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Replace patterns 0, 4, and 5 with simpler heirarchical definitions that use the

Browse Source 
official PowerPC instruction format lingo: X- and D-form.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15422 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Misha Brukman 2004-08-02 21:56:35 +00:00
parent 17d3efcd72
commit c681a4e476
1 changed files with 98 additions and 68 deletions
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166
lib/Target/PowerPC/PPCInstrFormats.td
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@ -52,30 +52,109 @@ class PPC32Inst : Instruction {
let Namespace = "PPC32";
}
class PPC32InstPattern0 <string name, Format OperandType0, Format OperandType1, Format OperandType2, bits<6> opconstant0, bit ppc64, bit vmx> : PPC32Inst {
let Name = name;
let ArgCount = 3;
let PPC64 = ppc64;
let VMX =vmx;
//===----------------------------------------------------------------------===//
//
// PowerPC instruction formats
let Arg0Type = OperandType0.Value;
let Arg1Type = OperandType1.Value;
let Arg2Type = OperandType2.Value;
let Arg3Type = 0;
let Arg4Type = 0;
let PPC64 = 0;
let VMX = 0;
bits<5> operand0;
bits<5> operand1;
bits<16> operand2;
class PPC32I<string name, bits<6> opcode, bit ppc64, bit vmx> : Instruction {
field bits<32> Inst;
field bits<6> Opcode = opcode;
bits<3> ArgCount;
bits<5> Arg0Type;
bits<5> Arg1Type;
bits<5> Arg2Type;
bits<5> Arg3Type;
bits<5> Arg4Type;
bit PPC64 = ppc64;
bit VMX = vmx;
let Inst {31-26} = opconstant0;
let Inst {25-21} = operand0;
let Inst {20-16} = operand1;
let Inst {15-0} = operand2;
let Name = name;
let Inst{0-5} = Opcode;
}
class XForm_base_r3xo<string name, bits<6> opcode, bits<10> xo, bit ppc64,
bit vmx> : PPC32I<name, opcode, ppc64, vmx> {
let ArgCount = 3;
field bits<5> A;
field bits<5> B;
field bits<5> C;
field bits<10> D = xo;
field bit Rc = 0;
let ArgCount = 3;
let Arg0Type = Gpr.Value;
let Arg1Type = Gpr.Value;
let Arg2Type = Gpr.Value;
let Arg3Type = 0;
let Arg4Type = 0;
let Inst{6-10} = A;
let Inst{11-15} = B;
let Inst{16-20} = C;
let Inst{21-30} = D;
let Inst{31} = Rc;
}
class XForm_6<string name, bits<6> opcode, bits<10> xo, bit rc, bit ppc64,
bit vmx> : XForm_base_r3xo<name, opcode, xo, ppc64, vmx> {
let Rc = rc;
}
class XForm_7<string name, bits<6> opcode, bits<10> xo, bit ppc64, bit vmx>
: XForm_6<name, opcode, xo, 1, ppc64, vmx>;
class XForm_10<string name, bits<6> opcode, bits<10> xo, bit rc, bit ppc64,
bit vmx> : XForm_base_r3xo<name, opcode, xo, ppc64, vmx> {
let Rc = rc;
let Arg2Type = Imm5.Value;
}
class DForm_base<string name, bits<6> opcode, bit ppc64, bit vmx>
: PPC32I<name, opcode, ppc64, vmx> {
field bits<5> A;
field bits<5> B;
field bits<16> C;
let ArgCount = 3;
let Arg0Type = Gpr.Value;
let Arg1Type = Gpr.Value;
let Arg2Type = Simm16.Value;
let Arg3Type = 0;
let Arg4Type = 0;
let Inst{6-10} = A;
let Inst{11-15} = B;
let Inst{16-31} = C;
}
class DForm_1<string name, bits<6> opcode, bit ppc64, bit vmx>
: DForm_base<name, opcode, ppc64, vmx> {
let Arg2Type = Zimm16.Value;
}
class DForm_2<string name, bits<6> opcode, bit ppc64, bit vmx>
: DForm_base<name, opcode, ppc64, vmx>;
class DForm_2_r0<string name, bits<6> opcode, bit ppc64, bit vmx>
: DForm_base<name, opcode, ppc64, vmx> {
let Arg1Type = Gpr0.Value;
}
// Currently we make the use/def reg distinction in ISel, not tablegen
class DForm_3<string name, bits<6> opcode, bit ppc64, bit vmx>
: DForm_1<name, opcode, ppc64, vmx>;
class DForm_4<string name, bits<6> opcode, bit ppc64, bit vmx>
: DForm_1<name, opcode, ppc64, vmx>;
class DForm_7<string name, bits<6> opcode, bit ppc64, bit vmx>
: DForm_base<name, opcode, ppc64, vmx> {
let Arg1Type = Imm5.Value;
}
//===----------------------------------------------------------------------===//
class PPC32InstPattern1 <string name, Format OperandType0, Format OperandType1, bits<6> opconstant0, bits<5> opconstant1, bit ppc64, bit vmx> : PPC32Inst {
let Name = name;
let ArgCount = 2;
@ -147,55 +226,6 @@ class PPC32InstPattern3 <string name, Format OperandType0, Format OperandType1,
let Inst {20-16} = operand1;
}
class PPC32InstPattern4 <string name, Format OperandType0, Format OperandType1, Format OperandType2, bits<6> opconstant0, bit ppc64, bit vmx> : PPC32Inst {
let Name = name;
let ArgCount = 3;
let PPC64 = ppc64;
let VMX =vmx;
let Arg0Type = OperandType0.Value;
let Arg1Type = OperandType1.Value;
let Arg2Type = OperandType2.Value;
let Arg3Type = 0;
let Arg4Type = 0;
let PPC64 = 0;
let VMX = 0;
bits<5> operand0;
bits<5> operand1;
bits<16> operand2;
let Inst {31-26} = opconstant0;
let Inst {20-16} = operand0;
let Inst {25-21} = operand1;
let Inst {15-0} = operand2;
}
class PPC32InstPattern5 <string name, Format OperandType0, Format OperandType1, Format OperandType2, bits<6> opconstant0, bits<11> opconstant1, bit ppc64, bit vmx> : PPC32Inst {
let Name = name;
let ArgCount = 3;
let PPC64 = ppc64;
let VMX =vmx;
let Arg0Type = OperandType0.Value;
let Arg1Type = OperandType1.Value;
let Arg2Type = OperandType2.Value;
let Arg3Type = 0;
let Arg4Type = 0;
let PPC64 = 0;
let VMX = 0;
bits<5> operand0;
bits<5> operand1;
bits<5> operand2;
let Inst {31-26} = opconstant0;
let Inst {10-0} = opconstant1;
let Inst {20-16} = operand0;
let Inst {25-21} = operand1;
let Inst {15-11} = operand2;
}
class PPC32InstPattern6 <string name, Format OperandType0, bits<6> opconstant0, bits<2> opconstant1, bit ppc64, bit vmx> : PPC32Inst {
let Name = name;
let ArgCount = 1;