-//===- ARMInstrThumb.td - Thumb support for ARM ---------------------------===//
+//===- ARMInstrThumb.td - Thumb support for ARM ------------*- tablegen -*-===//
//
// The LLVM Compiler Infrastructure
//
return Val >= 8 && Val < 256;
}], imm_neg_XFORM>;
-// Break imm's up into two pieces: an immediate + a left shift.
-// This uses thumb_immshifted to match and thumb_immshifted_val and
-// thumb_immshifted_shamt to get the val/shift pieces.
+// Break imm's up into two pieces: an immediate + a left shift. This uses
+// thumb_immshifted to match and thumb_immshifted_val and thumb_immshifted_shamt
+// to get the val/shift pieces.
def thumb_immshifted : PatLeaf<(imm), [{
return ARM_AM::isThumbImmShiftedVal((unsigned)N->getZExtValue());
}]>;
// Define Thumb specific addressing modes.
+def t_brtarget : Operand<OtherVT> {
+ let EncoderMethod = "getThumbBRTargetOpValue";
+}
+
+def t_bcctarget : Operand<i32> {
+ let EncoderMethod = "getThumbBCCTargetOpValue";
+}
+
+def t_cbtarget : Operand<i32> {
+ let EncoderMethod = "getThumbCBTargetOpValue";
+}
+
+def t_bltarget : Operand<i32> {
+ let EncoderMethod = "getThumbBLTargetOpValue";
+}
+
+def t_blxtarget : Operand<i32> {
+ let EncoderMethod = "getThumbBLXTargetOpValue";
+}
+
+def MemModeThumbAsmOperand : AsmOperandClass {
+ let Name = "MemModeThumb";
+ let SuperClasses = [];
+}
+
// t_addrmode_rr := reg + reg
//
def t_addrmode_rr : Operand<i32>,
//
def t_addrmode_s4 : Operand<i32>,
ComplexPattern<i32, 3, "SelectThumbAddrModeS4", []> {
+ let EncoderMethod = "getAddrModeSOpValue";
let PrintMethod = "printThumbAddrModeS4Operand";
let MIOperandInfo = (ops tGPR:$base, i32imm:$offsimm, tGPR:$offsreg);
+ let ParserMatchClass = MemModeThumbAsmOperand;
}
// t_addrmode_s2 := reg + reg
//
def t_addrmode_s2 : Operand<i32>,
ComplexPattern<i32, 3, "SelectThumbAddrModeS2", []> {
+ let EncoderMethod = "getAddrModeSOpValue";
let PrintMethod = "printThumbAddrModeS2Operand";
let MIOperandInfo = (ops tGPR:$base, i32imm:$offsimm, tGPR:$offsreg);
+ let ParserMatchClass = MemModeThumbAsmOperand;
}
// t_addrmode_s1 := reg + reg
//
def t_addrmode_s1 : Operand<i32>,
ComplexPattern<i32, 3, "SelectThumbAddrModeS1", []> {
+ let EncoderMethod = "getAddrModeSOpValue";
let PrintMethod = "printThumbAddrModeS1Operand";
let MIOperandInfo = (ops tGPR:$base, i32imm:$offsimm, tGPR:$offsreg);
+ let ParserMatchClass = MemModeThumbAsmOperand;
}
// t_addrmode_sp := sp + imm8 * 4
//
def t_addrmode_sp : Operand<i32>,
ComplexPattern<i32, 2, "SelectThumbAddrModeSP", []> {
+ let EncoderMethod = "getAddrModeThumbSPOpValue";
let PrintMethod = "printThumbAddrModeSPOperand";
let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
+ let ParserMatchClass = MemModeThumbAsmOperand;
+}
+
+// t_addrmode_pc := <label> => pc + imm8 * 4
+//
+def t_addrmode_pc : Operand<i32> {
+ let EncoderMethod = "getAddrModePCOpValue";
+ let ParserMatchClass = MemModeThumbAsmOperand;
}
//===----------------------------------------------------------------------===//
Requires<[IsThumb, IsThumb1Only]>;
}
+// T1Disassembly - A simple class to make encoding some disassembly patterns
+// easier and less verbose.
+class T1Disassembly<bits<2> op1, bits<8> op2>
+ : T1Encoding<0b101111> {
+ let Inst{9-8} = op1;
+ let Inst{7-0} = op2;
+}
+
def tNOP : T1pI<(outs), (ins), NoItinerary, "nop", "",
[/* For disassembly only; pattern left blank */]>,
- T1Encoding<0b101111> {
- let Inst{9-8} = 0b11;
- let Inst{7-0} = 0x00;
-}
+ T1Disassembly<0b11, 0x00>; // A8.6.110
def tYIELD : T1pI<(outs), (ins), NoItinerary, "yield", "",
[/* For disassembly only; pattern left blank */]>,
- T1Encoding<0b101111> {
- let Inst{9-8} = 0b11;
- let Inst{7-0} = 0x10;
-}
+ T1Disassembly<0b11, 0x10>; // A8.6.410
def tWFE : T1pI<(outs), (ins), NoItinerary, "wfe", "",
[/* For disassembly only; pattern left blank */]>,
- T1Encoding<0b101111> {
- let Inst{9-8} = 0b11;
- let Inst{7-0} = 0x20;
-}
+ T1Disassembly<0b11, 0x20>; // A8.6.408
def tWFI : T1pI<(outs), (ins), NoItinerary, "wfi", "",
[/* For disassembly only; pattern left blank */]>,
- T1Encoding<0b101111> {
- let Inst{9-8} = 0b11;
- let Inst{7-0} = 0x30;
-}
+ T1Disassembly<0b11, 0x30>; // A8.6.409
def tSEV : T1pI<(outs), (ins), NoItinerary, "sev", "",
[/* For disassembly only; pattern left blank */]>,
- T1Encoding<0b101111> {
- let Inst{9-8} = 0b11;
- let Inst{7-0} = 0x40;
-}
+ T1Disassembly<0b11, 0x40>; // A8.6.157
+
+// The i32imm operand $val can be used by a debugger to store more information
+// about the breakpoint.
+def tBKPT : T1I<(outs), (ins i32imm:$val), NoItinerary, "bkpt\t$val",
+ [/* For disassembly only; pattern left blank */]>,
+ T1Disassembly<0b10, {?,?,?,?,?,?,?,?}> {
+ // A8.6.22
+ bits<8> val;
+ let Inst{7-0} = val;
+}
def tSETENDBE : T1I<(outs), (ins), NoItinerary, "setend\tbe",
[/* For disassembly only; pattern left blank */]>,
T1Encoding<0b101101> {
+ // A8.6.156
let Inst{9-5} = 0b10010;
let Inst{4} = 1;
let Inst{3} = 1; // Big-Endian
def tSETENDLE : T1I<(outs), (ins), NoItinerary, "setend\tle",
[/* For disassembly only; pattern left blank */]>,
T1Encoding<0b101101> {
+ // A8.6.156
let Inst{9-5} = 0b10010;
let Inst{4} = 1;
let Inst{3} = 0; // Little-Endian
let Inst{2-0} = 0b000;
}
-// The i32imm operand $val can be used by a debugger to store more information
-// about the breakpoint.
-def tBKPT : T1I<(outs), (ins i32imm:$val), NoItinerary, "bkpt\t$imm8",
- [/* For disassembly only; pattern left blank */]>,
- T1Encoding<0b101111> {
- bits<8> imm8;
- let Inst{9-8} = 0b10;
- let Inst{7-0} = imm8;
-}
-
// Change Processor State is a system instruction -- for disassembly only.
// The singleton $opt operand contains the following information:
-// opt{4-0} = mode ==> don't care
-// opt{5} = changemode ==> 0 (false for 16-bit Thumb instr)
-// opt{8-6} = AIF from Inst{2-0}
-// opt{10-9} = 1:imod from Inst{4} with 0b10 as enable and 0b11 as disable
+//
+// opt{4-0} = mode ==> don't care
+// opt{5} = changemode ==> 0 (false for 16-bit Thumb instr)
+// opt{8-6} = AIF from Inst{2-0}
+// opt{10-9} = 1:imod from Inst{4} with 0b10 as enable and 0b11 as disable
//
// The opt{4-0} and opt{5} sub-fields are to accommodate 32-bit Thumb and ARM
// CPS which has more options.
def tCPS : T1I<(outs), (ins cps_opt:$opt), NoItinerary, "cps$opt",
[/* For disassembly only; pattern left blank */]>,
- T1Misc<0b0110011>;
+ T1Misc<0b0110011> {
+ // A8.6.38 & B6.1.1
+ let Inst{3} = 0;
+ // FIXME: Finish encoding.
+}
// For both thumb1 and thumb2.
let isNotDuplicable = 1, isCodeGenOnly = 1 in
def tPICADD : TIt<(outs GPR:$dst), (ins GPR:$lhs, pclabel:$cp), IIC_iALUr, "",
- [(set GPR:$dst, (ARMpic_add GPR:$lhs, imm:$cp))]>,
+ [(set GPR:$dst, (ARMpic_add GPR:$lhs, imm:$cp))]>,
T1Special<{0,0,?,?}> {
- let Inst{6-3} = 0b1111; // A8.6.6 Rm = pc
+ // A8.6.6
+ bits<3> dst;
+ let Inst{6-3} = 0b1111; // Rm = pc
+ let Inst{2-0} = dst;
}
-// PC relative add.
+// PC relative add (ADR).
def tADDrPCi : T1I<(outs tGPR:$dst), (ins t_imm_s4:$rhs), IIC_iALUi,
- "add\t$dst, pc, $rhs", []>,
- T1Encoding<{1,0,1,0,0,?}>; // A6.2 & A8.6.10
+ "add\t$dst, pc, $rhs", []>,
+ T1Encoding<{1,0,1,0,0,?}> {
+ // A6.2 & A8.6.10
+ bits<3> dst;
+ bits<8> rhs;
+ let Inst{10-8} = dst;
+ let Inst{7-0} = rhs;
+}
-// ADD rd, sp, #imm8
+// ADD <Rd>, sp, #<imm8>
// This is rematerializable, which is particularly useful for taking the
// address of locals.
-let isReMaterializable = 1 in {
+let isReMaterializable = 1 in
def tADDrSPi : T1I<(outs tGPR:$dst), (ins GPR:$sp, t_imm_s4:$rhs), IIC_iALUi,
- "add\t$dst, $sp, $rhs", []>,
- T1Encoding<{1,0,1,0,1,?}>; // A6.2 & A8.6.8
+ "add\t$dst, $sp, $rhs", []>,
+ T1Encoding<{1,0,1,0,1,?}> {
+ // A6.2 & A8.6.8
+ bits<3> dst;
+ bits<8> rhs;
+ let Inst{10-8} = dst;
+ let Inst{7-0} = rhs;
}
-// ADD sp, sp, #imm7
+// ADD sp, sp, #<imm7>
def tADDspi : TIt<(outs GPR:$dst), (ins GPR:$lhs, t_imm_s4:$rhs), IIC_iALUi,
"add\t$dst, $rhs", []>,
- T1Misc<{0,0,0,0,0,?,?}>; // A6.2.5 & A8.6.8
+ T1Misc<{0,0,0,0,0,?,?}> {
+ // A6.2.5 & A8.6.8
+ bits<7> rhs;
+ let Inst{6-0} = rhs;
+}
-// SUB sp, sp, #imm7
+// SUB sp, sp, #<imm7>
+// FIXME: The encoding and the ASM string don't match up.
def tSUBspi : TIt<(outs GPR:$dst), (ins GPR:$lhs, t_imm_s4:$rhs), IIC_iALUi,
"sub\t$dst, $rhs", []>,
- T1Misc<{0,0,0,0,1,?,?}>; // A6.2.5 & A8.6.215
+ T1Misc<{0,0,0,0,1,?,?}> {
+ // A6.2.5 & A8.6.214
+ bits<7> rhs;
+ let Inst{6-0} = rhs;
+}
-// ADD rm, sp
+// ADD <Rm>, sp
def tADDrSP : TIt<(outs GPR:$dst), (ins GPR:$lhs, GPR:$rhs), IIC_iALUr,
"add\t$dst, $rhs", []>,
T1Special<{0,0,?,?}> {
- let Inst{6-3} = 0b1101; // A8.6.9 Encoding T1
+ // A8.6.9 Encoding T1
+ bits<4> dst;
+ let Inst{7} = dst{3};
+ let Inst{6-3} = 0b1101;
+ let Inst{2-0} = dst{2-0};
}
-// ADD sp, rm
+// ADD sp, <Rm>
def tADDspr : TIt<(outs GPR:$dst), (ins GPR:$lhs, GPR:$rhs), IIC_iALUr,
"add\t$dst, $rhs", []>,
T1Special<{0,0,?,?}> {
// A8.6.9 Encoding T2
+ bits<4> dst;
let Inst{7} = 1;
+ let Inst{6-3} = dst;
let Inst{2-0} = 0b101;
}
let isReturn = 1, isTerminator = 1, isBarrier = 1 in {
def tBX_RET : TI<(outs), (ins), IIC_Br, "bx\tlr",
[(ARMretflag)]>,
- T1Special<{1,1,0,?}> { // A6.2.3 & A8.6.25
+ T1Special<{1,1,0,?}> {
+ // A6.2.3 & A8.6.25
let Inst{6-3} = 0b1110; // Rm = lr
let Inst{2-0} = 0b000;
}
def tBX_RET_vararg : TI<(outs), (ins tGPR:$Rm),
IIC_Br, "bx\t$Rm",
[]>,
- T1Special<{1,1,0,?}> { // A6.2.3 & A8.6.25
+ T1Special<{1,1,0,?}> {
+ // A6.2.3 & A8.6.25
bits<4> Rm;
let Inst{6-3} = Rm;
let Inst{2-0} = 0b000;
// Indirect branches
let isBranch = 1, isTerminator = 1, isBarrier = 1, isIndirectBranch = 1 in {
- def tBRIND : TI<(outs), (ins GPR:$Rm), IIC_Br, "mov\tpc, $Rm",
+ def tBRIND : TI<(outs), (ins GPR:$Rm),
+ IIC_Br,
+ "mov\tpc, $Rm",
[(brind GPR:$Rm)]>,
- T1Special<{1,0,1,?}> {
+ T1Special<{1,0,?,?}> {
+ // A8.6.97
bits<4> Rm;
-
+ let Inst{7} = 1; // <Rd> = Inst{7:2-0} = pc
let Inst{6-3} = Rm;
- let Inst{2-0} = 0b111; // <Rd> = Inst{7:2-0} = pc
+ let Inst{2-0} = 0b111;
}
}
IIC_iPop_Br,
"pop${p}\t$regs", []>,
T1Misc<{1,1,0,?,?,?,?}> {
+ // A8.6.121
bits<16> regs;
-
- let Inst{8} = regs{15};
+ let Inst{8} = regs{15}; // registers = P:'0000000':register_list
let Inst{7-0} = regs{7-0};
}
+// All calls clobber the non-callee saved registers. SP is marked as a use to
+// prevent stack-pointer assignments that appear immediately before calls from
+// potentially appearing dead.
let isCall = 1,
+ // On non-Darwin platforms R9 is callee-saved.
Defs = [R0, R1, R2, R3, R12, LR,
D0, D1, D2, D3, D4, D5, D6, D7,
D16, D17, D18, D19, D20, D21, D22, D23,
- D24, D25, D26, D27, D28, D29, D30, D31, CPSR, FPSCR] in {
+ D24, D25, D26, D27, D28, D29, D30, D31, CPSR, FPSCR],
+ Uses = [SP] in {
// Also used for Thumb2
def tBL : TIx2<0b11110, 0b11, 1,
- (outs), (ins i32imm:$func, variable_ops), IIC_Br,
+ (outs), (ins t_bltarget:$func, variable_ops), IIC_Br,
"bl\t$func",
[(ARMtcall tglobaladdr:$func)]>,
- Requires<[IsThumb, IsNotDarwin]>;
+ Requires<[IsThumb, IsNotDarwin]> {
+ bits<21> func;
+ let Inst{25-16} = func{20-11};
+ let Inst{13} = 1;
+ let Inst{11} = 1;
+ let Inst{10-0} = func{10-0};
+ }
// ARMv5T and above, also used for Thumb2
def tBLXi : TIx2<0b11110, 0b11, 0,
- (outs), (ins i32imm:$func, variable_ops), IIC_Br,
+ (outs), (ins t_blxtarget:$func, variable_ops), IIC_Br,
"blx\t$func",
[(ARMcall tglobaladdr:$func)]>,
- Requires<[IsThumb, HasV5T, IsNotDarwin]>;
+ Requires<[IsThumb, HasV5T, IsNotDarwin]> {
+ bits<21> func;
+ let Inst{25-16} = func{20-11};
+ let Inst{13} = 1;
+ let Inst{11} = 1;
+ let Inst{10-1} = func{10-1};
+ let Inst{0} = 0; // func{0} is assumed zero
+ }
// Also used for Thumb2
def tBLXr : TI<(outs), (ins GPR:$func, variable_ops), IIC_Br,
T1Special<{1,1,1,?}>; // A6.2.3 & A8.6.24;
// ARMv4T
+ // FIXME: Should be a pseudo.
let isCodeGenOnly = 1 in
def tBX : TIx2<{?,?,?,?,?}, {?,?}, ?,
(outs), (ins tGPR:$func, variable_ops), IIC_Br,
Requires<[IsThumb, IsThumb1Only, IsNotDarwin]>;
}
-// On Darwin R9 is call-clobbered.
let isCall = 1,
+ // On Darwin R9 is call-clobbered.
+ // R7 is marked as a use to prevent frame-pointer assignments from being
+ // moved above / below calls.
Defs = [R0, R1, R2, R3, R9, R12, LR,
D0, D1, D2, D3, D4, D5, D6, D7,
D16, D17, D18, D19, D20, D21, D22, D23,
- D24, D25, D26, D27, D28, D29, D30, D31, CPSR, FPSCR] in {
+ D24, D25, D26, D27, D28, D29, D30, D31, CPSR, FPSCR],
+ Uses = [R7, SP] in {
// Also used for Thumb2
def tBLr9 : TIx2<0b11110, 0b11, 1,
- (outs), (ins i32imm:$func, variable_ops), IIC_Br,
- "bl\t$func",
+ (outs), (ins pred:$p, t_bltarget:$func, variable_ops),
+ IIC_Br, "bl${p}\t$func",
[(ARMtcall tglobaladdr:$func)]>,
- Requires<[IsThumb, IsDarwin]>;
+ Requires<[IsThumb, IsDarwin]> {
+ bits<21> func;
+ let Inst{25-16} = func{20-11};
+ let Inst{13} = 1;
+ let Inst{11} = 1;
+ let Inst{10-0} = func{10-0};
+ }
// ARMv5T and above, also used for Thumb2
def tBLXi_r9 : TIx2<0b11110, 0b11, 0,
- (outs), (ins i32imm:$func, variable_ops), IIC_Br,
- "blx\t$func",
+ (outs), (ins pred:$p, t_blxtarget:$func, variable_ops),
+ IIC_Br, "blx${p}\t$func",
[(ARMcall tglobaladdr:$func)]>,
- Requires<[IsThumb, HasV5T, IsDarwin]>;
+ Requires<[IsThumb, HasV5T, IsDarwin]> {
+ bits<21> func;
+ let Inst{25-16} = func{20-11};
+ let Inst{13} = 1;
+ let Inst{11} = 1;
+ let Inst{10-1} = func{10-1};
+ let Inst{0} = 0; // func{0} is assumed zero
+ }
// Also used for Thumb2
- def tBLXr_r9 : TI<(outs), (ins GPR:$func, variable_ops), IIC_Br,
- "blx\t$func",
+ def tBLXr_r9 : TI<(outs), (ins pred:$p, GPR:$func, variable_ops), IIC_Br,
+ "blx${p}\t$func",
[(ARMtcall GPR:$func)]>,
Requires<[IsThumb, HasV5T, IsDarwin]>,
- T1Special<{1,1,1,?}>; // A6.2.3 & A8.6.24
+ T1Special<{1,1,1,?}> {
+ // A6.2.3 & A8.6.24
+ bits<4> func;
+ let Inst{6-3} = func;
+ let Inst{2-0} = 0b000;
+ }
// ARMv4T
let isCodeGenOnly = 1 in
+ // FIXME: Should be a pseudo.
def tBXr9 : TIx2<{?,?,?,?,?}, {?,?}, ?,
(outs), (ins tGPR:$func, variable_ops), IIC_Br,
"mov\tlr, pc\n\tbx\t$func",
Requires<[IsThumb, IsThumb1Only, IsDarwin]>;
}
-let isBranch = 1, isTerminator = 1 in {
- let isBarrier = 1 in {
- let isPredicable = 1 in
- def tB : T1I<(outs), (ins brtarget:$target), IIC_Br,
- "b\t$target", [(br bb:$target)]>,
- T1Encoding<{1,1,1,0,0,?}>;
+let isBranch = 1, isTerminator = 1, isBarrier = 1 in {
+ let isPredicable = 1 in
+ def tB : T1I<(outs), (ins t_brtarget:$target), IIC_Br,
+ "b\t$target", [(br bb:$target)]>,
+ T1Encoding<{1,1,1,0,0,?}> {
+ bits<11> target;
+ let Inst{10-0} = target;
+ }
// Far jump
+ // FIXME: Encoding. This should probably be a pseudo for tBL
let Defs = [LR] in
def tBfar : TIx2<0b11110, 0b11, 1, (outs), (ins brtarget:$target), IIC_Br,
"bl\t$target",[]>;
- let isCodeGenOnly = 1 in
- def tBR_JTr : T1JTI<(outs),
- (ins tGPR:$target, jtblock_operand:$jt, i32imm:$id),
- IIC_Br, "mov\tpc, $target\n\t.align\t2$jt",
- [(ARMbrjt tGPR:$target, tjumptable:$jt, imm:$id)]>,
- Encoding16 {
- let Inst{15-7} = 0b010001101;
- let Inst{2-0} = 0b111;
- }
+ def tBR_JTr : tPseudoInst<(outs),
+ (ins tGPR:$target, i32imm:$jt, i32imm:$id),
+ Size2Bytes, IIC_Br,
+ [(ARMbrjt tGPR:$target, tjumptable:$jt, imm:$id)]> {
+ list<Predicate> Predicates = [IsThumb, IsThumb1Only];
}
}
// FIXME: should be able to write a pattern for ARMBrcond, but can't use
// a two-value operand where a dag node expects two operands. :(
let isBranch = 1, isTerminator = 1 in
- def tBcc : T1I<(outs), (ins brtarget:$target, pred:$cc), IIC_Br,
- "b$cc\t$target",
+ def tBcc : T1I<(outs), (ins t_bcctarget:$target, pred:$p), IIC_Br,
+ "b${p}\t$target",
[/*(ARMbrcond bb:$target, imm:$cc)*/]>,
- T1Encoding<{1,1,0,1,?,?}>;
+ T1Encoding<{1,1,0,1,?,?}> {
+ bits<4> p;
+ bits<8> target;
+ let Inst{11-8} = p;
+ let Inst{7-0} = target;
+}
// Compare and branch on zero / non-zero
let isBranch = 1, isTerminator = 1 in {
- def tCBZ : T1I<(outs), (ins tGPR:$cmp, brtarget:$target), IIC_Br,
- "cbz\t$cmp, $target", []>,
- T1Misc<{0,0,?,1,?,?,?}>;
+ def tCBZ : T1I<(outs), (ins tGPR:$Rn, t_cbtarget:$target), IIC_Br,
+ "cbz\t$Rn, $target", []>,
+ T1Misc<{0,0,?,1,?,?,?}> {
+ // A8.6.27
+ bits<6> target;
+ bits<3> Rn;
+ let Inst{9} = target{5};
+ let Inst{7-3} = target{4-0};
+ let Inst{2-0} = Rn;
+ }
- def tCBNZ : T1I<(outs), (ins tGPR:$cmp, brtarget:$target), IIC_Br,
+ def tCBNZ : T1I<(outs), (ins tGPR:$cmp, t_cbtarget:$target), IIC_Br,
"cbnz\t$cmp, $target", []>,
- T1Misc<{1,0,?,1,?,?,?}>;
+ T1Misc<{1,0,?,1,?,?,?}> {
+ // A8.6.27
+ bits<6> target;
+ bits<3> Rn;
+ let Inst{9} = target{5};
+ let Inst{7-3} = target{4-0};
+ let Inst{2-0} = Rn;
+ }
}
// A8.6.218 Supervisor Call (Software Interrupt) -- for disassembly only
// A8.6.16 B: Encoding T1
// If Inst{11-8} == 0b1111 then SEE SVC
-let isCall = 1 in {
-def tSVC : T1pI<(outs), (ins i32imm:$svc), IIC_Br, "svc", "\t$svc", []>,
- Encoding16 {
+let isCall = 1, Uses = [SP] in
+def tSVC : T1pI<(outs), (ins i32imm:$imm), IIC_Br,
+ "svc", "\t$imm", []>, Encoding16 {
+ bits<8> imm;
let Inst{15-12} = 0b1101;
- let Inst{11-8} = 0b1111;
-}
+ let Inst{11-8} = 0b1111;
+ let Inst{7-0} = imm;
}
-// A8.6.16 B: Encoding T1
-// If Inst{11-8} == 0b1110 then UNDEFINED
+// The assembler uses 0xDEFE for a trap instruction.
let isBarrier = 1, isTerminator = 1 in
def tTRAP : TI<(outs), (ins), IIC_Br,
"trap", [(trap)]>, Encoding16 {
- let Inst{15-12} = 0b1101;
- let Inst{11-8} = 0b1110;
+ let Inst = 0xdefe;
}
//===----------------------------------------------------------------------===//
//
let canFoldAsLoad = 1, isReMaterializable = 1 in
-def tLDR : T1pI4<(outs tGPR:$dst), (ins t_addrmode_s4:$addr), IIC_iLoad_r,
- "ldr", "\t$dst, $addr",
- [(set tGPR:$dst, (load t_addrmode_s4:$addr))]>,
- T1LdSt<0b100>;
-def tLDRi: T1pI4<(outs tGPR:$dst), (ins t_addrmode_s4:$addr), IIC_iLoad_r,
- "ldr", "\t$dst, $addr",
- []>,
- T1LdSt4Imm<{1,?,?}>;
-
-def tLDRB : T1pI1<(outs tGPR:$dst), (ins t_addrmode_s1:$addr), IIC_iLoad_bh_r,
- "ldrb", "\t$dst, $addr",
- [(set tGPR:$dst, (zextloadi8 t_addrmode_s1:$addr))]>,
- T1LdSt<0b110>;
-def tLDRBi: T1pI1<(outs tGPR:$dst), (ins t_addrmode_s1:$addr), IIC_iLoad_bh_r,
- "ldrb", "\t$dst, $addr",
- []>,
- T1LdSt1Imm<{1,?,?}>;
-
-def tLDRH : T1pI2<(outs tGPR:$dst), (ins t_addrmode_s2:$addr), IIC_iLoad_bh_r,
- "ldrh", "\t$dst, $addr",
- [(set tGPR:$dst, (zextloadi16 t_addrmode_s2:$addr))]>,
- T1LdSt<0b101>;
-def tLDRHi: T1pI2<(outs tGPR:$dst), (ins t_addrmode_s2:$addr), IIC_iLoad_bh_r,
- "ldrh", "\t$dst, $addr",
- []>,
- T1LdSt2Imm<{1,?,?}>;
+def tLDR : // A8.6.60
+ T1pILdStEncode<0b100, (outs tGPR:$Rt), (ins t_addrmode_s4:$addr),
+ AddrModeT1_4, IIC_iLoad_r,
+ "ldr", "\t$Rt, $addr",
+ [(set tGPR:$Rt, (load t_addrmode_s4:$addr))]>;
+
+def tLDRi : // A8.6.57
+ T1pILdStEncodeImm<0b0110, 1, (outs tGPR:$Rt), (ins t_addrmode_s4:$addr),
+ AddrModeT1_4, IIC_iLoad_r,
+ "ldr", "\t$Rt, $addr",
+ []>;
+
+def tLDRB : // A8.6.64
+ T1pILdStEncode<0b110, (outs tGPR:$Rt), (ins t_addrmode_s1:$addr),
+ AddrModeT1_1, IIC_iLoad_bh_r,
+ "ldrb", "\t$Rt, $addr",
+ [(set tGPR:$Rt, (zextloadi8 t_addrmode_s1:$addr))]>;
+
+def tLDRBi : // A8.6.61
+ T1pILdStEncodeImm<0b0111, 1, (outs tGPR:$Rt), (ins t_addrmode_s1:$addr),
+ AddrModeT1_1, IIC_iLoad_bh_r,
+ "ldrb", "\t$Rt, $addr",
+ []>;
+
+def tLDRH : // A8.6.76
+ T1pILdStEncode<0b101, (outs tGPR:$dst), (ins t_addrmode_s2:$addr),
+ AddrModeT1_2, IIC_iLoad_bh_r,
+ "ldrh", "\t$dst, $addr",
+ [(set tGPR:$dst, (zextloadi16 t_addrmode_s2:$addr))]>;
+
+def tLDRHi : // A8.6.73
+ T1pILdStEncodeImm<0b1000, 1, (outs tGPR:$Rt), (ins t_addrmode_s2:$addr),
+ AddrModeT1_2, IIC_iLoad_bh_r,
+ "ldrh", "\t$Rt, $addr",
+ []>;
let AddedComplexity = 10 in
-def tLDRSB : T1pI1<(outs tGPR:$dst), (ins t_addrmode_rr:$addr), IIC_iLoad_bh_r,
+def tLDRSB : // A8.6.80
+ T1pILdStEncode<0b011, (outs tGPR:$dst), (ins t_addrmode_rr:$addr),
+ AddrModeT1_1, IIC_iLoad_bh_r,
"ldrsb", "\t$dst, $addr",
- [(set tGPR:$dst, (sextloadi8 t_addrmode_rr:$addr))]>,
- T1LdSt<0b011>;
+ [(set tGPR:$dst, (sextloadi8 t_addrmode_rr:$addr))]>;
let AddedComplexity = 10 in
-def tLDRSH : T1pI2<(outs tGPR:$dst), (ins t_addrmode_rr:$addr), IIC_iLoad_bh_r,
+def tLDRSH : // A8.6.84
+ T1pILdStEncode<0b111, (outs tGPR:$dst), (ins t_addrmode_rr:$addr),
+ AddrModeT1_2, IIC_iLoad_bh_r,
"ldrsh", "\t$dst, $addr",
- [(set tGPR:$dst, (sextloadi16 t_addrmode_rr:$addr))]>,
- T1LdSt<0b111>;
+ [(set tGPR:$dst, (sextloadi16 t_addrmode_rr:$addr))]>;
let canFoldAsLoad = 1 in
-def tLDRspi : T1pIs<(outs tGPR:$dst), (ins t_addrmode_sp:$addr), IIC_iLoad_i,
- "ldr", "\t$dst, $addr",
- [(set tGPR:$dst, (load t_addrmode_sp:$addr))]>,
- T1LdStSP<{1,?,?}>;
+def tLDRspi : T1pIs<(outs tGPR:$Rt), (ins t_addrmode_sp:$addr), IIC_iLoad_i,
+ "ldr", "\t$Rt, $addr",
+ [(set tGPR:$Rt, (load t_addrmode_sp:$addr))]>,
+ T1LdStSP<{1,?,?}> {
+ bits<3> Rt;
+ bits<8> addr;
+ let Inst{10-8} = Rt;
+ let Inst{7-0} = addr;
+}
// Special instruction for restore. It cannot clobber condition register
// when it's expanded by eliminateCallFramePseudoInstr().
let canFoldAsLoad = 1, mayLoad = 1, neverHasSideEffects = 1 in
+// FIXME: Pseudo for tLDRspi
def tRestore : T1pIs<(outs tGPR:$dst), (ins t_addrmode_sp:$addr), IIC_iLoad_i,
"ldr", "\t$dst, $addr", []>,
T1LdStSP<{1,?,?}>;
// Load tconstpool
// FIXME: Use ldr.n to work around a Darwin assembler bug.
let canFoldAsLoad = 1, isReMaterializable = 1 in
-def tLDRpci : T1pIs<(outs tGPR:$dst), (ins i32imm:$addr), IIC_iLoad_i,
- "ldr", ".n\t$dst, $addr",
- [(set tGPR:$dst, (load (ARMWrapper tconstpool:$addr)))]>,
- T1Encoding<{0,1,0,0,1,?}>; // A6.2 & A8.6.59
+def tLDRpci : T1pIs<(outs tGPR:$Rt), (ins t_addrmode_pc:$addr), IIC_iLoad_i,
+ "ldr", ".n\t$Rt, $addr",
+ [(set tGPR:$Rt, (load (ARMWrapper tconstpool:$addr)))]>,
+ T1Encoding<{0,1,0,0,1,?}> {
+ // A6.2 & A8.6.59
+ bits<3> Rt;
+ bits<8> addr;
+ let Inst{10-8} = Rt;
+ let Inst{7-0} = addr;
+}
// Special LDR for loads from non-pc-relative constpools.
let canFoldAsLoad = 1, mayLoad = 1, neverHasSideEffects = 1,
isReMaterializable = 1 in
-def tLDRcp : T1pIs<(outs tGPR:$dst), (ins i32imm:$addr), IIC_iLoad_i,
- "ldr", "\t$dst, $addr", []>,
- T1LdStSP<{1,?,?}>;
-
-def tSTR : T1pI4<(outs), (ins tGPR:$src, t_addrmode_s4:$addr), IIC_iStore_r,
- "str", "\t$src, $addr",
- [(store tGPR:$src, t_addrmode_s4:$addr)]>,
- T1LdSt<0b000>;
-def tSTRi: T1pI4<(outs), (ins tGPR:$src, t_addrmode_s4:$addr), IIC_iStore_r,
- "str", "\t$src, $addr",
- []>,
- T1LdSt4Imm<{0,?,?}>;
-
-def tSTRB : T1pI1<(outs), (ins tGPR:$src, t_addrmode_s1:$addr), IIC_iStore_bh_r,
- "strb", "\t$src, $addr",
- [(truncstorei8 tGPR:$src, t_addrmode_s1:$addr)]>,
- T1LdSt<0b010>;
-def tSTRBi: T1pI1<(outs), (ins tGPR:$src, t_addrmode_s1:$addr), IIC_iStore_bh_r,
+def tLDRcp : T1pIs<(outs tGPR:$Rt), (ins i32imm:$addr), IIC_iLoad_i,
+ "ldr", "\t$Rt, $addr", []>,
+ T1LdStSP<{1,?,?}> {
+ // A6.2 & A8.6.57 T2
+ bits<3> Rt;
+ bits<8> addr;
+ let Inst{10-8} = Rt;
+ let Inst{7-0} = addr;
+}
+
+def tSTR : // A8.6.194
+ T1pILdStEncode<0b000, (outs), (ins tGPR:$src, t_addrmode_s4:$addr),
+ AddrModeT1_4, IIC_iStore_r,
+ "str", "\t$src, $addr",
+ [(store tGPR:$src, t_addrmode_s4:$addr)]>;
+
+def tSTRi : // A8.6.192
+ T1pILdStEncodeImm<0b0110, 0, (outs), (ins tGPR:$Rt, t_addrmode_s4:$addr),
+ AddrModeT1_4, IIC_iStore_r,
+ "str", "\t$Rt, $addr",
+ []>;
+
+def tSTRB : // A8.6.197
+ T1pILdStEncode<0b010, (outs), (ins tGPR:$src, t_addrmode_s1:$addr),
+ AddrModeT1_1, IIC_iStore_bh_r,
"strb", "\t$src, $addr",
- []>,
- T1LdSt1Imm<{0,?,?}>;
+ [(truncstorei8 tGPR:$src, t_addrmode_s1:$addr)]>;
-def tSTRH : T1pI2<(outs), (ins tGPR:$src, t_addrmode_s2:$addr), IIC_iStore_bh_r,
- "strh", "\t$src, $addr",
- [(truncstorei16 tGPR:$src, t_addrmode_s2:$addr)]>,
- T1LdSt<0b001>;
-def tSTRHi: T1pI2<(outs), (ins tGPR:$src, t_addrmode_s2:$addr), IIC_iStore_bh_r,
- "strh", "\t$src, $addr",
- []>,
- T1LdSt2Imm<{0,?,?}>;
+def tSTRBi : // A8.6.195
+ T1pILdStEncodeImm<0b0111, 0, (outs), (ins tGPR:$Rt, t_addrmode_s1:$addr),
+ AddrModeT1_1, IIC_iStore_bh_r,
+ "strb", "\t$Rt, $addr",
+ []>;
-def tSTRspi : T1pIs<(outs), (ins tGPR:$src, t_addrmode_sp:$addr), IIC_iStore_i,
- "str", "\t$src, $addr",
- [(store tGPR:$src, t_addrmode_sp:$addr)]>,
- T1LdStSP<{0,?,?}>;
+def tSTRH : // A8.6.207
+ T1pILdStEncode<0b001, (outs), (ins tGPR:$src, t_addrmode_s2:$addr),
+ AddrModeT1_2, IIC_iStore_bh_r,
+ "strh", "\t$src, $addr",
+ [(truncstorei16 tGPR:$src, t_addrmode_s2:$addr)]>;
+
+def tSTRHi : // A8.6.205
+ T1pILdStEncodeImm<0b1000, 0, (outs), (ins tGPR:$Rt, t_addrmode_s2:$addr),
+ AddrModeT1_2, IIC_iStore_bh_r,
+ "strh", "\t$Rt, $addr",
+ []>;
+
+def tSTRspi : T1pIs<(outs), (ins tGPR:$Rt, t_addrmode_sp:$addr), IIC_iStore_i,
+ "str", "\t$Rt, $addr",
+ [(store tGPR:$Rt, t_addrmode_sp:$addr)]>,
+ T1LdStSP<{0,?,?}> {
+ bits<3> Rt;
+ bits<8> addr;
+ let Inst{10-8} = Rt;
+ let Inst{7-0} = addr;
+}
-let mayStore = 1, neverHasSideEffects = 1 in {
-// Special instruction for spill. It cannot clobber condition register
-// when it's expanded by eliminateCallFramePseudoInstr().
+let mayStore = 1, neverHasSideEffects = 1 in
+// Special instruction for spill. It cannot clobber condition register when it's
+// expanded by eliminateCallFramePseudoInstr().
+// FIXME: Pseudo for tSTRspi
def tSpill : T1pIs<(outs), (ins tGPR:$src, t_addrmode_sp:$addr), IIC_iStore_i,
"str", "\t$src, $addr", []>,
T1LdStSP<{0,?,?}>;
-}
//===----------------------------------------------------------------------===//
// Load / store multiple Instructions.
def IA :
T1I<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
itin, !strconcat(asm, "ia${p}\t$Rn, $regs"), []>,
- T1Encoding<T1Enc>;
+ T1Encoding<T1Enc> {
+ bits<3> Rn;
+ bits<8> regs;
+ let Inst{10-8} = Rn;
+ let Inst{7-0} = regs;
+ }
def IA_UPD :
T1It<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
itin_upd, !strconcat(asm, "ia${p}\t$Rn!, $regs"), "$Rn = $wb", []>,
- T1Encoding<T1Enc>;
+ T1Encoding<T1Enc> {
+ bits<3> Rn;
+ bits<8> regs;
+ let Inst{10-8} = Rn;
+ let Inst{7-0} = regs;
+ }
}
// These require base address to be written back or one of the loaded regs.
"pop${p}\t$regs", []>,
T1Misc<{1,1,0,?,?,?,?}> {
bits<16> regs;
-
let Inst{8} = regs{15};
let Inst{7-0} = regs{7-0};
}
let mayStore = 1, Uses = [SP], Defs = [SP], hasExtraSrcRegAllocReq = 1 in
-def tPUSH : T1I<(outs), (ins pred:$p, reglist:$srcs, variable_ops),
+def tPUSH : T1I<(outs), (ins pred:$p, reglist:$regs, variable_ops),
IIC_iStore_m,
- "push${p}\t$srcs", []>,
- T1Misc<{0,1,0,?,?,?,?}>;
+ "push${p}\t$regs", []>,
+ T1Misc<{0,1,0,?,?,?,?}> {
+ bits<16> regs;
+ let Inst{8} = regs{14};
+ let Inst{7-0} = regs{7-0};
+}
//===----------------------------------------------------------------------===//
// Arithmetic Instructions.
//
+// Helper classes for encoding T1pI patterns:
+class T1pIDPEncode<bits<4> opA, dag oops, dag iops, InstrItinClass itin,
+ string opc, string asm, list<dag> pattern>
+ : T1pI<oops, iops, itin, opc, asm, pattern>,
+ T1DataProcessing<opA> {
+ bits<3> Rm;
+ bits<3> Rn;
+ let Inst{5-3} = Rm;
+ let Inst{2-0} = Rn;
+}
+class T1pIMiscEncode<bits<7> opA, dag oops, dag iops, InstrItinClass itin,
+ string opc, string asm, list<dag> pattern>
+ : T1pI<oops, iops, itin, opc, asm, pattern>,
+ T1Misc<opA> {
+ bits<3> Rm;
+ bits<3> Rd;
+ let Inst{5-3} = Rm;
+ let Inst{2-0} = Rd;
+}
+
+// Helper classes for encoding T1sI patterns:
+class T1sIDPEncode<bits<4> opA, dag oops, dag iops, InstrItinClass itin,
+ string opc, string asm, list<dag> pattern>
+ : T1sI<oops, iops, itin, opc, asm, pattern>,
+ T1DataProcessing<opA> {
+ bits<3> Rd;
+ bits<3> Rn;
+ let Inst{5-3} = Rn;
+ let Inst{2-0} = Rd;
+}
+class T1sIGenEncode<bits<5> opA, dag oops, dag iops, InstrItinClass itin,
+ string opc, string asm, list<dag> pattern>
+ : T1sI<oops, iops, itin, opc, asm, pattern>,
+ T1General<opA> {
+ bits<3> Rm;
+ bits<3> Rn;
+ bits<3> Rd;
+ let Inst{8-6} = Rm;
+ let Inst{5-3} = Rn;
+ let Inst{2-0} = Rd;
+}
+class T1sIGenEncodeImm<bits<5> opA, dag oops, dag iops, InstrItinClass itin,
+ string opc, string asm, list<dag> pattern>
+ : T1sI<oops, iops, itin, opc, asm, pattern>,
+ T1General<opA> {
+ bits<3> Rd;
+ bits<3> Rm;
+ let Inst{5-3} = Rm;
+ let Inst{2-0} = Rd;
+}
+
+// Helper classes for encoding T1sIt patterns:
+class T1sItDPEncode<bits<4> opA, dag oops, dag iops, InstrItinClass itin,
+ string opc, string asm, list<dag> pattern>
+ : T1sIt<oops, iops, itin, opc, asm, pattern>,
+ T1DataProcessing<opA> {
+ bits<3> Rdn;
+ bits<3> Rm;
+ let Inst{5-3} = Rm;
+ let Inst{2-0} = Rdn;
+}
+class T1sItGenEncodeImm<bits<5> opA, dag oops, dag iops, InstrItinClass itin,
+ string opc, string asm, list<dag> pattern>
+ : T1sIt<oops, iops, itin, opc, asm, pattern>,
+ T1General<opA> {
+ bits<3> Rdn;
+ bits<8> imm8;
+ let Inst{10-8} = Rdn;
+ let Inst{7-0} = imm8;
+}
+
// Add with carry register
let isCommutable = 1, Uses = [CPSR] in
-def tADC : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iALUr,
- "adc", "\t$dst, $rhs",
- [(set tGPR:$dst, (adde tGPR:$lhs, tGPR:$rhs))]>,
- T1DataProcessing<0b0101>;
+def tADC : // A8.6.2
+ T1sItDPEncode<0b0101, (outs tGPR:$Rdn), (ins tGPR:$Rn, tGPR:$Rm), IIC_iALUr,
+ "adc", "\t$Rdn, $Rm",
+ [(set tGPR:$Rdn, (adde tGPR:$Rn, tGPR:$Rm))]>;
// Add immediate
-def tADDi3 : T1sI<(outs tGPR:$dst), (ins tGPR:$lhs, i32imm:$rhs), IIC_iALUi,
- "add", "\t$dst, $lhs, $rhs",
- [(set tGPR:$dst, (add tGPR:$lhs, imm0_7:$rhs))]>,
- T1General<0b01110>;
+def tADDi3 : // A8.6.4 T1
+ T1sIGenEncodeImm<0b01110, (outs tGPR:$Rd), (ins tGPR:$Rm, i32imm:$imm3), IIC_iALUi,
+ "add", "\t$Rd, $Rm, $imm3",
+ [(set tGPR:$Rd, (add tGPR:$Rm, imm0_7:$imm3))]> {
+ bits<3> imm3;
+ let Inst{8-6} = imm3;
+}
-def tADDi8 : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, i32imm:$rhs), IIC_iALUi,
- "add", "\t$dst, $rhs",
- [(set tGPR:$dst, (add tGPR:$lhs, imm8_255:$rhs))]>,
- T1General<{1,1,0,?,?}>;
+def tADDi8 : // A8.6.4 T2
+ T1sItGenEncodeImm<{1,1,0,?,?}, (outs tGPR:$Rdn), (ins tGPR:$Rn, i32imm:$imm8),
+ IIC_iALUi,
+ "add", "\t$Rdn, $imm8",
+ [(set tGPR:$Rdn, (add tGPR:$Rn, imm8_255:$imm8))]>;
// Add register
let isCommutable = 1 in
-def tADDrr : T1sI<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iALUr,
- "add", "\t$dst, $lhs, $rhs",
- [(set tGPR:$dst, (add tGPR:$lhs, tGPR:$rhs))]>,
- T1General<0b01100>;
+def tADDrr : // A8.6.6 T1
+ T1sIGenEncode<0b01100, (outs tGPR:$Rd), (ins tGPR:$Rn, tGPR:$Rm),
+ IIC_iALUr,
+ "add", "\t$Rd, $Rn, $Rm",
+ [(set tGPR:$Rd, (add tGPR:$Rn, tGPR:$Rm))]>;
let neverHasSideEffects = 1 in
-def tADDhirr : T1pIt<(outs GPR:$dst), (ins GPR:$lhs, GPR:$rhs), IIC_iALUr,
- "add", "\t$dst, $rhs", []>,
- T1Special<{0,0,?,?}>;
+def tADDhirr : T1pIt<(outs GPR:$Rdn), (ins GPR:$Rn, GPR:$Rm), IIC_iALUr,
+ "add", "\t$Rdn, $Rm", []>,
+ T1Special<{0,0,?,?}> {
+ // A8.6.6 T2
+ bits<4> Rdn;
+ bits<4> Rm;
+ let Inst{7} = Rdn{3};
+ let Inst{6-3} = Rm;
+ let Inst{2-0} = Rdn{2-0};
+}
-// And register
+// AND register
let isCommutable = 1 in
-def tAND : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iBITr,
- "and", "\t$dst, $rhs",
- [(set tGPR:$dst, (and tGPR:$lhs, tGPR:$rhs))]>,
- T1DataProcessing<0b0000>;
+def tAND : // A8.6.12
+ T1sItDPEncode<0b0000, (outs tGPR:$Rdn), (ins tGPR:$Rn, tGPR:$Rm),
+ IIC_iBITr,
+ "and", "\t$Rdn, $Rm",
+ [(set tGPR:$Rdn, (and tGPR:$Rn, tGPR:$Rm))]>;
// ASR immediate
-def tASRri : T1sI<(outs tGPR:$dst), (ins tGPR:$lhs, i32imm:$rhs), IIC_iMOVsi,
- "asr", "\t$dst, $lhs, $rhs",
- [(set tGPR:$dst, (sra tGPR:$lhs, (i32 imm:$rhs)))]>,
- T1General<{0,1,0,?,?}>;
+def tASRri : // A8.6.14
+ T1sIGenEncodeImm<{0,1,0,?,?}, (outs tGPR:$Rd), (ins tGPR:$Rm, i32imm:$imm5),
+ IIC_iMOVsi,
+ "asr", "\t$Rd, $Rm, $imm5",
+ [(set tGPR:$Rd, (sra tGPR:$Rm, (i32 imm:$imm5)))]> {
+ bits<5> imm5;
+ let Inst{10-6} = imm5;
+}
// ASR register
-def tASRrr : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iMOVsr,
- "asr", "\t$dst, $rhs",
- [(set tGPR:$dst, (sra tGPR:$lhs, tGPR:$rhs))]>,
- T1DataProcessing<0b0100>;
+def tASRrr : // A8.6.15
+ T1sItDPEncode<0b0100, (outs tGPR:$Rdn), (ins tGPR:$Rn, tGPR:$Rm),
+ IIC_iMOVsr,
+ "asr", "\t$Rdn, $Rm",
+ [(set tGPR:$Rdn, (sra tGPR:$Rn, tGPR:$Rm))]>;
// BIC register
-def tBIC : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iBITr,
- "bic", "\t$dst, $rhs",
- [(set tGPR:$dst, (and tGPR:$lhs, (not tGPR:$rhs)))]>,
- T1DataProcessing<0b1110>;
+def tBIC : // A8.6.20
+ T1sItDPEncode<0b1110, (outs tGPR:$Rdn), (ins tGPR:$Rn, tGPR:$Rm),
+ IIC_iBITr,
+ "bic", "\t$Rdn, $Rm",
+ [(set tGPR:$Rdn, (and tGPR:$Rn, (not tGPR:$Rm)))]>;
// CMN register
let isCompare = 1, Defs = [CPSR] in {
//FIXME: Disable CMN, as CCodes are backwards from compare expectations
// Compare-to-zero still works out, just not the relationals
-//def tCMN : T1pI<(outs), (ins tGPR:$lhs, tGPR:$rhs), IIC_iCMPr,
-// "cmn", "\t$lhs, $rhs",
-// [(ARMcmp tGPR:$lhs, (ineg tGPR:$rhs))]>,
-// T1DataProcessing<0b1011>;
-def tCMNz : T1pI<(outs), (ins tGPR:$lhs, tGPR:$rhs), IIC_iCMPr,
- "cmn", "\t$lhs, $rhs",
- [(ARMcmpZ tGPR:$lhs, (ineg tGPR:$rhs))]>,
- T1DataProcessing<0b1011>;
-}
+//def tCMN : // A8.6.33
+// T1pIDPEncode<0b1011, (outs), (ins tGPR:$lhs, tGPR:$rhs),
+// IIC_iCMPr,
+// "cmn", "\t$lhs, $rhs",
+// [(ARMcmp tGPR:$lhs, (ineg tGPR:$rhs))]>;
-// CMP immediate
-let isCompare = 1, Defs = [CPSR] in {
-def tCMPi8 : T1pI<(outs), (ins tGPR:$lhs, i32imm:$rhs), IIC_iCMPi,
- "cmp", "\t$lhs, $rhs",
- [(ARMcmp tGPR:$lhs, imm0_255:$rhs)]>,
- T1General<{1,0,1,?,?}>;
-def tCMPzi8 : T1pI<(outs), (ins tGPR:$lhs, i32imm:$rhs), IIC_iCMPi,
- "cmp", "\t$lhs, $rhs",
- [(ARMcmpZ tGPR:$lhs, imm0_255:$rhs)]>,
- T1General<{1,0,1,?,?}>;
-}
+def tCMNz : // A8.6.33
+ T1pIDPEncode<0b1011, (outs), (ins tGPR:$Rn, tGPR:$Rm),
+ IIC_iCMPr,
+ "cmn", "\t$Rn, $Rm",
+ [(ARMcmpZ tGPR:$Rn, (ineg tGPR:$Rm))]>;
-// CMP register
+} // isCompare = 1, Defs = [CPSR]
+
+// CMP immediate
let isCompare = 1, Defs = [CPSR] in {
-def tCMPr : T1pI<(outs), (ins tGPR:$Rn, tGPR:$Rm), IIC_iCMPr,
- "cmp", "\t$Rn, $Rm",
- [(ARMcmp tGPR:$Rn, tGPR:$Rm)]>,
- T1DataProcessing<0b1010> {
- bits<3> Rm;
+def tCMPi8 : T1pI<(outs), (ins tGPR:$Rn, i32imm:$imm8), IIC_iCMPi,
+ "cmp", "\t$Rn, $imm8",
+ [(ARMcmp tGPR:$Rn, imm0_255:$imm8)]>,
+ T1General<{1,0,1,?,?}> {
+ // A8.6.35
bits<3> Rn;
-
- let Inst{5-3} = Rm;
- let Inst{2-0} = Rn;
+ bits<8> imm8;
+ let Inst{10-8} = Rn;
+ let Inst{7-0} = imm8;
}
-def tCMPzr : T1pI<(outs), (ins tGPR:$lhs, tGPR:$rhs), IIC_iCMPr,
- "cmp", "\t$lhs, $rhs",
- [(ARMcmpZ tGPR:$lhs, tGPR:$rhs)]>,
- T1DataProcessing<0b1010>;
-
-def tCMPhir : T1pI<(outs), (ins GPR:$lhs, GPR:$rhs), IIC_iCMPr,
- "cmp", "\t$lhs, $rhs", []>,
- T1Special<{0,1,?,?}>;
-def tCMPzhir : T1pI<(outs), (ins GPR:$lhs, GPR:$rhs), IIC_iCMPr,
- "cmp", "\t$lhs, $rhs", []>,
- T1Special<{0,1,?,?}>;
+// CMP register
+def tCMPr : // A8.6.36 T1
+ T1pIDPEncode<0b1010, (outs), (ins tGPR:$Rn, tGPR:$Rm),
+ IIC_iCMPr,
+ "cmp", "\t$Rn, $Rm",
+ [(ARMcmp tGPR:$Rn, tGPR:$Rm)]>;
+
+def tCMPhir : T1pI<(outs), (ins GPR:$Rn, GPR:$Rm), IIC_iCMPr,
+ "cmp", "\t$Rn, $Rm", []>,
+ T1Special<{0,1,?,?}> {
+ // A8.6.36 T2
+ bits<4> Rm;
+ bits<4> Rn;
+ let Inst{7} = Rn{3};
+ let Inst{6-3} = Rm;
+ let Inst{2-0} = Rn{2-0};
}
+} // isCompare = 1, Defs = [CPSR]
// XOR register
let isCommutable = 1 in
-def tEOR : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iBITr,
- "eor", "\t$dst, $rhs",
- [(set tGPR:$dst, (xor tGPR:$lhs, tGPR:$rhs))]>,
- T1DataProcessing<0b0001>;
+def tEOR : // A8.6.45
+ T1sItDPEncode<0b0001, (outs tGPR:$Rdn), (ins tGPR:$Rn, tGPR:$Rm),
+ IIC_iBITr,
+ "eor", "\t$Rdn, $Rm",
+ [(set tGPR:$Rdn, (xor tGPR:$Rn, tGPR:$Rm))]>;
// LSL immediate
-def tLSLri : T1sI<(outs tGPR:$dst), (ins tGPR:$lhs, i32imm:$rhs), IIC_iMOVsi,
- "lsl", "\t$dst, $lhs, $rhs",
- [(set tGPR:$dst, (shl tGPR:$lhs, (i32 imm:$rhs)))]>,
- T1General<{0,0,0,?,?}>;
+def tLSLri : // A8.6.88
+ T1sIGenEncodeImm<{0,0,0,?,?}, (outs tGPR:$Rd), (ins tGPR:$Rm, i32imm:$imm5),
+ IIC_iMOVsi,
+ "lsl", "\t$Rd, $Rm, $imm5",
+ [(set tGPR:$Rd, (shl tGPR:$Rm, (i32 imm:$imm5)))]> {
+ bits<5> imm5;
+ let Inst{10-6} = imm5;
+}
// LSL register
-def tLSLrr : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iMOVsr,
- "lsl", "\t$dst, $rhs",
- [(set tGPR:$dst, (shl tGPR:$lhs, tGPR:$rhs))]>,
- T1DataProcessing<0b0010>;
+def tLSLrr : // A8.6.89
+ T1sItDPEncode<0b0010, (outs tGPR:$Rdn), (ins tGPR:$Rn, tGPR:$Rm),
+ IIC_iMOVsr,
+ "lsl", "\t$Rdn, $Rm",
+ [(set tGPR:$Rdn, (shl tGPR:$Rn, tGPR:$Rm))]>;
// LSR immediate
-def tLSRri : T1sI<(outs tGPR:$dst), (ins tGPR:$lhs, i32imm:$rhs), IIC_iMOVsi,
- "lsr", "\t$dst, $lhs, $rhs",
- [(set tGPR:$dst, (srl tGPR:$lhs, (i32 imm:$rhs)))]>,
- T1General<{0,0,1,?,?}>;
+def tLSRri : // A8.6.90
+ T1sIGenEncodeImm<{0,0,1,?,?}, (outs tGPR:$Rd), (ins tGPR:$Rm, i32imm:$imm5),
+ IIC_iMOVsi,
+ "lsr", "\t$Rd, $Rm, $imm5",
+ [(set tGPR:$Rd, (srl tGPR:$Rm, (i32 imm:$imm5)))]> {
+ bits<5> imm5;
+ let Inst{10-6} = imm5;
+}
// LSR register
-def tLSRrr : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iMOVsr,
- "lsr", "\t$dst, $rhs",
- [(set tGPR:$dst, (srl tGPR:$lhs, tGPR:$rhs))]>,
- T1DataProcessing<0b0011>;
+def tLSRrr : // A8.6.91
+ T1sItDPEncode<0b0011, (outs tGPR:$Rdn), (ins tGPR:$Rn, tGPR:$Rm),
+ IIC_iMOVsr,
+ "lsr", "\t$Rdn, $Rm",
+ [(set tGPR:$Rdn, (srl tGPR:$Rn, tGPR:$Rm))]>;
-// move register
+// Move register
let isMoveImm = 1 in
-def tMOVi8 : T1sI<(outs tGPR:$dst), (ins i32imm:$src), IIC_iMOVi,
- "mov", "\t$dst, $src",
- [(set tGPR:$dst, imm0_255:$src)]>,
- T1General<{1,0,0,?,?}>;
+def tMOVi8 : T1sI<(outs tGPR:$Rd), (ins i32imm:$imm8), IIC_iMOVi,
+ "mov", "\t$Rd, $imm8",
+ [(set tGPR:$Rd, imm0_255:$imm8)]>,
+ T1General<{1,0,0,?,?}> {
+ // A8.6.96
+ bits<3> Rd;
+ bits<8> imm8;
+ let Inst{10-8} = Rd;
+ let Inst{7-0} = imm8;
+}
// TODO: A7-73: MOV(2) - mov setting flag.
-
let neverHasSideEffects = 1 in {
// FIXME: Make this predicable.
-def tMOVr : T1I<(outs tGPR:$dst), (ins tGPR:$src), IIC_iMOVr,
- "mov\t$dst, $src", []>,
- T1Special<0b1000>;
+def tMOVr : T1I<(outs tGPR:$Rd), (ins tGPR:$Rm), IIC_iMOVr,
+ "mov\t$Rd, $Rm", []>,
+ T1Special<0b1000> {
+ // A8.6.97
+ bits<4> Rd;
+ bits<4> Rm;
+ // Bits {7-6} are encoded by the T1Special value.
+ let Inst{5-3} = Rm{2-0};
+ let Inst{2-0} = Rd{2-0};
+}
let Defs = [CPSR] in
-def tMOVSr : T1I<(outs tGPR:$dst), (ins tGPR:$src), IIC_iMOVr,
- "movs\t$dst, $src", []>, Encoding16 {
+def tMOVSr : T1I<(outs tGPR:$Rd), (ins tGPR:$Rm), IIC_iMOVr,
+ "movs\t$Rd, $Rm", []>, Encoding16 {
+ // A8.6.97
+ bits<3> Rd;
+ bits<3> Rm;
let Inst{15-6} = 0b0000000000;
+ let Inst{5-3} = Rm;
+ let Inst{2-0} = Rd;
}
// FIXME: Make these predicable.
-def tMOVgpr2tgpr : T1I<(outs tGPR:$dst), (ins GPR:$src), IIC_iMOVr,
- "mov\t$dst, $src", []>,
- T1Special<{1,0,0,?}>;
-def tMOVtgpr2gpr : T1I<(outs GPR:$dst), (ins tGPR:$src), IIC_iMOVr,
- "mov\t$dst, $src", []>,
- T1Special<{1,0,?,0}>;
-def tMOVgpr2gpr : T1I<(outs GPR:$dst), (ins GPR:$src), IIC_iMOVr,
- "mov\t$dst, $src", []>,
- T1Special<{1,0,?,?}>;
+def tMOVgpr2tgpr : T1I<(outs tGPR:$Rd), (ins GPR:$Rm), IIC_iMOVr,
+ "mov\t$Rd, $Rm", []>,
+ T1Special<{1,0,0,?}> {
+ // A8.6.97
+ bits<4> Rd;
+ bits<4> Rm;
+ // Bit {7} is encoded by the T1Special value.
+ let Inst{6-3} = Rm;
+ let Inst{2-0} = Rd{2-0};
+}
+def tMOVtgpr2gpr : T1I<(outs GPR:$Rd), (ins tGPR:$Rm), IIC_iMOVr,
+ "mov\t$Rd, $Rm", []>,
+ T1Special<{1,0,?,0}> {
+ // A8.6.97
+ bits<4> Rd;
+ bits<4> Rm;
+ // Bit {6} is encoded by the T1Special value.
+ let Inst{7} = Rd{3};
+ let Inst{5-3} = Rm{2-0};
+ let Inst{2-0} = Rd{2-0};
+}
+def tMOVgpr2gpr : T1I<(outs GPR:$Rd), (ins GPR:$Rm), IIC_iMOVr,
+ "mov\t$Rd, $Rm", []>,
+ T1Special<{1,0,?,?}> {
+ // A8.6.97
+ bits<4> Rd;
+ bits<4> Rm;
+ let Inst{7} = Rd{3};
+ let Inst{6-3} = Rm;
+ let Inst{2-0} = Rd{2-0};
+}
} // neverHasSideEffects
-// multiply register
+// Multiply register
let isCommutable = 1 in
-def tMUL : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iMUL32,
- "mul", "\t$dst, $rhs, $dst", /* A8.6.105 MUL Encoding T1 */
- [(set tGPR:$dst, (mul tGPR:$lhs, tGPR:$rhs))]>,
- T1DataProcessing<0b1101>;
-
-// move inverse register
-def tMVN : T1sI<(outs tGPR:$dst), (ins tGPR:$src), IIC_iMVNr,
- "mvn", "\t$dst, $src",
- [(set tGPR:$dst, (not tGPR:$src))]>,
- T1DataProcessing<0b1111>;
-
-// bitwise or register
+def tMUL : // A8.6.105 T1
+ T1sItDPEncode<0b1101, (outs tGPR:$Rdn), (ins tGPR:$Rn, tGPR:$Rm),
+ IIC_iMUL32,
+ "mul", "\t$Rdn, $Rm, $Rdn",
+ [(set tGPR:$Rdn, (mul tGPR:$Rn, tGPR:$Rm))]>;
+
+// Move inverse register
+def tMVN : // A8.6.107
+ T1sIDPEncode<0b1111, (outs tGPR:$Rd), (ins tGPR:$Rn), IIC_iMVNr,
+ "mvn", "\t$Rd, $Rn",
+ [(set tGPR:$Rd, (not tGPR:$Rn))]>;
+
+// Bitwise or register
let isCommutable = 1 in
-def tORR : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iBITr,
- "orr", "\t$dst, $rhs",
- [(set tGPR:$dst, (or tGPR:$lhs, tGPR:$rhs))]>,
- T1DataProcessing<0b1100>;
-
-// swaps
-def tREV : T1pI<(outs tGPR:$dst), (ins tGPR:$src), IIC_iUNAr,
- "rev", "\t$dst, $src",
- [(set tGPR:$dst, (bswap tGPR:$src))]>,
- Requires<[IsThumb, IsThumb1Only, HasV6]>,
- T1Misc<{1,0,1,0,0,0,?}>;
-
-def tREV16 : T1pI<(outs tGPR:$dst), (ins tGPR:$src), IIC_iUNAr,
- "rev16", "\t$dst, $src",
- [(set tGPR:$dst,
- (or (and (srl tGPR:$src, (i32 8)), 0xFF),
- (or (and (shl tGPR:$src, (i32 8)), 0xFF00),
- (or (and (srl tGPR:$src, (i32 8)), 0xFF0000),
- (and (shl tGPR:$src, (i32 8)), 0xFF000000)))))]>,
- Requires<[IsThumb, IsThumb1Only, HasV6]>,
- T1Misc<{1,0,1,0,0,1,?}>;
-
-def tREVSH : T1pI<(outs tGPR:$dst), (ins tGPR:$src), IIC_iUNAr,
- "revsh", "\t$dst, $src",
- [(set tGPR:$dst,
- (sext_inreg
- (or (srl (and tGPR:$src, 0xFF00), (i32 8)),
- (shl tGPR:$src, (i32 8))), i16))]>,
- Requires<[IsThumb, IsThumb1Only, HasV6]>,
- T1Misc<{1,0,1,0,1,1,?}>;
-
-// rotate right register
-def tROR : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iMOVsr,
- "ror", "\t$dst, $rhs",
- [(set tGPR:$dst, (rotr tGPR:$lhs, tGPR:$rhs))]>,
- T1DataProcessing<0b0111>;
-
-// negate register
-def tRSB : T1sI<(outs tGPR:$dst), (ins tGPR:$src), IIC_iALUi,
- "rsb", "\t$dst, $src, #0",
- [(set tGPR:$dst, (ineg tGPR:$src))]>,
- T1DataProcessing<0b1001>;
+def tORR : // A8.6.114
+ T1sItDPEncode<0b1100, (outs tGPR:$Rdn), (ins tGPR:$Rn, tGPR:$Rm),
+ IIC_iBITr,
+ "orr", "\t$Rdn, $Rm",
+ [(set tGPR:$Rdn, (or tGPR:$Rn, tGPR:$Rm))]>;
+
+// Swaps
+def tREV : // A8.6.134
+ T1pIMiscEncode<{1,0,1,0,0,0,?}, (outs tGPR:$Rd), (ins tGPR:$Rm),
+ IIC_iUNAr,
+ "rev", "\t$Rd, $Rm",
+ [(set tGPR:$Rd, (bswap tGPR:$Rm))]>,
+ Requires<[IsThumb, IsThumb1Only, HasV6]>;
+
+def tREV16 : // A8.6.135
+ T1pIMiscEncode<{1,0,1,0,0,1,?}, (outs tGPR:$Rd), (ins tGPR:$Rm),
+ IIC_iUNAr,
+ "rev16", "\t$Rd, $Rm",
+ [(set tGPR:$Rd,
+ (or (and (srl tGPR:$Rm, (i32 8)), 0xFF),
+ (or (and (shl tGPR:$Rm, (i32 8)), 0xFF00),
+ (or (and (srl tGPR:$Rm, (i32 8)), 0xFF0000),
+ (and (shl tGPR:$Rm, (i32 8)), 0xFF000000)))))]>,
+ Requires<[IsThumb, IsThumb1Only, HasV6]>;
+
+def tREVSH : // A8.6.136
+ T1pIMiscEncode<{1,0,1,0,1,1,?}, (outs tGPR:$Rd), (ins tGPR:$Rm),
+ IIC_iUNAr,
+ "revsh", "\t$Rd, $Rm",
+ [(set tGPR:$Rd,
+ (sext_inreg
+ (or (srl (and tGPR:$Rm, 0xFF00), (i32 8)),
+ (shl tGPR:$Rm, (i32 8))), i16))]>,
+ Requires<[IsThumb, IsThumb1Only, HasV6]>;
+
+// Rotate right register
+def tROR : // A8.6.139
+ T1sItDPEncode<0b0111, (outs tGPR:$Rdn), (ins tGPR:$Rn, tGPR:$Rm),
+ IIC_iMOVsr,
+ "ror", "\t$Rdn, $Rm",
+ [(set tGPR:$Rdn, (rotr tGPR:$Rn, tGPR:$Rm))]>;
+
+// Negate register
+def tRSB : // A8.6.141
+ T1sIDPEncode<0b1001, (outs tGPR:$Rd), (ins tGPR:$Rn),
+ IIC_iALUi,
+ "rsb", "\t$Rd, $Rn, #0",
+ [(set tGPR:$Rd, (ineg tGPR:$Rn))]>;
// Subtract with carry register
let Uses = [CPSR] in
-def tSBC : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iALUr,
- "sbc", "\t$dst, $rhs",
- [(set tGPR:$dst, (sube tGPR:$lhs, tGPR:$rhs))]>,
- T1DataProcessing<0b0110>;
+def tSBC : // A8.6.151
+ T1sItDPEncode<0b0110, (outs tGPR:$Rdn), (ins tGPR:$Rn, tGPR:$Rm),
+ IIC_iALUr,
+ "sbc", "\t$Rdn, $Rm",
+ [(set tGPR:$Rdn, (sube tGPR:$Rn, tGPR:$Rm))]>;
// Subtract immediate
-def tSUBi3 : T1sI<(outs tGPR:$dst), (ins tGPR:$lhs, i32imm:$rhs), IIC_iALUi,
- "sub", "\t$dst, $lhs, $rhs",
- [(set tGPR:$dst, (add tGPR:$lhs, imm0_7_neg:$rhs))]>,
- T1General<0b01111>;
-
-def tSUBi8 : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, i32imm:$rhs), IIC_iALUi,
- "sub", "\t$dst, $rhs",
- [(set tGPR:$dst, (add tGPR:$lhs, imm8_255_neg:$rhs))]>,
- T1General<{1,1,1,?,?}>;
-
-// subtract register
-def tSUBrr : T1sI<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iALUr,
- "sub", "\t$dst, $lhs, $rhs",
- [(set tGPR:$dst, (sub tGPR:$lhs, tGPR:$rhs))]>,
- T1General<0b01101>;
+def tSUBi3 : // A8.6.210 T1
+ T1sIGenEncodeImm<0b01111, (outs tGPR:$Rd), (ins tGPR:$Rm, i32imm:$imm3),
+ IIC_iALUi,
+ "sub", "\t$Rd, $Rm, $imm3",
+ [(set tGPR:$Rd, (add tGPR:$Rm, imm0_7_neg:$imm3))]> {
+ bits<3> imm3;
+ let Inst{8-6} = imm3;
+}
+
+def tSUBi8 : // A8.6.210 T2
+ T1sItGenEncodeImm<{1,1,1,?,?}, (outs tGPR:$Rdn), (ins tGPR:$Rn, i32imm:$imm8),
+ IIC_iALUi,
+ "sub", "\t$Rdn, $imm8",
+ [(set tGPR:$Rdn, (add tGPR:$Rn, imm8_255_neg:$imm8))]>;
+
+// Subtract register
+def tSUBrr : // A8.6.212
+ T1sIGenEncode<0b01101, (outs tGPR:$Rd), (ins tGPR:$Rn, tGPR:$Rm),
+ IIC_iALUr,
+ "sub", "\t$Rd, $Rn, $Rm",
+ [(set tGPR:$Rd, (sub tGPR:$Rn, tGPR:$Rm))]>;
// TODO: A7-96: STMIA - store multiple.
-// sign-extend byte
-def tSXTB : T1pI<(outs tGPR:$dst), (ins tGPR:$src), IIC_iUNAr,
- "sxtb", "\t$dst, $src",
- [(set tGPR:$dst, (sext_inreg tGPR:$src, i8))]>,
- Requires<[IsThumb, IsThumb1Only, HasV6]>,
- T1Misc<{0,0,1,0,0,1,?}>;
-
-// sign-extend short
-def tSXTH : T1pI<(outs tGPR:$dst), (ins tGPR:$src), IIC_iUNAr,
- "sxth", "\t$dst, $src",
- [(set tGPR:$dst, (sext_inreg tGPR:$src, i16))]>,
- Requires<[IsThumb, IsThumb1Only, HasV6]>,
- T1Misc<{0,0,1,0,0,0,?}>;
-
-// test
+// Sign-extend byte
+def tSXTB : // A8.6.222
+ T1pIMiscEncode<{0,0,1,0,0,1,?}, (outs tGPR:$Rd), (ins tGPR:$Rm),
+ IIC_iUNAr,
+ "sxtb", "\t$Rd, $Rm",
+ [(set tGPR:$Rd, (sext_inreg tGPR:$Rm, i8))]>,
+ Requires<[IsThumb, IsThumb1Only, HasV6]>;
+
+// Sign-extend short
+def tSXTH : // A8.6.224
+ T1pIMiscEncode<{0,0,1,0,0,0,?}, (outs tGPR:$Rd), (ins tGPR:$Rm),
+ IIC_iUNAr,
+ "sxth", "\t$Rd, $Rm",
+ [(set tGPR:$Rd, (sext_inreg tGPR:$Rm, i16))]>,
+ Requires<[IsThumb, IsThumb1Only, HasV6]>;
+
+// Test
let isCompare = 1, isCommutable = 1, Defs = [CPSR] in
-def tTST : T1pI<(outs), (ins tGPR:$lhs, tGPR:$rhs), IIC_iTSTr,
- "tst", "\t$lhs, $rhs",
- [(ARMcmpZ (and_su tGPR:$lhs, tGPR:$rhs), 0)]>,
- T1DataProcessing<0b1000>;
-
-// zero-extend byte
-def tUXTB : T1pI<(outs tGPR:$dst), (ins tGPR:$src), IIC_iUNAr,
- "uxtb", "\t$dst, $src",
- [(set tGPR:$dst, (and tGPR:$src, 0xFF))]>,
- Requires<[IsThumb, IsThumb1Only, HasV6]>,
- T1Misc<{0,0,1,0,1,1,?}>;
-
-// zero-extend short
-def tUXTH : T1pI<(outs tGPR:$dst), (ins tGPR:$src), IIC_iUNAr,
- "uxth", "\t$dst, $src",
- [(set tGPR:$dst, (and tGPR:$src, 0xFFFF))]>,
- Requires<[IsThumb, IsThumb1Only, HasV6]>,
- T1Misc<{0,0,1,0,1,0,?}>;
-
+def tTST : // A8.6.230
+ T1pIDPEncode<0b1000, (outs), (ins tGPR:$Rn, tGPR:$Rm), IIC_iTSTr,
+ "tst", "\t$Rn, $Rm",
+ [(ARMcmpZ (and_su tGPR:$Rn, tGPR:$Rm), 0)]>;
+
+// Zero-extend byte
+def tUXTB : // A8.6.262
+ T1pIMiscEncode<{0,0,1,0,1,1,?}, (outs tGPR:$Rd), (ins tGPR:$Rm),
+ IIC_iUNAr,
+ "uxtb", "\t$Rd, $Rm",
+ [(set tGPR:$Rd, (and tGPR:$Rm, 0xFF))]>,
+ Requires<[IsThumb, IsThumb1Only, HasV6]>;
+
+// Zero-extend short
+def tUXTH : // A8.6.264
+ T1pIMiscEncode<{0,0,1,0,1,0,?}, (outs tGPR:$Rd), (ins tGPR:$Rm),
+ IIC_iUNAr,
+ "uxth", "\t$Rd, $Rm",
+ [(set tGPR:$Rd, (and tGPR:$Rm, 0xFFFF))]>,
+ Requires<[IsThumb, IsThumb1Only, HasV6]>;
// Conditional move tMOVCCr - Used to implement the Thumb SELECT_CC operation.
// Expanded after instruction selection into a branch sequence.
// 16-bit movcc in IT blocks for Thumb2.
let neverHasSideEffects = 1 in {
-def tMOVCCr : T1pIt<(outs GPR:$dst), (ins GPR:$lhs, GPR:$rhs), IIC_iCMOVr,
- "mov", "\t$dst, $rhs", []>,
- T1Special<{1,0,?,?}>;
+def tMOVCCr : T1pIt<(outs GPR:$Rdn), (ins GPR:$Rn, GPR:$Rm), IIC_iCMOVr,
+ "mov", "\t$Rdn, $Rm", []>,
+ T1Special<{1,0,?,?}> {
+ bits<4> Rdn;
+ bits<4> Rm;
+ let Inst{7} = Rdn{3};
+ let Inst{6-3} = Rm;
+ let Inst{2-0} = Rdn{2-0};
+}
let isMoveImm = 1 in
-def tMOVCCi : T1pIt<(outs tGPR:$dst), (ins tGPR:$lhs, i32imm:$rhs), IIC_iCMOVi,
- "mov", "\t$dst, $rhs", []>,
- T1General<{1,0,0,?,?}>;
+def tMOVCCi : T1pIt<(outs tGPR:$Rdn), (ins tGPR:$Rn, i32imm:$Rm), IIC_iCMOVi,
+ "mov", "\t$Rdn, $Rm", []>,
+ T1General<{1,0,0,?,?}> {
+ bits<3> Rdn;
+ bits<8> Rm;
+ let Inst{10-8} = Rdn;
+ let Inst{7-0} = Rm;
+}
+
} // neverHasSideEffects
// tLEApcrel - Load a pc-relative address into a register without offending the
// assembler.
-let neverHasSideEffects = 1 in {
-let isReMaterializable = 1 in
-def tLEApcrel : T1I<(outs tGPR:$dst), (ins i32imm:$label, pred:$p), IIC_iALUi,
- "adr$p\t$dst, #$label", []>,
- T1Encoding<{1,0,1,0,0,?}>; // A6.2 & A8.6.10
+let neverHasSideEffects = 1, isReMaterializable = 1 in
+def tLEApcrel : T1I<(outs tGPR:$Rd), (ins i32imm:$label, pred:$p), IIC_iALUi,
+ "adr${p}\t$Rd, #$label", []>,
+ T1Encoding<{1,0,1,0,0,?}> {
+ // A6.2 & A8.6.10
+ bits<3> Rd;
+ let Inst{10-8} = Rd;
+ // FIXME: Add label encoding/fixup
+}
-} // neverHasSideEffects
-def tLEApcrelJT : T1I<(outs tGPR:$dst),
+def tLEApcrelJT : T1I<(outs tGPR:$Rd),
(ins i32imm:$label, nohash_imm:$id, pred:$p),
- IIC_iALUi, "adr$p\t$dst, #${label}_${id}", []>,
- T1Encoding<{1,0,1,0,0,?}>; // A6.2 & A8.6.10
+ IIC_iALUi, "adr${p}\t$Rd, #${label}_${id}", []>,
+ T1Encoding<{1,0,1,0,0,?}> {
+ // A6.2 & A8.6.10
+ bits<3> Rd;
+ let Inst{10-8} = Rd;
+ // FIXME: Add label encoding/fixup
+}
//===----------------------------------------------------------------------===//
// TLS Instructions
//
// __aeabi_read_tp preserves the registers r1-r3.
-let isCall = 1,
- Defs = [R0, LR] in {
- def tTPsoft : TIx2<0b11110, 0b11, 1, (outs), (ins), IIC_Br,
- "bl\t__aeabi_read_tp",
- [(set R0, ARMthread_pointer)]>;
+let isCall = 1, Defs = [R0, LR], Uses = [SP] in
+def tTPsoft : TIx2<0b11110, 0b11, 1, (outs), (ins), IIC_Br,
+ "bl\t__aeabi_read_tp",
+ [(set R0, ARMthread_pointer)]> {
+ // Encoding is 0xf7fffffe.
+ let Inst = 0xf7fffffe;
}
+//===----------------------------------------------------------------------===//
// SJLJ Exception handling intrinsics
-// eh_sjlj_setjmp() is an instruction sequence to store the return
-// address and save #0 in R0 for the non-longjmp case.
-// Since by its nature we may be coming from some other function to get
-// here, and we're using the stack frame for the containing function to
-// save/restore registers, we can't keep anything live in regs across
-// the eh_sjlj_setjmp(), else it will almost certainly have been tromped upon
-// when we get here from a longjmp(). We force everthing out of registers
-// except for our own input by listing the relevant registers in Defs. By
-// doing so, we also cause the prologue/epilogue code to actively preserve
-// all of the callee-saved resgisters, which is exactly what we want.
-// $val is a scratch register for our use.
-let Defs =
- [ R0, R1, R2, R3, R4, R5, R6, R7, R12 ], hasSideEffects = 1,
- isBarrier = 1, isCodeGenOnly = 1 in {
- def tInt_eh_sjlj_setjmp : ThumbXI<(outs),(ins tGPR:$src, tGPR:$val),
- AddrModeNone, SizeSpecial, NoItinerary, "", "",
- [(set R0, (ARMeh_sjlj_setjmp tGPR:$src, tGPR:$val))]>;
-}
+//
+
+// eh_sjlj_setjmp() is an instruction sequence to store the return address and
+// save #0 in R0 for the non-longjmp case. Since by its nature we may be coming
+// from some other function to get here, and we're using the stack frame for the
+// containing function to save/restore registers, we can't keep anything live in
+// regs across the eh_sjlj_setjmp(), else it will almost certainly have been
+// tromped upon when we get here from a longjmp(). We force everthing out of
+// registers except for our own input by listing the relevant registers in
+// Defs. By doing so, we also cause the prologue/epilogue code to actively
+// preserve all of the callee-saved resgisters, which is exactly what we want.
+// $val is a scratch register for our use.
+let Defs = [ R0, R1, R2, R3, R4, R5, R6, R7, R12 ],
+ hasSideEffects = 1, isBarrier = 1, isCodeGenOnly = 1 in
+def tInt_eh_sjlj_setjmp : ThumbXI<(outs),(ins tGPR:$src, tGPR:$val),
+ AddrModeNone, SizeSpecial, NoItinerary, "","",
+ [(set R0, (ARMeh_sjlj_setjmp tGPR:$src, tGPR:$val))]>;
// FIXME: Non-Darwin version(s)
let isBarrier = 1, hasSideEffects = 1, isTerminator = 1, isCodeGenOnly = 1,
- Defs = [ R7, LR, SP ] in {
+ Defs = [ R7, LR, SP ] in
def tInt_eh_sjlj_longjmp : XI<(outs), (ins GPR:$src, GPR:$scratch),
- AddrModeNone, SizeSpecial, IndexModeNone,
- Pseudo, NoItinerary, "", "",
- [(ARMeh_sjlj_longjmp GPR:$src, GPR:$scratch)]>,
- Requires<[IsThumb, IsDarwin]>;
-}
+ AddrModeNone, SizeSpecial, IndexModeNone,
+ Pseudo, NoItinerary, "", "",
+ [(ARMeh_sjlj_longjmp GPR:$src, GPR:$scratch)]>,
+ Requires<[IsThumb, IsDarwin]>;
//===----------------------------------------------------------------------===//
// Non-Instruction Patterns
//
+// Comparisons
+def : T1Pat<(ARMcmpZ tGPR:$Rn, imm0_255:$imm8),
+ (tCMPi8 tGPR:$Rn, imm0_255:$imm8)>;
+def : T1Pat<(ARMcmpZ tGPR:$Rn, tGPR:$Rm),
+ (tCMPr tGPR:$Rn, tGPR:$Rm)>;
+
// Add with carry
def : T1Pat<(addc tGPR:$lhs, imm0_7:$rhs),
(tADDi3 tGPR:$lhs, imm0_7:$rhs)>;
// scheduling.
let isReMaterializable = 1 in
def tLDRpci_pic : PseudoInst<(outs GPR:$dst), (ins i32imm:$addr, pclabel:$cp),
- NoItinerary,
+ NoItinerary,
[(set GPR:$dst, (ARMpic_add (load (ARMWrapper tconstpool:$addr)),
imm:$cp))]>,
Requires<[IsThumb, IsThumb1Only]>;
projects / oota-llvm.git / blobdiff