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[X86][APX] Do not emit {evex} prefix for memory variant #109759

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Merged
merged 1 commit into from
Sep 24, 2024
Merged

[X86][APX] Do not emit {evex} prefix for memory variant #109759

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27 changes: 13 additions & 14 deletions llvm/lib/Target/X86/X86InstrAVX512.td
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Original file line number Diff line number Diff line change
Expand Up @@ -2617,20 +2617,19 @@ defm VFPCLASS : avx512_fp_fpclass_all<"vfpclass", 0x66, 0x67, SchedWriteFCmp>, E
multiclass avx512_mask_mov<bits<8> opc_kk, bits<8> opc_km, bits<8> opc_mk,
string OpcodeStr, RegisterClass KRC, ValueType vvt,
X86MemOperand x86memop, string Suffix = ""> {
let explicitOpPrefix = !if(!eq(Suffix, ""), NoExplicitOpPrefix, ExplicitEVEX) in {
let isMoveReg = 1, hasSideEffects = 0, SchedRW = [WriteMove] in
def kk#Suffix : I<opc_kk, MRMSrcReg, (outs KRC:$dst), (ins KRC:$src),
!strconcat(OpcodeStr, "\t{$src, $dst|$dst, $src}"), []>,
Sched<[WriteMove]>;
def km#Suffix : I<opc_km, MRMSrcMem, (outs KRC:$dst), (ins x86memop:$src),
!strconcat(OpcodeStr, "\t{$src, $dst|$dst, $src}"),
[(set KRC:$dst, (vvt (load addr:$src)))]>,
Sched<[WriteLoad]>, NoCD8;
def mk#Suffix : I<opc_mk, MRMDestMem, (outs), (ins x86memop:$dst, KRC:$src),
!strconcat(OpcodeStr, "\t{$src, $dst|$dst, $src}"),
[(store KRC:$src, addr:$dst)]>,
Sched<[WriteStore]>, NoCD8;
}
let isMoveReg = 1, hasSideEffects = 0, SchedRW = [WriteMove],
explicitOpPrefix = !if(!eq(Suffix, ""), NoExplicitOpPrefix, ExplicitEVEX) in
def kk#Suffix : I<opc_kk, MRMSrcReg, (outs KRC:$dst), (ins KRC:$src),
!strconcat(OpcodeStr, "\t{$src, $dst|$dst, $src}"), []>,
Sched<[WriteMove]>;
def km#Suffix : I<opc_km, MRMSrcMem, (outs KRC:$dst), (ins x86memop:$src),
!strconcat(OpcodeStr, "\t{$src, $dst|$dst, $src}"),
[(set KRC:$dst, (vvt (load addr:$src)))]>,
Sched<[WriteLoad]>, NoCD8;
def mk#Suffix : I<opc_mk, MRMDestMem, (outs), (ins x86memop:$dst, KRC:$src),
!strconcat(OpcodeStr, "\t{$src, $dst|$dst, $src}"),
[(store KRC:$src, addr:$dst)]>,
Sched<[WriteStore]>, NoCD8;
}

multiclass avx512_mask_mov_gpr<bits<8> opc_kr, bits<8> opc_rk,
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16 changes: 8 additions & 8 deletions llvm/test/MC/Disassembler/X86/apx/kmov.txt
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Expand Up @@ -17,20 +17,20 @@
# INTEL: {evex} kmovq k2, k1
0x62,0xf1,0xfc,0x08,0x90,0xd1

# ATT: {evex} kmovb -16(%rax), %k0
# INTEL: {evex} kmovb k0, byte ptr [rax - 16]
# ATT: kmovb -16(%rax), %k0
# INTEL: kmovb k0, byte ptr [rax - 16]
0x62,0xf1,0x7d,0x08,0x90,0x40,0xf0

# ATT: {evex} kmovw -16(%rax), %k0
# INTEL: {evex} kmovw k0, word ptr [rax - 16]
# ATT: kmovw -16(%rax), %k0
# INTEL: kmovw k0, word ptr [rax - 16]
0x62,0xf1,0x7c,0x08,0x90,0x40,0xf0

# ATT: {evex} kmovd -16(%rax), %k0
# INTEL: {evex} kmovd k0, dword ptr [rax - 16]
# ATT: kmovd -16(%rax), %k0
# INTEL: kmovd k0, dword ptr [rax - 16]
0x62,0xf1,0xfd,0x08,0x90,0x40,0xf0

# ATT: {evex} kmovq -16(%rax), %k0
# INTEL: {evex} kmovq k0, qword ptr [rax - 16]
# ATT: kmovq -16(%rax), %k0
# INTEL: kmovq k0, qword ptr [rax - 16]
0x62,0xf1,0xfc,0x08,0x90,0x40,0xf0

# ATT-NOT: {evex}
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