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[Hexagon] Adding classes and load unsigned byte instruction, updating usages. 

llvm-svn: 224730
This commit is contained in:
Colin LeMahieu 2014-12-22 21:20:03 +00:00
parent 19c07165d1
commit af1e5de141
7 changed files with 137 additions and 28 deletions
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2
llvm/lib/Target/Hexagon/HexagonISelDAGToDAG.cpp
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@ -612,7 +612,7 @@ SDNode *HexagonDAGToDAGISel::SelectIndexedLoad(LoadSDNode *LD, SDLoc dl) {
if (TII->isValidAutoIncImm(LoadedVT, Val))
Opcode = zextval ? Hexagon::POST_LDriub : Hexagon::POST_LDrib;
else
Opcode = zextval ? Hexagon::LDriub : Hexagon::LDrib;
Opcode = zextval ? Hexagon::L2_loadrub_io : Hexagon::LDrib;
} else
llvm_unreachable("unknown memory type");

13
llvm/lib/Target/Hexagon/HexagonInstrInfo.cpp
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@ -82,7 +82,7 @@ unsigned HexagonInstrInfo::isLoadFromStackSlot(const MachineInstr *MI,
case Hexagon::LDrid:
case Hexagon::LDrih:
case Hexagon::LDrib:
case Hexagon::LDriub:
case Hexagon::L2_loadrub_io:
if (MI->getOperand(2).isFI() &&
MI->getOperand(1).isImm() && (MI->getOperand(1).getImm() == 0)) {
FrameIndex = MI->getOperand(2).getIndex();
@ -685,9 +685,8 @@ bool HexagonInstrInfo::isPredicable(MachineInstr *MI) const {
return isShiftedUInt<6,1>(MI->getOperand(2).getImm());
case Hexagon::LDrib:
case Hexagon::LDriub:
case Hexagon::L2_loadrub_io:
case Hexagon::LDrib_indexed:
case Hexagon::LDriub_indexed:
return isUInt<6>(MI->getOperand(2).getImm());
case Hexagon::POST_LDrid:
@ -1133,7 +1132,7 @@ isValidOffset(const int Opcode, const int Offset) const {
case Hexagon::LDrib:
case Hexagon::STrib:
case Hexagon::LDriub:
case Hexagon::L2_loadrub_io:
return (Offset >= Hexagon_MEMB_OFFSET_MIN) &&
(Offset <= Hexagon_MEMB_OFFSET_MAX);
@ -1372,10 +1371,8 @@ isConditionalLoad (const MachineInstr* MI) const {
case Hexagon::LDriuh_cNotPt :
case Hexagon::LDriuh_indexed_cPt :
case Hexagon::LDriuh_indexed_cNotPt :
case Hexagon::LDriub_cPt :
case Hexagon::LDriub_cNotPt :
case Hexagon::LDriub_indexed_cPt :
case Hexagon::LDriub_indexed_cNotPt :
case Hexagon::L2_ploadrubt_io:
case Hexagon::L2_ploadrubf_io:
return true;
case Hexagon::POST_LDrid_cPt :
case Hexagon::POST_LDrid_cNotPt :

120
llvm/lib/Target/Hexagon/HexagonInstrInfo.td
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@ -1451,6 +1451,101 @@ def: Pat<(brind (i32 IntRegs:$dst)),
//===----------------------------------------------------------------------===//
// LD +
//===----------------------------------------------------------------------===//
let isExtendable = 1, opExtendable = 2, isExtentSigned = 1, AddedComplexity = 20 in
class T_load_io <string mnemonic, RegisterClass RC, bits<4> MajOp,
Operand ImmOp>
: LDInst<(outs RC:$dst), (ins IntRegs:$src1, ImmOp:$offset),
"$dst = "#mnemonic#"($src1 + #$offset)", []>, AddrModeRel {
bits<4> name;
bits<5> dst;
bits<5> src1;
bits<14> offset;
bits<11> offsetBits;
string ImmOpStr = !cast<string>(ImmOp);
let offsetBits = !if (!eq(ImmOpStr, "s11_3Ext"), offset{13-3},
!if (!eq(ImmOpStr, "s11_2Ext"), offset{12-2},
!if (!eq(ImmOpStr, "s11_1Ext"), offset{11-1},
/* s11_0Ext */ offset{10-0})));
let opExtentBits = !if (!eq(ImmOpStr, "s11_3Ext"), 14,
!if (!eq(ImmOpStr, "s11_2Ext"), 13,
!if (!eq(ImmOpStr, "s11_1Ext"), 12,
/* s11_0Ext */ 11)));
let hasNewValue = !if (!eq(ImmOpStr, "s11_3Ext"), 0, 1);
let IClass = 0b1001;
let Inst{27} = 0b0;
let Inst{26-25} = offsetBits{10-9};
let Inst{24-21} = MajOp;
let Inst{20-16} = src1;
let Inst{13-5} = offsetBits{8-0};
let Inst{4-0} = dst;
}
let opExtendable = 3, isExtentSigned = 0, isPredicated = 1 in
class T_pload_io <string mnemonic, RegisterClass RC, bits<4>MajOp,
Operand ImmOp, bit isNot, bit isPredNew>
: LDInst<(outs RC:$dst),
(ins PredRegs:$src1, IntRegs:$src2, ImmOp:$offset),
"if ("#!if(isNot, "!$src1", "$src1")
#!if(isPredNew, ".new", "")
#") $dst = "#mnemonic#"($src2 + #$offset)",
[],"", V2LDST_tc_ld_SLOT01> , AddrModeRel {
bits<5> dst;
bits<2> src1;
bits<5> src2;
bits<9> offset;
bits<6> offsetBits;
string ImmOpStr = !cast<string>(ImmOp);
let offsetBits = !if (!eq(ImmOpStr, "u6_3Ext"), offset{8-3},
!if (!eq(ImmOpStr, "u6_2Ext"), offset{7-2},
!if (!eq(ImmOpStr, "u6_1Ext"), offset{6-1},
/* u6_0Ext */ offset{5-0})));
let opExtentBits = !if (!eq(ImmOpStr, "u6_3Ext"), 9,
!if (!eq(ImmOpStr, "u6_2Ext"), 8,
!if (!eq(ImmOpStr, "u6_1Ext"), 7,
/* u6_0Ext */ 6)));
let hasNewValue = !if (!eq(ImmOpStr, "u6_3Ext"), 0, 1);
let isPredicatedNew = isPredNew;
let isPredicatedFalse = isNot;
let IClass = 0b0100;
let Inst{27} = 0b0;
let Inst{27} = 0b0;
let Inst{26} = isNot;
let Inst{25} = isPredNew;
let Inst{24-21} = MajOp;
let Inst{20-16} = src2;
let Inst{13} = 0b0;
let Inst{12-11} = src1;
let Inst{10-5} = offsetBits;
let Inst{4-0} = dst;
}
let isExtendable = 1, hasSideEffects = 0, addrMode = BaseImmOffset in
multiclass LD_Idxd<string mnemonic, string CextOp, RegisterClass RC,
Operand ImmOp, Operand predImmOp, bits<4>MajOp> {
let CextOpcode = CextOp, BaseOpcode = CextOp#_indexed in {
let isPredicable = 1 in
def L2_#NAME#_io : T_load_io <mnemonic, RC, MajOp, ImmOp>;
// Predicated
def L2_p#NAME#t_io : T_pload_io <mnemonic, RC, MajOp, predImmOp, 0, 0>;
def L2_p#NAME#f_io : T_pload_io <mnemonic, RC, MajOp, predImmOp, 1, 0>;
// Predicated new
def L2_p#NAME#tnew_io : T_pload_io <mnemonic, RC, MajOp, predImmOp, 0, 1>;
def L2_p#NAME#fnew_io : T_pload_io <mnemonic, RC, MajOp, predImmOp, 1, 1>;
}
}
let accessSize = ByteAccess, isCodeGenOnly = 0 in {
defm loadrub: LD_Idxd <"memub", "LDriub", IntRegs, s11_0Ext, u6_0Ext, 0b1001>;
}
///
// Load -- MEMri operand
multiclass LD_MEMri_Pbase<string mnemonic, RegisterClass RC,
@ -1493,7 +1588,6 @@ multiclass LD_MEMri<string mnemonic, string CextOp, RegisterClass RC,
let addrMode = BaseImmOffset, isMEMri = "true" in {
let accessSize = ByteAccess in {
defm LDrib: LD_MEMri < "memb", "LDrib", IntRegs, 11, 6>, AddrModeRel;
defm LDriub: LD_MEMri < "memub" , "LDriub", IntRegs, 11, 6>, AddrModeRel;
}
let accessSize = HalfWordAccess in {
@ -1512,7 +1606,7 @@ def : Pat < (i32 (sextloadi8 ADDRriS11_0:$addr)),
(LDrib ADDRriS11_0:$addr) >;
def : Pat < (i32 (zextloadi8 ADDRriS11_0:$addr)),
(LDriub ADDRriS11_0:$addr) >;
(L2_loadrub_io AddrFI:$addr, 0) >;
def : Pat < (i32 (sextloadi16 ADDRriS11_1:$addr)),
(LDrih ADDRriS11_1:$addr) >;
@ -1571,8 +1665,6 @@ let addrMode = BaseImmOffset in {
let accessSize = ByteAccess in {
defm LDrib_indexed: LD_Idxd2 <"memb", "LDrib", IntRegs, s11_0Ext, u6_0Ext,
11, 6>, AddrModeRel;
defm LDriub_indexed: LD_Idxd2 <"memub" , "LDriub", IntRegs, s11_0Ext, u6_0Ext,
11, 6>, AddrModeRel;
}
let accessSize = HalfWordAccess in {
defm LDrih_indexed: LD_Idxd2 <"memh", "LDrih", IntRegs, s11_1Ext, u6_1Ext,
@ -1594,7 +1686,7 @@ def : Pat < (i32 (sextloadi8 (add IntRegs:$src1, s11_0ExtPred:$offset))),
(LDrib_indexed IntRegs:$src1, s11_0ExtPred:$offset) >;
def : Pat < (i32 (zextloadi8 (add IntRegs:$src1, s11_0ExtPred:$offset))),
(LDriub_indexed IntRegs:$src1, s11_0ExtPred:$offset) >;
(L2_loadrub_io IntRegs:$src1, s11_0ExtPred:$offset) >;
def : Pat < (i32 (sextloadi16 (add IntRegs:$src1, s11_1ExtPred:$offset))),
(LDrih_indexed IntRegs:$src1, s11_1ExtPred:$offset) >;
@ -1688,11 +1780,11 @@ def : Pat < (i32 (extloadi16 (add IntRegs:$src1, s11_1ImmPred:$offset))),
let AddedComplexity = 10 in
def : Pat < (i32 (zextloadi1 ADDRriS11_0:$addr)),
(i32 (LDriub ADDRriS11_0:$addr))>;
(i32 (L2_loadrub_io AddrFI:$addr, 0))>;
let AddedComplexity = 20 in
def : Pat < (i32 (zextloadi1 (add IntRegs:$src1, s11_0ImmPred:$offset))),
(i32 (LDriub_indexed IntRegs:$src1, s11_0ImmPred:$offset))>;
(i32 (L2_loadrub_io IntRegs:$src1, s11_0ImmPred:$offset))>;
// Load predicate.
let isExtendable = 1, opExtendable = 2, isExtentSigned = 1, opExtentBits = 13,
@ -3569,10 +3661,10 @@ def : Pat<(HexagonTCRet (i32 IntRegs:$dst)),
// Atomic load and store support
// 8 bit atomic load
def : Pat<(atomic_load_8 ADDRriS11_0:$src1),
(i32 (LDriub ADDRriS11_0:$src1))>;
(i32 (L2_loadrub_io AddrFI:$src1, 0))>;
def : Pat<(atomic_load_8 (add (i32 IntRegs:$src1), s11_0ImmPred:$offset)),
(i32 (LDriub_indexed (i32 IntRegs:$src1), s11_0ImmPred:$offset))>;
(i32 (L2_loadrub_io (i32 IntRegs:$src1), s11_0ImmPred:$offset))>;
// 16 bit atomic load
def : Pat<(atomic_load_16 ADDRriS11_1:$src1),
@ -3675,7 +3767,7 @@ def : Pat <(and (i1 PredRegs:$src1), (not (i1 PredRegs:$src2))),
let AddedComplexity = 100 in
def : Pat <(i64 (zextloadi1 (HexagonCONST32 tglobaladdr:$global))),
(i64 (A2_combinew (A2_tfrsi 0),
(LDriub_indexed (CONST32_set tglobaladdr:$global), 0)))>,
(L2_loadrub_io (CONST32_set tglobaladdr:$global), 0)))>,
Requires<[NoV4T]>;
// Map from i1 loads to 32 bits. This assumes that the i1* is byte aligned.
@ -3969,25 +4061,25 @@ def : Pat <(i64 (zext (i32 IntRegs:$src1))),
// i8 -> i64
def: Pat <(i64 (zextloadi8 ADDRriS11_0:$src1)),
(i64 (A2_combinew (A2_tfrsi 0), (LDriub ADDRriS11_0:$src1)))>,
(i64 (A2_combinew (A2_tfrsi 0), (L2_loadrub_io AddrFI:$src1, 0)))>,
Requires<[NoV4T]>;
let AddedComplexity = 20 in
def: Pat <(i64 (zextloadi8 (add (i32 IntRegs:$src1),
s11_0ExtPred:$offset))),
(i64 (A2_combinew (A2_tfrsi 0), (LDriub_indexed IntRegs:$src1,
(i64 (A2_combinew (A2_tfrsi 0), (L2_loadrub_io IntRegs:$src1,
s11_0ExtPred:$offset)))>,
Requires<[NoV4T]>;
// i1 -> i64
def: Pat <(i64 (zextloadi1 ADDRriS11_0:$src1)),
(i64 (A2_combinew (A2_tfrsi 0), (LDriub ADDRriS11_0:$src1)))>,
(i64 (A2_combinew (A2_tfrsi 0), (L2_loadrub_io AddrFI:$src1, 0)))>,
Requires<[NoV4T]>;
let AddedComplexity = 20 in
def: Pat <(i64 (zextloadi1 (add (i32 IntRegs:$src1),
s11_0ExtPred:$offset))),
(i64 (A2_combinew (A2_tfrsi 0), (LDriub_indexed IntRegs:$src1,
(i64 (A2_combinew (A2_tfrsi 0), (L2_loadrub_io IntRegs:$src1,
s11_0ExtPred:$offset)))>,
Requires<[NoV4T]>;

8
llvm/lib/Target/Hexagon/HexagonInstrInfoV4.td
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@ -412,25 +412,25 @@ def : Pat <(i64 (zext (i32 IntRegs:$src1))),
Requires<[HasV4T]>;
// zext i8->i64
def: Pat <(i64 (zextloadi8 ADDRriS11_0:$src1)),
(i64 (COMBINE_Ir_V4 0, (LDriub ADDRriS11_0:$src1)))>,
(i64 (COMBINE_Ir_V4 0, (L2_loadrub_io AddrFI:$src1, 0)))>,
Requires<[HasV4T]>;
let AddedComplexity = 20 in
def: Pat <(i64 (zextloadi8 (add (i32 IntRegs:$src1),
s11_0ExtPred:$offset))),
(i64 (COMBINE_Ir_V4 0, (LDriub_indexed IntRegs:$src1,
(i64 (COMBINE_Ir_V4 0, (L2_loadrub_io IntRegs:$src1,
s11_0ExtPred:$offset)))>,
Requires<[HasV4T]>;
// zext i1->i64
def: Pat <(i64 (zextloadi1 ADDRriS11_0:$src1)),
(i64 (COMBINE_Ir_V4 0, (LDriub ADDRriS11_0:$src1)))>,
(i64 (COMBINE_Ir_V4 0, (L2_loadrub_io AddrFI:$src1, 0)))>,
Requires<[HasV4T]>;
let AddedComplexity = 20 in
def: Pat <(i64 (zextloadi1 (add (i32 IntRegs:$src1),
s11_0ExtPred:$offset))),
(i64 (COMBINE_Ir_V4 0, (LDriub_indexed IntRegs:$src1,
(i64 (COMBINE_Ir_V4 0, (L2_loadrub_io IntRegs:$src1,
s11_0ExtPred:$offset)))>,
Requires<[HasV4T]>;

6
llvm/lib/Target/Hexagon/HexagonOperands.td
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@ -800,6 +800,12 @@ def u6_3ExtPred : PatLeaf<(i32 imm), [{
}
}]>;
// This complex pattern exists only to create a machine instruction operand
// of type "frame index". There doesn't seem to be a way to do that directly
// in the patterns.
def AddrFI : ComplexPattern<i32, 1, "SelectAddrFI", [frameindex], []>;
// Addressing modes.
def ADDRrr : ComplexPattern<i32, 2, "SelectADDRrr", [], []>;

2
llvm/lib/Target/Hexagon/HexagonRegisterInfo.cpp
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@ -164,7 +164,7 @@ void HexagonRegisterInfo::eliminateFrameIndex(MachineBasicBlock::iterator II,
(MI.getOpcode() == Hexagon::LDrih) ||
(MI.getOpcode() == Hexagon::LDriuh) ||
(MI.getOpcode() == Hexagon::LDrib) ||
(MI.getOpcode() == Hexagon::LDriub) ||
(MI.getOpcode() == Hexagon::L2_loadrub_io) ||
(MI.getOpcode() == Hexagon::LDriw_f) ||
(MI.getOpcode() == Hexagon::LDrid_f)) {
unsigned dstReg = (MI.getOpcode() == Hexagon::LDrid) ?

14
llvm/test/MC/Disassembler/Hexagon/ld.txt Normal file
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@ -0,0 +1,14 @@
# RUN: llvm-mc --triple hexagon -disassemble < %s | FileCheck %s
0xf1 0xc3 0x35 0x91
# CHECK: r17 = memub(r21 + #31)
0xf1 0xdb 0x35 0x41
# CHECK: if (p3) r17 = memub(r21 + #31)
0x03 0x40 0x45 0x85 0xf1 0xdb 0x35 0x43
# CHECK: p3 = r5
# CHECK-NEXT: if (p3.new) r17 = memub(r21 + #31)
0xf1 0xdb 0x35 0x45
# CHECK: if (!p3) r17 = memub(r21 + #31)
0x03 0x40 0x45 0x85 0xf1 0xdb 0x35 0x47
# CHECK: p3 = r5
# CHECK-NEXT: if (!p3.new) r17 = memub(r21 + #31)