/// \brief Returns true if the instruction is a hardware loop instruction.
static bool isHardwareLoop(const MachineInstr *MI) {
- return MI->getOpcode() == Hexagon::LOOP0_r ||
- MI->getOpcode() == Hexagon::LOOP0_i;
+ return MI->getOpcode() == Hexagon::J2_loop0r ||
+ MI->getOpcode() == Hexagon::J2_loop0i;
}
FunctionPass *llvm::createHexagonHardwareLoops() {
BuildMI(*Preheader, InsertPos, DL, TII->get(TargetOpcode::COPY), CountReg)
.addReg(TripCount->getReg(), 0, TripCount->getSubReg());
// Add the Loop instruction to the beginning of the loop.
- BuildMI(*Preheader, InsertPos, DL, TII->get(Hexagon::LOOP0_r))
+ BuildMI(*Preheader, InsertPos, DL, TII->get(Hexagon::J2_loop0r))
.addMBB(LoopStart)
.addReg(CountReg);
} else {
// if the immediate fits in the instructions. Otherwise, we need to
// create a new virtual register.
int64_t CountImm = TripCount->getImm();
- if (!TII->isValidOffset(Hexagon::LOOP0_i, CountImm)) {
+ if (!TII->isValidOffset(Hexagon::J2_loop0i, CountImm)) {
unsigned CountReg = MRI->createVirtualRegister(&Hexagon::IntRegsRegClass);
BuildMI(*Preheader, InsertPos, DL, TII->get(Hexagon::A2_tfrsi), CountReg)
.addImm(CountImm);
- BuildMI(*Preheader, InsertPos, DL, TII->get(Hexagon::LOOP0_r))
+ BuildMI(*Preheader, InsertPos, DL, TII->get(Hexagon::J2_loop0r))
.addMBB(LoopStart).addReg(CountReg);
} else
- BuildMI(*Preheader, InsertPos, DL, TII->get(Hexagon::LOOP0_i))
+ BuildMI(*Preheader, InsertPos, DL, TII->get(Hexagon::J2_loop0i))
.addMBB(LoopStart).addImm(CountImm);
}
//===----------------------------------------------------------------------===//
// SYSTEM/SUPER -
//===----------------------------------------------------------------------===//
+//===----------------------------------------------------------------------===//
+// CRUSER - Type.
+//===----------------------------------------------------------------------===//
+// HW loop
+let isExtendable = 1, isExtentSigned = 1, opExtentBits = 9, opExtentAlign = 2,
+ opExtendable = 0, hasSideEffects = 0 in
+class LOOP_iBase<string mnemonic, Operand brOp, bit mustExtend = 0>
+ : CRInst<(outs), (ins brOp:$offset, u10Imm:$src2),
+ #mnemonic#"($offset, #$src2)",
+ [], "" , CR_tc_3x_SLOT3> {
+ bits<9> offset;
+ bits<10> src2;
+
+ let IClass = 0b0110;
+
+ let Inst{27-22} = 0b100100;
+ let Inst{21} = !if (!eq(mnemonic, "loop0"), 0b0, 0b1);
+ let Inst{20-16} = src2{9-5};
+ let Inst{12-8} = offset{8-4};
+ let Inst{7-5} = src2{4-2};
+ let Inst{4-3} = offset{3-2};
+ let Inst{1-0} = src2{1-0};
+}
+
+let isExtendable = 1, isExtentSigned = 1, opExtentBits = 9, opExtentAlign = 2,
+ opExtendable = 0, hasSideEffects = 0 in
+class LOOP_rBase<string mnemonic, Operand brOp, bit mustExtend = 0>
+ : CRInst<(outs), (ins brOp:$offset, IntRegs:$src2),
+ #mnemonic#"($offset, $src2)",
+ [], "" ,CR_tc_3x_SLOT3> {
+ bits<9> offset;
+ bits<5> src2;
+
+ let IClass = 0b0110;
+
+ let Inst{27-22} = 0b000000;
+ let Inst{21} = !if (!eq(mnemonic, "loop0"), 0b0, 0b1);
+ let Inst{20-16} = src2;
+ let Inst{12-8} = offset{8-4};
+ let Inst{4-3} = offset{3-2};
+ }
+
+multiclass LOOP_ri<string mnemonic> {
+ def i : LOOP_iBase<mnemonic, brtarget>;
+ def r : LOOP_rBase<mnemonic, brtarget>;
+}
+
+
+let Defs = [SA0, LC0, USR], isCodeGenOnly = 0 in
+defm J2_loop0 : LOOP_ri<"loop0">;
+
+// Interestingly only loop0's appear to set usr.lpcfg
+let Defs = [SA1, LC1], isCodeGenOnly = 0 in
+defm J2_loop1 : LOOP_ri<"loop1">;
+
+let isBranch = 1, isTerminator = 1, hasSideEffects = 0,
+ Defs = [PC, LC0], Uses = [SA0, LC0] in {
+def ENDLOOP0 : Endloop<(outs), (ins brtarget:$offset),
+ ":endloop0",
+ []>;
+}
+
+let isBranch = 1, isTerminator = 1, hasSideEffects = 0,
+ Defs = [PC, LC1], Uses = [SA1, LC1] in {
+def ENDLOOP1 : Endloop<(outs), (ins brtarget:$offset),
+ ":endloop1",
+ []>;
+}
+
+// Pipelined loop instructions, sp[123]loop0
+let Defs = [LC0, SA0, P3, USR], hasSideEffects = 0,
+ isExtentSigned = 1, isExtendable = 1, opExtentBits = 9, opExtentAlign = 2,
+ opExtendable = 0, isPredicateLate = 1 in
+class SPLOOP_iBase<string SP, bits<2> op>
+ : CRInst <(outs), (ins brtarget:$r7_2, u10Imm:$U10),
+ "p3 = sp"#SP#"loop0($r7_2, #$U10)" > {
+ bits<9> r7_2;
+ bits<10> U10;
+
+ let IClass = 0b0110;
+
+ let Inst{22-21} = op;
+ let Inst{27-23} = 0b10011;
+ let Inst{20-16} = U10{9-5};
+ let Inst{12-8} = r7_2{8-4};
+ let Inst{7-5} = U10{4-2};
+ let Inst{4-3} = r7_2{3-2};
+ let Inst{1-0} = U10{1-0};
+ }
+
+let Defs = [LC0, SA0, P3, USR], hasSideEffects = 0,
+ isExtentSigned = 1, isExtendable = 1, opExtentBits = 9, opExtentAlign = 2,
+ opExtendable = 0, isPredicateLate = 1 in
+class SPLOOP_rBase<string SP, bits<2> op>
+ : CRInst <(outs), (ins brtarget:$r7_2, IntRegs:$Rs),
+ "p3 = sp"#SP#"loop0($r7_2, $Rs)" > {
+ bits<9> r7_2;
+ bits<5> Rs;
+
+ let IClass = 0b0110;
+
+ let Inst{22-21} = op;
+ let Inst{27-23} = 0b00001;
+ let Inst{20-16} = Rs;
+ let Inst{12-8} = r7_2{8-4};
+ let Inst{4-3} = r7_2{3-2};
+ }
+
+multiclass SPLOOP_ri<string mnemonic, bits<2> op> {
+ def i : SPLOOP_iBase<mnemonic, op>;
+ def r : SPLOOP_rBase<mnemonic, op>;
+}
+
+let isCodeGenOnly = 0 in {
+defm J2_ploop1s : SPLOOP_ri<"1", 0b01>;
+defm J2_ploop2s : SPLOOP_ri<"2", 0b10>;
+defm J2_ploop3s : SPLOOP_ri<"3", 0b11>;
+}
// TFRI64 - assembly mapped.
let isReMaterializable = 1 in
"$dst = add($src1)",
[(set (i32 IntRegs:$dst), ADDRri:$src1)]>;
-//
-// CR - Type.
-//
-let hasSideEffects = 0, Defs = [SA0, LC0] in {
-def LOOP0_i : CRInst<(outs), (ins brtarget:$offset, u10Imm:$src2),
- "loop0($offset, #$src2)",
- []>;
-}
-
-let hasSideEffects = 0, Defs = [SA0, LC0] in {
-def LOOP0_r : CRInst<(outs), (ins brtarget:$offset, IntRegs:$src2),
- "loop0($offset, $src2)",
- []>;
-}
-
-let isBranch = 1, isTerminator = 1, hasSideEffects = 0,
- Defs = [PC, LC0], Uses = [SA0, LC0] in {
-def ENDLOOP0 : Endloop<(outs), (ins brtarget:$offset),
- ":endloop0",
- []>;
-}
-
// Support for generating global address.
// Taken from X86InstrInfo.td.
def SDTHexagonCONST32 : SDTypeProfile<1, 1, [
def subreg_loreg : SubRegIndex<32>;
def subreg_hireg : SubRegIndex<32, 32>;
+ def subreg_overflow : SubRegIndex<1, 0>;
// Integer registers.
foreach i = 0-28 in {
def M0 : Rc<6, "m0">, DwarfRegNum<[71]>;
def M1 : Rc<7, "m1">, DwarfRegNum<[72]>;
+ def USR : Rc<8, "usr">, DwarfRegNum<[74]> {
+ let SubRegIndices = [subreg_overflow];
+ let SubRegs = [USR_OVF];
+ }
def PC : Rc<9, "pc">, DwarfRegNum<[32]>; // is the Dwarf number correct?
def GP : Rc<11, "gp">, DwarfRegNum<[33]>; // is the Dwarf number correct?
}
}
def CRRegs : RegisterClass<"Hexagon", [i32], 32,
- (add (sequence "LC%u", 0, 1),
- (sequence "SA%u", 0, 1),
- (sequence "M%u", 0, 1), PC, GP)> {
+ (add LC0, SA0, LC1, SA1,
+ M0, M1,
+ USR, USR_OVF, PC, GP)> {
let Size = 32;
}
R28, R31,
P0, P1, P2, P3,
M0, M1,
- LC0, LC1, SA0, SA1, USR_OVF];
+ LC0, LC1, SA0, SA1, USR, USR_OVF];
}
def PositiveHalfWord : PatLeaf<(i32 IntRegs:$a),
projects / oota-llvm.git / commitdiff