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[X86] Move Atomic CMPXCHG to WriteCMPXCHGRMW schedule class 

llvm-svn: 343700
This commit is contained in:
Simon Pilgrim 2018-10-03 18:05:01 +00:00
parent aef87980a9
commit a400612aed
1 changed files with 5 additions and 5 deletions
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10
llvm/lib/Target/X86/X86InstrCompiler.td
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@ -789,7 +789,7 @@ let isCodeGenOnly = 1, usesCustomInserter = 1 in {
multiclass LCMPXCHG_BinOp<bits<8> Opc8, bits<8> Opc, Format Form,
string mnemonic, SDPatternOperator frag> {
let isCodeGenOnly = 1, SchedRW = [WriteALULd, WriteRMW] in {
let isCodeGenOnly = 1, SchedRW = [WriteCMPXCHGRMW] in {
let Defs = [AL, EFLAGS], Uses = [AL] in
def NAME#8 : I<Opc8, Form, (outs), (ins i8mem:$ptr, GR8:$swap),
!strconcat(mnemonic, "{b}\t{$swap, $ptr|$ptr, $swap}"),
@ -810,7 +810,7 @@ let isCodeGenOnly = 1, SchedRW = [WriteALULd, WriteRMW] in {
}
let Defs = [EAX, EDX, EFLAGS], Uses = [EAX, EBX, ECX, EDX],
SchedRW = [WriteALULd, WriteRMW] in {
SchedRW = [WriteCMPXCHGRMW] in {
defm LCMPXCHG8B : LCMPXCHG_UnOp<0xC7, MRM1m, "cmpxchg8b", X86cas8, i64mem>;
}
@ -834,7 +834,7 @@ defm LCMPXCHG8B : LCMPXCHG_UnOp<0xC7, MRM1m, "cmpxchg8b", X86cas8, i64mem>;
// the instruction and we are sure we will have a valid register to restore
// the value of RBX.
let Defs = [EAX, EDX, EBX, EFLAGS], Uses = [EAX, ECX, EDX],
SchedRW = [WriteALULd, WriteRMW], isCodeGenOnly = 1, isPseudo = 1,
SchedRW = [WriteCMPXCHGRMW], isCodeGenOnly = 1, isPseudo = 1,
Constraints = "$ebx_save = $dst", usesCustomInserter = 1 in {
def LCMPXCHG8B_SAVE_EBX :
I<0, Pseudo, (outs GR32:$dst),
@ -846,14 +846,14 @@ def LCMPXCHG8B_SAVE_EBX :
let Defs = [RAX, RDX, EFLAGS], Uses = [RAX, RBX, RCX, RDX],
Predicates = [HasCmpxchg16b], SchedRW = [WriteALULd, WriteRMW] in {
Predicates = [HasCmpxchg16b], SchedRW = [WriteCMPXCHGRMW] in {
defm LCMPXCHG16B : LCMPXCHG_UnOp<0xC7, MRM1m, "cmpxchg16b",
X86cas16, i128mem>, REX_W;
}
// Same as LCMPXCHG8B_SAVE_RBX but for the 16 Bytes variant.
let Defs = [RAX, RDX, RBX, EFLAGS], Uses = [RAX, RCX, RDX],
Predicates = [HasCmpxchg16b], SchedRW = [WriteALULd, WriteRMW],
Predicates = [HasCmpxchg16b], SchedRW = [WriteCMPXCHGRMW],
isCodeGenOnly = 1, isPseudo = 1, Constraints = "$rbx_save = $dst",
usesCustomInserter = 1 in {
def LCMPXCHG16B_SAVE_RBX :