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add a multiclass for cmov's, but don't start using it yet.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115692 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2010-10-05 22:01:02 +00:00
parent 0659b045cf
commit b484213d1b
1 changed files with 40 additions and 1 deletions
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41
lib/Target/X86/X86InstrCMovSetCC.td
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@ -12,7 +12,46 @@
//
//===----------------------------------------------------------------------===//
// FIXME: Someone please sprinkle some defm's in here!
// SetCC instructions.
multiclass CMOV<bits<8> opc, string Mnemonic, PatLeaf CondNode> {
let Uses = [EFLAGS], Predicates = [HasCMov], Constraints = "$src1 = $dst",
isCommutable = 1 in {
def rr16 : I<opc, MRMSrcReg, (outs GR16:$dst), (ins GR16:$src1, GR16:$src2),
!strconcat(Mnemonic, "{w}\t{$src2, $dst|$dst, $src2}"),
[(set GR16:$dst,
(X86cmov GR16:$src1, GR16:$src2, CondNode, EFLAGS))]>,
TB, OpSize;
def rr32 : I<opc, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src1, GR32:$src2),
!strconcat(Mnemonic, "{l}\t{$src2, $dst|$dst, $src2}"),
[(set GR32:$dst,
(X86cmov GR32:$src1, GR32:$src2, CondNode, EFLAGS))]>,
TB;
def rr64 :RI<opc, MRMSrcReg, (outs GR64:$dst), (ins GR64:$src1, GR64:$src2),
!strconcat(Mnemonic, "{q}\t{$src2, $dst|$dst, $src2}"),
[(set GR64:$dst,
(X86cmov GR64:$src1, GR64:$src2, CondNode, EFLAGS))]>,
TB;
}
let Uses = [EFLAGS], Predicates = [HasCMov], Constraints = "$src1 = $dst"in {
def rm16 : I<opc, MRMSrcMem, (outs GR16:$dst), (ins GR16:$src1, i16mem:$src2),
!strconcat(Mnemonic, "{w}\t{$src2, $dst|$dst, $src2}"),
[(set GR16:$dst, (X86cmov GR16:$src1, (loadi16 addr:$src2),
CondNode, EFLAGS))]>, TB, OpSize;
def rm32 : I<opc, MRMSrcMem, (outs GR32:$dst), (ins GR32:$src1, i32mem:$src2),
!strconcat(Mnemonic, "{l}\t{$src2, $dst|$dst, $src2}"),
[(set GR32:$dst, (X86cmov GR32:$src1, (loadi32 addr:$src2),
CondNode, EFLAGS))]>, TB;
def rm64 :RI<opc, MRMSrcMem, (outs GR64:$dst), (ins GR64:$src1, i64mem:$src2),
!strconcat(Mnemonic, "{q}\t{$src2, $dst|$dst, $src2}"),
[(set GR64:$dst, (X86cmov GR64:$src1, (loadi64 addr:$src2),
CondNode, EFLAGS))]>, TB;
} // Uses = [EFLAGS], Predicates = [HasCMov], Constraints = "$src1 = $dst"
} // end multiclass
//defm CMOVBE : CMOV<0x46, "cmovbe", X86_COND_BE>;
let Constraints = "$src1 = $dst" in {