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[mips] Redefine TAILCALL as a pseudo instruction.

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No functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195896 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Akira Hatanaka 2013-11-27 23:58:32 +00:00
parent ecd3f0bce9
commit 92b8543819
3 changed files with 15 additions and 10 deletions
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4
lib/Target/Mips/MicroMipsInstrInfo.td
View File

@ -175,13 +175,9 @@ let DecoderNamespace = "MicroMips", Predicates = [InMicroMips] in {
def J_MM : MMRel, JumpFJ<jmptarget_mm, "j", br, bb, "j">,
J_FM_MM<0x35>;
def JAL_MM : MMRel, JumpLink<"jal", calltarget_mm>, J_FM_MM<0x3d>;
def TAILCALL_MM : MMRel, JumpFJ<calltarget_mm, "j", MipsTailCall, imm,
"tcall">, J_FM_MM<0x3d>, IsTailCall;
}
def JR_MM : MMRel, IndirectBranch<"jr", GPR32Opnd>, JR_FM_MM<0x3c>;
def JALR_MM : MMRel, JumpLinkReg<"jalr", GPR32Opnd>, JALR_FM_MM<0x03c>;
def TAILCALL_R_MM : MMRel, JumpFR<"tcallr", GPR32Opnd, MipsTailCall>,
JR_FM_MM<0x3c>, IsTailCall;
def RET_MM : MMRel, RetBase<"ret", GPR32Opnd>, JR_FM_MM<0x3c>;
/// Branch Instructions

3
lib/Target/Mips/Mips64InstrInfo.td
View File

@ -159,8 +159,7 @@ def BLEZ64 : CBranchZero<"blez", brtarget, setle, GPR64Opnd>, BGEZ_FM<6, 0>;
def BLTZ64 : CBranchZero<"bltz", brtarget, setlt, GPR64Opnd>, BGEZ_FM<1, 0>;
def JALR64 : JumpLinkReg<"jalr", GPR64Opnd>, JALR_FM;
def JALR64Pseudo : JumpLinkRegPseudo<GPR64Opnd, JALR, RA, GPR32Opnd>;
def TAILCALL64_R : JumpFR<"tcallr", GPR64Opnd, MipsTailCall>,
MTLO_FM<8>, IsTailCall;
def TAILCALL64_R : TailCallReg<GPR64Opnd, JR, GPR32Opnd>;
}
/// Multiply and Divide Instructions.

18
lib/Target/Mips/MipsInstrInfo.td
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@ -611,6 +611,18 @@ let isCall=1, hasDelaySlot=1, Defs = [RA] in {
}
let isCall = 1, isTerminator = 1, isReturn = 1, isBarrier = 1, hasDelaySlot = 1,
hasExtraSrcRegAllocReq = 1, Defs = [AT] in {
class TailCall<Instruction JumpInst> :
PseudoSE<(outs), (ins calltarget:$target), [], IIBranch>,
PseudoInstExpansion<(JumpInst jmptarget:$target)>;
class TailCallReg<RegisterOperand RO, Instruction JRInst,
RegisterOperand ResRO = RO> :
PseudoSE<(outs), (ins RO:$rs), [(MipsTailCall RO:$rs)], IIBranch>,
PseudoInstExpansion<(JRInst ResRO:$rs)>;
}
class BAL_BR_Pseudo<Instruction RealInst> :
PseudoSE<(outs), (ins brtarget:$offset), [], IIBranch>,
PseudoInstExpansion<(RealInst ZERO, brtarget:$offset)> {
@ -1018,10 +1030,8 @@ def JALRPseudo : JumpLinkRegPseudo<GPR32Opnd, JALR, RA>;
def BGEZAL : MMRel, BGEZAL_FT<"bgezal", brtarget, GPR32Opnd>, BGEZAL_FM<0x11>;
def BLTZAL : MMRel, BGEZAL_FT<"bltzal", brtarget, GPR32Opnd>, BGEZAL_FM<0x10>;
def BAL_BR : BAL_BR_Pseudo<BGEZAL>;
def TAILCALL : MMRel, JumpFJ<calltarget, "j", MipsTailCall, imm, "tcall">,
FJ<2>, IsTailCall;
def TAILCALL_R : MMRel, JumpFR<"tcallr", GPR32Opnd, MipsTailCall>, MTLO_FM<8>,
IsTailCall;
def TAILCALL : TailCall<J>;
def TAILCALL_R : TailCallReg<GPR32Opnd, JR>;
def RET : MMRel, RetBase<"ret", GPR32Opnd>, MTLO_FM<8>;