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Add patterns for SHLD64* and SHRD64*.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41975 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman 2007-09-14 23:17:45 +00:00
parent 2204906892
commit e47f1f9633
2 changed files with 28 additions and 12 deletions
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6
lib/Target/X86/X86InstrInfo.cpp
View File

@ -338,7 +338,9 @@ MachineInstr *X86InstrInfo::commuteInstruction(MachineInstr *MI) const {
case X86::SHRD16rri8: // A = SHRD16rri8 B, C, I -> A = SHLD16rri8 C, B, (16-I)
case X86::SHLD16rri8: // A = SHLD16rri8 B, C, I -> A = SHRD16rri8 C, B, (16-I)
case X86::SHRD32rri8: // A = SHRD32rri8 B, C, I -> A = SHLD32rri8 C, B, (32-I)
case X86::SHLD32rri8:{// A = SHLD32rri8 B, C, I -> A = SHRD32rri8 C, B, (32-I)
case X86::SHLD32rri8: // A = SHLD32rri8 B, C, I -> A = SHRD32rri8 C, B, (32-I)
case X86::SHRD64rri8: // A = SHRD64rri8 B, C, I -> A = SHLD64rri8 C, B, (64-I)
case X86::SHLD64rri8:{// A = SHLD64rri8 B, C, I -> A = SHRD64rri8 C, B, (64-I)
unsigned Opc;
unsigned Size;
switch (MI->getOpcode()) {
@ -347,6 +349,8 @@ MachineInstr *X86InstrInfo::commuteInstruction(MachineInstr *MI) const {
case X86::SHLD16rri8: Size = 16; Opc = X86::SHRD16rri8; break;
case X86::SHRD32rri8: Size = 32; Opc = X86::SHLD32rri8; break;
case X86::SHLD32rri8: Size = 32; Opc = X86::SHRD32rri8; break;
case X86::SHRD64rri8: Size = 64; Opc = X86::SHLD64rri8; break;
case X86::SHLD64rri8: Size = 64; Opc = X86::SHRD64rri8; break;
}
unsigned Amt = MI->getOperand(3).getImmedValue();
unsigned A = MI->getOperand(0).getReg();

34
lib/Target/X86/X86InstrX86-64.td
View File

@ -564,38 +564,50 @@ def ROR64m1 : RI<0xD1, MRM1m, (outs), (ins i64mem:$dst),
let isTwoAddress = 1 in {
let Uses = [CL] in {
def SHLD64rrCL : RI<0xA5, MRMDestReg, (outs GR64:$dst), (ins GR64:$src1, GR64:$src2),
"shld{q}\t{%cl, $src2, $dst|$dst, $src2, %CL}", []>, TB;
"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}", []>, TB;
"shrd{q}\t{%cl, $src2, $dst|$dst, $src2, %CL}",
[(set GR64:$dst, (X86shrd GR64:$src1, GR64:$src2, CL))]>, TB;
}
let isCommutable = 1 in { // FIXME: Update X86InstrInfo::commuteInstruction
def SHLD64rri8 : RIi8<0xA4, MRMDestReg,
(outs GR64:$dst), (ins GR64:$src1, GR64:$src2, i8imm:$src3),
"shld{q}\t{$src3, $src2, $dst|$dst, $src2, $src3}", []>,
TB;
"shld{q}\t{$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, i8imm:$src3),
"shrd{q}\t{$src3, $src2, $dst|$dst, $src2, $src3}", []>,
"shrd{q}\t{$src3, $src2, $dst|$dst, $src2, $src3}",
[(set GR64:$dst, (X86shrd GR64:$src1, GR64:$src2,
(i8 imm:$src3)))]>,
TB;
} // isCommutable
} // isTwoAddress
// Temporary hack: there is no patterns associated with these instructions
// so we have to tell tblgen that these do not produce results.
let Uses = [CL] in {
def SHLD64mrCL : RI<0xA5, MRMDestMem, (outs), (ins i64mem:$dst, GR64:$src2),
"shld{q}\t{%cl, $src2, $dst|$dst, $src2, %CL}", []>, TB;
"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}", []>, TB;
"shrd{q}\t{%cl, $src2, $dst|$dst, $src2, %CL}",
[(store (X86shrd (loadi64 addr:$dst), GR64:$src2, CL),
addr:$dst)]>, TB;
}
def SHLD64mri8 : RIi8<0xA4, MRMDestMem,
(outs), (ins i64mem:$dst, GR64:$src2, i8imm:$src3),
"shld{q}\t{$src3, $src2, $dst|$dst, $src2, $src3}", []>,
"shld{q}\t{$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:$src2, i8imm:$src3),
"shrd{q}\t{$src3, $src2, $dst|$dst, $src2, $src3}", []>,
"shrd{q}\t{$src3, $src2, $dst|$dst, $src2, $src3}",
[(store (X86shrd (loadi64 addr:$dst), GR64:$src2,
(i8 imm:$src3)), addr:$dst)]>,
TB;
} // Defs = [EFLAGS]