// This file describes Mips16 instructions.
//
//===----------------------------------------------------------------------===//
+//
+//
+// Mips Address
+//
+def addr16 :
+ ComplexPattern<iPTR, 3, "selectAddr16", [frameindex], [SDNPWantParent]>;
//
-// RRR-type instruction format
+// Address operand
+def mem16 : Operand<i32> {
+ let PrintMethod = "printMemOperand";
+ let MIOperandInfo = (ops CPU16Regs, simm16, CPU16RegsPlusSP);
+ let EncoderMethod = "getMemEncoding";
+}
+
+def mem16_ea : Operand<i32> {
+ let PrintMethod = "printMemOperandEA";
+ let MIOperandInfo = (ops CPU16RegsPlusSP, simm16);
+ let EncoderMethod = "getMemEncoding";
+}
+
//
+// I-type instruction format
+//
+// this is only used by bimm. the actual assembly value is a 12 bit signed
+// number
+//
+class FI16_ins<bits<5> op, string asmstr, InstrItinClass itin>:
+ FI16<op, (outs), (ins brtarget:$imm16),
+ !strconcat(asmstr, "\t$imm16 # 16 bit inst"), [], itin>;
-class FRRR16_ins<bits<2> _f, string asmstr, InstrItinClass itin> :
- FRRR16<_f, (outs CPU16Regs:$rz), (ins CPU16Regs:$rx, CPU16Regs:$ry),
- !strconcat(asmstr, "\t$rz, $rx, $ry"), [], itin>;
+//
+//
+// I8 instruction format
+//
+
+class FI816_ins_base<bits<3> _func, string asmstr,
+ string asmstr2, InstrItinClass itin>:
+ FI816<_func, (outs), (ins simm16:$imm), !strconcat(asmstr, asmstr2),
+ [], itin>;
+
+class FI816_ins<bits<3> _func, string asmstr,
+ InstrItinClass itin>:
+ FI816_ins_base<_func, asmstr, "\t$imm # 16 bit inst", itin>;
+
+class FI816_SP_ins<bits<3> _func, string asmstr,
+ InstrItinClass itin>:
+ FI816_ins_base<_func, asmstr, "\t$$sp, $imm # 16 bit inst", itin>;
//
-// I8_MOV32R instruction format (used only by MOV32R instruction)
+// RI instruction format
//
-class FI8_MOV32R16_ins<string asmstr, InstrItinClass itin>:
- FI8_MOV32R16<(outs CPURegs:$r32), (ins CPU16Regs:$rz),
- !strconcat(asmstr, "\t$r32, $rz"), [], itin>;
+
+
+class FRI16_ins_base<bits<5> op, string asmstr, string asmstr2,
+ InstrItinClass itin>:
+ FRI16<op, (outs CPU16Regs:$rx), (ins simm16:$imm),
+ !strconcat(asmstr, asmstr2), [], itin>;
+
+class FRI16_ins<bits<5> op, string asmstr,
+ InstrItinClass itin>:
+ FRI16_ins_base<op, asmstr, "\t$rx, $imm \t# 16 bit inst", itin>;
+
+class FRI16_TCP_ins<bits<5> _op, string asmstr,
+ InstrItinClass itin>:
+ FRI16<_op, (outs CPU16Regs:$rx), (ins pcrel16:$imm, i32imm:$size),
+ !strconcat(asmstr, "\t$rx, $imm\t# 16 bit inst"), [], itin>;
+
+class FRI16R_ins_base<bits<5> op, string asmstr, string asmstr2,
+ InstrItinClass itin>:
+ FRI16<op, (outs), (ins CPU16Regs:$rx, simm16:$imm),
+ !strconcat(asmstr, asmstr2), [], itin>;
+
+class FRI16R_ins<bits<5> op, string asmstr,
+ InstrItinClass itin>:
+ FRI16R_ins_base<op, asmstr, "\t$rx, $imm \t# 16 bit inst", itin>;
+
+class F2RI16_ins<bits<5> _op, string asmstr,
+ InstrItinClass itin>:
+ FRI16<_op, (outs CPU16Regs:$rx), (ins CPU16Regs:$rx_, simm16:$imm),
+ !strconcat(asmstr, "\t$rx, $imm\t# 16 bit inst"), [], itin> {
+ let Constraints = "$rx_ = $rx";
+}
+
+class FRI16_B_ins<bits<5> _op, string asmstr,
+ InstrItinClass itin>:
+ FRI16<_op, (outs), (ins CPU16Regs:$rx, brtarget:$imm),
+ !strconcat(asmstr, "\t$rx, $imm # 16 bit inst"), [], itin>;
+//
+// Compare a register and immediate and place result in CC
+// Implicit use of T8
+//
+// EXT-CCRR Instruction format
+//
+class FEXT_CCRXI16_ins<string asmstr>:
+ MipsPseudo16<(outs CPU16Regs:$cc), (ins CPU16Regs:$rx, simm16:$imm),
+ !strconcat(asmstr, "\t$rx, $imm\n\tmove\t$cc, $$t8"), []> {
+ let isCodeGenOnly=1;
+ let usesCustomInserter = 1;
+}
+
+// JAL and JALX instruction format
+//
+class FJAL16_ins<bits<1> _X, string asmstr,
+ InstrItinClass itin>:
+ FJAL16<_X, (outs), (ins simm20:$imm),
+ !strconcat(asmstr, "\t$imm\n\tnop"),[],
+ itin> {
+ let isCodeGenOnly=1;
+ let Size=6;
+}
+
+class FJALB16_ins<bits<1> _X, string asmstr,
+ InstrItinClass itin>:
+ FJAL16<_X, (outs), (ins simm20:$imm),
+ !strconcat(asmstr, "\t$imm\t# branch\n\tnop"),[],
+ itin> {
+ let isCodeGenOnly=1;
+ let Size=6;
+}
+
+//
+// EXT-I instruction format
+//
+class FEXT_I16_ins<bits<5> eop, string asmstr, InstrItinClass itin> :
+ FEXT_I16<eop, (outs), (ins brtarget:$imm16),
+ !strconcat(asmstr, "\t$imm16"),[], itin>;
+
+//
+// EXT-I8 instruction format
+//
+
+class FEXT_I816_ins_base<bits<3> _func, string asmstr,
+ string asmstr2, InstrItinClass itin>:
+ FEXT_I816<_func, (outs), (ins simm16:$imm), !strconcat(asmstr, asmstr2),
+ [], itin>;
+
+class FEXT_I816_ins<bits<3> _func, string asmstr,
+ InstrItinClass itin>:
+ FEXT_I816_ins_base<_func, asmstr, "\t$imm", itin>;
+
+class FEXT_I816_SP_ins<bits<3> _func, string asmstr,
+ InstrItinClass itin>:
+ FEXT_I816_ins_base<_func, asmstr, "\t$$sp, $imm", itin>;
+
+//
+// Assembler formats in alphabetical order.
+// Natural and pseudos are mixed together.
+//
+// Compare two registers and place result in CC
+// Implicit use of T8
+//
+// CC-RR Instruction format
+//
+class FCCRR16_ins<string asmstr> :
+ MipsPseudo16<(outs CPU16Regs:$cc), (ins CPU16Regs:$rx, CPU16Regs:$ry),
+ !strconcat(asmstr, "\t$rx, $ry\n\tmove\t$cc, $$t8"), []> {
+ let isCodeGenOnly=1;
+ let usesCustomInserter = 1;
+}
//
// EXT-RI instruction format
InstrItinClass itin>:
FEXT_RI16_ins_base<_op, asmstr, "\t$rx, $imm", itin>;
+class FEXT_RI16R_ins_base<bits<5> _op, string asmstr, string asmstr2,
+ InstrItinClass itin>:
+ FEXT_RI16<_op, (outs ), (ins CPU16Regs:$rx, simm16:$imm),
+ !strconcat(asmstr, asmstr2), [], itin>;
+
+class FEXT_RI16R_ins<bits<5> _op, string asmstr,
+ InstrItinClass itin>:
+ FEXT_RI16R_ins_base<_op, asmstr, "\t$rx, $imm", itin>;
+
class FEXT_RI16_PC_ins<bits<5> _op, string asmstr, InstrItinClass itin>:
FEXT_RI16_ins_base<_op, asmstr, "\t$rx, $$pc, $imm", itin>;
+class FEXT_RI16_B_ins<bits<5> _op, string asmstr,
+ InstrItinClass itin>:
+ FEXT_RI16<_op, (outs), (ins CPU16Regs:$rx, brtarget:$imm),
+ !strconcat(asmstr, "\t$rx, $imm"), [], itin>;
+
+class FEXT_RI16_TCP_ins<bits<5> _op, string asmstr,
+ InstrItinClass itin>:
+ FEXT_RI16<_op, (outs CPU16Regs:$rx), (ins pcrel16:$imm, i32imm:$size),
+ !strconcat(asmstr, "\t$rx, $imm"), [], itin>;
class FEXT_2RI16_ins<bits<5> _op, string asmstr,
InstrItinClass itin>:
}
+// this has an explicit sp argument that we ignore to work around a problem
+// in the compiler
+class FEXT_RI16_SP_explicit_ins<bits<5> _op, string asmstr,
+ InstrItinClass itin>:
+ FEXT_RI16<_op, (outs CPU16Regs:$rx), (ins CPUSPReg:$ry, simm16:$imm),
+ !strconcat(asmstr, "\t$rx, $imm ( $ry ); "), [], itin>;
+
+class FEXT_RI16_SP_Store_explicit_ins<bits<5> _op, string asmstr,
+ InstrItinClass itin>:
+ FEXT_RI16<_op, (outs), (ins CPU16Regs:$rx, CPUSPReg:$ry, simm16:$imm),
+ !strconcat(asmstr, "\t$rx, $imm ( $ry ); "), [], itin>;
+
+//
+// EXT-RRI instruction format
+//
+
+class FEXT_RRI16_mem_ins<bits<5> op, string asmstr, Operand MemOpnd,
+ InstrItinClass itin>:
+ FEXT_RRI16<op, (outs CPU16Regs:$ry), (ins MemOpnd:$addr),
+ !strconcat(asmstr, "\t$ry, $addr"), [], itin>;
+
+class FEXT_RRI16_mem2_ins<bits<5> op, string asmstr, Operand MemOpnd,
+ InstrItinClass itin>:
+ FEXT_RRI16<op, (outs ), (ins CPU16Regs:$ry, MemOpnd:$addr),
+ !strconcat(asmstr, "\t$ry, $addr"), [], itin>;
+
+//
+//
+// EXT-RRI-A instruction format
+//
+
+class FEXT_RRI_A16_mem_ins<bits<1> op, string asmstr, Operand MemOpnd,
+ InstrItinClass itin>:
+ FEXT_RRI_A16<op, (outs CPU16Regs:$ry), (ins MemOpnd:$addr),
+ !strconcat(asmstr, "\t$ry, $addr"), [], itin>;
+
+//
+// EXT-SHIFT instruction format
+//
+class FEXT_SHIFT16_ins<bits<2> _f, string asmstr, InstrItinClass itin>:
+ FEXT_SHIFT16<_f, (outs CPU16Regs:$rx), (ins CPU16Regs:$ry, uimm5:$sa),
+ !strconcat(asmstr, "\t$rx, $ry, $sa"), [], itin>;
+
+//
+// EXT-T8I8
+//
+class FEXT_T8I816_ins<string asmstr, string asmstr2>:
+ MipsPseudo16<(outs),
+ (ins CPU16Regs:$rx, CPU16Regs:$ry, brtarget:$imm),
+ !strconcat(asmstr2, !strconcat("\t$rx, $ry\n\t",
+ !strconcat(asmstr, "\t$imm"))),[]> {
+ let isCodeGenOnly=1;
+ let usesCustomInserter = 1;
+}
+
+//
+// EXT-T8I8I
+//
+class FEXT_T8I8I16_ins<string asmstr, string asmstr2>:
+ MipsPseudo16<(outs),
+ (ins CPU16Regs:$rx, simm16:$imm, brtarget:$targ),
+ !strconcat(asmstr2, !strconcat("\t$rx, $imm\n\t",
+ !strconcat(asmstr, "\t$targ"))), []> {
+ let isCodeGenOnly=1;
+ let usesCustomInserter = 1;
+}
+//
+
+
+//
+// I8_MOVR32 instruction format (used only by the MOVR32 instructio
+//
+class FI8_MOVR3216_ins<string asmstr, InstrItinClass itin>:
+ FI8_MOVR3216<(outs CPU16Regs:$rz), (ins GPR32:$r32),
+ !strconcat(asmstr, "\t$rz, $r32"), [], itin>;
+
+//
+// I8_MOV32R instruction format (used only by MOV32R instruction)
+//
+
+class FI8_MOV32R16_ins<string asmstr, InstrItinClass itin>:
+ FI8_MOV32R16<(outs GPR32:$r32), (ins CPU16Regs:$rz),
+ !strconcat(asmstr, "\t$r32, $rz"), [], itin>;
+
+//
+// This are pseudo formats for multiply
+// This first one can be changed to non-pseudo now.
+//
+// MULT
+//
+class FMULT16_ins<string asmstr, InstrItinClass itin> :
+ MipsPseudo16<(outs), (ins CPU16Regs:$rx, CPU16Regs:$ry),
+ !strconcat(asmstr, "\t$rx, $ry"), []>;
+
+//
+// MULT-LO
+//
+class FMULT16_LO_ins<string asmstr, InstrItinClass itin> :
+ MipsPseudo16<(outs CPU16Regs:$rz), (ins CPU16Regs:$rx, CPU16Regs:$ry),
+ !strconcat(asmstr, "\t$rx, $ry\n\tmflo\t$rz"), []> {
+ let isCodeGenOnly=1;
+}
+
//
// RR-type instruction format
//
!strconcat(asmstr, "\t$rx, $ry"), [], itin> {
}
+class FRRBreakNull16_ins<string asmstr, InstrItinClass itin> :
+ FRRBreak16<(outs), (ins), asmstr, [], itin> {
+ let Code=0;
+}
+
+class FRR16R_ins<bits<5> f, string asmstr, InstrItinClass itin> :
+ FRR16<f, (outs), (ins CPU16Regs:$rx, CPU16Regs:$ry),
+ !strconcat(asmstr, "\t$rx, $ry"), [], itin> {
+}
+
+class FRRTR16_ins<string asmstr> :
+ MipsPseudo16<(outs CPU16Regs:$rz), (ins CPU16Regs:$rx, CPU16Regs:$ry),
+ !strconcat(asmstr, "\t$rx, $ry\n\tmove\t$rz, $$t8"), []> ;
+
+//
+// maybe refactor but need a $zero as a dummy first parameter
+//
+class FRR16_div_ins<bits<5> f, string asmstr, InstrItinClass itin> :
+ FRR16<f, (outs ), (ins CPU16Regs:$rx, CPU16Regs:$ry),
+ !strconcat(asmstr, "\t$$zero, $rx, $ry"), [], itin> ;
+
+class FUnaryRR16_ins<bits<5> f, string asmstr, InstrItinClass itin> :
+ FRR16<f, (outs CPU16Regs:$rx), (ins CPU16Regs:$ry),
+ !strconcat(asmstr, "\t$rx, $ry"), [], itin> ;
+
+
+class FRR16_M_ins<bits<5> f, string asmstr,
+ InstrItinClass itin> :
+ FRR16<f, (outs CPU16Regs:$rx), (ins),
+ !strconcat(asmstr, "\t$rx"), [], itin>;
+
class FRxRxRy16_ins<bits<5> f, string asmstr,
InstrItinClass itin> :
FRR16<f, (outs CPU16Regs:$rz), (ins CPU16Regs:$rx, CPU16Regs:$ry),
FRR16_JALRC<nd_, l_, 1, (outs), (ins), !strconcat(asmstr, "\t $$ra"),
[], itin> ;
+
+class FRR16_JALRC_ins<bits<1> nd, bits<1> l, bits<1> ra,
+ string asmstr, InstrItinClass itin>:
+ FRR16_JALRC<nd, l, ra, (outs), (ins CPU16Regs:$rx),
+ !strconcat(asmstr, "\t $rx"), [], itin> ;
+
+class FRR_SF16_ins
+ <bits<5> _funct, bits<3> _subfunc,
+ string asmstr, InstrItinClass itin>:
+ FRR_SF16<_funct, _subfunc, (outs CPU16Regs:$rx), (ins CPU16Regs:$rx_),
+ !strconcat(asmstr, "\t $rx"),
+ [], itin> {
+ let Constraints = "$rx_ = $rx";
+ }
//
-// EXT-RRI instruction format
+// RRR-type instruction format
//
-class FEXT_RRI16_mem_ins<bits<5> op, string asmstr, Operand MemOpnd,
- InstrItinClass itin>:
- FEXT_RRI16<op, (outs CPU16Regs:$ry), (ins MemOpnd:$addr),
- !strconcat(asmstr, "\t$ry, $addr"), [], itin>;
+class FRRR16_ins<bits<2> _f, string asmstr, InstrItinClass itin> :
+ FRRR16<_f, (outs CPU16Regs:$rz), (ins CPU16Regs:$rx, CPU16Regs:$ry),
+ !strconcat(asmstr, "\t$rz, $rx, $ry"), [], itin>;
-class FEXT_RRI16_mem2_ins<bits<5> op, string asmstr, Operand MemOpnd,
- InstrItinClass itin>:
- FEXT_RRI16<op, (outs ), (ins CPU16Regs:$ry, MemOpnd:$addr),
- !strconcat(asmstr, "\t$ry, $addr"), [], itin>;
+//
+// These Sel patterns support the generation of conditional move
+// pseudo instructions.
+//
+// The nomenclature uses the components making up the pseudo and may
+// be a bit counter intuitive when compared with the end result we seek.
+// For example using a bqez in the example directly below results in the
+// conditional move being done if the tested register is not zero.
+// I considered in easier to check by keeping the pseudo consistent with
+// it's components but it could have been done differently.
+//
+// The simplest case is when can test and operand directly and do the
+// conditional move based on a simple mips16 conditional
+// branch instruction.
+// for example:
+// if $op == beqz or bnez:
+//
+// $op1 $rt, .+4
+// move $rd, $rs
+//
+// if $op == beqz, then if $rt != 0, then the conditional assignment
+// $rd = $rs is done.
+// if $op == bnez, then if $rt == 0, then the conditional assignment
+// $rd = $rs is done.
//
-// EXT-SHIFT instruction format
+// So this pseudo class only has one operand, i.e. op
//
-class FEXT_SHIFT16_ins<bits<2> _f, string asmstr, InstrItinClass itin>:
- FEXT_SHIFT16<_f, (outs CPU16Regs:$rx), (ins CPU16Regs:$ry, shamt:$sa),
- !strconcat(asmstr, "\t$rx, $ry, $sa"), [], itin>;
+class Sel<string op>:
+ MipsPseudo16<(outs CPU16Regs:$rd_), (ins CPU16Regs:$rd, CPU16Regs:$rs,
+ CPU16Regs:$rt),
+ !strconcat(op, "\t$rt, .+4\n\t\n\tmove $rd, $rs"), []> {
+ //let isCodeGenOnly=1;
+ let Constraints = "$rd = $rd_";
+ let usesCustomInserter = 1;
+}
//
-// Address operand
-def mem16 : Operand<i32> {
- let PrintMethod = "printMemOperand";
- let MIOperandInfo = (ops CPU16Regs, simm16);
- let EncoderMethod = "getMemEncoding";
+// The next two instruction classes allow for an operand which tests
+// two operands and returns a value in register T8 and
+//then does a conditional branch based on the value of T8
+//
+
+// op2 can be cmpi or slti/sltiu
+// op1 can bteqz or btnez
+// the operands for op2 are a register and a signed constant
+//
+// $op2 $t, $imm ;test register t and branch conditionally
+// $op1 .+4 ;op1 is a conditional branch
+// move $rd, $rs
+//
+//
+class SeliT<string op1, string op2>:
+ MipsPseudo16<(outs CPU16Regs:$rd_), (ins CPU16Regs:$rd, CPU16Regs:$rs,
+ CPU16Regs:$rl, simm16:$imm),
+ !strconcat(op2,
+ !strconcat("\t$rl, $imm\n\t",
+ !strconcat(op1, "\t.+4\n\tmove $rd, $rs"))), []> {
+ let isCodeGenOnly=1;
+ let Constraints = "$rd = $rd_";
+ let usesCustomInserter = 1;
+}
+
+//
+// op2 can be cmp or slt/sltu
+// op1 can be bteqz or btnez
+// the operands for op2 are two registers
+// op1 is a conditional branch
+//
+//
+// $op2 $rl, $rr ;test registers rl,rr
+// $op1 .+4 ;op2 is a conditional branch
+// move $rd, $rs
+//
+//
+class SelT<string op1, string op2>:
+ MipsPseudo16<(outs CPU16Regs:$rd_),
+ (ins CPU16Regs:$rd, CPU16Regs:$rs,
+ CPU16Regs:$rl, CPU16Regs:$rr),
+ !strconcat(op2,
+ !strconcat("\t$rl, $rr\n\t",
+ !strconcat(op1, "\t.+4\n\tmove $rd, $rs"))), []> {
+ let isCodeGenOnly=1;
+ let Constraints = "$rd = $rd_";
+ let usesCustomInserter = 1;
}
+//
+// 32 bit constant
+//
+def imm32: Operand<i32>;
+
+def Constant32:
+ MipsPseudo16<(outs), (ins imm32:$imm), "\t.word $imm", []>;
+
+def LwConstant32:
+ MipsPseudo16<(outs CPU16Regs:$rx), (ins imm32:$imm, imm32:$constid),
+ "lw\t$rx, 1f\n\tb\t2f\n\t.align\t2\n1: \t.word\t$imm\n2:", []>;
+
+
//
// Some general instruction class info
//
bit neverHasSideEffects = 1;
}
+class branch16 {
+ bit isBranch = 1;
+ bit isTerminator = 1;
+ bit isBarrier = 1;
+}
+
+class cbranch16 {
+ bit isBranch = 1;
+ bit isTerminator = 1;
+}
+
+class MayLoad {
+ bit mayLoad = 1;
+}
+
+class MayStore {
+ bit mayStore = 1;
+}
//
+
// Format: ADDIU rx, immediate MIPS16e
// Purpose: Add Immediate Unsigned Word (2-Operand, Extended)
// To add a constant to a 32-bit integer.
//
def AddiuRxImmX16: FEXT_RI16_ins<0b01001, "addiu", IIAlu>;
+def AddiuRxRxImm16: F2RI16_ins<0b01001, "addiu", IIAlu>,
+ ArithLogic16Defs<0> {
+ let AddedComplexity = 5;
+}
def AddiuRxRxImmX16: FEXT_2RI16_ins<0b01001, "addiu", IIAlu>,
- ArithLogic16Defs<0>;
+ ArithLogic16Defs<0> {
+ let isCodeGenOnly = 1;
+}
+
+def AddiuRxRyOffMemX16:
+ FEXT_RRI_A16_mem_ins<0, "addiu", mem16_ea, IIAlu>;
//
// To add a constant to the program counter.
//
def AddiuRxPcImmX16: FEXT_RI16_PC_ins<0b00001, "addiu", IIAlu>;
+
+//
+// Format: ADDIU sp, immediate MIPS16e
+// Purpose: Add Immediate Unsigned Word (2-Operand, SP-Relative, Extended)
+// To add a constant to the stack pointer.
+//
+def AddiuSpImm16
+ : FI816_SP_ins<0b011, "addiu", IIAlu> {
+ let Defs = [SP];
+ let Uses = [SP];
+ let AddedComplexity = 5;
+}
+
+def AddiuSpImmX16
+ : FEXT_I816_SP_ins<0b011, "addiu", IIAlu> {
+ let Defs = [SP];
+ let Uses = [SP];
+}
+
//
// Format: ADDU rz, rx, ry MIPS16e
// Purpose: Add Unsigned Word (3-Operand)
def AndRxRxRy16: FRxRxRy16_ins<0b01100, "and", IIAlu>, ArithLogic16Defs<1>;
+
+//
+// Format: BEQZ rx, offset MIPS16e
+// Purpose: Branch on Equal to Zero
+// To test a GPR then do a PC-relative conditional branch.
+//
+def BeqzRxImm16: FRI16_B_ins<0b00100, "beqz", IIAlu>, cbranch16;
+
+
+//
+// Format: BEQZ rx, offset MIPS16e
+// Purpose: Branch on Equal to Zero (Extended)
+// To test a GPR then do a PC-relative conditional branch.
+//
+def BeqzRxImmX16: FEXT_RI16_B_ins<0b00100, "beqz", IIAlu>, cbranch16;
+
+//
+// Format: B offset MIPS16e
+// Purpose: Unconditional Branch (Extended)
+// To do an unconditional PC-relative branch.
+//
+
+def Bimm16: FI16_ins<0b00010, "b", IIAlu>, branch16;
+
+// Format: B offset MIPS16e
+// Purpose: Unconditional Branch
+// To do an unconditional PC-relative branch.
+//
+def BimmX16: FEXT_I16_ins<0b00010, "b", IIAlu>, branch16;
+
+//
+// Format: BNEZ rx, offset MIPS16e
+// Purpose: Branch on Not Equal to Zero
+// To test a GPR then do a PC-relative conditional branch.
+//
+def BnezRxImm16: FRI16_B_ins<0b00101, "bnez", IIAlu>, cbranch16;
+
+//
+// Format: BNEZ rx, offset MIPS16e
+// Purpose: Branch on Not Equal to Zero (Extended)
+// To test a GPR then do a PC-relative conditional branch.
+//
+def BnezRxImmX16: FEXT_RI16_B_ins<0b00101, "bnez", IIAlu>, cbranch16;
+
+
+//
+//Format: BREAK immediate
+// Purpose: Breakpoint
+// To cause a Breakpoint exception.
+
+def Break16: FRRBreakNull16_ins<"break 0", NoItinerary>;
+//
+// Format: BTEQZ offset MIPS16e
+// Purpose: Branch on T Equal to Zero (Extended)
+// To test special register T then do a PC-relative conditional branch.
+//
+def Bteqz16: FI816_ins<0b000, "bteqz", IIAlu>, cbranch16 {
+ let Uses = [T8];
+}
+
+def BteqzX16: FEXT_I816_ins<0b000, "bteqz", IIAlu>, cbranch16 {
+ let Uses = [T8];
+}
+
+def BteqzT8CmpX16: FEXT_T8I816_ins<"bteqz", "cmp">, cbranch16;
+
+def BteqzT8CmpiX16: FEXT_T8I8I16_ins<"bteqz", "cmpi">,
+ cbranch16;
+
+def BteqzT8SltX16: FEXT_T8I816_ins<"bteqz", "slt">, cbranch16;
+
+def BteqzT8SltuX16: FEXT_T8I816_ins<"bteqz", "sltu">, cbranch16;
+
+def BteqzT8SltiX16: FEXT_T8I8I16_ins<"bteqz", "slti">, cbranch16;
+
+def BteqzT8SltiuX16: FEXT_T8I8I16_ins<"bteqz", "sltiu">,
+ cbranch16;
+
+//
+// Format: BTNEZ offset MIPS16e
+// Purpose: Branch on T Not Equal to Zero (Extended)
+// To test special register T then do a PC-relative conditional branch.
+//
+
+def Btnez16: FI816_ins<0b001, "btnez", IIAlu>, cbranch16 {
+ let Uses = [T8];
+}
+
+def BtnezX16: FEXT_I816_ins<0b001, "btnez", IIAlu> ,cbranch16 {
+ let Uses = [T8];
+}
+
+def BtnezT8CmpX16: FEXT_T8I816_ins<"btnez", "cmp">, cbranch16;
+
+def BtnezT8CmpiX16: FEXT_T8I8I16_ins<"btnez", "cmpi">, cbranch16;
+
+def BtnezT8SltX16: FEXT_T8I816_ins<"btnez", "slt">, cbranch16;
+
+def BtnezT8SltuX16: FEXT_T8I816_ins<"btnez", "sltu">, cbranch16;
+
+def BtnezT8SltiX16: FEXT_T8I8I16_ins<"btnez", "slti">, cbranch16;
+
+def BtnezT8SltiuX16: FEXT_T8I8I16_ins<"btnez", "sltiu">,
+ cbranch16;
+
+//
+// Format: CMP rx, ry MIPS16e
+// Purpose: Compare
+// To compare the contents of two GPRs.
+//
+def CmpRxRy16: FRR16R_ins<0b01010, "cmp", IIAlu> {
+ let Defs = [T8];
+}
+
+//
+// Format: CMPI rx, immediate MIPS16e
+// Purpose: Compare Immediate
+// To compare a constant with the contents of a GPR.
+//
+def CmpiRxImm16: FRI16R_ins<0b01110, "cmpi", IIAlu> {
+ let Defs = [T8];
+}
+
+//
+// Format: CMPI rx, immediate MIPS16e
+// Purpose: Compare Immediate (Extended)
+// To compare a constant with the contents of a GPR.
+//
+def CmpiRxImmX16: FEXT_RI16R_ins<0b01110, "cmpi", IIAlu> {
+ let Defs = [T8];
+}
+
+
+//
+// Format: DIV rx, ry MIPS16e
+// Purpose: Divide Word
+// To divide 32-bit signed integers.
+//
+def DivRxRy16: FRR16_div_ins<0b11010, "div", IIAlu> {
+ let Defs = [HI0, LO0];
+}
+
+//
+// Format: DIVU rx, ry MIPS16e
+// Purpose: Divide Unsigned Word
+// To divide 32-bit unsigned integers.
+//
+def DivuRxRy16: FRR16_div_ins<0b11011, "divu", IIAlu> {
+ let Defs = [HI0, LO0];
+}
+//
+// Format: JAL target MIPS16e
+// Purpose: Jump and Link
+// To execute a procedure call within the current 256 MB-aligned
+// region and preserve the current ISA.
+//
+
+def Jal16 : FJAL16_ins<0b0, "jal", IIAlu> {
+ let hasDelaySlot = 0; // not true, but we add the nop for now
+ let isCall=1;
+ let Defs = [RA];
+}
+
+def JalB16 : FJALB16_ins<0b0, "jal", IIAlu>, branch16 {
+ let hasDelaySlot = 0; // not true, but we add the nop for now
+ let isBranch=1;
+ let Defs = [RA];
+}
+
//
// Format: JR ra MIPS16e
// Purpose: Jump Register Through Register ra
// address register.
//
-def JrRa16: FRR16_JALRC_RA_only_ins<0, 0, "jr", IIAlu>;
+def JrRa16: FRR16_JALRC_RA_only_ins<0, 0, "jr", IIAlu> {
+ let isBranch = 1;
+ let isIndirectBranch = 1;
+ let hasDelaySlot = 1;
+ let isTerminator=1;
+ let isBarrier=1;
+}
+
+def JrcRa16: FRR16_JALRC_RA_only_ins<1, 1, "jrc", IIAlu> {
+ let isBranch = 1;
+ let isIndirectBranch = 1;
+ let isTerminator=1;
+ let isBarrier=1;
+}
+def JrcRx16: FRR16_JALRC_ins<1, 1, 0, "jrc", IIAlu> {
+ let isBranch = 1;
+ let isIndirectBranch = 1;
+ let isTerminator=1;
+ let isBarrier=1;
+}
//
// Format: LB ry, offset(rx) MIPS16e
// Purpose: Load Byte (Extended)
// To load a byte from memory as a signed value.
//
-def LbRxRyOffMemX16: FEXT_RRI16_mem_ins<0b10011, "lb", mem16, IIAlu>;
+def LbRxRyOffMemX16: FEXT_RRI16_mem_ins<0b10011, "lb", mem16, II_LB>, MayLoad{
+ let isCodeGenOnly = 1;
+}
//
// Format: LBU ry, offset(rx) MIPS16e
// Purpose: Load Byte Unsigned (Extended)
// To load a byte from memory as a unsigned value.
//
-def LbuRxRyOffMemX16: FEXT_RRI16_mem_ins<0b10100, "lbu", mem16, IIAlu>;
+def LbuRxRyOffMemX16:
+ FEXT_RRI16_mem_ins<0b10100, "lbu", mem16, II_LBU>, MayLoad {
+ let isCodeGenOnly = 1;
+}
//
// Format: LH ry, offset(rx) MIPS16e
// Purpose: Load Halfword signed (Extended)
// To load a halfword from memory as a signed value.
//
-def LhRxRyOffMemX16: FEXT_RRI16_mem_ins<0b10100, "lh", mem16, IIAlu>;
+def LhRxRyOffMemX16: FEXT_RRI16_mem_ins<0b10100, "lh", mem16, II_LH>, MayLoad{
+ let isCodeGenOnly = 1;
+}
//
// Format: LHU ry, offset(rx) MIPS16e
// Purpose: Load Halfword unsigned (Extended)
// To load a halfword from memory as an unsigned value.
//
-def LhuRxRyOffMemX16: FEXT_RRI16_mem_ins<0b10100, "lhu", mem16, IIAlu>;
+def LhuRxRyOffMemX16:
+ FEXT_RRI16_mem_ins<0b10100, "lhu", mem16, II_LHU>, MayLoad {
+ let isCodeGenOnly = 1;
+}
+
+//
+// Format: LI rx, immediate MIPS16e
+// Purpose: Load Immediate
+// To load a constant into a GPR.
+//
+def LiRxImm16: FRI16_ins<0b01101, "li", IIAlu>;
//
// Format: LI rx, immediate MIPS16e
// Purpose: Load Immediate (Extended)
// To load a constant into a GPR.
//
-def LiRxImmX16: FEXT_RI16_ins<0b01101, "li", IIAlu>;
+def LiRxImmX16: FEXT_RI16_ins<0b01101, "li", IIAlu>;
+
+def LiRxImmAlignX16: FEXT_RI16_ins<0b01101, ".align 2\n\tli", IIAlu> {
+ let isCodeGenOnly = 1;
+}
+
+//
+// Format: LW ry, offset(rx) MIPS16e
+// Purpose: Load Word (Extended)
+// To load a word from memory as a signed value.
+//
+def LwRxRyOffMemX16: FEXT_RRI16_mem_ins<0b10011, "lw", mem16, II_LW>, MayLoad{
+ let isCodeGenOnly = 1;
+}
+
+// Format: LW rx, offset(sp) MIPS16e
+// Purpose: Load Word (SP-Relative, Extended)
+// To load an SP-relative word from memory as a signed value.
+//
+def LwRxSpImmX16: FEXT_RI16_SP_explicit_ins<0b10010, "lw", II_LW>, MayLoad{
+ let Uses = [SP];
+}
+
+def LwRxPcTcp16: FRI16_TCP_ins<0b10110, "lw", II_LW>, MayLoad;
+
+def LwRxPcTcpX16: FEXT_RI16_TCP_ins<0b10110, "lw", II_LW>, MayLoad;
+//
+// Format: MOVE r32, rz MIPS16e
+// Purpose: Move
+// To move the contents of a GPR to a GPR.
+//
+def Move32R16: FI8_MOV32R16_ins<"move", IIAlu>;
+
+//
+// Format: MOVE ry, r32 MIPS16e
+//Purpose: Move
+// To move the contents of a GPR to a GPR.
+//
+def MoveR3216: FI8_MOVR3216_ins<"move", IIAlu>;
+
+//
+// Format: MFHI rx MIPS16e
+// Purpose: Move From HI Register
+// To copy the special purpose HI register to a GPR.
+//
+def Mfhi16: FRR16_M_ins<0b10000, "mfhi", IIAlu> {
+ let Uses = [HI0];
+ let neverHasSideEffects = 1;
+}
+
+//
+// Format: MFLO rx MIPS16e
+// Purpose: Move From LO Register
+// To copy the special purpose LO register to a GPR.
+//
+def Mflo16: FRR16_M_ins<0b10010, "mflo", IIAlu> {
+ let Uses = [LO0];
+ let neverHasSideEffects = 1;
+}
+
+//
+// Pseudo Instruction for mult
+//
+def MultRxRy16: FMULT16_ins<"mult", IIAlu> {
+ let isCommutable = 1;
+ let neverHasSideEffects = 1;
+ let Defs = [HI0, LO0];
+}
+
+def MultuRxRy16: FMULT16_ins<"multu", IIAlu> {
+ let isCommutable = 1;
+ let neverHasSideEffects = 1;
+ let Defs = [HI0, LO0];
+}
+
+//
+// Format: MULT rx, ry MIPS16e
+// Purpose: Multiply Word
+// To multiply 32-bit signed integers.
+//
+def MultRxRyRz16: FMULT16_LO_ins<"mult", IIAlu> {
+ let isCommutable = 1;
+ let neverHasSideEffects = 1;
+ let Defs = [HI0, LO0];
+}
+
+//
+// Format: MULTU rx, ry MIPS16e
+// Purpose: Multiply Unsigned Word
+// To multiply 32-bit unsigned integers.
+//
+def MultuRxRyRz16: FMULT16_LO_ins<"multu", IIAlu> {
+ let isCommutable = 1;
+ let neverHasSideEffects = 1;
+ let Defs = [HI0, LO0];
+}
+
+//
+// Format: NEG rx, ry MIPS16e
+// Purpose: Negate
+// To negate an integer value.
+//
+def NegRxRy16: FUnaryRR16_ins<0b11101, "neg", IIAlu>;
+
+//
+// Format: NOT rx, ry MIPS16e
+// Purpose: Not
+// To complement an integer value
+//
+def NotRxRy16: FUnaryRR16_ins<0b01111, "not", IIAlu>;
+
+//
+// Format: OR rx, ry MIPS16e
+// Purpose: Or
+// To do a bitwise logical OR.
+//
+def OrRxRxRy16: FRxRxRy16_ins<0b01101, "or", IIAlu>, ArithLogic16Defs<1>;
+
+//
+// Format: RESTORE {ra,}{s0/s1/s0-1,}{framesize}
+// (All args are optional) MIPS16e
+// Purpose: Restore Registers and Deallocate Stack Frame
+// To deallocate a stack frame before exit from a subroutine,
+// restoring return address and static registers, and adjusting
+// stack
+//
+
+def Restore16:
+ FI8_SVRS16<0b1, (outs), (ins variable_ops),
+ "", [], II_RESTORE >, MayLoad {
+ let isCodeGenOnly = 1;
+ let Defs = [SP];
+ let Uses = [SP];
+}
+
+
+def RestoreX16:
+ FI8_SVRS16<0b1, (outs), (ins variable_ops),
+ "", [], II_RESTORE >, MayLoad {
+ let isCodeGenOnly = 1;
+ let Defs = [SP];
+ let Uses = [SP];
+}
+
+//
+// Format: SAVE {ra,}{s0/s1/s0-1,}{framesize} (All arguments are optional)
+// MIPS16e
+// Purpose: Save Registers and Set Up Stack Frame
+// To set up a stack frame on entry to a subroutine,
+// saving return address and static registers, and adjusting stack
+//
+def Save16:
+ FI8_SVRS16<0b1, (outs), (ins variable_ops),
+ "", [], II_SAVE >, MayStore {
+ let isCodeGenOnly = 1;
+ let Uses = [SP];
+ let Defs = [SP];
+}
+
+def SaveX16:
+ FI8_SVRS16<0b1, (outs), (ins variable_ops),
+ "", [], II_SAVE >, MayStore {
+ let isCodeGenOnly = 1;
+ let Uses = [SP];
+ let Defs = [SP];
+}
+//
+// Format: SB ry, offset(rx) MIPS16e
+// Purpose: Store Byte (Extended)
+// To store a byte to memory.
+//
+def SbRxRyOffMemX16:
+ FEXT_RRI16_mem2_ins<0b11000, "sb", mem16, II_SB>, MayStore;
+
+//
+// Format: SEB rx MIPS16e
+// Purpose: Sign-Extend Byte
+// Sign-extend least significant byte in register rx.
+//
+def SebRx16
+ : FRR_SF16_ins<0b10001, 0b100, "seb", IIAlu>;
+
+//
+// Format: SEH rx MIPS16e
+// Purpose: Sign-Extend Halfword
+// Sign-extend least significant word in register rx.
+//
+def SehRx16
+ : FRR_SF16_ins<0b10001, 0b101, "seh", IIAlu>;
+
+//
+// The Sel(T) instructions are pseudos
+// T means that they use T8 implicitly.
+//
+//
+// Format: SelBeqZ rd, rs, rt
+// Purpose: if rt==0, do nothing
+// else rs = rt
+//
+def SelBeqZ: Sel<"beqz">;
+
+//
+// Format: SelTBteqZCmp rd, rs, rl, rr
+// Purpose: b = Cmp rl, rr.
+// If b==0 then do nothing.
+// if b!=0 then rd = rs
+//
+def SelTBteqZCmp: SelT<"bteqz", "cmp">;
+
+//
+// Format: SelTBteqZCmpi rd, rs, rl, rr
+// Purpose: b = Cmpi rl, imm.
+// If b==0 then do nothing.
+// if b!=0 then rd = rs
+//
+def SelTBteqZCmpi: SeliT<"bteqz", "cmpi">;
+
+//
+// Format: SelTBteqZSlt rd, rs, rl, rr
+// Purpose: b = Slt rl, rr.
+// If b==0 then do nothing.
+// if b!=0 then rd = rs
+//
+def SelTBteqZSlt: SelT<"bteqz", "slt">;
//
-// Format: LW ry, offset(rx) MIPS16e
-// Purpose: Load Word (Extended)
-// To load a word from memory as a signed value.
+// Format: SelTBteqZSlti rd, rs, rl, rr
+// Purpose: b = Slti rl, imm.
+// If b==0 then do nothing.
+// if b!=0 then rd = rs
//
-def LwRxRyOffMemX16: FEXT_RRI16_mem_ins<0b10011, "lw", mem16, IIAlu>;
+def SelTBteqZSlti: SeliT<"bteqz", "slti">;
//
-// Format: MOVE r32, rz MIPS16e
-// Purpose: Move
-// To move the contents of a GPR to a GPR.
+// Format: SelTBteqZSltu rd, rs, rl, rr
+// Purpose: b = Sltu rl, rr.
+// If b==0 then do nothing.
+// if b!=0 then rd = rs
//
-def Mov32R16: FI8_MOV32R16_ins<"move", IIAlu>;
+def SelTBteqZSltu: SelT<"bteqz", "sltu">;
//
-// Format: NEG rx, ry MIPS16e
-// Purpose: Negate
-// To negate an integer value.
+// Format: SelTBteqZSltiu rd, rs, rl, rr
+// Purpose: b = Sltiu rl, imm.
+// If b==0 then do nothing.
+// if b!=0 then rd = rs
//
-def NegRxRy16: FRR16_ins<0b11101, "neg", IIAlu>;
+def SelTBteqZSltiu: SeliT<"bteqz", "sltiu">;
//
-// Format: NOT rx, ry MIPS16e
-// Purpose: Not
-// To complement an integer value
+// Format: SelBnez rd, rs, rt
+// Purpose: if rt!=0, do nothing
+// else rs = rt
//
-def NotRxRy16: FRR16_ins<0b01111, "not", IIAlu>;
+def SelBneZ: Sel<"bnez">;
//
-// Format: OR rx, ry MIPS16e
-// Purpose: Or
-// To do a bitwise logical OR.
+// Format: SelTBtneZCmp rd, rs, rl, rr
+// Purpose: b = Cmp rl, rr.
+// If b!=0 then do nothing.
+// if b0=0 then rd = rs
//
-def OrRxRxRy16: FRxRxRy16_ins<0b01101, "or", IIAlu>, ArithLogic16Defs<1>;
+def SelTBtneZCmp: SelT<"btnez", "cmp">;
//
-// Format: RESTORE {ra,}{s0/s1/s0-1,}{framesize}
-// (All args are optional) MIPS16e
-// Purpose: Restore Registers and Deallocate Stack Frame
-// To deallocate a stack frame before exit from a subroutine,
-// restoring return address and static registers, and adjusting
-// stack
+// Format: SelTBtnezCmpi rd, rs, rl, rr
+// Purpose: b = Cmpi rl, imm.
+// If b!=0 then do nothing.
+// if b==0 then rd = rs
//
+def SelTBtneZCmpi: SeliT<"btnez", "cmpi">;
-// fixed form for restoring RA and the frame
-// for direct object emitter, encoding needs to be adjusted for the
-// frame size
//
-let ra=1, s=0,s0=0,s1=0 in
-def RestoreRaF16:
- FI8_SVRS16<0b1, (outs), (ins uimm16:$frame_size),
- "restore \t$$ra, $frame_size", [], IILoad >;
+// Format: SelTBtneZSlt rd, rs, rl, rr
+// Purpose: b = Slt rl, rr.
+// If b!=0 then do nothing.
+// if b==0 then rd = rs
+//
+def SelTBtneZSlt: SelT<"btnez", "slt">;
//
-// Format: SAVE {ra,}{s0/s1/s0-1,}{framesize} (All arguments are optional)
-// MIPS16e
-// Purpose: Save Registers and Set Up Stack Frame
-// To set up a stack frame on entry to a subroutine,
-// saving return address and static registers, and adjusting stack
+// Format: SelTBtneZSlti rd, rs, rl, rr
+// Purpose: b = Slti rl, imm.
+// If b!=0 then do nothing.
+// if b==0 then rd = rs
//
-let ra=1, s=1,s0=0,s1=0 in
-def SaveRaF16:
- FI8_SVRS16<0b1, (outs), (ins uimm16:$frame_size),
- "save \t$$ra, $frame_size", [], IILoad >;
+def SelTBtneZSlti: SeliT<"btnez", "slti">;
//
-// Format: SB ry, offset(rx) MIPS16e
-// Purpose: Store Byte (Extended)
-// To store a byte to memory.
+// Format: SelTBtneZSltu rd, rs, rl, rr
+// Purpose: b = Sltu rl, rr.
+// If b!=0 then do nothing.
+// if b==0 then rd = rs
//
-def SbRxRyOffMemX16: FEXT_RRI16_mem2_ins<0b11000, "sb", mem16, IIAlu>;
+def SelTBtneZSltu: SelT<"btnez", "sltu">;
+//
+// Format: SelTBtneZSltiu rd, rs, rl, rr
+// Purpose: b = Slti rl, imm.
+// If b!=0 then do nothing.
+// if b==0 then rd = rs
+//
+def SelTBtneZSltiu: SeliT<"btnez", "sltiu">;
+//
//
// Format: SH ry, offset(rx) MIPS16e
// Purpose: Store Halfword (Extended)
// To store a halfword to memory.
//
-def ShRxRyOffMemX16: FEXT_RRI16_mem2_ins<0b11001, "sh", mem16, IIAlu>;
+def ShRxRyOffMemX16:
+ FEXT_RRI16_mem2_ins<0b11001, "sh", mem16, II_SH>, MayStore;
//
// Format: SLL rx, ry, sa MIPS16e
// Purpose: Shift Word Left Logical (Extended)
-// To execute a left-shift of a word by a fixed number of bits—0 to 31 bits.
+// To execute a left-shift of a word by a fixed number of bits-0 to 31 bits.
//
def SllX16: FEXT_SHIFT16_ins<0b00, "sll", IIAlu>;
//
def SllvRxRy16 : FRxRxRy16_ins<0b00100, "sllv", IIAlu>;
+// Format: SLTI rx, immediate MIPS16e
+// Purpose: Set on Less Than Immediate
+// To record the result of a less-than comparison with a constant.
+//
+//
+def SltiRxImm16: FRI16R_ins<0b01010, "slti", IIAlu> {
+ let Defs = [T8];
+}
+
+//
+// Format: SLTI rx, immediate MIPS16e
+// Purpose: Set on Less Than Immediate (Extended)
+// To record the result of a less-than comparison with a constant.
+//
+//
+def SltiRxImmX16: FEXT_RI16R_ins<0b01010, "slti", IIAlu> {
+ let Defs = [T8];
+}
+
+def SltiCCRxImmX16: FEXT_CCRXI16_ins<"slti">;
+
+// Format: SLTIU rx, immediate MIPS16e
+// Purpose: Set on Less Than Immediate Unsigned
+// To record the result of a less-than comparison with a constant.
+//
+//
+def SltiuRxImm16: FRI16R_ins<0b01011, "sltiu", IIAlu> {
+ let Defs = [T8];
+}
+
+//
+// Format: SLTI rx, immediate MIPS16e
+// Purpose: Set on Less Than Immediate Unsigned (Extended)
+// To record the result of a less-than comparison with a constant.
+//
+//
+def SltiuRxImmX16: FEXT_RI16R_ins<0b01011, "sltiu", IIAlu> {
+ let Defs = [T8];
+}
+//
+// Format: SLTIU rx, immediate MIPS16e
+// Purpose: Set on Less Than Immediate Unsigned (Extended)
+// To record the result of a less-than comparison with a constant.
+//
+def SltiuCCRxImmX16: FEXT_CCRXI16_ins<"sltiu">;
+
+//
+// Format: SLT rx, ry MIPS16e
+// Purpose: Set on Less Than
+// To record the result of a less-than comparison.
+//
+def SltRxRy16: FRR16R_ins<0b00010, "slt", IIAlu>{
+ let Defs = [T8];
+}
+
+def SltCCRxRy16: FCCRR16_ins<"slt">;
+
+// Format: SLTU rx, ry MIPS16e
+// Purpose: Set on Less Than Unsigned
+// To record the result of an unsigned less-than comparison.
+//
+def SltuRxRy16: FRR16R_ins<0b00011, "sltu", IIAlu>{
+ let Defs = [T8];
+}
+
+def SltuRxRyRz16: FRRTR16_ins<"sltu"> {
+ let isCodeGenOnly=1;
+ let Defs = [T8];
+}
+
+def SltuCCRxRy16: FCCRR16_ins<"sltu">;
//
// Format: SRAV ry, rx MIPS16e
// Purpose: Shift Word Right Arithmetic Variable
// Format: SRA rx, ry, sa MIPS16e
// Purpose: Shift Word Right Arithmetic (Extended)
// To execute an arithmetic right-shift of a word by a fixed
-// number of bits—1 to 8 bits.
+// number of bits-1 to 8 bits.
//
def SraX16: FEXT_SHIFT16_ins<0b11, "sra", IIAlu>;
// Format: SRL rx, ry, sa MIPS16e
// Purpose: Shift Word Right Logical (Extended)
// To execute a logical right-shift of a word by a fixed
-// number of bits—1 to 31 bits.
+// number of bits-1 to 31 bits.
//
def SrlX16: FEXT_SHIFT16_ins<0b10, "srl", IIAlu>;
// Purpose: Store Word (Extended)
// To store a word to memory.
//
-def SwRxRyOffMemX16: FEXT_RRI16_mem2_ins<0b11011, "sw", mem16, IIAlu>;
+def SwRxRyOffMemX16:
+ FEXT_RRI16_mem2_ins<0b11011, "sw", mem16, II_SW>, MayStore;
+
+//
+// Format: SW rx, offset(sp) MIPS16e
+// Purpose: Store Word rx (SP-Relative)
+// To store an SP-relative word to memory.
+//
+def SwRxSpImmX16: FEXT_RI16_SP_Store_explicit_ins
+ <0b11010, "sw", II_SW>, MayStore;
+//
//
// Format: XOR rx, ry MIPS16e
// Purpose: Xor
def: ArithLogic16_pat<add, AdduRxRyRz16>;
def: ArithLogic16_pat<and, AndRxRxRy16>;
+def: ArithLogic16_pat<mul, MultRxRyRz16>;
def: ArithLogic16_pat<or, OrRxRxRy16>;
def: ArithLogic16_pat<sub, SubuRxRyRz16>;
def: ArithLogic16_pat<xor, XorRxRxRy16>;
Mips16Pat<(OpNode CPU16Regs:$in, imm_type:$imm),
(I CPU16Regs:$in, imm_type:$imm)>;
+def: ArithLogicI16_pat<add, immSExt8, AddiuRxRxImm16>;
def: ArithLogicI16_pat<add, immSExt16, AddiuRxRxImmX16>;
def: ArithLogicI16_pat<shl, immZExt5, SllX16>;
def: ArithLogicI16_pat<srl, immZExt5, SrlX16>;
def: shift_rotate_reg16_pat<srl, SrlvRxRy16>;
class LoadM16_pat<PatFrag OpNode, Instruction I> :
- Mips16Pat<(OpNode addr:$addr), (I addr:$addr)>;
+ Mips16Pat<(OpNode addr16:$addr), (I addr16:$addr)>;
def: LoadM16_pat<sextloadi8, LbRxRyOffMemX16>;
def: LoadM16_pat<zextloadi8, LbuRxRyOffMemX16>;
-def: LoadM16_pat<sextloadi16_a, LhRxRyOffMemX16>;
-def: LoadM16_pat<zextloadi16_a, LhuRxRyOffMemX16>;
-def: LoadM16_pat<load_a, LwRxRyOffMemX16>;
+def: LoadM16_pat<sextloadi16, LhRxRyOffMemX16>;
+def: LoadM16_pat<zextloadi16, LhuRxRyOffMemX16>;
+def: LoadM16_pat<load, LwRxRyOffMemX16>;
class StoreM16_pat<PatFrag OpNode, Instruction I> :
- Mips16Pat<(OpNode CPU16Regs:$r, addr:$addr), (I CPU16Regs:$r, addr:$addr)>;
+ Mips16Pat<(OpNode CPU16Regs:$r, addr16:$addr),
+ (I CPU16Regs:$r, addr16:$addr)>;
def: StoreM16_pat<truncstorei8, SbRxRyOffMemX16>;
-def: StoreM16_pat<truncstorei16_a, ShRxRyOffMemX16>;
-def: StoreM16_pat<store_a, SwRxRyOffMemX16>;
-
+def: StoreM16_pat<truncstorei16, ShRxRyOffMemX16>;
+def: StoreM16_pat<store, SwRxRyOffMemX16>;
+
+// Unconditional branch
+class UncondBranch16_pat<SDNode OpNode, Instruction I>:
+ Mips16Pat<(OpNode bb:$imm16), (I bb:$imm16)> {
+ let Predicates = [InMips16Mode];
+ }
+
+def : Mips16Pat<(MipsJmpLink (i32 tglobaladdr:$dst)),
+ (Jal16 tglobaladdr:$dst)>;
+
+def : Mips16Pat<(MipsJmpLink (i32 texternalsym:$dst)),
+ (Jal16 texternalsym:$dst)>;
+
+// Indirect branch
+def: Mips16Pat<(brind CPU16Regs:$rs), (JrcRx16 CPU16Regs:$rs)> {
+ // Ensure that the addition of MIPS32r6/MIPS64r6 support does not change
+ // MIPS16's behaviour.
+ let AddedComplexity = 1;
+}
// Jump and Link (Call)
-let isCall=1, hasDelaySlot=1 in
+let isCall=1, hasDelaySlot=0 in
def JumpLinkReg16:
FRR16_JALRC<0, 0, 0, (outs), (ins CPU16Regs:$rs),
- "jalr \t$rs", [(MipsJmpLink CPU16Regs:$rs)], IIBranch>;
+ "jalrc \t$rs", [(MipsJmpLink CPU16Regs:$rs)], IIBranch> {
+ let Defs = [RA];
+}
// Mips16 pseudos
let isReturn=1, isTerminator=1, hasDelaySlot=1, isBarrier=1, hasCtrlDep=1,
hasExtraSrcRegAllocReq = 1 in
def RetRA16 : MipsPseudo16<(outs), (ins), "", [(MipsRet)]>;
+
+// setcc patterns
+
+class SetCC_R16<PatFrag cond_op, Instruction I>:
+ Mips16Pat<(cond_op CPU16Regs:$rx, CPU16Regs:$ry),
+ (I CPU16Regs:$rx, CPU16Regs:$ry)>;
+
+class SetCC_I16<PatFrag cond_op, PatLeaf imm_type, Instruction I>:
+ Mips16Pat<(cond_op CPU16Regs:$rx, imm_type:$imm16),
+ (I CPU16Regs:$rx, imm_type:$imm16)>;
+
+
+def: Mips16Pat<(i32 addr16:$addr),
+ (AddiuRxRyOffMemX16 addr16:$addr)>;
+
+
+// Large (>16 bit) immediate loads
+def : Mips16Pat<(i32 imm:$imm), (LwConstant32 imm:$imm, -1)>;
+
+// Carry MipsPatterns
+def : Mips16Pat<(subc CPU16Regs:$lhs, CPU16Regs:$rhs),
+ (SubuRxRyRz16 CPU16Regs:$lhs, CPU16Regs:$rhs)>;
+def : Mips16Pat<(addc CPU16Regs:$lhs, CPU16Regs:$rhs),
+ (AdduRxRyRz16 CPU16Regs:$lhs, CPU16Regs:$rhs)>;
+def : Mips16Pat<(addc CPU16Regs:$src, immSExt16:$imm),
+ (AddiuRxRxImmX16 CPU16Regs:$src, imm:$imm)>;
+
+//
+// Some branch conditional patterns are not generated by llvm at this time.
+// Some are for seemingly arbitrary reasons not used: i.e. with signed number
+// comparison they are used and for unsigned a different pattern is used.
+// I am pushing upstream from the full mips16 port and it seemed that I needed
+// these earlier and the mips32 port has these but now I cannot create test
+// cases that use these patterns. While I sort this all out I will leave these
+// extra patterns commented out and if I can be sure they are really not used,
+// I will delete the code. I don't want to check the code in uncommented without
+// a valid test case. In some cases, the compiler is generating patterns with
+// setcc instead and earlier I had implemented setcc first so may have masked
+// the problem. The setcc variants are suboptimal for mips16 so I may wantto
+// figure out how to enable the brcond patterns or else possibly new
+// combinations of of brcond and setcc.
+//
+//
+// bcond-seteq
+//
+def: Mips16Pat
+ <(brcond (i32 (seteq CPU16Regs:$rx, CPU16Regs:$ry)), bb:$imm16),
+ (BteqzT8CmpX16 CPU16Regs:$rx, CPU16Regs:$ry, bb:$imm16)
+ >;
+
+
+def: Mips16Pat
+ <(brcond (i32 (seteq CPU16Regs:$rx, immZExt16:$imm)), bb:$targ16),
+ (BteqzT8CmpiX16 CPU16Regs:$rx, immSExt16:$imm, bb:$targ16)
+ >;
+
+def: Mips16Pat
+ <(brcond (i32 (seteq CPU16Regs:$rx, 0)), bb:$targ16),
+ (BeqzRxImm16 CPU16Regs:$rx, bb:$targ16)
+ >;
+
+//
+// bcond-setgt (do we need to have this pair of setlt, setgt??)
+//
+def: Mips16Pat
+ <(brcond (i32 (setgt CPU16Regs:$rx, CPU16Regs:$ry)), bb:$imm16),
+ (BtnezT8SltX16 CPU16Regs:$ry, CPU16Regs:$rx, bb:$imm16)
+ >;
+
+//
+// bcond-setge
+//
+def: Mips16Pat
+ <(brcond (i32 (setge CPU16Regs:$rx, CPU16Regs:$ry)), bb:$imm16),
+ (BteqzT8SltX16 CPU16Regs:$rx, CPU16Regs:$ry, bb:$imm16)
+ >;
+
+//
+// never called because compiler transforms a >= k to a > (k-1)
+def: Mips16Pat
+ <(brcond (i32 (setge CPU16Regs:$rx, immSExt16:$imm)), bb:$imm16),
+ (BteqzT8SltiX16 CPU16Regs:$rx, immSExt16:$imm, bb:$imm16)
+ >;
+
+//
+// bcond-setlt
+//
+def: Mips16Pat
+ <(brcond (i32 (setlt CPU16Regs:$rx, CPU16Regs:$ry)), bb:$imm16),
+ (BtnezT8SltX16 CPU16Regs:$rx, CPU16Regs:$ry, bb:$imm16)
+ >;
+
+def: Mips16Pat
+ <(brcond (i32 (setlt CPU16Regs:$rx, immSExt16:$imm)), bb:$imm16),
+ (BtnezT8SltiX16 CPU16Regs:$rx, immSExt16:$imm, bb:$imm16)
+ >;
+
+//
+// bcond-setle
+//
+def: Mips16Pat
+ <(brcond (i32 (setle CPU16Regs:$rx, CPU16Regs:$ry)), bb:$imm16),
+ (BteqzT8SltX16 CPU16Regs:$ry, CPU16Regs:$rx, bb:$imm16)
+ >;
+
+//
+// bcond-setne
+//
+def: Mips16Pat
+ <(brcond (i32 (setne CPU16Regs:$rx, CPU16Regs:$ry)), bb:$imm16),
+ (BtnezT8CmpX16 CPU16Regs:$rx, CPU16Regs:$ry, bb:$imm16)
+ >;
+
+def: Mips16Pat
+ <(brcond (i32 (setne CPU16Regs:$rx, immZExt16:$imm)), bb:$targ16),
+ (BtnezT8CmpiX16 CPU16Regs:$rx, immSExt16:$imm, bb:$targ16)
+ >;
+
+def: Mips16Pat
+ <(brcond (i32 (setne CPU16Regs:$rx, 0)), bb:$targ16),
+ (BnezRxImm16 CPU16Regs:$rx, bb:$targ16)
+ >;
+
+//
+// This needs to be there but I forget which code will generate it
+//
+def: Mips16Pat
+ <(brcond CPU16Regs:$rx, bb:$targ16),
+ (BnezRxImm16 CPU16Regs:$rx, bb:$targ16)
+ >;
+
+//
+
+//
+// bcond-setugt
+//
+//def: Mips16Pat
+// <(brcond (i32 (setugt CPU16Regs:$rx, CPU16Regs:$ry)), bb:$imm16),
+// (BtnezT8SltuX16 CPU16Regs:$ry, CPU16Regs:$rx, bb:$imm16)
+// >;
+
+//
+// bcond-setuge
+//
+//def: Mips16Pat
+// <(brcond (i32 (setuge CPU16Regs:$rx, CPU16Regs:$ry)), bb:$imm16),
+// (BteqzT8SltuX16 CPU16Regs:$rx, CPU16Regs:$ry, bb:$imm16)
+// >;
+
+
+//
+// bcond-setult
+//
+//def: Mips16Pat
+// <(brcond (i32 (setult CPU16Regs:$rx, CPU16Regs:$ry)), bb:$imm16),
+// (BtnezT8SltuX16 CPU16Regs:$rx, CPU16Regs:$ry, bb:$imm16)
+// >;
+
+def: UncondBranch16_pat<br, Bimm16>;
+
// Small immediates
+def: Mips16Pat<(i32 immSExt16:$in),
+ (AddiuRxRxImmX16 (Move32R16 ZERO), immSExt16:$in)>;
+
def: Mips16Pat<(i32 immZExt16:$in), (LiRxImmX16 immZExt16:$in)>;
+//
+// MipsDivRem
+//
+def: Mips16Pat
+ <(MipsDivRem16 CPU16Regs:$rx, CPU16Regs:$ry),
+ (DivRxRy16 CPU16Regs:$rx, CPU16Regs:$ry)>;
+
+//
+// MipsDivRemU
+//
+def: Mips16Pat
+ <(MipsDivRemU16 CPU16Regs:$rx, CPU16Regs:$ry),
+ (DivuRxRy16 CPU16Regs:$rx, CPU16Regs:$ry)>;
+
+// signed a,b
+// x = (a>=b)?x:y
+//
+// if !(a < b) x = y
+//
+def : Mips16Pat<(select (i32 (setge CPU16Regs:$a, CPU16Regs:$b)),
+ CPU16Regs:$x, CPU16Regs:$y),
+ (SelTBteqZSlt CPU16Regs:$x, CPU16Regs:$y,
+ CPU16Regs:$a, CPU16Regs:$b)>;
+
+// signed a,b
+// x = (a>b)?x:y
+//
+// if (b < a) x = y
+//
+def : Mips16Pat<(select (i32 (setgt CPU16Regs:$a, CPU16Regs:$b)),
+ CPU16Regs:$x, CPU16Regs:$y),
+ (SelTBtneZSlt CPU16Regs:$x, CPU16Regs:$y,
+ CPU16Regs:$b, CPU16Regs:$a)>;
+
+// unsigned a,b
+// x = (a>=b)?x:y
+//
+// if !(a < b) x = y;
+//
+def : Mips16Pat<
+ (select (i32 (setuge CPU16Regs:$a, CPU16Regs:$b)),
+ CPU16Regs:$x, CPU16Regs:$y),
+ (SelTBteqZSltu CPU16Regs:$x, CPU16Regs:$y,
+ CPU16Regs:$a, CPU16Regs:$b)>;
+
+// unsigned a,b
+// x = (a>b)?x:y
+//
+// if (b < a) x = y
+//
+def : Mips16Pat<(select (i32 (setugt CPU16Regs:$a, CPU16Regs:$b)),
+ CPU16Regs:$x, CPU16Regs:$y),
+ (SelTBtneZSltu CPU16Regs:$x, CPU16Regs:$y,
+ CPU16Regs:$b, CPU16Regs:$a)>;
+
+// signed
+// x = (a >= k)?x:y
+// due to an llvm optimization, i don't think that this will ever
+// be used. This is transformed into x = (a > k-1)?x:y
+//
+//
+
+//def : Mips16Pat<
+// (select (i32 (setge CPU16Regs:$lhs, immSExt16:$rhs)),
+// CPU16Regs:$T, CPU16Regs:$F),
+// (SelTBteqZSlti CPU16Regs:$T, CPU16Regs:$F,
+// CPU16Regs:$lhs, immSExt16:$rhs)>;
+
+//def : Mips16Pat<
+// (select (i32 (setuge CPU16Regs:$lhs, immSExt16:$rhs)),
+// CPU16Regs:$T, CPU16Regs:$F),
+// (SelTBteqZSltiu CPU16Regs:$T, CPU16Regs:$F,
+// CPU16Regs:$lhs, immSExt16:$rhs)>;
+
+// signed
+// x = (a < k)?x:y
+//
+// if !(a < k) x = y;
+//
+def : Mips16Pat<
+ (select (i32 (setlt CPU16Regs:$a, immSExt16:$b)),
+ CPU16Regs:$x, CPU16Regs:$y),
+ (SelTBtneZSlti CPU16Regs:$x, CPU16Regs:$y,
+ CPU16Regs:$a, immSExt16:$b)>;
+
+
+//
+//
+// signed
+// x = (a <= b)? x : y
+//
+// if (b < a) x = y
+//
+def : Mips16Pat<(select (i32 (setle CPU16Regs:$a, CPU16Regs:$b)),
+ CPU16Regs:$x, CPU16Regs:$y),
+ (SelTBteqZSlt CPU16Regs:$x, CPU16Regs:$y,
+ CPU16Regs:$b, CPU16Regs:$a)>;
+
+//
+// unnsigned
+// x = (a <= b)? x : y
+//
+// if (b < a) x = y
+//
+def : Mips16Pat<(select (i32 (setule CPU16Regs:$a, CPU16Regs:$b)),
+ CPU16Regs:$x, CPU16Regs:$y),
+ (SelTBteqZSltu CPU16Regs:$x, CPU16Regs:$y,
+ CPU16Regs:$b, CPU16Regs:$a)>;
+
+//
+// signed/unsigned
+// x = (a == b)? x : y
+//
+// if (a != b) x = y
+//
+def : Mips16Pat<(select (i32 (seteq CPU16Regs:$a, CPU16Regs:$b)),
+ CPU16Regs:$x, CPU16Regs:$y),
+ (SelTBteqZCmp CPU16Regs:$x, CPU16Regs:$y,
+ CPU16Regs:$b, CPU16Regs:$a)>;
+
+//
+// signed/unsigned
+// x = (a == 0)? x : y
+//
+// if (a != 0) x = y
+//
+def : Mips16Pat<(select (i32 (seteq CPU16Regs:$a, 0)),
+ CPU16Regs:$x, CPU16Regs:$y),
+ (SelBeqZ CPU16Regs:$x, CPU16Regs:$y,
+ CPU16Regs:$a)>;
+
+
+//
+// signed/unsigned
+// x = (a == k)? x : y
+//
+// if (a != k) x = y
+//
+def : Mips16Pat<(select (i32 (seteq CPU16Regs:$a, immZExt16:$k)),
+ CPU16Regs:$x, CPU16Regs:$y),
+ (SelTBteqZCmpi CPU16Regs:$x, CPU16Regs:$y,
+ CPU16Regs:$a, immZExt16:$k)>;
+
+
+//
+// signed/unsigned
+// x = (a != b)? x : y
+//
+// if (a == b) x = y
+//
+//
+def : Mips16Pat<(select (i32 (setne CPU16Regs:$a, CPU16Regs:$b)),
+ CPU16Regs:$x, CPU16Regs:$y),
+ (SelTBtneZCmp CPU16Regs:$x, CPU16Regs:$y,
+ CPU16Regs:$b, CPU16Regs:$a)>;
+
+//
+// signed/unsigned
+// x = (a != 0)? x : y
+//
+// if (a == 0) x = y
+//
+def : Mips16Pat<(select (i32 (setne CPU16Regs:$a, 0)),
+ CPU16Regs:$x, CPU16Regs:$y),
+ (SelBneZ CPU16Regs:$x, CPU16Regs:$y,
+ CPU16Regs:$a)>;
+
+// signed/unsigned
+// x = (a)? x : y
+//
+// if (!a) x = y
+//
+def : Mips16Pat<(select CPU16Regs:$a,
+ CPU16Regs:$x, CPU16Regs:$y),
+ (SelBneZ CPU16Regs:$x, CPU16Regs:$y,
+ CPU16Regs:$a)>;
+
+
+//
+// signed/unsigned
+// x = (a != k)? x : y
+//
+// if (a == k) x = y
+//
+def : Mips16Pat<(select (i32 (setne CPU16Regs:$a, immZExt16:$k)),
+ CPU16Regs:$x, CPU16Regs:$y),
+ (SelTBtneZCmpi CPU16Regs:$x, CPU16Regs:$y,
+ CPU16Regs:$a, immZExt16:$k)>;
+
+//
+// When writing C code to test setxx these patterns,
+// some will be transformed into
+// other things. So we test using C code but using -O3 and -O0
+//
+// seteq
+//
+def : Mips16Pat
+ <(seteq CPU16Regs:$lhs,CPU16Regs:$rhs),
+ (SltiuCCRxImmX16 (XorRxRxRy16 CPU16Regs:$lhs, CPU16Regs:$rhs), 1)>;
+
+def : Mips16Pat
+ <(seteq CPU16Regs:$lhs, 0),
+ (SltiuCCRxImmX16 CPU16Regs:$lhs, 1)>;
+
+
+//
+// setge
+//
+
+def: Mips16Pat
+ <(setge CPU16Regs:$lhs, CPU16Regs:$rhs),
+ (XorRxRxRy16 (SltCCRxRy16 CPU16Regs:$lhs, CPU16Regs:$rhs),
+ (LiRxImmX16 1))>;
+
+//
+// For constants, llvm transforms this to:
+// x > (k - 1) and then reverses the operands to use setlt. So this pattern
+// is not used now by the compiler. (Presumably checking that k-1 does not
+// overflow). The compiler never uses this at the current time, due to
+// other optimizations.
+//
+//def: Mips16Pat
+// <(setge CPU16Regs:$lhs, immSExt16:$rhs),
+// (XorRxRxRy16 (SltiCCRxImmX16 CPU16Regs:$lhs, immSExt16:$rhs),
+// (LiRxImmX16 1))>;
+
+// This catches the x >= -32768 case by transforming it to x > -32769
+//
+def: Mips16Pat
+ <(setgt CPU16Regs:$lhs, -32769),
+ (XorRxRxRy16 (SltiCCRxImmX16 CPU16Regs:$lhs, -32768),
+ (LiRxImmX16 1))>;
+
+//
+// setgt
+//
+//
+
+def: Mips16Pat
+ <(setgt CPU16Regs:$lhs, CPU16Regs:$rhs),
+ (SltCCRxRy16 CPU16Regs:$rhs, CPU16Regs:$lhs)>;
+
+//
+// setle
+//
+def: Mips16Pat
+ <(setle CPU16Regs:$lhs, CPU16Regs:$rhs),
+ (XorRxRxRy16 (SltCCRxRy16 CPU16Regs:$rhs, CPU16Regs:$lhs), (LiRxImm16 1))>;
+
+//
+// setlt
+//
+def: SetCC_R16<setlt, SltCCRxRy16>;
+
+def: SetCC_I16<setlt, immSExt16, SltiCCRxImmX16>;
+
+//
+// setne
+//
+def : Mips16Pat
+ <(setne CPU16Regs:$lhs,CPU16Regs:$rhs),
+ (SltuCCRxRy16 (LiRxImmX16 0),
+ (XorRxRxRy16 CPU16Regs:$lhs, CPU16Regs:$rhs))>;
+
+
+//
+// setuge
+//
+def: Mips16Pat
+ <(setuge CPU16Regs:$lhs, CPU16Regs:$rhs),
+ (XorRxRxRy16 (SltuCCRxRy16 CPU16Regs:$lhs, CPU16Regs:$rhs),
+ (LiRxImmX16 1))>;
+
+// this pattern will never be used because the compiler will transform
+// x >= k to x > (k - 1) and then use SLT
+//
+//def: Mips16Pat
+// <(setuge CPU16Regs:$lhs, immZExt16:$rhs),
+// (XorRxRxRy16 (SltiuCCRxImmX16 CPU16Regs:$lhs, immZExt16:$rhs),
+// (LiRxImmX16 1))>;
+
+//
+// setugt
+//
+def: Mips16Pat
+ <(setugt CPU16Regs:$lhs, CPU16Regs:$rhs),
+ (SltuCCRxRy16 CPU16Regs:$rhs, CPU16Regs:$lhs)>;
+
+//
+// setule
+//
+def: Mips16Pat
+ <(setule CPU16Regs:$lhs, CPU16Regs:$rhs),
+ (XorRxRxRy16 (SltuCCRxRy16 CPU16Regs:$rhs, CPU16Regs:$lhs), (LiRxImmX16 1))>;
+
+//
+// setult
+//
+def: SetCC_R16<setult, SltuCCRxRy16>;
+
+def: SetCC_I16<setult, immSExt16, SltiuCCRxImmX16>;
+
def: Mips16Pat<(add CPU16Regs:$hi, (MipsLo tglobaladdr:$lo)),
(AddiuRxRxImmX16 CPU16Regs:$hi, tglobaladdr:$lo)>;
+
+// hi/lo relocs
+def : Mips16Pat<(MipsHi tblockaddress:$in),
+ (SllX16 (LiRxImmX16 tblockaddress:$in), 16)>;
+def : Mips16Pat<(MipsHi tglobaladdr:$in),
+ (SllX16 (LiRxImmX16 tglobaladdr:$in), 16)>;
+def : Mips16Pat<(MipsHi tjumptable:$in),
+ (SllX16 (LiRxImmX16 tjumptable:$in), 16)>;
+def : Mips16Pat<(MipsHi tglobaltlsaddr:$in),
+ (SllX16 (LiRxImmX16 tglobaltlsaddr:$in), 16)>;
+
+def : Mips16Pat<(MipsLo tblockaddress:$in), (LiRxImmX16 tblockaddress:$in)>;
+
+// wrapper_pic
+class Wrapper16Pat<SDNode node, Instruction ADDiuOp, RegisterClass RC>:
+ Mips16Pat<(MipsWrapper RC:$gp, node:$in),
+ (ADDiuOp RC:$gp, node:$in)>;
+
+
+def : Wrapper16Pat<tglobaladdr, AddiuRxRxImmX16, CPU16Regs>;
+def : Wrapper16Pat<tglobaltlsaddr, AddiuRxRxImmX16, CPU16Regs>;
+
+def : Mips16Pat<(i32 (extloadi8 addr16:$src)),
+ (LbuRxRyOffMemX16 addr16:$src)>;
+def : Mips16Pat<(i32 (extloadi16 addr16:$src)),
+ (LhuRxRyOffMemX16 addr16:$src)>;
+
+def: Mips16Pat<(trap), (Break16)>;
+
+def : Mips16Pat<(sext_inreg CPU16Regs:$val, i8),
+ (SebRx16 CPU16Regs:$val)>;
+
+def : Mips16Pat<(sext_inreg CPU16Regs:$val, i16),
+ (SehRx16 CPU16Regs:$val)>;
+
+def GotPrologue16:
+ MipsPseudo16<
+ (outs CPU16Regs:$rh, CPU16Regs:$rl),
+ (ins simm16:$immHi, simm16:$immLo),
+ "li\t$rh, $immHi\n\taddiu\t$rl, $$pc, $immLo\n ",[]> ;
+
+// An operand for the CONSTPOOL_ENTRY pseudo-instruction.
+def cpinst_operand : Operand<i32> {
+ // let PrintMethod = "printCPInstOperand";
+}
+
+// CONSTPOOL_ENTRY - This instruction represents a floating constant pool in
+// the function. The first operand is the ID# for this instruction, the second
+// is the index into the MachineConstantPool that this is, the third is the
+// size in bytes of this constant pool entry.
+//
+let neverHasSideEffects = 1, isNotDuplicable = 1 in
+def CONSTPOOL_ENTRY :
+MipsPseudo16<(outs), (ins cpinst_operand:$instid, cpinst_operand:$cpidx,
+ i32imm:$size), "foo", []>;
+
projects / oota-llvm.git / blobdiff