+
+//===----------------------------------------------------------------------===//
+// TLS Instructions
+//
+
+// __aeabi_read_tp preserves the registers r1-r3.
+// This is a pseudo inst so that we can get the encoding right,
+// complete with fixup for the aeabi_read_tp function.
+let isCall = 1,
+ Defs = [R0, R12, LR, CPSR], Uses = [SP] in {
+ def TPsoft : PseudoInst<(outs), (ins), IIC_Br,
+ [(set R0, ARMthread_pointer)]>;
+}
+
+//===----------------------------------------------------------------------===//
+// 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.
+// A constant value is passed in $val, and we use the location as a scratch.
+//
+// These are pseudo-instructions and are lowered to individual MC-insts, so
+// no encoding information is necessary.
+let Defs =
+ [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR, D0,
+ D1, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11, D12, D13, D14, D15,
+ D16, D17, D18, D19, D20, D21, D22, D23, D24, D25, D26, D27, D28, D29, D30,
+ D31 ], hasSideEffects = 1, isBarrier = 1 in {
+ def Int_eh_sjlj_setjmp : PseudoInst<(outs), (ins GPR:$src, GPR:$val),
+ NoItinerary,
+ [(set R0, (ARMeh_sjlj_setjmp GPR:$src, GPR:$val))]>,
+ Requires<[IsARM, HasVFP2]>;
+}
+
+let Defs =
+ [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR ],
+ hasSideEffects = 1, isBarrier = 1 in {
+ def Int_eh_sjlj_setjmp_nofp : PseudoInst<(outs), (ins GPR:$src, GPR:$val),
+ NoItinerary,
+ [(set R0, (ARMeh_sjlj_setjmp GPR:$src, GPR:$val))]>,
+ Requires<[IsARM, NoVFP]>;
+}
+
+// FIXME: Non-Darwin version(s)
+let isBarrier = 1, hasSideEffects = 1, isTerminator = 1,
+ Defs = [ R7, LR, SP ] in {
+def Int_eh_sjlj_longjmp : PseudoInst<(outs), (ins GPR:$src, GPR:$scratch),
+ NoItinerary,
+ [(ARMeh_sjlj_longjmp GPR:$src, GPR:$scratch)]>,
+ Requires<[IsARM, IsDarwin]>;
+}
+
+// eh.sjlj.dispatchsetup pseudo-instruction.
+// This pseudo is used for ARM, Thumb1 and Thumb2. Any differences are
+// handled when the pseudo is expanded (which happens before any passes
+// that need the instruction size).
+let isBarrier = 1, hasSideEffects = 1 in
+def Int_eh_sjlj_dispatchsetup :
+ PseudoInst<(outs), (ins), NoItinerary,
+ [(ARMeh_sjlj_dispatchsetup)]>,
+ Requires<[IsDarwin]>;
+
+//===----------------------------------------------------------------------===//
+// Non-Instruction Patterns
+//
+
+// Large immediate handling.
+
+// 32-bit immediate using two piece so_imms or movw + movt.
+// This is a single pseudo instruction, the benefit is that it can be remat'd
+// as a single unit instead of having to handle reg inputs.
+// FIXME: Remove this when we can do generalized remat.
+let isReMaterializable = 1, isMoveImm = 1 in
+def MOVi32imm : PseudoInst<(outs GPR:$dst), (ins i32imm:$src), IIC_iMOVix2,
+ [(set GPR:$dst, (arm_i32imm:$src))]>,
+ Requires<[IsARM]>;
+
+// Pseudo instruction that combines movw + movt + add pc (if PIC).
+// It also makes it possible to rematerialize the instructions.
+// FIXME: Remove this when we can do generalized remat and when machine licm
+// can properly the instructions.
+let isReMaterializable = 1 in {
+def MOV_ga_pcrel : PseudoInst<(outs GPR:$dst), (ins i32imm:$addr),
+ IIC_iMOVix2addpc,
+ [(set GPR:$dst, (ARMWrapperPIC tglobaladdr:$addr))]>,
+ Requires<[IsARM, UseMovt]>;
+
+def MOV_ga_dyn : PseudoInst<(outs GPR:$dst), (ins i32imm:$addr),
+ IIC_iMOVix2,
+ [(set GPR:$dst, (ARMWrapperDYN tglobaladdr:$addr))]>,
+ Requires<[IsARM, UseMovt]>;
+
+let AddedComplexity = 10 in
+def MOV_ga_pcrel_ldr : PseudoInst<(outs GPR:$dst), (ins i32imm:$addr),
+ IIC_iMOVix2ld,
+ [(set GPR:$dst, (load (ARMWrapperPIC tglobaladdr:$addr)))]>,
+ Requires<[IsARM, UseMovt]>;
+} // isReMaterializable
+
+// ConstantPool, GlobalAddress, and JumpTable
+def : ARMPat<(ARMWrapper tglobaladdr :$dst), (LEApcrel tglobaladdr :$dst)>,
+ Requires<[IsARM, DontUseMovt]>;
+def : ARMPat<(ARMWrapper tconstpool :$dst), (LEApcrel tconstpool :$dst)>;
+def : ARMPat<(ARMWrapper tglobaladdr :$dst), (MOVi32imm tglobaladdr :$dst)>,
+ Requires<[IsARM, UseMovt]>;
+def : ARMPat<(ARMWrapperJT tjumptable:$dst, imm:$id),
+ (LEApcrelJT tjumptable:$dst, imm:$id)>;
+
+// TODO: add,sub,and, 3-instr forms?
+
+// Tail calls
+def : ARMPat<(ARMtcret tcGPR:$dst),
+ (TCRETURNri tcGPR:$dst)>, Requires<[IsDarwin]>;
+
+def : ARMPat<(ARMtcret (i32 tglobaladdr:$dst)),
+ (TCRETURNdi texternalsym:$dst)>, Requires<[IsDarwin]>;
+
+def : ARMPat<(ARMtcret (i32 texternalsym:$dst)),
+ (TCRETURNdi texternalsym:$dst)>, Requires<[IsDarwin]>;
+
+def : ARMPat<(ARMtcret tcGPR:$dst),
+ (TCRETURNriND tcGPR:$dst)>, Requires<[IsNotDarwin]>;
+
+def : ARMPat<(ARMtcret (i32 tglobaladdr:$dst)),
+ (TCRETURNdiND texternalsym:$dst)>, Requires<[IsNotDarwin]>;
+
+def : ARMPat<(ARMtcret (i32 texternalsym:$dst)),
+ (TCRETURNdiND texternalsym:$dst)>, Requires<[IsNotDarwin]>;
+
+// Direct calls
+def : ARMPat<(ARMcall texternalsym:$func), (BL texternalsym:$func)>,
+ Requires<[IsARM, IsNotDarwin]>;
+def : ARMPat<(ARMcall texternalsym:$func), (BLr9 texternalsym:$func)>,
+ Requires<[IsARM, IsDarwin]>;
+
+// zextload i1 -> zextload i8
+def : ARMPat<(zextloadi1 addrmode_imm12:$addr), (LDRBi12 addrmode_imm12:$addr)>;
+def : ARMPat<(zextloadi1 ldst_so_reg:$addr), (LDRBrs ldst_so_reg:$addr)>;
+
+// extload -> zextload
+def : ARMPat<(extloadi1 addrmode_imm12:$addr), (LDRBi12 addrmode_imm12:$addr)>;
+def : ARMPat<(extloadi1 ldst_so_reg:$addr), (LDRBrs ldst_so_reg:$addr)>;
+def : ARMPat<(extloadi8 addrmode_imm12:$addr), (LDRBi12 addrmode_imm12:$addr)>;
+def : ARMPat<(extloadi8 ldst_so_reg:$addr), (LDRBrs ldst_so_reg:$addr)>;
+
+def : ARMPat<(extloadi16 addrmode3:$addr), (LDRH addrmode3:$addr)>;
+
+def : ARMPat<(extloadi8 addrmodepc:$addr), (PICLDRB addrmodepc:$addr)>;
+def : ARMPat<(extloadi16 addrmodepc:$addr), (PICLDRH addrmodepc:$addr)>;
+
+// smul* and smla*
+def : ARMV5TEPat<(mul (sra (shl GPR:$a, (i32 16)), (i32 16)),
+ (sra (shl GPR:$b, (i32 16)), (i32 16))),
+ (SMULBB GPR:$a, GPR:$b)>;
+def : ARMV5TEPat<(mul sext_16_node:$a, sext_16_node:$b),
+ (SMULBB GPR:$a, GPR:$b)>;
+def : ARMV5TEPat<(mul (sra (shl GPR:$a, (i32 16)), (i32 16)),
+ (sra GPR:$b, (i32 16))),
+ (SMULBT GPR:$a, GPR:$b)>;
+def : ARMV5TEPat<(mul sext_16_node:$a, (sra GPR:$b, (i32 16))),
+ (SMULBT GPR:$a, GPR:$b)>;
+def : ARMV5TEPat<(mul (sra GPR:$a, (i32 16)),
+ (sra (shl GPR:$b, (i32 16)), (i32 16))),
+ (SMULTB GPR:$a, GPR:$b)>;
+def : ARMV5TEPat<(mul (sra GPR:$a, (i32 16)), sext_16_node:$b),
+ (SMULTB GPR:$a, GPR:$b)>;
+def : ARMV5TEPat<(sra (mul GPR:$a, (sra (shl GPR:$b, (i32 16)), (i32 16))),
+ (i32 16)),
+ (SMULWB GPR:$a, GPR:$b)>;
+def : ARMV5TEPat<(sra (mul GPR:$a, sext_16_node:$b), (i32 16)),
+ (SMULWB GPR:$a, GPR:$b)>;
+
+def : ARMV5TEPat<(add GPR:$acc,
+ (mul (sra (shl GPR:$a, (i32 16)), (i32 16)),
+ (sra (shl GPR:$b, (i32 16)), (i32 16)))),
+ (SMLABB GPR:$a, GPR:$b, GPR:$acc)>;
+def : ARMV5TEPat<(add GPR:$acc,
+ (mul sext_16_node:$a, sext_16_node:$b)),
+ (SMLABB GPR:$a, GPR:$b, GPR:$acc)>;
+def : ARMV5TEPat<(add GPR:$acc,
+ (mul (sra (shl GPR:$a, (i32 16)), (i32 16)),
+ (sra GPR:$b, (i32 16)))),
+ (SMLABT GPR:$a, GPR:$b, GPR:$acc)>;
+def : ARMV5TEPat<(add GPR:$acc,
+ (mul sext_16_node:$a, (sra GPR:$b, (i32 16)))),
+ (SMLABT GPR:$a, GPR:$b, GPR:$acc)>;
+def : ARMV5TEPat<(add GPR:$acc,
+ (mul (sra GPR:$a, (i32 16)),
+ (sra (shl GPR:$b, (i32 16)), (i32 16)))),
+ (SMLATB GPR:$a, GPR:$b, GPR:$acc)>;
+def : ARMV5TEPat<(add GPR:$acc,
+ (mul (sra GPR:$a, (i32 16)), sext_16_node:$b)),
+ (SMLATB GPR:$a, GPR:$b, GPR:$acc)>;
+def : ARMV5TEPat<(add GPR:$acc,
+ (sra (mul GPR:$a, (sra (shl GPR:$b, (i32 16)), (i32 16))),
+ (i32 16))),
+ (SMLAWB GPR:$a, GPR:$b, GPR:$acc)>;
+def : ARMV5TEPat<(add GPR:$acc,
+ (sra (mul GPR:$a, sext_16_node:$b), (i32 16))),
+ (SMLAWB GPR:$a, GPR:$b, GPR:$acc)>;
+
+
+// Pre-v7 uses MCR for synchronization barriers.
+def : ARMPat<(ARMMemBarrierMCR GPR:$zero), (MCR 15, 0, GPR:$zero, 7, 10, 5)>,
+ Requires<[IsARM, HasV6]>;
+
+
+//===----------------------------------------------------------------------===//
+// Thumb Support
+//
+
+include "ARMInstrThumb.td"
+
+//===----------------------------------------------------------------------===//
+// Thumb2 Support
+//
+
+include "ARMInstrThumb2.td"
+
+//===----------------------------------------------------------------------===//
+// Floating Point Support
+//
+
+include "ARMInstrVFP.td"
+
+//===----------------------------------------------------------------------===//
+// Advanced SIMD (NEON) Support
+//
+
+include "ARMInstrNEON.td"
+