"ror{w}\t{%cl, $dst|$dst, cl}",
|
|
[(store (rotr (loadi16 addr:$dst), CL), addr:$dst)]>, 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)]>, 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)]>,
|
|
Requires<[In64BitMode]>;
|
|
}
|
|
|
|
let SchedRW = [WriteRotateLd, WriteRMW] in {
|
|
def ROR8mi : Ii8<0xC0, MRM1m, (outs), (ins i8mem :$dst, u8imm:$src),
|
|
"ror{b}\t{$src, $dst|$dst, $src}",
|
|
[(store (rotr (loadi8 addr:$dst), (i8 imm:$src)), addr:$dst)]>;
|
|
def ROR16mi : Ii8<0xC1, MRM1m, (outs), (ins i16mem:$dst, u8imm:$src),
|
|
"ror{w}\t{$src, $dst|$dst, $src}",
|
|
[(store (rotr (loadi16 addr:$dst), (i8 imm:$src)), addr:$dst)]>,
|
|
OpSize16;
|
|
def ROR32mi : Ii8<0xC1, MRM1m, (outs), (ins i32mem:$dst, u8imm:$src),
|
|
"ror{l}\t{$src, $dst|$dst, $src}",
|
|
[(store (rotr (loadi32 addr:$dst), (i8 imm:$src)), addr:$dst)]>,
|
|
OpSize32;
|
|
def ROR64mi : RIi8<0xC1, MRM1m, (outs), (ins i64mem:$dst, u8imm:$src),
|
|
"ror{q}\t{$src, $dst|$dst, $src}",
|
|
[(store (rotr (loadi64 addr:$dst), (i8 imm:$src)), addr:$dst)]>,
|
|
Requires<[In64BitMode]>;
|
|
|
|
// 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)]>;
|
|
def ROR16m1 : I<0xD1, MRM1m, (outs), (ins i16mem:$dst),
|
|
"ror{w}\t$dst",
|
|
[(store (rotr (loadi16 addr:$dst), (i8 1)), addr:$dst)]>,
|
|
OpSize16;
|
|
def ROR32m1 : I<0xD1, MRM1m, (outs), (ins i32mem:$dst),
|
|
"ror{l}\t$dst",
|
|
[(store (rotr (loadi32 addr:$dst), (i8 1)), addr:$dst)]>,
|
|
OpSize32;
|
|
def ROR64m1 : RI<0xD1, MRM1m, (outs), (ins i64mem:$dst),
|
|
"ror{q}\t$dst",
|
|
[(store (rotr (loadi64 addr:$dst), (i8 1)), addr:$dst)]>,
|
|
Requires<[In64BitMode]>;
|
|
} // SchedRW
|
|
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Double shift instructions (generalizations of rotate)
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
let Constraints = "$src1 = $dst" in {
|
|
|
|
let Uses = [CL], SchedRW = [WriteSHDrrcl] in {
|
|
def SHLD16rrCL : I<0xA5, MRMDestReg, (outs GR16:$dst),
|
|
(ins GR16:$src1, GR16:$src2),
|
|
"shld{w}\t{%cl, $src2, $dst|$dst, $src2, cl}",
|
|
[(set GR16:$dst, (X86shld GR16:$src1, GR16:$src2, CL))]>,
|
|
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))]>,
|
|
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))]>,
|
|
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))]>,
|
|
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))]>,
|
|
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))]>,
|
|
TB;
|
|
} // SchedRW
|
|
|
|
let isCommutable = 1, SchedRW = [WriteSHDrri] in { // These instructions commute to each other.
|
|
def SHLD16rri8 : Ii8<0xA4, MRMDestReg,
|
|
(outs GR16:$dst),
|
|
(ins GR16:$src1, GR16:$src2, u8imm:$src3),
|
|
"shld{w}\t{$src3, $src2, $dst|$dst, $src2, $src3}",
|
|
[(set GR16:$dst, (X86shld GR16:$src1, GR16:$src2,
|
|
(i8 imm:$src3)))]>,
|
|
TB, OpSize16;
|
|
def SHRD16rri8 : Ii8<0xAC, MRMDestReg,
|
|
(outs GR16:$dst),
|
|
(ins GR16:$src1, GR16:$src2, u8imm:$src3),
|
|
"shrd{w}\t{$src3, $src2, $dst|$dst, $src2, $src3}",
|
|
[(set GR16:$dst, (X86shrd GR16:$src1, GR16:$src2,
|
|
(i8 imm:$src3)))]>,
|
|
TB, OpSize16;
|
|
def SHLD32rri8 : Ii8<0xA4, MRMDestReg,
|
|
(outs GR32:$dst),
|
|
(ins GR32:$src1, GR32:$src2, u8imm:$src3),
|
|
"shld{l}\t{$src3, $src2, $dst|$dst, $src2, $src3}",
|
|
[(set GR32:$dst, (X86shld GR32:$src1, GR32:$src2,
|
|
(i8 imm:$src3)))]>,
|
|
TB, OpSize32;
|
|
def SHRD32rri8 : Ii8<0xAC, MRMDestReg,
|
|
(outs GR32:$dst),
|
|
(ins GR32:$src1, GR32:$src2, u8imm:$src3),
|
|
"shrd{l}\t{$src3, $src2, $dst|$dst, $src2, $src3}",
|
|
[(set GR32:$dst, (X86shrd GR32:$src1, GR32:$src2,
|
|
(i8 imm:$src3)))]>,
|
|
TB, OpSize32;
|
|
def SHLD64rri8 : RIi8<0xA4, MRMDestReg,
|
|
(outs GR64:$dst),
|
|
(ins GR64:$src1, GR64:$src2, u8imm:$src3),
|
|
"shld{q}\t{$src3, $src2, $dst|$dst, $src2, $src3}",
|
|
[(set GR64:$dst, (X86shld GR64:$src1, GR64:$src2,
|
|
(i8 imm:$src3)))]>,
|
|
TB;
|
|
def SHRD64rri8 : RIi8<0xAC, MRMDestReg,
|
|
(outs GR64:$dst),
|
|
(ins GR64:$src1, GR64:$src2, u8imm:$src3),
|
|
"shrd{q}\t{$src3, $src2, $dst|$dst, $src2, $src3}",
|
|
[(set GR64:$dst, (X86shrd GR64:$src1, GR64:$src2,
|
|
(i8 imm:$src3)))]>,
|
|
TB;
|
|
} // SchedRW
|
|
} // Constraints = "$src = $dst"
|
|
|
|
let Uses = [CL], SchedRW = [WriteSHDmrcl] in {
|
|
def SHLD16mrCL : I<0xA5, MRMDestMem, (outs), (ins i16mem:$dst, GR16:$src2),
|
|
"shld{w}\t{%cl, $src2, $dst|$dst, $src2, cl}",
|
|
[(store (X86shld (loadi16 addr:$dst), GR16:$src2, CL),
|
|
addr:$dst)]>, 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)]>, 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)]>, 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)]>, 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)]>, 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)]>, TB;
|
|
} // SchedRW
|
|
|
|
let SchedRW = [WriteSHDmri] in {
|
|
def SHLD16mri8 : Ii8<0xA4, MRMDestMem,
|
|
(outs), (ins i16mem:$dst, GR16:$src2, u8imm:$src3),
|
|
"shld{w}\t{$src3, $src2, $dst|$dst, $src2, $src3}",
|
|
[(store (X86shld (loadi16 addr:$dst), GR16:$src2,
|
|
(i8 imm:$src3)), addr:$dst)]>,
|
|
TB, OpSize16;
|
|
def SHRD16mri8 : Ii8<0xAC, MRMDestMem,
|
|
(outs), (ins i16mem:$dst, GR16:$src2, u8imm:$src3),
|
|
"shrd{w}\t{$src3, $src2, $dst|$dst, $src2, $src3}",
|
|
[(store (X86shrd (loadi16 addr:$dst), GR16:$src2,
|
|
(i8 imm:$src3)), addr:$dst)]>,
|
|
TB, OpSize16;
|
|
|
|
def SHLD32mri8 : Ii8<0xA4, MRMDestMem,
|
|
(outs), (ins i32mem:$dst, GR32:$src2, u8imm:$src3),
|
|
"shld{l}\t{$src3, $src2, $dst|$dst, $src2, $src3}",
|
|
[(store (X86shld (loadi32 addr:$dst), GR32:$src2,
|
|
(i8 imm:$src3)), addr:$dst)]>,
|
|
TB, OpSize32;
|
|
def SHRD32mri8 : Ii8<0xAC, MRMDestMem,
|
|
(outs), (ins i32mem:$dst, GR32:$src2, u8imm:$src3),
|
|
"shrd{l}\t{$src3, $src2, $dst|$dst, $src2, $src3}",
|
|
[(store (X86shrd (loadi32 addr:$dst), GR32:$src2,
|
|
(i8 imm:$src3)), addr:$dst)]>,
|
|
TB, OpSize32;
|
|
|
|
def SHLD64mri8 : RIi8<0xA4, MRMDestMem,
|
|
(outs), (ins i64mem:$dst, GR64:$src2, u8imm:$src3),
|
|
"shld{q}\t{$src3, $src2, $dst|$dst, $src2, $src3}",
|
|
[(store (X86shld (loadi64 addr:$dst), GR64:$src2,
|
|
(i8 imm:$src3)), addr:$dst)]>,
|
|
TB;
|
|
def SHRD64mri8 : RIi8<0xAC, MRMDestMem,
|
|
(outs), (ins i64mem:$dst, GR64:$src2, u8imm:$src3),
|
|
"shrd{q}\t{$src3, $src2, $dst|$dst, $src2, $src3}",
|
|
[(store (X86shrd (loadi64 addr:$dst), GR64:$src2,
|
|
(i8 imm:$src3)), addr:$dst)]>,
|
|
TB;
|
|
} // SchedRW
|
|
|
|
} // Defs = [EFLAGS]
|
|
|
|
// Use the opposite rotate if allows us to use the rotate by 1 instruction.
|
|
def : Pat<(rotl GR8:$src1, (i8 7)), (ROR8r1 GR8:$src1)>;
|
|
def : Pat<(rotl GR16:$src1, (i8 15)), (ROR16r1 GR16:$src1)>;
|
|
def : Pat<(rotl GR32:$src1, (i8 31)), (ROR32r1 GR32:$src1)>;
|
|
def : Pat<(rotl GR64:$src1, (i8 63)), (ROR64r1 GR64:$src1)>;
|
|
def : Pat<(rotr GR8:$src1, (i8 7)), (ROL8r1 GR8:$src1)>;
|
|
def : Pat<(rotr GR16:$src1, (i8 15)), (ROL16r1 GR16:$src1)>;
|
|
def : Pat<(rotr GR32:$src1, (i8 31)), (ROL32r1 GR32:$src1)>;
|
|
def : Pat<(rotr GR64:$src1, (i8 63)), (ROL64r1 GR64:$src1)>;
|
|
|
|
def : Pat<(store (rotl (loadi8 addr:$dst), (i8 7)), addr:$dst),
|
|
(ROR8m1 addr:$dst)>;
|
|
def : Pat<(store (rotl (loadi16 addr:$dst), (i8 15)), addr:$dst),
|
|
(ROR16m1 addr:$dst)>;
|
|
def : Pat<(store (rotl (loadi32 addr:$dst), (i8 31)), addr:$dst),
|
|
(ROR32m1 addr:$dst)>;
|
|
def : Pat<(store (rotl (loadi64 addr:$dst), (i8 63)), addr:$dst),
|
|
(ROR64m1 addr:$dst)>, Requires<[In64BitMode]>;
|
|
|
|
def : Pat<(store (rotr (loadi8 addr:$dst), (i8 7)), addr:$dst),
|
|
(ROL8m1 addr:$dst)>;
|
|
def : Pat<(store (rotr (loadi16 addr:$dst), (i8 15)), addr:$dst),
|
|
(ROL16m1 addr:$dst)>;
|
|
def : Pat<(store (rotr (loadi32 addr:$dst), (i8 31)), addr:$dst),
|
|
(ROL32m1 addr:$dst)>;
|
|
def : Pat<(store (rotr (loadi64 addr:$dst), (i8 63)), addr:$dst),
|
|
(ROL64m1 addr:$dst)>, Requires<[In64BitMode]>;
|
|
|
|
// Sandy Bridge and newer Intel processors support faster rotates using
|
|
// SHLD to avoid a partial flag update on the normal rotate instructions.
|
|
// Use a pseudo so that TwoInstructionPass and register allocation will see
|
|
// this as unary instruction.
|
|
let Predicates = [HasFastSHLDRotate], AddedComplexity = 5,
|
|
Defs = [EFLAGS], isPseudo = 1, SchedRW = [WriteSHDrri],
|
|
Constraints = "$src1 = $dst" in {
|
|
def SHLDROT32ri : I<0, Pseudo, (outs GR32:$dst),
|
|
(ins GR32:$src1, u8imm:$shamt), "",
|
|
[(set GR32:$dst, (rotl GR32:$src1, (i8 imm:$shamt)))]>;
|
|
def SHLDROT64ri : I<0, Pseudo, (outs GR64:$dst),
|
|
(ins GR64:$src1, u8imm:$shamt), "",
|
|
[(set GR64:$dst, (rotl GR64:$src1, (i8 imm:$shamt)))]>;
|
|
|
|
def SHRDROT32ri : I<0, Pseudo, (outs GR32:$dst),
|
|
(ins GR32:$src1, u8imm:$shamt), "",
|
|
[(set GR32:$dst, (rotr GR32:$src1, (i8 imm:$shamt)))]>;
|
|
def SHRDROT64ri : I<0, Pseudo, (outs GR64:$dst),
|
|
(ins GR64:$src1, u8imm:$shamt), "",
|
|
[(set GR64:$dst, (rotr GR64:$src1, (i8 imm:$shamt)))]>;
|
|
}
|
|
|
|
def ROT32L2R_imm8 : SDNodeXForm<imm, [{
|
|
// Convert a ROTL shamt to a ROTR shamt on 32-bit integer.
|
|
return getI8Imm(32 - N->getZExtValue(), SDLoc(N));
|
|
}]>;
|
|
|
|
def ROT64L2R_imm8 : SDNodeXForm<imm, [{
|
|
// Convert a ROTL shamt to a ROTR shamt on 64-bit integer.
|
|
return getI8Imm(64 - N->getZExtValue(), SDLoc(N));
|
|
}]>;
|
|
|
|
// NOTE: We use WriteShift for these rotates as they avoid the stalls
|
|
// of many of the older x86 rotate instructions.
|
|
multiclass bmi_rotate<string asm, RegisterClass RC, X86MemOperand x86memop> {
|
|
let hasSideEffects = 0 in {
|
|
def ri : Ii8<0xF0, MRMSrcReg, (outs RC:$dst), (ins RC:$src1, u8imm:$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:$src1, u8imm:$src2),
|
|
!strconcat(asm, "\t{$src2, $src1, $dst|$dst, $src1, $src2}"),
|
|
[]>, TAXD, VEX, Sched<[WriteShiftLd]>;
|
|
}
|
|
}
|
|
|
|
multiclass bmi_shift<string asm, RegisterClass RC, X86MemOperand x86memop> {
|
|
let hasSideEffects = 0 in {
|
|
def rr : I<0xF7, MRMSrcReg4VOp3, (outs RC:$dst), (ins RC:$src1, RC:$src2),
|
|
!strconcat(asm, "\t{$src2, $src1, $dst|$dst, $src1, $src2}"), []>,
|
|
VEX, Sched<[WriteShift]>;
|
|
let mayLoad = 1 in
|
|
def rm : I<0xF7, MRMSrcMem4VOp3,
|
|
(outs RC:$dst), (ins x86memop:$src1, RC:$src2),
|
|
!strconcat(asm, "\t{$src2, $src1, $dst|$dst, $src1, $src2}"), []>,
|
|
VEX, Sched<[WriteShift.Folded,
|
|
// x86memop:$src1
|
|
ReadDefault, ReadDefault, ReadDefault, ReadDefault,
|
|
ReadDefault,
|
|
// RC:$src2
|
|
WriteShift.ReadAfterFold]>;
|
|
}
|
|
}
|
|
|
|
let Predicates = [HasBMI2] in {
|
|
defm RORX32 : bmi_rotate<"rorx{l}", GR32, i32mem>;
|
|
defm RORX64 : bmi_rotate<"rorx{q}", GR64, i64mem>, VEX_W;
|
|
defm SARX32 : bmi_shift<"sarx{l}", GR32, i32mem>, T8XS;
|
|
defm SARX64 : bmi_shift<"sarx{q}", GR64, i64mem>, T8XS, VEX_W;
|
|
defm SHRX32 : bmi_shift<"shrx{l}", GR32, i32mem>, T8XD;
|
|
defm SHRX64 : bmi_shift<"shrx{q}", GR64, i64mem>, T8XD, VEX_W;
|
|
defm SHLX32 : bmi_shift<"shlx{l}", GR32, i32mem>, T8PD;
|
|
defm SHLX64 : bmi_shift<"shlx{q}", GR64, i64mem>, T8PD, VEX_W;
|
|
|
|
// Prefer RORX which is non-destructive and doesn't update EFLAGS.
|
|
let AddedComplexity = 10 in {
|
|
def : Pat<(rotr GR32:$src, (i8 imm:$shamt)),
|
|
(RORX32ri GR32:$src, imm:$shamt)>;
|
|
def : Pat<(rotr GR64:$src, (i8 imm:$shamt)),
|
|
(RORX64ri GR64:$src, imm:$shamt)>;
|
|
|
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def : Pat<(rotl GR32:$src, (i8 imm:$shamt)),
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(RORX32ri GR32:$src, (ROT32L2R_imm8 imm:$shamt))>;
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def : Pat<(rotl GR64:$src, (i8 imm:$shamt)),
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(RORX64ri GR64:$src, (ROT64L2R_imm8 imm:$shamt))>;
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}
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def : Pat<(rotr (loadi32 addr:$src), (i8 imm:$shamt)),
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(RORX32mi addr:$src, imm:$shamt)>;
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def : Pat<(rotr (loadi64 addr:$src), (i8 imm:$shamt)),
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(RORX64mi addr:$src, imm:$shamt)>;
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def : Pat<(rotl (loadi32 addr:$src), (i8 imm:$shamt)),
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(RORX32mi addr:$src, (ROT32L2R_imm8 imm:$shamt))>;
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def : Pat<(rotl (loadi64 addr:$src), (i8 imm:$shamt)),
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(RORX64mi addr:$src, (ROT64L2R_imm8 imm:$shamt))>;
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// Prefer SARX/SHRX/SHLX over SAR/SHR/SHL with variable shift BUT not
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// immediate shift, i.e. the following code is considered better
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//
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// mov %edi, %esi
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// shl $imm, %esi
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// ... %edi, ...
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//
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// than
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//
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// movb $imm, %sil
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// shlx %sil, %edi, %esi
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// ... %edi, ...
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//
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let AddedComplexity = 1 in {
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def : Pat<(sra GR32:$src1, GR8:$src2),
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(SARX32rr GR32:$src1,
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(INSERT_SUBREG
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(i32 (IMPLICIT_DEF)), GR8:$src2, sub_8bit))>;
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def : Pat<(sra GR64:$src1, GR8:$src2),
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(SARX64rr GR64:$src1,
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(INSERT_SUBREG
|
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(i64 (IMPLICIT_DEF)), GR8:$src2, sub_8bit))>;
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|
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def : Pat<(srl GR32:$src1, GR8:$src2),
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|
(SHRX32rr GR32:$src1,
|
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(INSERT_SUBREG
|
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(i32 (IMPLICIT_DEF)), GR8:$src2, sub_8bit))>;
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def : Pat<(srl GR64:$src1, GR8:$src2),
|
|
(SHRX64rr GR64:$src1,
|
|
(INSERT_SUBREG
|
|
(i64 (IMPLICIT_DEF)), GR8:$src2, sub_8bit))>;
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|
|
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def : Pat<(shl GR32:$src1, GR8:$src2),
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|
(SHLX32rr GR32:$src1,
|
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(INSERT_SUBREG
|
|
(i32 (IMPLICIT_DEF)), GR8:$src2, sub_8bit))>;
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def : Pat<(shl GR64:$src1, GR8:$src2),
|
|
(SHLX64rr GR64:$src1,
|
|
(INSERT_SUBREG
|
|
(i64 (IMPLICIT_DEF)), GR8:$src2, sub_8bit))>;
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}
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|
|
|
// We prefer to use
|
|
// mov (%ecx), %esi
|
|
// shl $imm, $esi
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|
//
|
|
// over
|
|
//
|
|
// movb $imm, %al
|
|
// shlx %al, (%ecx), %esi
|
|
//
|
|
// This priority is enforced by IsProfitableToFoldLoad.
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def : Pat<(sra (loadi32 addr:$src1), GR8:$src2),
|
|
(SARX32rm addr:$src1,
|
|
(INSERT_SUBREG
|
|
(i32 (IMPLICIT_DEF)), GR8:$src2, sub_8bit))>;
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def : Pat<(sra (loadi64 addr:$src1), GR8:$src2),
|
|
(SARX64rm addr:$src1,
|
|
(INSERT_SUBREG
|
|
(i64 (IMPLICIT_DEF)), GR8:$src2, sub_8bit))>;
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|
|
|
def : Pat<(srl (loadi32 addr:$src1), GR8:$src2),
|
|
(SHRX32rm addr:$src1,
|
|
(INSERT_SUBREG
|
|
(i32 (IMPLICIT_DEF)), GR8:$src2, sub_8bit))>;
|
|
def : Pat<(srl (loadi64 addr:$src1), GR8:$src2),
|
|
(SHRX64rm addr:$src1,
|
|
(INSERT_SUBREG
|
|
(i64 (IMPLICIT_DEF)), GR8:$src2, sub_8bit))>;
|
|
|
|
def : Pat<(shl (loadi32 addr:$src1), GR8:$src2),
|
|
(SHLX32rm addr:$src1,
|
|
(INSERT_SUBREG
|
|
(i32 (IMPLICIT_DEF)), GR8:$src2, sub_8bit))>;
|
|
def : Pat<(shl (loadi64 addr:$src1), GR8:$src2),
|
|
(SHLX64rm addr:$src1,
|
|
(INSERT_SUBREG
|
|
(i64 (IMPLICIT_DEF)), GR8:$src2, sub_8bit))>;
|
|
}
|