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Mark instructions that are cracked by the PPC970 decoder as such. 

llvm-svn: 26720
This commit is contained in:
Chris Lattner 2006-03-13 05:15:10 +00:00
parent 51348c5f27
commit 7579cfb1a0
4 changed files with 37 additions and 26 deletions
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5
llvm/lib/Target/PowerPC/PPC.td
View File

@ -72,10 +72,9 @@ def PPCInstrInfo : InstrInfo {
// should be kept up-to-date with the fields in the PPCInstrInfo.h file.
let TSFlagsFields = ["PPC970_First",
"PPC970_Single",
"PPC970_Cracked",
"PPC970_Unit"];
let TSFlagsShifts = [0,
1,
2];
let TSFlagsShifts = [0, 1, 2, 3];
let isLittleEndianEncoding = 1;
}

9
llvm/lib/Target/PowerPC/PPCInstrFormats.td
View File

@ -6,9 +6,6 @@
// the University of Illinois Open Source License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
//
//===----------------------------------------------------------------------===//
//===----------------------------------------------------------------------===//
//
@ -32,11 +29,13 @@ class I<bits<6> opcode, dag OL, string asmstr, InstrItinClass itin>
/// these must be reflected there! See comments there for what these are.
bits<1> PPC970_First = 0;
bits<1> PPC970_Single = 0;
bits<1> PPC970_Cracked = 0;
bits<3> PPC970_Unit = 0;
}
class PPC970_DGroup_First { bits<1> PPC970_First = 1; }
class PPC970_DGroup_Single { bits<1> PPC970_Single = 1; }
class PPC970_DGroup_First { bits<1> PPC970_First = 1; }
class PPC970_DGroup_Single { bits<1> PPC970_Single = 1; }
class PPC970_DGroup_Cracked { bits<1> PPC970_Cracked = 1; }
class PPC970_MicroCode;
class PPC970_Unit_Pseudo { bits<3> PPC970_Unit = 0; }

6
llvm/lib/Target/PowerPC/PPCInstrInfo.h
View File

@ -37,9 +37,13 @@ enum {
/// terminates it, so it will be the sole instruction in the group.
PPC970_Single = 0x2,
/// PPC970_Cracked - This instruction is cracked into two pieces, requiring
/// two dispatch pipes to be available to issue.
PPC970_Cracked = 0x4,
/// PPC970_Mask/Shift - This is a bitmask that selects the pipeline type that
/// an instruction is issued to.
PPC970_Shift = 2,
PPC970_Shift = 3,
PPC970_Mask = 0x07 << PPC970_Shift,
};
enum PPC970_Unit {

43
llvm/lib/Target/PowerPC/PPCInstrInfo.td
View File

@ -293,7 +293,8 @@ def LBZ : DForm_1<34, (ops GPRC:$rD, memri:$src),
[(set GPRC:$rD, (zextload iaddr:$src, i8))]>;
def LHA : DForm_1<42, (ops GPRC:$rD, memri:$src),
"lha $rD, $src", LdStLHA,
[(set GPRC:$rD, (sextload iaddr:$src, i16))]>;
[(set GPRC:$rD, (sextload iaddr:$src, i16))]>,
PPC970_DGroup_Cracked;
def LHZ : DForm_1<40, (ops GPRC:$rD, memri:$src),
"lhz $rD, $src", LdStGeneral,
[(set GPRC:$rD, (zextload iaddr:$src, i16))]>;
@ -313,7 +314,8 @@ def ADDI : DForm_2<14, (ops GPRC:$rD, GPRC:$rA, s16imm:$imm),
[(set GPRC:$rD, (add GPRC:$rA, immSExt16:$imm))]>;
def ADDIC : DForm_2<12, (ops GPRC:$rD, GPRC:$rA, s16imm:$imm),
"addic $rD, $rA, $imm", IntGeneral,
[(set GPRC:$rD, (addc GPRC:$rA, immSExt16:$imm))]>;
[(set GPRC:$rD, (addc GPRC:$rA, immSExt16:$imm))]>,
PPC970_DGroup_Cracked;
def ADDICo : DForm_2<13, (ops GPRC:$rD, GPRC:$rA, s16imm:$imm),
"addic. $rD, $rA, $imm", IntGeneral,
[]>;
@ -412,7 +414,7 @@ def STFD : DForm_9<54, (ops F8RC:$rS, memri:$dst),
let isLoad = 1, PPC970_Unit = 2 in {
def LWA : DSForm_1<58, 2, (ops GPRC:$rT, s16immX4:$DS, GPRC:$rA),
"lwa $rT, $DS($rA)", LdStLWA,
[]>, isPPC64;
[]>, isPPC64, PPC970_DGroup_Cracked;
def LD : DSForm_2<58, 0, (ops GPRC:$rT, s16immX4:$DS, GPRC:$rA),
"ld $rT, $DS($rA)", LdStLD,
[]>, isPPC64;
@ -435,13 +437,15 @@ def LBZX : XForm_1<31, 87, (ops GPRC:$rD, memrr:$src),
[(set GPRC:$rD, (zextload xaddr:$src, i8))]>;
def LHAX : XForm_1<31, 343, (ops GPRC:$rD, memrr:$src),
"lhax $rD, $src", LdStLHA,
[(set GPRC:$rD, (sextload xaddr:$src, i16))]>;
[(set GPRC:$rD, (sextload xaddr:$src, i16))]>,
PPC970_DGroup_Cracked;
def LHZX : XForm_1<31, 279, (ops GPRC:$rD, memrr:$src),
"lhzx $rD, $src", LdStGeneral,
[(set GPRC:$rD, (zextload xaddr:$src, i16))]>;
def LWAX : XForm_1<31, 341, (ops G8RC:$rD, memrr:$src),
"lwax $rD, $src", LdStLHA,
[(set G8RC:$rD, (sextload xaddr:$src, i32))]>, isPPC64;
[(set G8RC:$rD, (sextload xaddr:$src, i32))]>, isPPC64,
PPC970_DGroup_Cracked;
def LWZX : XForm_1<31, 23, (ops GPRC:$rD, memrr:$src),
"lwzx $rD, $src", LdStGeneral,
[(set GPRC:$rD, (load xaddr:$src))]>;
@ -529,19 +533,22 @@ def SRAW : XForm_6<31, 792, (ops GPRC:$rA, GPRC:$rS, GPRC:$rB),
let isStore = 1, noResults = 1, PPC970_Unit = 2 in {
def STBX : XForm_8<31, 215, (ops GPRC:$rS, memrr:$dst),
"stbx $rS, $dst", LdStGeneral,
[(truncstore GPRC:$rS, xaddr:$dst, i8)]>;
[(truncstore GPRC:$rS, xaddr:$dst, i8)]>,
PPC970_DGroup_Cracked;
def STHX : XForm_8<31, 407, (ops GPRC:$rS, memrr:$dst),
"sthx $rS, $dst", LdStGeneral,
[(truncstore GPRC:$rS, xaddr:$dst, i16)]>;
[(truncstore GPRC:$rS, xaddr:$dst, i16)]>,
PPC970_DGroup_Cracked;
def STWX : XForm_8<31, 151, (ops GPRC:$rS, memrr:$dst),
"stwx $rS, $dst", LdStGeneral,
[(store GPRC:$rS, xaddr:$dst)]>;
[(store GPRC:$rS, xaddr:$dst)]>,
PPC970_DGroup_Cracked;
def STWUX : XForm_8<31, 183, (ops GPRC:$rS, GPRC:$rA, GPRC:$rB),
"stwux $rS, $rA, $rB", LdStGeneral,
[]>;
def STDX : XForm_8<31, 149, (ops GPRC:$rS, GPRC:$rA, GPRC:$rB),
"stdx $rS, $rA, $rB", LdStSTD,
[]>, isPPC64;
[]>, isPPC64, PPC970_DGroup_Cracked;
def STDUX : XForm_8<31, 181, (ops GPRC:$rS, GPRC:$rA, GPRC:$rB),
"stdux $rS, $rA, $rB", LdStSTD,
[]>, isPPC64;
@ -721,26 +728,27 @@ def ADD8 : XOForm_1<31, 266, 0, (ops G8RC:$rT, G8RC:$rA, G8RC:$rB),
[(set G8RC:$rT, (add G8RC:$rA, G8RC:$rB))]>;
def ADDC : XOForm_1<31, 10, 0, (ops GPRC:$rT, GPRC:$rA, GPRC:$rB),
"addc $rT, $rA, $rB", IntGeneral,
[(set GPRC:$rT, (addc GPRC:$rA, GPRC:$rB))]>;
[(set GPRC:$rT, (addc GPRC:$rA, GPRC:$rB))]>,
PPC970_DGroup_Cracked;
def ADDE : XOForm_1<31, 138, 0, (ops GPRC:$rT, GPRC:$rA, GPRC:$rB),
"adde $rT, $rA, $rB", IntGeneral,
[(set GPRC:$rT, (adde GPRC:$rA, GPRC:$rB))]>;
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_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_First, PPC970_DGroup_Cracked;
def DIVW : XOForm_1<31, 491, 0, (ops GPRC:$rT, GPRC:$rA, GPRC:$rB),
"divw $rT, $rA, $rB", IntDivW,
[(set GPRC:$rT, (sdiv GPRC:$rA, GPRC:$rB))]>,
PPC970_DGroup_First;
PPC970_DGroup_First, PPC970_DGroup_Cracked;
def DIVWU : XOForm_1<31, 459, 0, (ops GPRC:$rT, GPRC:$rA, GPRC:$rB),
"divwu $rT, $rA, $rB", IntDivW,
[(set GPRC:$rT, (udiv GPRC:$rA, GPRC:$rB))]>,
PPC970_DGroup_First;
PPC970_DGroup_First, PPC970_DGroup_Cracked;
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))]>;
@ -764,7 +772,8 @@ def SUBF : XOForm_1<31, 40, 0, (ops GPRC:$rT, GPRC:$rA, GPRC:$rB),
[(set GPRC:$rT, (sub GPRC:$rB, GPRC:$rA))]>;
def SUBFC : XOForm_1<31, 8, 0, (ops GPRC:$rT, GPRC:$rA, GPRC:$rB),
"subfc $rT, $rA, $rB", IntGeneral,
[(set GPRC:$rT, (subc GPRC:$rB, GPRC:$rA))]>;
[(set GPRC:$rT, (subc GPRC:$rB, GPRC:$rA))]>,
PPC970_DGroup_Cracked;
def SUBFE : XOForm_1<31, 136, 0, (ops GPRC:$rT, GPRC:$rA, GPRC:$rB),
"subfe $rT, $rA, $rB", IntGeneral,
[(set GPRC:$rT, (sube GPRC:$rB, GPRC:$rA))]>;
@ -891,7 +900,7 @@ let isTwoAddress = 1, isCommutable = 1 in {
def RLWIMI : MForm_2<20,
(ops GPRC:$rA, GPRC:$rSi, GPRC:$rS, u5imm:$SH, u5imm:$MB,
u5imm:$ME), "rlwimi $rA, $rS, $SH, $MB, $ME", IntRotate,
[]>;
[]>, PPC970_DGroup_Cracked;
def RLDIMI : MDForm_1<30, 3,
(ops G8RC:$rA, G8RC:$rSi, G8RC:$rS, u6imm:$SH, u6imm:$MB),
"rldimi $rA, $rS, $SH, $MB", IntRotateD,
@ -904,7 +913,7 @@ def RLWINM : MForm_2<21,
def RLWINMo : MForm_2<21,
(ops GPRC:$rA, GPRC:$rS, u5imm:$SH, u5imm:$MB, u5imm:$ME),
"rlwinm. $rA, $rS, $SH, $MB, $ME", IntGeneral,
[]>, isDOT;
[]>, isDOT, PPC970_DGroup_Cracked;
def RLWNM : MForm_2<23,
(ops GPRC:$rA, GPRC:$rS, GPRC:$rB, u5imm:$MB, u5imm:$ME),
"rlwnm $rA, $rS, $rB, $MB, $ME", IntGeneral,