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Add rotate instructions.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19690 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2005-01-19 07:50:03 +00:00
parent 30ea1e9411
commit 40ff633b05
2 changed files with 75 additions and 0 deletions
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63
lib/Target/X86/X86InstrInfo.td
View File

@ -875,6 +875,69 @@ let isTwoAddress = 0 in {
"sar{l} {$src, $dst|$dst, $src}">;
}
// Rotate instructions
// FIXME: provide shorter instructions when imm8 == 1
def ROL8rCL : I<0xD2, MRM0r, (ops R8 :$dst, R8 :$src),
"rol{b} {%cl, $dst|$dst, %CL}">, Imp<[CL],[]>;
def ROL16rCL : I<0xD3, MRM0r, (ops R16:$dst, R16:$src),
"rol{w} {%cl, $dst|$dst, %CL}">, Imp<[CL],[]>, OpSize;
def ROL32rCL : I<0xD3, MRM0r, (ops R32:$dst, R32:$src),
"rol{l} {%cl, $dst|$dst, %CL}">, Imp<[CL],[]>;
def ROL8ri : Ii8<0xC0, MRM0r, (ops R8 :$dst, R8 :$src1, i8imm:$src2),
"rol{b} {$src2, $dst|$dst, $src2}">;
def ROL16ri : Ii8<0xC1, MRM0r, (ops R16:$dst, R16:$src1, i8imm:$src2),
"rol{w} {$src2, $dst|$dst, $src2}">, OpSize;
def ROL32ri : Ii8<0xC1, MRM0r, (ops R32:$dst, R32:$src1, i8imm:$src2),
"rol{l} {$src2, $dst|$dst, $src2}">;
let isTwoAddress = 0 in {
def ROL8mCL : I<0xD2, MRM0m, (ops i8mem :$dst),
"rol{b} {%cl, $dst|$dst, %CL}">, Imp<[CL],[]>;
def ROL16mCL : I<0xD3, MRM0m, (ops i16mem:$dst),
"rol{w} {%cl, $dst|$dst, %CL}">, Imp<[CL],[]>, OpSize;
def ROL32mCL : I<0xD3, MRM0m, (ops i32mem:$dst),
"rol{l} {%cl, $dst|$dst, %CL}">, Imp<[CL],[]>;
def ROL8mi : Ii8<0xC0, MRM0m, (ops i8mem :$dst, i8imm:$src),
"rol{b} {$src, $dst|$dst, $src}">;
def ROL16mi : Ii8<0xC1, MRM0m, (ops i16mem:$dst, i8imm:$src),
"rol{w} {$src, $dst|$dst, $src}">, OpSize;
def ROL32mi : Ii8<0xC1, MRM0m, (ops i32mem:$dst, i8imm:$src),
"rol{l} {$src, $dst|$dst, $src}">;
}
def ROR8rCL : I<0xD2, MRM1r, (ops R8 :$dst, R8 :$src),
"ror{b} {%cl, $dst|$dst, %CL}">, Imp<[CL],[]>;
def ROR16rCL : I<0xD3, MRM1r, (ops R16:$dst, R16:$src),
"ror{w} {%cl, $dst|$dst, %CL}">, Imp<[CL],[]>, OpSize;
def ROR32rCL : I<0xD3, MRM1r, (ops R32:$dst, R32:$src),
"ror{l} {%cl, $dst|$dst, %CL}">, Imp<[CL],[]>;
def ROR8ri : Ii8<0xC0, MRM1r, (ops R8 :$dst, R8 :$src1, i8imm:$src2),
"ror{b} {$src2, $dst|$dst, $src2}">;
def ROR16ri : Ii8<0xC1, MRM1r, (ops R16:$dst, R16:$src1, i8imm:$src2),
"ror{w} {$src2, $dst|$dst, $src2}">, OpSize;
def ROR32ri : Ii8<0xC1, MRM1r, (ops R32:$dst, R32:$src1, i8imm:$src2),
"ror{l} {$src2, $dst|$dst, $src2}">;
let isTwoAddress = 0 in {
def ROR8mCL : I<0xD2, MRM1m, (ops i8mem :$dst),
"ror{b} {%cl, $dst|$dst, %CL}">, Imp<[CL],[]>;
def ROR16mCL : I<0xD3, MRM1m, (ops i16mem:$dst),
"ror{w} {%cl, $dst|$dst, %CL}">, Imp<[CL],[]>, OpSize;
def ROR32mCL : I<0xD3, MRM1m, (ops i32mem:$dst),
"ror{l} {%cl, $dst|$dst, %CL}">, Imp<[CL],[]>;
def ROR8mi : Ii8<0xC0, MRM1m, (ops i8mem :$dst, i8imm:$src),
"ror{b} {$src, $dst|$dst, $src}">;
def ROR16mi : Ii8<0xC1, MRM1m, (ops i16mem:$dst, i8imm:$src),
"ror{w} {$src, $dst|$dst, $src}">, OpSize;
def ROR32mi : Ii8<0xC1, MRM1m, (ops i32mem:$dst, i8imm:$src),
"ror{l} {$src, $dst|$dst, $src}">;
}
// Double shift instructions (generalizations of rotate)
def SHLD32rrCL : I<0xA5, MRMDestReg, (ops R32:$dst, R32:$src1, R32:$src2),
"shld{l} {%cl, $src2, $dst|$dst, $src2, %CL}">,
Imp<[CL],[]>, TB;

12
lib/Target/X86/X86RegisterInfo.cpp
View File

@ -221,6 +221,18 @@ MachineInstr* X86RegisterInfo::foldMemoryOperand(MachineInstr* MI,
case X86::SAR8ri: return MakeMIInst(X86::SAR8mi , FrameIndex, MI);
case X86::SAR16ri: return MakeMIInst(X86::SAR16mi, FrameIndex, MI);
case X86::SAR32ri: return MakeMIInst(X86::SAR32mi, FrameIndex, MI);
case X86::ROL8rCL: return MakeMInst( X86::ROL8mCL ,FrameIndex, MI);
case X86::ROL16rCL: return MakeMInst( X86::ROL16mCL,FrameIndex, MI);
case X86::ROL32rCL: return MakeMInst( X86::ROL32mCL,FrameIndex, MI);
case X86::ROL8ri: return MakeMIInst(X86::ROL8mi , FrameIndex, MI);
case X86::ROL16ri: return MakeMIInst(X86::ROL16mi, FrameIndex, MI);
case X86::ROL32ri: return MakeMIInst(X86::ROL32mi, FrameIndex, MI);
case X86::ROR8rCL: return MakeMInst( X86::ROR8mCL ,FrameIndex, MI);
case X86::ROR16rCL: return MakeMInst( X86::ROR16mCL,FrameIndex, MI);
case X86::ROR32rCL: return MakeMInst( X86::ROR32mCL,FrameIndex, MI);
case X86::ROR8ri: return MakeMIInst(X86::ROR8mi , FrameIndex, MI);
case X86::ROR16ri: return MakeMIInst(X86::ROR16mi, FrameIndex, MI);
case X86::ROR32ri: return MakeMIInst(X86::ROR32mi, FrameIndex, MI);
case X86::SHLD32rrCL:return MakeMRInst( X86::SHLD32mrCL,FrameIndex, MI);
case X86::SHLD32rri8:return MakeMRIInst(X86::SHLD32mri8,FrameIndex, MI);
case X86::SHRD32rrCL:return MakeMRInst( X86::SHRD32mrCL,FrameIndex, MI);