1 //===- Mips16InstrInfo.td - Target Description for Mips16 -*- tablegen -*-=//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file describes Mips16 instructions.
12 //===----------------------------------------------------------------------===//
17 def mem16 : Operand<i32> {
18 let PrintMethod = "printMemOperand";
19 let MIOperandInfo = (ops CPU16Regs, simm16);
20 let EncoderMethod = "getMemEncoding";
24 // Compare a register and immediate and place result in CC
27 // EXT-CCRR Instruction format
29 class FEXT_CCRXI16_ins<bits<5> _op, string asmstr,
31 FEXT_RI16<_op, (outs CPU16Regs:$cc), (ins CPU16Regs:$rx, simm16:$imm),
32 !strconcat(asmstr, "\t$rx, $imm\n\tmove\t$cc, $$t8"), [], itin> {
37 // EXT-I instruction format
39 class FEXT_I16_ins<bits<5> eop, string asmstr, InstrItinClass itin> :
40 FEXT_I16<eop, (outs), (ins brtarget:$imm16),
41 !strconcat(asmstr, "\t$imm16"),[], itin>;
44 // EXT-I8 instruction format
47 class FEXT_I816_ins_base<bits<3> _func, string asmstr,
48 string asmstr2, InstrItinClass itin>:
49 FEXT_I816<_func, (outs), (ins uimm16:$imm), !strconcat(asmstr, asmstr2),
52 class FEXT_I816_ins<bits<3> _func, string asmstr,
54 FEXT_I816_ins_base<_func, asmstr, "\t$imm", itin>;
57 // Assembler formats in alphabetical order.
58 // Natural and pseudos are mixed together.
60 // Compare two registers and place result in CC
63 // CC-RR Instruction format
65 class FCCRR16_ins<bits<5> f, string asmstr, InstrItinClass itin> :
66 FRR16<f, (outs CPU16Regs:$cc), (ins CPU16Regs:$rx, CPU16Regs:$ry),
67 !strconcat(asmstr, "\t$rx, $ry\n\tmove\t$cc, $$t8"), [], itin> {
72 // EXT-RI instruction format
75 class FEXT_RI16_ins_base<bits<5> _op, string asmstr, string asmstr2,
77 FEXT_RI16<_op, (outs CPU16Regs:$rx), (ins simm16:$imm),
78 !strconcat(asmstr, asmstr2), [], itin>;
80 class FEXT_RI16_ins<bits<5> _op, string asmstr,
82 FEXT_RI16_ins_base<_op, asmstr, "\t$rx, $imm", itin>;
84 class FEXT_RI16_PC_ins<bits<5> _op, string asmstr, InstrItinClass itin>:
85 FEXT_RI16_ins_base<_op, asmstr, "\t$rx, $$pc, $imm", itin>;
87 class FEXT_RI16_B_ins<bits<5> _op, string asmstr,
89 FEXT_RI16<_op, (outs), (ins CPU16Regs:$rx, brtarget:$imm),
90 !strconcat(asmstr, "\t$rx, $imm"), [], itin>;
92 class FEXT_2RI16_ins<bits<5> _op, string asmstr,
94 FEXT_RI16<_op, (outs CPU16Regs:$rx), (ins CPU16Regs:$rx_, simm16:$imm),
95 !strconcat(asmstr, "\t$rx, $imm"), [], itin> {
96 let Constraints = "$rx_ = $rx";
100 // this has an explicit sp argument that we ignore to work around a problem
102 class FEXT_RI16_SP_explicit_ins<bits<5> _op, string asmstr,
103 InstrItinClass itin>:
104 FEXT_RI16<_op, (outs CPU16Regs:$rx), (ins CPUSPReg:$ry, simm16:$imm),
105 !strconcat(asmstr, "\t$rx, $imm ( $ry ); "), [], itin>;
108 // EXT-RRI instruction format
111 class FEXT_RRI16_mem_ins<bits<5> op, string asmstr, Operand MemOpnd,
112 InstrItinClass itin>:
113 FEXT_RRI16<op, (outs CPU16Regs:$ry), (ins MemOpnd:$addr),
114 !strconcat(asmstr, "\t$ry, $addr"), [], itin>;
116 class FEXT_RRI16_mem2_ins<bits<5> op, string asmstr, Operand MemOpnd,
117 InstrItinClass itin>:
118 FEXT_RRI16<op, (outs ), (ins CPU16Regs:$ry, MemOpnd:$addr),
119 !strconcat(asmstr, "\t$ry, $addr"), [], itin>;
122 // EXT-SHIFT instruction format
124 class FEXT_SHIFT16_ins<bits<2> _f, string asmstr, InstrItinClass itin>:
125 FEXT_SHIFT16<_f, (outs CPU16Regs:$rx), (ins CPU16Regs:$ry, shamt:$sa),
126 !strconcat(asmstr, "\t$rx, $ry, $sa"), [], itin>;
131 class FEXT_T8I816_ins<bits<3> _func, string asmstr, string asmstr2,
132 InstrItinClass itin>:
133 FEXT_I816<_func, (outs),
134 (ins CPU16Regs:$rx, CPU16Regs:$ry, brtarget:$imm),
135 !strconcat(asmstr2, !strconcat("\t$rx, $ry\n\t",
136 !strconcat(asmstr, "\t$imm"))),[], itin> {
143 class FEXT_T8I8I16_ins<bits<3> _func, string asmstr, string asmstr2,
144 InstrItinClass itin>:
145 FEXT_I816<_func, (outs),
146 (ins CPU16Regs:$rx, simm16:$imm, brtarget:$targ),
147 !strconcat(asmstr2, !strconcat("\t$rx, $imm\n\t",
148 !strconcat(asmstr, "\t$targ"))), [], itin> {
155 // I8_MOVR32 instruction format (used only by the MOVR32 instructio
157 class FI8_MOVR3216_ins<string asmstr, InstrItinClass itin>:
158 FI8_MOVR3216<(outs CPU16Regs:$rz), (ins CPURegs:$r32),
159 !strconcat(asmstr, "\t$rz, $r32"), [], itin>;
162 // I8_MOV32R instruction format (used only by MOV32R instruction)
165 class FI8_MOV32R16_ins<string asmstr, InstrItinClass itin>:
166 FI8_MOV32R16<(outs CPURegs:$r32), (ins CPU16Regs:$rz),
167 !strconcat(asmstr, "\t$r32, $rz"), [], itin>;
170 // This are pseudo formats for multiply
171 // This first one can be changed to non pseudo now.
175 class FMULT16_ins<string asmstr, InstrItinClass itin> :
176 MipsPseudo16<(outs), (ins CPU16Regs:$rx, CPU16Regs:$ry),
177 !strconcat(asmstr, "\t$rx, $ry"), []>;
182 class FMULT16_LO_ins<string asmstr, InstrItinClass itin> :
183 MipsPseudo16<(outs CPU16Regs:$rz), (ins CPU16Regs:$rx, CPU16Regs:$ry),
184 !strconcat(asmstr, "\t$rx, $ry\n\tmflo\t$rz"), []> {
189 // RR-type instruction format
192 class FRR16_ins<bits<5> f, string asmstr, InstrItinClass itin> :
193 FRR16<f, (outs CPU16Regs:$rx), (ins CPU16Regs:$ry),
194 !strconcat(asmstr, "\t$rx, $ry"), [], itin> {
197 class FRRTR16_ins<bits<5> f, string asmstr, InstrItinClass itin> :
198 FRR16<f, (outs CPU16Regs:$rz), (ins CPU16Regs:$rx, CPU16Regs:$ry),
199 !strconcat(asmstr, "\t$rx, $ry\n\tmove\t$rz, $$t8"), [], itin> ;
202 // maybe refactor but need a $zero as a dummy first parameter
204 class FRR16_div_ins<bits<5> f, string asmstr, InstrItinClass itin> :
205 FRR16<f, (outs ), (ins CPU16Regs:$rx, CPU16Regs:$ry),
206 !strconcat(asmstr, "\t$$zero, $rx, $ry"), [], itin> ;
208 class FRR16_M_ins<bits<5> f, string asmstr,
209 InstrItinClass itin> :
210 FRR16<f, (outs CPU16Regs:$rx), (ins),
211 !strconcat(asmstr, "\t$rx"), [], itin>;
213 class FRxRxRy16_ins<bits<5> f, string asmstr,
214 InstrItinClass itin> :
215 FRR16<f, (outs CPU16Regs:$rz), (ins CPU16Regs:$rx, CPU16Regs:$ry),
216 !strconcat(asmstr, "\t$rz, $ry"),
218 let Constraints = "$rx = $rz";
222 class FRR16_JALRC_RA_only_ins<bits<1> nd_, bits<1> l_,
223 string asmstr, InstrItinClass itin>:
224 FRR16_JALRC<nd_, l_, 1, (outs), (ins), !strconcat(asmstr, "\t $$ra"),
228 // RRR-type instruction format
231 class FRRR16_ins<bits<2> _f, string asmstr, InstrItinClass itin> :
232 FRRR16<_f, (outs CPU16Regs:$rz), (ins CPU16Regs:$rx, CPU16Regs:$ry),
233 !strconcat(asmstr, "\t$rz, $rx, $ry"), [], itin>;
236 // These Sel patterns support the generation of conditional move
237 // pseudo instructions.
239 // The nomenclature uses the components making up the pseudo and may
240 // be a bit counter intuitive when compared with the end result we seek.
241 // For example using a bqez in the example directly below results in the
242 // conditional move being done if the tested register is not zero.
243 // I considered in easier to check by keeping the pseudo consistent with
244 // it's components but it could have been done differently.
246 // The simplest case is when can test and operand directly and do the
247 // conditional move based on a simple mips16 conditional
248 // branch instruction.
250 // if $op == beqz or bnez:
255 // if $op == beqz, then if $rt != 0, then the conditional assignment
256 // $rd = $rs is done.
258 // if $op == bnez, then if $rt == 0, then the conditional assignment
259 // $rd = $rs is done.
261 // So this pseudo class only has one operand, i.e. op
263 class Sel<bits<5> f1, string op, InstrItinClass itin>:
264 MipsInst16_32<(outs CPU16Regs:$rd_), (ins CPU16Regs:$rd, CPU16Regs:$rs,
266 !strconcat(op, "\t$rt, .+4\n\t\n\tmove $rd, $rs"), [], itin,
269 let Constraints = "$rd = $rd_";
273 // The next two instruction classes allow for an operand which tests
274 // two operands and returns a value in register T8 and
275 //then does a conditional branch based on the value of T8
278 // op2 can be cmpi or slti/sltiu
279 // op1 can bteqz or btnez
280 // the operands for op2 are a register and a signed constant
282 // $op2 $t, $imm ;test register t and branch conditionally
283 // $op1 .+4 ;op1 is a conditional branch
287 class SeliT<bits<5> f1, string op1, bits<5> f2, string op2,
288 InstrItinClass itin>:
289 MipsInst16_32<(outs CPU16Regs:$rd_), (ins CPU16Regs:$rd, CPU16Regs:$rs,
290 CPU16Regs:$rl, simm16:$imm),
292 !strconcat("\t$rl, $imm\n\t",
293 !strconcat(op1, "\t.+4\n\tmove $rd, $rs"))), [], itin,
296 let Constraints = "$rd = $rd_";
300 // op2 can be cmp or slt/sltu
301 // op1 can be bteqz or btnez
302 // the operands for op2 are two registers
303 // op1 is a conditional branch
306 // $op2 $rl, $rr ;test registers rl,rr
307 // $op1 .+4 ;op2 is a conditional branch
311 class SelT<bits<5> f1, string op1, bits<5> f2, string op2,
312 InstrItinClass itin>:
313 MipsInst16_32<(outs CPU16Regs:$rd_), (ins CPU16Regs:$rd, CPU16Regs:$rs,
314 CPU16Regs:$rl, CPU16Regs:$rr),
316 !strconcat("\t$rl, $rr\n\t",
317 !strconcat(op1, "\t.+4\n\tmove $rd, $rs"))), [], itin,
320 let Constraints = "$rd = $rd_";
325 // Some general instruction class info
329 class ArithLogic16Defs<bit isCom=0> {
331 bit isCommutable = isCom;
332 bit isReMaterializable = 1;
333 bit neverHasSideEffects = 1;
338 bit isTerminator = 1;
344 bit isTerminator = 1;
356 // Format: ADDIU rx, immediate MIPS16e
357 // Purpose: Add Immediate Unsigned Word (2-Operand, Extended)
358 // To add a constant to a 32-bit integer.
360 def AddiuRxImmX16: FEXT_RI16_ins<0b01001, "addiu", IIAlu>;
362 def AddiuRxRxImmX16: FEXT_2RI16_ins<0b01001, "addiu", IIAlu>,
367 // Format: ADDIU rx, pc, immediate MIPS16e
368 // Purpose: Add Immediate Unsigned Word (3-Operand, PC-Relative, Extended)
369 // To add a constant to the program counter.
371 def AddiuRxPcImmX16: FEXT_RI16_PC_ins<0b00001, "addiu", IIAlu>;
373 // Format: ADDU rz, rx, ry MIPS16e
374 // Purpose: Add Unsigned Word (3-Operand)
375 // To add 32-bit integers.
378 def AdduRxRyRz16: FRRR16_ins<01, "addu", IIAlu>, ArithLogic16Defs<1>;
381 // Format: AND rx, ry MIPS16e
383 // To do a bitwise logical AND.
385 def AndRxRxRy16: FRxRxRy16_ins<0b01100, "and", IIAlu>, ArithLogic16Defs<1>;
389 // Format: BEQZ rx, offset MIPS16e
390 // Purpose: Branch on Equal to Zero (Extended)
391 // To test a GPR then do a PC-relative conditional branch.
393 def BeqzRxImmX16: FEXT_RI16_B_ins<0b00100, "beqz", IIAlu>, cbranch16;
395 // Format: B offset MIPS16e
396 // Purpose: Unconditional Branch
397 // To do an unconditional PC-relative branch.
399 def BimmX16: FEXT_I16_ins<0b00010, "b", IIAlu>, branch16;
402 // Format: BNEZ rx, offset MIPS16e
403 // Purpose: Branch on Not Equal to Zero (Extended)
404 // To test a GPR then do a PC-relative conditional branch.
406 def BnezRxImmX16: FEXT_RI16_B_ins<0b00101, "bnez", IIAlu>, cbranch16;
409 // Format: BTEQZ offset MIPS16e
410 // Purpose: Branch on T Equal to Zero (Extended)
411 // To test special register T then do a PC-relative conditional branch.
413 def BteqzX16: FEXT_I816_ins<0b000, "bteqz", IIAlu>, cbranch16;
415 def BteqzT8CmpX16: FEXT_T8I816_ins<0b000, "bteqz", "cmp", IIAlu>, cbranch16;
417 def BteqzT8CmpiX16: FEXT_T8I8I16_ins<0b000, "bteqz", "cmpi", IIAlu>,
420 def BteqzT8SltX16: FEXT_T8I816_ins<0b000, "bteqz", "slt", IIAlu>, cbranch16;
422 def BteqzT8SltuX16: FEXT_T8I816_ins<0b000, "bteqz", "sltu", IIAlu>, cbranch16;
424 def BteqzT8SltiX16: FEXT_T8I8I16_ins<0b000, "bteqz", "slti", IIAlu>, cbranch16;
426 def BteqzT8SltiuX16: FEXT_T8I8I16_ins<0b000, "bteqz", "sltiu", IIAlu>,
430 // Format: BTNEZ offset MIPS16e
431 // Purpose: Branch on T Not Equal to Zero (Extended)
432 // To test special register T then do a PC-relative conditional branch.
434 def BtnezX16: FEXT_I816_ins<0b001, "btnez", IIAlu> ,cbranch16;
436 def BtnezT8CmpX16: FEXT_T8I816_ins<0b000, "btnez", "cmp", IIAlu>, cbranch16;
438 def BtnezT8CmpiX16: FEXT_T8I8I16_ins<0b000, "btnez", "cmpi", IIAlu>, cbranch16;
440 def BtnezT8SltX16: FEXT_T8I816_ins<0b000, "btnez", "slt", IIAlu>, cbranch16;
442 def BtnezT8SltuX16: FEXT_T8I816_ins<0b000, "btnez", "sltu", IIAlu>, cbranch16;
444 def BtnezT8SltiX16: FEXT_T8I8I16_ins<0b000, "btnez", "slti", IIAlu>, cbranch16;
446 def BtnezT8SltiuX16: FEXT_T8I8I16_ins<0b000, "btnez", "sltiu", IIAlu>,
450 // Format: DIV rx, ry MIPS16e
451 // Purpose: Divide Word
452 // To divide 32-bit signed integers.
454 def DivRxRy16: FRR16_div_ins<0b11010, "div", IIAlu> {
459 // Format: DIVU rx, ry MIPS16e
460 // Purpose: Divide Unsigned Word
461 // To divide 32-bit unsigned integers.
463 def DivuRxRy16: FRR16_div_ins<0b11011, "divu", IIAlu> {
469 // Format: JR ra MIPS16e
470 // Purpose: Jump Register Through Register ra
471 // To execute a branch to the instruction address in the return
475 def JrRa16: FRR16_JALRC_RA_only_ins<0, 0, "jr", IIAlu>;
478 // Format: LB ry, offset(rx) MIPS16e
479 // Purpose: Load Byte (Extended)
480 // To load a byte from memory as a signed value.
482 def LbRxRyOffMemX16: FEXT_RRI16_mem_ins<0b10011, "lb", mem16, IILoad>, MayLoad;
485 // Format: LBU ry, offset(rx) MIPS16e
486 // Purpose: Load Byte Unsigned (Extended)
487 // To load a byte from memory as a unsigned value.
489 def LbuRxRyOffMemX16:
490 FEXT_RRI16_mem_ins<0b10100, "lbu", mem16, IILoad>, MayLoad;
493 // Format: LH ry, offset(rx) MIPS16e
494 // Purpose: Load Halfword signed (Extended)
495 // To load a halfword from memory as a signed value.
497 def LhRxRyOffMemX16: FEXT_RRI16_mem_ins<0b10100, "lh", mem16, IILoad>, MayLoad;
500 // Format: LHU ry, offset(rx) MIPS16e
501 // Purpose: Load Halfword unsigned (Extended)
502 // To load a halfword from memory as an unsigned value.
504 def LhuRxRyOffMemX16:
505 FEXT_RRI16_mem_ins<0b10100, "lhu", mem16, IILoad>, MayLoad;
508 // Format: LI rx, immediate MIPS16e
509 // Purpose: Load Immediate (Extended)
510 // To load a constant into a GPR.
512 def LiRxImmX16: FEXT_RI16_ins<0b01101, "li", IIAlu>;
515 // Format: LW ry, offset(rx) MIPS16e
516 // Purpose: Load Word (Extended)
517 // To load a word from memory as a signed value.
519 def LwRxRyOffMemX16: FEXT_RRI16_mem_ins<0b10011, "lw", mem16, IILoad>, MayLoad;
521 // Format: LW rx, offset(sp) MIPS16e
522 // Purpose: Load Word (SP-Relative, Extended)
523 // To load an SP-relative word from memory as a signed value.
525 def LwRxSpImmX16: FEXT_RI16_SP_explicit_ins<0b10110, "lw", IILoad>, MayLoad;
528 // Format: MOVE r32, rz MIPS16e
530 // To move the contents of a GPR to a GPR.
532 def Move32R16: FI8_MOV32R16_ins<"move", IIAlu>;
535 // Format: MOVE ry, r32 MIPS16e
537 // To move the contents of a GPR to a GPR.
539 def MoveR3216: FI8_MOVR3216_ins<"move", IIAlu>;
542 // Format: MFHI rx MIPS16e
543 // Purpose: Move From HI Register
544 // To copy the special purpose HI register to a GPR.
546 def Mfhi16: FRR16_M_ins<0b10000, "mfhi", IIAlu> {
548 let neverHasSideEffects = 1;
552 // Format: MFLO rx MIPS16e
553 // Purpose: Move From LO Register
554 // To copy the special purpose LO register to a GPR.
556 def Mflo16: FRR16_M_ins<0b10010, "mflo", IIAlu> {
558 let neverHasSideEffects = 1;
562 // Pseudo Instruction for mult
564 def MultRxRy16: FMULT16_ins<"mult", IIAlu> {
565 let isCommutable = 1;
566 let neverHasSideEffects = 1;
570 def MultuRxRy16: FMULT16_ins<"multu", IIAlu> {
571 let isCommutable = 1;
572 let neverHasSideEffects = 1;
577 // Format: MULT rx, ry MIPS16e
578 // Purpose: Multiply Word
579 // To multiply 32-bit signed integers.
581 def MultRxRyRz16: FMULT16_LO_ins<"mult", IIAlu> {
582 let isCommutable = 1;
583 let neverHasSideEffects = 1;
588 // Format: MULTU rx, ry MIPS16e
589 // Purpose: Multiply Unsigned Word
590 // To multiply 32-bit unsigned integers.
592 def MultuRxRyRz16: FMULT16_LO_ins<"multu", IIAlu> {
593 let isCommutable = 1;
594 let neverHasSideEffects = 1;
599 // Format: NEG rx, ry MIPS16e
601 // To negate an integer value.
603 def NegRxRy16: FRR16_ins<0b11101, "neg", IIAlu>;
606 // Format: NOT rx, ry MIPS16e
608 // To complement an integer value
610 def NotRxRy16: FRR16_ins<0b01111, "not", IIAlu>;
613 // Format: OR rx, ry MIPS16e
615 // To do a bitwise logical OR.
617 def OrRxRxRy16: FRxRxRy16_ins<0b01101, "or", IIAlu>, ArithLogic16Defs<1>;
620 // Format: RESTORE {ra,}{s0/s1/s0-1,}{framesize}
621 // (All args are optional) MIPS16e
622 // Purpose: Restore Registers and Deallocate Stack Frame
623 // To deallocate a stack frame before exit from a subroutine,
624 // restoring return address and static registers, and adjusting
628 // fixed form for restoring RA and the frame
629 // for direct object emitter, encoding needs to be adjusted for the
632 let ra=1, s=0,s0=1,s1=1 in
634 FI8_SVRS16<0b1, (outs), (ins uimm16:$frame_size),
635 "restore \t$$ra, $$s0, $$s1, $frame_size", [], IILoad >, MayLoad {
636 let isCodeGenOnly = 1;
640 // Format: SAVE {ra,}{s0/s1/s0-1,}{framesize} (All arguments are optional)
642 // Purpose: Save Registers and Set Up Stack Frame
643 // To set up a stack frame on entry to a subroutine,
644 // saving return address and static registers, and adjusting stack
646 let ra=1, s=1,s0=1,s1=1 in
648 FI8_SVRS16<0b1, (outs), (ins uimm16:$frame_size),
649 "save \t$$ra, $$s0, $$s1, $frame_size", [], IIStore >, MayStore {
650 let isCodeGenOnly = 1;
653 // Format: SB ry, offset(rx) MIPS16e
654 // Purpose: Store Byte (Extended)
655 // To store a byte to memory.
658 FEXT_RRI16_mem2_ins<0b11000, "sb", mem16, IIStore>, MayStore;
661 // The Sel(T) instructions are pseudos
662 // T means that they use T8 implicitly.
665 // Format: SelBeqZ rd, rs, rt
666 // Purpose: if rt==0, do nothing
669 def SelBeqZ: Sel<0b00100, "beqz", IIAlu>;
672 // Format: SelTBteqZCmp rd, rs, rl, rr
673 // Purpose: b = Cmp rl, rr.
674 // If b==0 then do nothing.
675 // if b!=0 then rd = rs
677 def SelTBteqZCmp: SelT<0b000, "bteqz", 0b01010, "cmp", IIAlu>;
680 // Format: SelTBteqZCmpi rd, rs, rl, rr
681 // Purpose: b = Cmpi rl, imm.
682 // If b==0 then do nothing.
683 // if b!=0 then rd = rs
685 def SelTBteqZCmpi: SeliT<0b000, "bteqz", 0b01110, "cmpi", IIAlu>;
688 // Format: SelTBteqZSlt rd, rs, rl, rr
689 // Purpose: b = Slt rl, rr.
690 // If b==0 then do nothing.
691 // if b!=0 then rd = rs
693 def SelTBteqZSlt: SelT<0b000, "bteqz", 0b00010, "slt", IIAlu>;
696 // Format: SelTBteqZSlti rd, rs, rl, rr
697 // Purpose: b = Slti rl, imm.
698 // If b==0 then do nothing.
699 // if b!=0 then rd = rs
701 def SelTBteqZSlti: SeliT<0b000, "bteqz", 0b01010, "slti", IIAlu>;
704 // Format: SelTBteqZSltu rd, rs, rl, rr
705 // Purpose: b = Sltu rl, rr.
706 // If b==0 then do nothing.
707 // if b!=0 then rd = rs
709 def SelTBteqZSltu: SelT<0b000, "bteqz", 0b00011, "sltu", IIAlu>;
712 // Format: SelTBteqZSltiu rd, rs, rl, rr
713 // Purpose: b = Sltiu rl, imm.
714 // If b==0 then do nothing.
715 // if b!=0 then rd = rs
717 def SelTBteqZSltiu: SeliT<0b000, "bteqz", 0b01011, "sltiu", IIAlu>;
720 // Format: SelBnez rd, rs, rt
721 // Purpose: if rt!=0, do nothing
724 def SelBneZ: Sel<0b00101, "bnez", IIAlu>;
727 // Format: SelTBtneZCmp rd, rs, rl, rr
728 // Purpose: b = Cmp rl, rr.
729 // If b!=0 then do nothing.
730 // if b0=0 then rd = rs
732 def SelTBtneZCmp: SelT<0b001, "btnez", 0b01010, "cmp", IIAlu>;
735 // Format: SelTBtnezCmpi rd, rs, rl, rr
736 // Purpose: b = Cmpi rl, imm.
737 // If b!=0 then do nothing.
738 // if b==0 then rd = rs
740 def SelTBtneZCmpi: SeliT<0b000, "btnez", 0b01110, "cmpi", IIAlu>;
743 // Format: SelTBtneZSlt rd, rs, rl, rr
744 // Purpose: b = Slt rl, rr.
745 // If b!=0 then do nothing.
746 // if b==0 then rd = rs
748 def SelTBtneZSlt: SelT<0b001, "btnez", 0b00010, "slt", IIAlu>;
751 // Format: SelTBtneZSlti rd, rs, rl, rr
752 // Purpose: b = Slti rl, imm.
753 // If b!=0 then do nothing.
754 // if b==0 then rd = rs
756 def SelTBtneZSlti: SeliT<0b001, "btnez", 0b01010, "slti", IIAlu>;
759 // Format: SelTBtneZSltu rd, rs, rl, rr
760 // Purpose: b = Sltu rl, rr.
761 // If b!=0 then do nothing.
762 // if b==0 then rd = rs
764 def SelTBtneZSltu: SelT<0b001, "btnez", 0b00011, "sltu", IIAlu>;
767 // Format: SelTBtneZSltiu rd, rs, rl, rr
768 // Purpose: b = Slti rl, imm.
769 // If b!=0 then do nothing.
770 // if b==0 then rd = rs
772 def SelTBtneZSltiu: SeliT<0b001, "btnez", 0b01011, "sltiu", IIAlu>;
775 // Format: SH ry, offset(rx) MIPS16e
776 // Purpose: Store Halfword (Extended)
777 // To store a halfword to memory.
780 FEXT_RRI16_mem2_ins<0b11001, "sh", mem16, IIStore>, MayStore;
783 // Format: SLL rx, ry, sa MIPS16e
784 // Purpose: Shift Word Left Logical (Extended)
785 // To execute a left-shift of a word by a fixed number of bits—0 to 31 bits.
787 def SllX16: FEXT_SHIFT16_ins<0b00, "sll", IIAlu>;
790 // Format: SLLV ry, rx MIPS16e
791 // Purpose: Shift Word Left Logical Variable
792 // To execute a left-shift of a word by a variable number of bits.
794 def SllvRxRy16 : FRxRxRy16_ins<0b00100, "sllv", IIAlu>;
797 // Format: SLTI rx, immediate MIPS16e
798 // Purpose: Set on Less Than Immediate (Extended)
799 // To record the result of a less-than comparison with a constant.
801 def SltiCCRxImmX16: FEXT_CCRXI16_ins<0b01010, "slti", IIAlu>;
804 // Format: SLTIU rx, immediate MIPS16e
805 // Purpose: Set on Less Than Immediate Unsigned (Extended)
806 // To record the result of a less-than comparison with a constant.
808 def SltiuCCRxImmX16: FEXT_CCRXI16_ins<0b01011, "sltiu", IIAlu>;
811 // Format: SLT rx, ry MIPS16e
812 // Purpose: Set on Less Than
813 // To record the result of a less-than comparison.
815 def SltRxRy16: FRR16_ins<0b00010, "slt", IIAlu>;
817 def SltCCRxRy16: FCCRR16_ins<0b00010, "slt", IIAlu>;
819 // Format: SLTU rx, ry MIPS16e
820 // Purpose: Set on Less Than Unsigned
821 // To record the result of an unsigned less-than comparison.
823 def SltuRxRyRz16: FRRTR16_ins<0b00011, "sltu", IIAlu> {
828 def SltuCCRxRy16: FCCRR16_ins<0b00011, "sltu", IIAlu>;
830 // Format: SRAV ry, rx MIPS16e
831 // Purpose: Shift Word Right Arithmetic Variable
832 // To execute an arithmetic right-shift of a word by a variable
835 def SravRxRy16: FRxRxRy16_ins<0b00111, "srav", IIAlu>;
839 // Format: SRA rx, ry, sa MIPS16e
840 // Purpose: Shift Word Right Arithmetic (Extended)
841 // To execute an arithmetic right-shift of a word by a fixed
842 // number of bits—1 to 8 bits.
844 def SraX16: FEXT_SHIFT16_ins<0b11, "sra", IIAlu>;
848 // Format: SRLV ry, rx MIPS16e
849 // Purpose: Shift Word Right Logical Variable
850 // To execute a logical right-shift of a word by a variable
853 def SrlvRxRy16: FRxRxRy16_ins<0b00110, "srlv", IIAlu>;
857 // Format: SRL rx, ry, sa MIPS16e
858 // Purpose: Shift Word Right Logical (Extended)
859 // To execute a logical right-shift of a word by a fixed
860 // number of bits—1 to 31 bits.
862 def SrlX16: FEXT_SHIFT16_ins<0b10, "srl", IIAlu>;
865 // Format: SUBU rz, rx, ry MIPS16e
866 // Purpose: Subtract Unsigned Word
867 // To subtract 32-bit integers
869 def SubuRxRyRz16: FRRR16_ins<0b11, "subu", IIAlu>, ArithLogic16Defs<0>;
872 // Format: SW ry, offset(rx) MIPS16e
873 // Purpose: Store Word (Extended)
874 // To store a word to memory.
877 FEXT_RRI16_mem2_ins<0b11011, "sw", mem16, IIStore>, MayStore;
880 // Format: SW rx, offset(sp) MIPS16e
881 // Purpose: Store Word rx (SP-Relative)
882 // To store an SP-relative word to memory.
884 def SwRxSpImmX16: FEXT_RI16_SP_explicit_ins<0b11010, "sw", IIStore>, MayStore;
888 // Format: XOR rx, ry MIPS16e
890 // To do a bitwise logical XOR.
892 def XorRxRxRy16: FRxRxRy16_ins<0b01110, "xor", IIAlu>, ArithLogic16Defs<1>;
894 class Mips16Pat<dag pattern, dag result> : Pat<pattern, result> {
895 let Predicates = [InMips16Mode];
900 class ArithLogicU_pat<PatFrag OpNode, Instruction I> :
901 Mips16Pat<(OpNode CPU16Regs:$r),
904 def: ArithLogicU_pat<not, NotRxRy16>;
905 def: ArithLogicU_pat<ineg, NegRxRy16>;
907 class ArithLogic16_pat<SDNode OpNode, Instruction I> :
908 Mips16Pat<(OpNode CPU16Regs:$l, CPU16Regs:$r),
909 (I CPU16Regs:$l, CPU16Regs:$r)>;
911 def: ArithLogic16_pat<add, AdduRxRyRz16>;
912 def: ArithLogic16_pat<and, AndRxRxRy16>;
913 def: ArithLogic16_pat<mul, MultRxRyRz16>;
914 def: ArithLogic16_pat<or, OrRxRxRy16>;
915 def: ArithLogic16_pat<sub, SubuRxRyRz16>;
916 def: ArithLogic16_pat<xor, XorRxRxRy16>;
918 // Arithmetic and logical instructions with 2 register operands.
920 class ArithLogicI16_pat<SDNode OpNode, PatFrag imm_type, Instruction I> :
921 Mips16Pat<(OpNode CPU16Regs:$in, imm_type:$imm),
922 (I CPU16Regs:$in, imm_type:$imm)>;
924 def: ArithLogicI16_pat<add, immSExt16, AddiuRxRxImmX16>;
925 def: ArithLogicI16_pat<shl, immZExt5, SllX16>;
926 def: ArithLogicI16_pat<srl, immZExt5, SrlX16>;
927 def: ArithLogicI16_pat<sra, immZExt5, SraX16>;
929 class shift_rotate_reg16_pat<SDNode OpNode, Instruction I> :
930 Mips16Pat<(OpNode CPU16Regs:$r, CPU16Regs:$ra),
931 (I CPU16Regs:$r, CPU16Regs:$ra)>;
933 def: shift_rotate_reg16_pat<shl, SllvRxRy16>;
934 def: shift_rotate_reg16_pat<sra, SravRxRy16>;
935 def: shift_rotate_reg16_pat<srl, SrlvRxRy16>;
937 class LoadM16_pat<PatFrag OpNode, Instruction I> :
938 Mips16Pat<(OpNode addr:$addr), (I addr:$addr)>;
940 def: LoadM16_pat<sextloadi8, LbRxRyOffMemX16>;
941 def: LoadM16_pat<zextloadi8, LbuRxRyOffMemX16>;
942 def: LoadM16_pat<sextloadi16, LhRxRyOffMemX16>;
943 def: LoadM16_pat<zextloadi16, LhuRxRyOffMemX16>;
944 def: LoadM16_pat<load, LwRxRyOffMemX16>;
946 class StoreM16_pat<PatFrag OpNode, Instruction I> :
947 Mips16Pat<(OpNode CPU16Regs:$r, addr:$addr), (I CPU16Regs:$r, addr:$addr)>;
949 def: StoreM16_pat<truncstorei8, SbRxRyOffMemX16>;
950 def: StoreM16_pat<truncstorei16, ShRxRyOffMemX16>;
951 def: StoreM16_pat<store, SwRxRyOffMemX16>;
953 // Unconditional branch
954 class UncondBranch16_pat<SDNode OpNode, Instruction I>:
955 Mips16Pat<(OpNode bb:$imm16), (I bb:$imm16)> {
956 let Predicates = [RelocPIC, InMips16Mode];
959 // Jump and Link (Call)
960 let isCall=1, hasDelaySlot=1 in
962 FRR16_JALRC<0, 0, 0, (outs), (ins CPU16Regs:$rs),
963 "jalr \t$rs", [(MipsJmpLink CPU16Regs:$rs)], IIBranch>;
966 let isReturn=1, isTerminator=1, hasDelaySlot=1, isBarrier=1, hasCtrlDep=1,
967 hasExtraSrcRegAllocReq = 1 in
968 def RetRA16 : MipsPseudo16<(outs), (ins), "", [(MipsRet)]>;
973 class SetCC_R16<PatFrag cond_op, Instruction I>:
974 Mips16Pat<(cond_op CPU16Regs:$rx, CPU16Regs:$ry),
975 (I CPU16Regs:$rx, CPU16Regs:$ry)>;
977 class SetCC_I16<PatFrag cond_op, PatLeaf imm_type, Instruction I>:
978 Mips16Pat<(cond_op CPU16Regs:$rx, imm_type:$imm16),
979 (I CPU16Regs:$rx, imm_type:$imm16)>;
981 // Large (>16 bit) immediate loads
982 def : Mips16Pat<(i32 imm:$imm),
983 (OrRxRxRy16 (SllX16 (LiRxImmX16 (HI16 imm:$imm)), 16),
984 (LiRxImmX16 (LO16 imm:$imm)))>;
986 // Carry MipsPatterns
987 def : Mips16Pat<(subc CPU16Regs:$lhs, CPU16Regs:$rhs),
988 (SubuRxRyRz16 CPU16Regs:$lhs, CPU16Regs:$rhs)>;
989 def : Mips16Pat<(addc CPU16Regs:$lhs, CPU16Regs:$rhs),
990 (AdduRxRyRz16 CPU16Regs:$lhs, CPU16Regs:$rhs)>;
991 def : Mips16Pat<(addc CPU16Regs:$src, immSExt16:$imm),
992 (AddiuRxRxImmX16 CPU16Regs:$src, imm:$imm)>;
995 // Some branch conditional patterns are not generated by llvm at this time.
996 // Some are for seemingly arbitrary reasons not used: i.e. with signed number
997 // comparison they are used and for unsigned a different pattern is used.
998 // I am pushing upstream from the full mips16 port and it seemed that I needed
999 // these earlier and the mips32 port has these but now I cannot create test
1000 // cases that use these patterns. While I sort this all out I will leave these
1001 // extra patterns commented out and if I can be sure they are really not used,
1002 // I will delete the code. I don't want to check the code in uncommented without
1003 // a valid test case. In some cases, the compiler is generating patterns with
1004 // setcc instead and earlier I had implemented setcc first so may have masked
1005 // the problem. The setcc variants are suboptimal for mips16 so I may wantto
1006 // figure out how to enable the brcond patterns or else possibly new
1007 // combinations of of brcond and setcc.
1013 <(brcond (i32 (seteq CPU16Regs:$rx, CPU16Regs:$ry)), bb:$imm16),
1014 (BteqzT8CmpX16 CPU16Regs:$rx, CPU16Regs:$ry, bb:$imm16)
1019 <(brcond (i32 (seteq CPU16Regs:$rx, immZExt16:$imm)), bb:$targ16),
1020 (BteqzT8CmpiX16 CPU16Regs:$rx, immSExt16:$imm, bb:$targ16)
1024 <(brcond (i32 (seteq CPU16Regs:$rx, 0)), bb:$targ16),
1025 (BeqzRxImmX16 CPU16Regs:$rx, bb:$targ16)
1029 // bcond-setgt (do we need to have this pair of setlt, setgt??)
1032 <(brcond (i32 (setgt CPU16Regs:$rx, CPU16Regs:$ry)), bb:$imm16),
1033 (BtnezT8SltX16 CPU16Regs:$ry, CPU16Regs:$rx, bb:$imm16)
1040 <(brcond (i32 (setge CPU16Regs:$rx, CPU16Regs:$ry)), bb:$imm16),
1041 (BteqzT8SltX16 CPU16Regs:$rx, CPU16Regs:$ry, bb:$imm16)
1045 // never called because compiler transforms a >= k to a > (k-1)
1047 <(brcond (i32 (setge CPU16Regs:$rx, immSExt16:$imm)), bb:$imm16),
1048 (BteqzT8SltiX16 CPU16Regs:$rx, immSExt16:$imm, bb:$imm16)
1055 <(brcond (i32 (setlt CPU16Regs:$rx, CPU16Regs:$ry)), bb:$imm16),
1056 (BtnezT8SltX16 CPU16Regs:$rx, CPU16Regs:$ry, bb:$imm16)
1060 <(brcond (i32 (setlt CPU16Regs:$rx, immSExt16:$imm)), bb:$imm16),
1061 (BtnezT8SltiX16 CPU16Regs:$rx, immSExt16:$imm, bb:$imm16)
1068 <(brcond (i32 (setle CPU16Regs:$rx, CPU16Regs:$ry)), bb:$imm16),
1069 (BteqzT8SltX16 CPU16Regs:$ry, CPU16Regs:$rx, bb:$imm16)
1076 <(brcond (i32 (setne CPU16Regs:$rx, CPU16Regs:$ry)), bb:$imm16),
1077 (BtnezT8CmpX16 CPU16Regs:$rx, CPU16Regs:$ry, bb:$imm16)
1081 <(brcond (i32 (setne CPU16Regs:$rx, immZExt16:$imm)), bb:$targ16),
1082 (BtnezT8CmpiX16 CPU16Regs:$rx, immSExt16:$imm, bb:$targ16)
1086 <(brcond (i32 (setne CPU16Regs:$rx, 0)), bb:$targ16),
1087 (BnezRxImmX16 CPU16Regs:$rx, bb:$targ16)
1091 // This needs to be there but I forget which code will generate it
1094 <(brcond CPU16Regs:$rx, bb:$targ16),
1095 (BnezRxImmX16 CPU16Regs:$rx, bb:$targ16)
1104 // <(brcond (i32 (setugt CPU16Regs:$rx, CPU16Regs:$ry)), bb:$imm16),
1105 // (BtnezT8SltuX16 CPU16Regs:$ry, CPU16Regs:$rx, bb:$imm16)
1112 // <(brcond (i32 (setuge CPU16Regs:$rx, CPU16Regs:$ry)), bb:$imm16),
1113 // (BteqzT8SltuX16 CPU16Regs:$rx, CPU16Regs:$ry, bb:$imm16)
1121 // <(brcond (i32 (setult CPU16Regs:$rx, CPU16Regs:$ry)), bb:$imm16),
1122 // (BtnezT8SltuX16 CPU16Regs:$rx, CPU16Regs:$ry, bb:$imm16)
1125 def: UncondBranch16_pat<br, BimmX16>;
1128 def: Mips16Pat<(i32 immSExt16:$in),
1129 (AddiuRxRxImmX16 (Move32R16 ZERO), immSExt16:$in)>;
1131 def: Mips16Pat<(i32 immZExt16:$in), (LiRxImmX16 immZExt16:$in)>;
1137 <(MipsDivRem CPU16Regs:$rx, CPU16Regs:$ry),
1138 (DivRxRy16 CPU16Regs:$rx, CPU16Regs:$ry)>;
1144 <(MipsDivRemU CPU16Regs:$rx, CPU16Regs:$ry),
1145 (DivuRxRy16 CPU16Regs:$rx, CPU16Regs:$ry)>;
1150 // if !(a < b) x = y
1152 def : Mips16Pat<(select (i32 (setge CPU16Regs:$a, CPU16Regs:$b)),
1153 CPU16Regs:$x, CPU16Regs:$y),
1154 (SelTBteqZSlt CPU16Regs:$x, CPU16Regs:$y,
1155 CPU16Regs:$a, CPU16Regs:$b)>;
1162 def : Mips16Pat<(select (i32 (setgt CPU16Regs:$a, CPU16Regs:$b)),
1163 CPU16Regs:$x, CPU16Regs:$y),
1164 (SelTBtneZSlt CPU16Regs:$x, CPU16Regs:$y,
1165 CPU16Regs:$b, CPU16Regs:$a)>;
1170 // if !(a < b) x = y;
1173 (select (i32 (setuge CPU16Regs:$a, CPU16Regs:$b)),
1174 CPU16Regs:$x, CPU16Regs:$y),
1175 (SelTBteqZSltu CPU16Regs:$x, CPU16Regs:$y,
1176 CPU16Regs:$a, CPU16Regs:$b)>;
1183 def : Mips16Pat<(select (i32 (setugt CPU16Regs:$a, CPU16Regs:$b)),
1184 CPU16Regs:$x, CPU16Regs:$y),
1185 (SelTBtneZSltu CPU16Regs:$x, CPU16Regs:$y,
1186 CPU16Regs:$b, CPU16Regs:$a)>;
1190 // due to an llvm optimization, i don't think that this will ever
1191 // be used. This is transformed into x = (a > k-1)?x:y
1196 // (select (i32 (setge CPU16Regs:$lhs, immSExt16:$rhs)),
1197 // CPU16Regs:$T, CPU16Regs:$F),
1198 // (SelTBteqZSlti CPU16Regs:$T, CPU16Regs:$F,
1199 // CPU16Regs:$lhs, immSExt16:$rhs)>;
1202 // (select (i32 (setuge CPU16Regs:$lhs, immSExt16:$rhs)),
1203 // CPU16Regs:$T, CPU16Regs:$F),
1204 // (SelTBteqZSltiu CPU16Regs:$T, CPU16Regs:$F,
1205 // CPU16Regs:$lhs, immSExt16:$rhs)>;
1210 // if !(a < k) x = y;
1213 (select (i32 (setlt CPU16Regs:$a, immSExt16:$b)),
1214 CPU16Regs:$x, CPU16Regs:$y),
1215 (SelTBtneZSlti CPU16Regs:$x, CPU16Regs:$y,
1216 CPU16Regs:$a, immSExt16:$b)>;
1222 // x = (a <= b)? x : y
1226 def : Mips16Pat<(select (i32 (setle CPU16Regs:$a, CPU16Regs:$b)),
1227 CPU16Regs:$x, CPU16Regs:$y),
1228 (SelTBteqZSlt CPU16Regs:$x, CPU16Regs:$y,
1229 CPU16Regs:$b, CPU16Regs:$a)>;
1233 // x = (a <= b)? x : y
1237 def : Mips16Pat<(select (i32 (setule CPU16Regs:$a, CPU16Regs:$b)),
1238 CPU16Regs:$x, CPU16Regs:$y),
1239 (SelTBteqZSltu CPU16Regs:$x, CPU16Regs:$y,
1240 CPU16Regs:$b, CPU16Regs:$a)>;
1244 // x = (a == b)? x : y
1246 // if (a != b) x = y
1248 def : Mips16Pat<(select (i32 (seteq CPU16Regs:$a, CPU16Regs:$b)),
1249 CPU16Regs:$x, CPU16Regs:$y),
1250 (SelTBteqZCmp CPU16Regs:$x, CPU16Regs:$y,
1251 CPU16Regs:$b, CPU16Regs:$a)>;
1255 // x = (a == 0)? x : y
1257 // if (a != 0) x = y
1259 def : Mips16Pat<(select (i32 (seteq CPU16Regs:$a, 0)),
1260 CPU16Regs:$x, CPU16Regs:$y),
1261 (SelBeqZ CPU16Regs:$x, CPU16Regs:$y,
1267 // x = (a == k)? x : y
1269 // if (a != k) x = y
1271 def : Mips16Pat<(select (i32 (seteq CPU16Regs:$a, immZExt16:$k)),
1272 CPU16Regs:$x, CPU16Regs:$y),
1273 (SelTBteqZCmpi CPU16Regs:$x, CPU16Regs:$y,
1274 CPU16Regs:$a, immZExt16:$k)>;
1279 // x = (a != b)? x : y
1281 // if (a == b) x = y
1284 def : Mips16Pat<(select (i32 (setne CPU16Regs:$a, CPU16Regs:$b)),
1285 CPU16Regs:$x, CPU16Regs:$y),
1286 (SelTBtneZCmp CPU16Regs:$x, CPU16Regs:$y,
1287 CPU16Regs:$b, CPU16Regs:$a)>;
1291 // x = (a != 0)? x : y
1293 // if (a == 0) x = y
1295 def : Mips16Pat<(select (i32 (setne CPU16Regs:$a, 0)),
1296 CPU16Regs:$x, CPU16Regs:$y),
1297 (SelBneZ CPU16Regs:$x, CPU16Regs:$y,
1305 def : Mips16Pat<(select CPU16Regs:$a,
1306 CPU16Regs:$x, CPU16Regs:$y),
1307 (SelBneZ CPU16Regs:$x, CPU16Regs:$y,
1313 // x = (a != k)? x : y
1315 // if (a == k) x = y
1317 def : Mips16Pat<(select (i32 (setne CPU16Regs:$a, immZExt16:$k)),
1318 CPU16Regs:$x, CPU16Regs:$y),
1319 (SelTBtneZCmpi CPU16Regs:$x, CPU16Regs:$y,
1320 CPU16Regs:$a, immZExt16:$k)>;
1323 // When writing C code to test setxx these patterns,
1324 // some will be transformed into
1325 // other things. So we test using C code but using -O3 and -O0
1330 <(seteq CPU16Regs:$lhs,CPU16Regs:$rhs),
1331 (SltiuCCRxImmX16 (XorRxRxRy16 CPU16Regs:$lhs, CPU16Regs:$rhs), 1)>;
1334 <(seteq CPU16Regs:$lhs, 0),
1335 (SltiuCCRxImmX16 CPU16Regs:$lhs, 1)>;
1343 <(setge CPU16Regs:$lhs, CPU16Regs:$rhs),
1344 (XorRxRxRy16 (SltCCRxRy16 CPU16Regs:$lhs, CPU16Regs:$rhs),
1348 // For constants, llvm transforms this to:
1349 // x > (k -1) and then reverses the operands to use setlt. So this pattern
1350 // is not used now by the compiler. (Presumably checking that k-1 does not
1351 // overflow). The compiler never uses this at a the current time, due to
1352 // other optimizations.
1355 // <(setge CPU16Regs:$lhs, immSExt16:$rhs),
1356 // (XorRxRxRy16 (SltiCCRxImmX16 CPU16Regs:$lhs, immSExt16:$rhs),
1357 // (LiRxImmX16 1))>;
1359 // This catches the x >= -32768 case by transforming it to x > -32769
1362 <(setgt CPU16Regs:$lhs, -32769),
1363 (XorRxRxRy16 (SltiCCRxImmX16 CPU16Regs:$lhs, -32768),
1372 <(setgt CPU16Regs:$lhs, CPU16Regs:$rhs),
1373 (SltCCRxRy16 CPU16Regs:$rhs, CPU16Regs:$lhs)>;
1379 <(setle CPU16Regs:$lhs, CPU16Regs:$rhs),
1380 (XorRxRxRy16 (SltCCRxRy16 CPU16Regs:$rhs, CPU16Regs:$lhs), (LiRxImmX16 1))>;
1385 def: SetCC_R16<setlt, SltCCRxRy16>;
1387 def: SetCC_I16<setlt, immSExt16, SltiCCRxImmX16>;
1393 <(setne CPU16Regs:$lhs,CPU16Regs:$rhs),
1394 (SltuCCRxRy16 (LiRxImmX16 0),
1395 (XorRxRxRy16 CPU16Regs:$lhs, CPU16Regs:$rhs))>;
1402 <(setuge CPU16Regs:$lhs, CPU16Regs:$rhs),
1403 (XorRxRxRy16 (SltuCCRxRy16 CPU16Regs:$lhs, CPU16Regs:$rhs),
1406 // this pattern will never be used because the compiler will transform
1407 // x >= k to x > (k - 1) and then use SLT
1410 // <(setuge CPU16Regs:$lhs, immZExt16:$rhs),
1411 // (XorRxRxRy16 (SltiuCCRxImmX16 CPU16Regs:$lhs, immZExt16:$rhs),
1412 // (LiRxImmX16 1))>;
1418 <(setugt CPU16Regs:$lhs, CPU16Regs:$rhs),
1419 (SltuCCRxRy16 CPU16Regs:$rhs, CPU16Regs:$lhs)>;
1425 <(setule CPU16Regs:$lhs, CPU16Regs:$rhs),
1426 (XorRxRxRy16 (SltuCCRxRy16 CPU16Regs:$rhs, CPU16Regs:$lhs), (LiRxImmX16 1))>;
1431 def: SetCC_R16<setult, SltuCCRxRy16>;
1433 def: SetCC_I16<setult, immSExt16, SltiuCCRxImmX16>;
1435 def: Mips16Pat<(add CPU16Regs:$hi, (MipsLo tglobaladdr:$lo)),
1436 (AddiuRxRxImmX16 CPU16Regs:$hi, tglobaladdr:$lo)>;