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llvm-mirror/lib/Target/PowerPC/PPCInstr64Bit.td
Evan Cheng fe5bb5dbe6 Merge ISD::TRUNCSTORE to ISD::STORE. Switch to using StoreSDNode. 
llvm-svn: 30945
2006-10-13 21:14:26 +00:00

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TableGen
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//===- PPCInstr64Bit.td - The PowerPC 64-bit Support -------*- tablegen -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file was developed by Chris Lattner and is distributed under
// the University of Illinois Open Source License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file describes the PowerPC 64-bit instructions. These patterns are used
// both when in ppc64 mode and when in "use 64-bit extensions in 32-bit" mode.
//
//===----------------------------------------------------------------------===//
//===----------------------------------------------------------------------===//
// 64-bit operands.
//
def s16imm64 : Operand<i64> {
let PrintMethod = "printS16ImmOperand";
}
def u16imm64 : Operand<i64> {
let PrintMethod = "printU16ImmOperand";
}
def symbolHi64 : Operand<i64> {
let PrintMethod = "printSymbolHi";
}
def symbolLo64 : Operand<i64> {
let PrintMethod = "printSymbolLo";
}
//===----------------------------------------------------------------------===//
// 64-bit transformation functions.
//
def SHL64 : SDNodeXForm<imm, [{
// Transformation function: 63 - imm
return getI32Imm(63 - N->getValue());
}]>;
def SRL64 : SDNodeXForm<imm, [{
// Transformation function: 64 - imm
return N->getValue() ? getI32Imm(64 - N->getValue()) : getI32Imm(0);
}]>;
def HI32_48 : SDNodeXForm<imm, [{
// Transformation function: shift the immediate value down into the low bits.
return getI32Imm((unsigned short)(N->getValue() >> 32));
}]>;
def HI48_64 : SDNodeXForm<imm, [{
// Transformation function: shift the immediate value down into the low bits.
return getI32Imm((unsigned short)(N->getValue() >> 48));
}]>;
//===----------------------------------------------------------------------===//
// Pseudo instructions.
//
def IMPLICIT_DEF_G8RC : Pseudo<(ops G8RC:$rD), "; IMPLICIT_DEF_G8RC $rD",
[(set G8RC:$rD, (undef))]>;
let Pattern = [(PPCmtctr G8RC:$rS)] in {
def MTCTR8 : XFXForm_7_ext<31, 467, 9, (ops G8RC:$rS), "mtctr $rS", SprMTSPR>,
PPC970_DGroup_First, PPC970_Unit_FXU;
}
//===----------------------------------------------------------------------===//
// Fixed point instructions.
//
let PPC970_Unit = 1 in { // FXU Operations.
// Copies, extends, truncates.
def OR4To8 : XForm_6<31, 444, (ops G8RC:$rA, GPRC:$rS, GPRC:$rB),
"or $rA, $rS, $rB", IntGeneral,
[]>;
def OR8To4 : XForm_6<31, 444, (ops GPRC:$rA, G8RC:$rS, G8RC:$rB),
"or $rA, $rS, $rB", IntGeneral,
[]>;
def LI8 : DForm_2_r0<14, (ops G8RC:$rD, symbolLo64:$imm),
"li $rD, $imm", IntGeneral,
[(set G8RC:$rD, immSExt16:$imm)]>;
def LIS8 : DForm_2_r0<15, (ops G8RC:$rD, symbolHi64:$imm),
"lis $rD, $imm", IntGeneral,
[(set G8RC:$rD, imm16ShiftedSExt:$imm)]>;
// Logical ops.
def NAND8: XForm_6<31, 476, (ops G8RC:$rA, G8RC:$rS, G8RC:$rB),
"nand $rA, $rS, $rB", IntGeneral,
[(set G8RC:$rA, (not (and G8RC:$rS, G8RC:$rB)))]>;
def AND8 : XForm_6<31, 28, (ops G8RC:$rA, G8RC:$rS, G8RC:$rB),
"and $rA, $rS, $rB", IntGeneral,
[(set G8RC:$rA, (and G8RC:$rS, G8RC:$rB))]>;
def ANDC8: XForm_6<31, 60, (ops G8RC:$rA, G8RC:$rS, G8RC:$rB),
"andc $rA, $rS, $rB", IntGeneral,
[(set G8RC:$rA, (and G8RC:$rS, (not G8RC:$rB)))]>;
def OR8 : XForm_6<31, 444, (ops G8RC:$rA, G8RC:$rS, G8RC:$rB),
"or $rA, $rS, $rB", IntGeneral,
[(set G8RC:$rA, (or G8RC:$rS, G8RC:$rB))]>;
def NOR8 : XForm_6<31, 124, (ops G8RC:$rA, G8RC:$rS, G8RC:$rB),
"nor $rA, $rS, $rB", IntGeneral,
[(set G8RC:$rA, (not (or G8RC:$rS, G8RC:$rB)))]>;
def ORC8 : XForm_6<31, 412, (ops G8RC:$rA, G8RC:$rS, G8RC:$rB),
"orc $rA, $rS, $rB", IntGeneral,
[(set G8RC:$rA, (or G8RC:$rS, (not G8RC:$rB)))]>;
def EQV8 : XForm_6<31, 284, (ops G8RC:$rA, G8RC:$rS, G8RC:$rB),
"eqv $rA, $rS, $rB", IntGeneral,
[(set G8RC:$rA, (not (xor G8RC:$rS, G8RC:$rB)))]>;
def XOR8 : XForm_6<31, 316, (ops G8RC:$rA, G8RC:$rS, G8RC:$rB),
"xor $rA, $rS, $rB", IntGeneral,
[(set G8RC:$rA, (xor G8RC:$rS, G8RC:$rB))]>;
// Logical ops with immediate.
def ANDIo8 : DForm_4<28, (ops G8RC:$dst, G8RC:$src1, u16imm:$src2),
"andi. $dst, $src1, $src2", IntGeneral,
[(set G8RC:$dst, (and G8RC:$src1, immZExt16:$src2))]>,
isDOT;
def ANDISo8 : DForm_4<29, (ops G8RC:$dst, G8RC:$src1, u16imm:$src2),
"andis. $dst, $src1, $src2", IntGeneral,
[(set G8RC:$dst, (and G8RC:$src1,imm16ShiftedZExt:$src2))]>,
isDOT;
def ORI8 : DForm_4<24, (ops G8RC:$dst, G8RC:$src1, u16imm:$src2),
"ori $dst, $src1, $src2", IntGeneral,
[(set G8RC:$dst, (or G8RC:$src1, immZExt16:$src2))]>;
def ORIS8 : DForm_4<25, (ops G8RC:$dst, G8RC:$src1, u16imm:$src2),
"oris $dst, $src1, $src2", IntGeneral,
[(set G8RC:$dst, (or G8RC:$src1, imm16ShiftedZExt:$src2))]>;
def XORI8 : DForm_4<26, (ops G8RC:$dst, G8RC:$src1, u16imm:$src2),
"xori $dst, $src1, $src2", IntGeneral,
[(set G8RC:$dst, (xor G8RC:$src1, immZExt16:$src2))]>;
def XORIS8 : DForm_4<27, (ops G8RC:$dst, G8RC:$src1, u16imm:$src2),
"xoris $dst, $src1, $src2", IntGeneral,
[(set G8RC:$dst, (xor G8RC:$src1, imm16ShiftedZExt:$src2))]>;
def ADD8 : XOForm_1<31, 266, 0, (ops G8RC:$rT, G8RC:$rA, G8RC:$rB),
"add $rT, $rA, $rB", IntGeneral,
[(set G8RC:$rT, (add G8RC:$rA, G8RC:$rB))]>;
def ADDI8 : DForm_2<14, (ops G8RC:$rD, G8RC:$rA, s16imm64:$imm),
"addi $rD, $rA, $imm", IntGeneral,
[(set G8RC:$rD, (add G8RC:$rA, immSExt16:$imm))]>;
def ADDIS8 : DForm_2<15, (ops G8RC:$rD, G8RC:$rA, symbolHi64:$imm),
"addis $rD, $rA, $imm", IntGeneral,
[(set G8RC:$rD, (add G8RC:$rA, imm16ShiftedSExt:$imm))]>;
def SUBFIC8: DForm_2< 8, (ops G8RC:$rD, G8RC:$rA, s16imm64:$imm),
"subfic $rD, $rA, $imm", IntGeneral,
[(set G8RC:$rD, (subc immSExt16:$imm, G8RC:$rA))]>;
def SUBF8 : XOForm_1<31, 40, 0, (ops G8RC:$rT, G8RC:$rA, G8RC:$rB),
"subf $rT, $rA, $rB", IntGeneral,
[(set G8RC:$rT, (sub G8RC:$rB, G8RC:$rA))]>;
def MULHD : XOForm_1<31, 73, 0, (ops G8RC:$rT, G8RC:$rA, G8RC:$rB),
"mulhd $rT, $rA, $rB", IntMulHW,
[(set G8RC:$rT, (mulhs G8RC:$rA, G8RC:$rB))]>;
def MULHDU : XOForm_1<31, 9, 0, (ops G8RC:$rT, G8RC:$rA, G8RC:$rB),
"mulhdu $rT, $rA, $rB", IntMulHWU,
[(set G8RC:$rT, (mulhu G8RC:$rA, G8RC:$rB))]>;
def CMPD : XForm_16_ext<31, 0, (ops CRRC:$crD, G8RC:$rA, G8RC:$rB),
"cmpd $crD, $rA, $rB", IntCompare>, isPPC64;
def CMPLD : XForm_16_ext<31, 32, (ops CRRC:$crD, G8RC:$rA, G8RC:$rB),
"cmpld $crD, $rA, $rB", IntCompare>, isPPC64;
def CMPDI : DForm_5_ext<11, (ops CRRC:$crD, G8RC:$rA, s16imm:$imm),
"cmpdi $crD, $rA, $imm", IntCompare>, isPPC64;
def CMPLDI : DForm_6_ext<10, (ops CRRC:$dst, G8RC:$src1, u16imm:$src2),
"cmpldi $dst, $src1, $src2", IntCompare>, isPPC64;
def SLD : XForm_6<31, 27, (ops G8RC:$rA, G8RC:$rS, GPRC:$rB),
"sld $rA, $rS, $rB", IntRotateD,
[(set G8RC:$rA, (shl G8RC:$rS, GPRC:$rB))]>, isPPC64;
def SRD : XForm_6<31, 539, (ops G8RC:$rA, G8RC:$rS, GPRC:$rB),
"srd $rA, $rS, $rB", IntRotateD,
[(set G8RC:$rA, (srl G8RC:$rS, GPRC:$rB))]>, isPPC64;
def SRAD : XForm_6<31, 794, (ops G8RC:$rA, G8RC:$rS, GPRC:$rB),
"srad $rA, $rS, $rB", IntRotateD,
[(set G8RC:$rA, (sra G8RC:$rS, GPRC:$rB))]>, isPPC64;
def EXTSW : XForm_11<31, 986, (ops G8RC:$rA, G8RC:$rS),
"extsw $rA, $rS", IntGeneral,
[(set G8RC:$rA, (sext_inreg G8RC:$rS, i32))]>, isPPC64;
/// EXTSW_32 - Just like EXTSW, but works on '32-bit' registers.
def EXTSW_32 : XForm_11<31, 986, (ops GPRC:$rA, GPRC:$rS),
"extsw $rA, $rS", IntGeneral,
[(set GPRC:$rA, (PPCextsw_32 GPRC:$rS))]>, isPPC64;
def EXTSW_32_64 : XForm_11<31, 986, (ops G8RC:$rA, GPRC:$rS),
"extsw $rA, $rS", IntGeneral,
[(set G8RC:$rA, (sext GPRC:$rS))]>, isPPC64;
def SRADI : XSForm_1<31, 413, (ops G8RC:$rA, G8RC:$rS, u6imm:$SH),
"sradi $rA, $rS, $SH", IntRotateD,
[(set G8RC:$rA, (sra G8RC:$rS, (i32 imm:$SH)))]>, isPPC64;
def DIVD : XOForm_1<31, 489, 0, (ops G8RC:$rT, G8RC:$rA, G8RC:$rB),
"divd $rT, $rA, $rB", IntDivD,
[(set G8RC:$rT, (sdiv G8RC:$rA, G8RC:$rB))]>, isPPC64,
PPC970_DGroup_First, PPC970_DGroup_Cracked;
def DIVDU : XOForm_1<31, 457, 0, (ops G8RC:$rT, G8RC:$rA, G8RC:$rB),
"divdu $rT, $rA, $rB", IntDivD,
[(set G8RC:$rT, (udiv G8RC:$rA, G8RC:$rB))]>, isPPC64,
PPC970_DGroup_First, PPC970_DGroup_Cracked;
def MULLD : XOForm_1<31, 233, 0, (ops G8RC:$rT, G8RC:$rA, G8RC:$rB),
"mulld $rT, $rA, $rB", IntMulHD,
[(set G8RC:$rT, (mul G8RC:$rA, G8RC:$rB))]>, isPPC64;
let isTwoAddress = 1, isCommutable = 1 in {
def RLDIMI : MDForm_1<30, 3,
(ops G8RC:$rA, G8RC:$rSi, G8RC:$rS, u6imm:$SH, u6imm:$MB),
"rldimi $rA, $rS, $SH, $MB", IntRotateD,
[]>, isPPC64;
}
// Rotate instructions.
def RLDICL : MDForm_1<30, 0,
(ops G8RC:$rA, G8RC:$rS, u6imm:$SH, u6imm:$MB),
"rldicl $rA, $rS, $SH, $MB", IntRotateD,
[]>, isPPC64;
def RLDICR : MDForm_1<30, 1,
(ops G8RC:$rA, G8RC:$rS, u6imm:$SH, u6imm:$ME),
"rldicr $rA, $rS, $SH, $ME", IntRotateD,
[]>, isPPC64;
} // End FXU Operations.
//===----------------------------------------------------------------------===//
// Load/Store instructions.
//
let isLoad = 1, PPC970_Unit = 2 in {
// Sign extending loads.
def LHA8: DForm_1<42, (ops G8RC:$rD, memri:$src),
"lha $rD, $src", LdStLHA,
[(set G8RC:$rD, (sextloadi16 iaddr:$src))]>,
PPC970_DGroup_Cracked;
def LWA : DSForm_1<58, 2, (ops G8RC:$rD, memrix:$src),
"lwa $rD, $src", LdStLWA,
[(set G8RC:$rD, (sextloadi32 ixaddr:$src))]>, isPPC64,
PPC970_DGroup_Cracked;
def LHAX8: XForm_1<31, 343, (ops G8RC:$rD, memrr:$src),
"lhax $rD, $src", LdStLHA,
[(set G8RC:$rD, (sextloadi16 xaddr:$src))]>,
PPC970_DGroup_Cracked;
def LWAX : XForm_1<31, 341, (ops G8RC:$rD, memrr:$src),
"lwax $rD, $src", LdStLHA,
[(set G8RC:$rD, (sextloadi32 xaddr:$src))]>, isPPC64,
PPC970_DGroup_Cracked;
// Zero extending loads.
def LBZ8 : DForm_1<34, (ops G8RC:$rD, memri:$src),
"lbz $rD, $src", LdStGeneral,
[(set G8RC:$rD, (zextloadi8 iaddr:$src))]>;
def LHZ8 : DForm_1<40, (ops G8RC:$rD, memri:$src),
"lhz $rD, $src", LdStGeneral,
[(set G8RC:$rD, (zextloadi16 iaddr:$src))]>;
def LWZ8 : DForm_1<32, (ops G8RC:$rD, memri:$src),
"lwz $rD, $src", LdStGeneral,
[(set G8RC:$rD, (zextloadi32 iaddr:$src))]>, isPPC64;
def LBZX8 : XForm_1<31, 87, (ops G8RC:$rD, memrr:$src),
"lbzx $rD, $src", LdStGeneral,
[(set G8RC:$rD, (zextloadi8 xaddr:$src))]>;
def LHZX8 : XForm_1<31, 279, (ops G8RC:$rD, memrr:$src),
"lhzx $rD, $src", LdStGeneral,
[(set G8RC:$rD, (zextloadi16 xaddr:$src))]>;
def LWZX8 : XForm_1<31, 23, (ops G8RC:$rD, memrr:$src),
"lwzx $rD, $src", LdStGeneral,
[(set G8RC:$rD, (zextloadi32 xaddr:$src))]>;
// Full 8-byte loads.
def LD : DSForm_2<58, 0, (ops G8RC:$rD, memrix:$src),
"ld $rD, $src", LdStLD,
[(set G8RC:$rD, (load ixaddr:$src))]>, isPPC64;
def LDX : XForm_1<31, 21, (ops G8RC:$rD, memrr:$src),
"ldx $rD, $src", LdStLD,
[(set G8RC:$rD, (load xaddr:$src))]>, isPPC64;
}
let isStore = 1, noResults = 1, PPC970_Unit = 2 in {
// Normal stores.
def STD : DSForm_2<62, 0, (ops G8RC:$rS, memrix:$dst),
"std $rS, $dst", LdStSTD,
[(store G8RC:$rS, ixaddr:$dst)]>, isPPC64;
def STDX : XForm_8<31, 149, (ops G8RC:$rS, memrr:$dst),
"stdx $rS, $dst", LdStSTD,
[(store G8RC:$rS, xaddr:$dst)]>, isPPC64,
PPC970_DGroup_Cracked;
def STDUX : XForm_8<31, 181, (ops G8RC:$rS, memrr:$dst),
"stdux $rS, $dst", LdStSTD,
[]>, isPPC64;
// STD_32/STDX_32 - Just like STD/STDX, but uses a '32-bit' input register.
def STD_32 : DSForm_2<62, 0, (ops GPRC:$rT, memrix:$dst),
"std $rT, $dst", LdStSTD,
[(PPCstd_32 GPRC:$rT, ixaddr:$dst)]>, isPPC64;
def STDX_32 : XForm_8<31, 149, (ops GPRC:$rT, memrr:$dst),
"stdx $rT, $dst", LdStSTD,
[(PPCstd_32 GPRC:$rT, xaddr:$dst)]>, isPPC64,
PPC970_DGroup_Cracked;
// Truncating stores.
def STB8 : DForm_3<38, (ops G8RC:$rS, memri:$src),
"stb $rS, $src", LdStGeneral,
[(truncstorei8 G8RC:$rS, iaddr:$src)]>;
def STH8 : DForm_3<44, (ops G8RC:$rS, memri:$src),
"sth $rS, $src", LdStGeneral,
[(truncstorei16 G8RC:$rS, iaddr:$src)]>;
def STW8 : DForm_3<36, (ops G8RC:$rS, memri:$src),
"stw $rS, $src", LdStGeneral,
[(truncstorei32 G8RC:$rS, iaddr:$src)]>;
def STBX8 : XForm_8<31, 215, (ops G8RC:$rS, memrr:$dst),
"stbx $rS, $dst", LdStGeneral,
[(truncstorei8 G8RC:$rS, xaddr:$dst)]>,
PPC970_DGroup_Cracked;
def STHX8 : XForm_8<31, 407, (ops G8RC:$rS, memrr:$dst),
"sthx $rS, $dst", LdStGeneral,
[(truncstorei16 G8RC:$rS, xaddr:$dst)]>,
PPC970_DGroup_Cracked;
def STWX8 : XForm_8<31, 151, (ops G8RC:$rS, memrr:$dst),
"stwx $rS, $dst", LdStGeneral,
[(truncstorei32 G8RC:$rS, xaddr:$dst)]>,
PPC970_DGroup_Cracked;
}
//===----------------------------------------------------------------------===//
// Floating point instructions.
//
let PPC970_Unit = 3 in { // FPU Operations.
def FCFID : XForm_26<63, 846, (ops F8RC:$frD, F8RC:$frB),
"fcfid $frD, $frB", FPGeneral,
[(set F8RC:$frD, (PPCfcfid F8RC:$frB))]>, isPPC64;
def FCTIDZ : XForm_26<63, 815, (ops F8RC:$frD, F8RC:$frB),
"fctidz $frD, $frB", FPGeneral,
[(set F8RC:$frD, (PPCfctidz F8RC:$frB))]>, isPPC64;
}
//===----------------------------------------------------------------------===//
// Instruction Patterns
//
// Immediate support.
// Handled above:
// sext(0x0000_0000_0000_FFFF, i8) -> li imm
// sext(0x0000_0000_FFFF_0000, i16) -> lis imm>>16
// sext(0x0000_0000_FFFF_FFFF, i16) -> lis + ori
def sext_0x0000_0000_FFFF_FFFF_i16 : PatLeaf<(imm), [{
return N->getValue() == (uint64_t)(int32_t)N->getValue();
}]>;
def : Pat<(i64 sext_0x0000_0000_FFFF_FFFF_i16:$imm),
(ORI8 (LIS8 (HI16 imm:$imm)), (LO16 imm:$imm))>;
// zext(0x0000_0000_FFFF_7FFF, i16) -> oris (li lo16(imm)), imm>>16
def zext_0x0000_0000_FFFF_7FFF_i16 : PatLeaf<(imm), [{
return (N->getValue() & 0xFFFFFFFF00008000ULL) == 0;
}]>;
def : Pat<(i64 zext_0x0000_0000_FFFF_7FFF_i16:$imm),
(ORIS8 (LI8 (LO16 imm:$imm)), (HI16 imm:$imm))>;
// zext(0x0000_0000_FFFF_FFFF, i16) -> oris (ori (li 0), lo16(imm)), imm>>16
def zext_0x0000_0000_FFFF_FFFF_i16 : PatLeaf<(imm), [{
return (N->getValue() & 0xFFFFFFFF00000000ULL) == 0;
}]>;
def : Pat<(i64 zext_0x0000_0000_FFFF_FFFF_i16:$imm),
(ORIS8 (ORI8 (LI8 0), (LO16 imm:$imm)), (HI16 imm:$imm))>;
// FIXME: Handle smart forms where the top 32-bits are set. Right now, stuff
// like 0xABCD0123BCDE0000 hits the case below, which produces ORI R, R, 0's!
// Fully general (and most expensive: 6 instructions!) immediate pattern.
def : Pat<(i64 imm:$imm),
(ORI8
(ORIS8
(RLDICR
(ORI8
(LIS8 (HI48_64 imm:$imm)),
(HI32_48 imm:$imm)),
32, 31),
(HI16 imm:$imm)),
(LO16 imm:$imm))>;
// Extensions and truncates to/from 32-bit regs.
def : Pat<(i64 (zext GPRC:$in)),
(RLDICL (OR4To8 GPRC:$in, GPRC:$in), 0, 32)>;
def : Pat<(i64 (anyext GPRC:$in)),
(OR4To8 GPRC:$in, GPRC:$in)>;
def : Pat<(i32 (trunc G8RC:$in)),
(OR8To4 G8RC:$in, G8RC:$in)>;
// Extending loads with i64 targets.
def : Pat<(zextloadi1 iaddr:$src),
(LBZ8 iaddr:$src)>;
def : Pat<(zextloadi1 xaddr:$src),
(LBZX8 xaddr:$src)>;
def : Pat<(extloadi1 iaddr:$src),
(LBZ8 iaddr:$src)>;
def : Pat<(extloadi1 xaddr:$src),
(LBZX8 xaddr:$src)>;
def : Pat<(extloadi8 iaddr:$src),
(LBZ8 iaddr:$src)>;
def : Pat<(extloadi8 xaddr:$src),
(LBZX8 xaddr:$src)>;
def : Pat<(extloadi16 iaddr:$src),
(LHZ8 iaddr:$src)>;
def : Pat<(extloadi16 xaddr:$src),
(LHZX8 xaddr:$src)>;
def : Pat<(extloadi32 iaddr:$src),
(LWZ8 iaddr:$src)>;
def : Pat<(extloadi32 xaddr:$src),
(LWZX8 xaddr:$src)>;
// SHL/SRL
def : Pat<(shl G8RC:$in, (i32 imm:$imm)),
(RLDICR G8RC:$in, imm:$imm, (SHL64 imm:$imm))>;
def : Pat<(srl G8RC:$in, (i32 imm:$imm)),
(RLDICL G8RC:$in, (SRL64 imm:$imm), imm:$imm)>;
// Hi and Lo for Darwin Global Addresses.
def : Pat<(PPChi tglobaladdr:$in, 0), (LIS8 tglobaladdr:$in)>;
def : Pat<(PPClo tglobaladdr:$in, 0), (LI8 tglobaladdr:$in)>;
def : Pat<(PPChi tconstpool:$in , 0), (LIS8 tconstpool:$in)>;
def : Pat<(PPClo tconstpool:$in , 0), (LI8 tconstpool:$in)>;
def : Pat<(PPChi tjumptable:$in , 0), (LIS8 tjumptable:$in)>;
def : Pat<(PPClo tjumptable:$in , 0), (LI8 tjumptable:$in)>;
def : Pat<(add G8RC:$in, (PPChi tglobaladdr:$g, 0)),
(ADDIS8 G8RC:$in, tglobaladdr:$g)>;
def : Pat<(add G8RC:$in, (PPChi tconstpool:$g, 0)),
(ADDIS8 G8RC:$in, tconstpool:$g)>;
def : Pat<(add G8RC:$in, (PPChi tjumptable:$g, 0)),
(ADDIS8 G8RC:$in, tjumptable:$g)>;
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