//===-- llvm/Support/TargetOpcodes.def - Target Indep Opcodes ---*- C++ -*-===// // // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. // See https://llvm.org/LICENSE.txt for license information. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception // //===----------------------------------------------------------------------===// // // This file defines the target independent instruction opcodes. // //===----------------------------------------------------------------------===// // NOTE: NO INCLUDE GUARD DESIRED! /// HANDLE_TARGET_OPCODE defines an opcode and its associated enum value. /// #ifndef HANDLE_TARGET_OPCODE #define HANDLE_TARGET_OPCODE(OPC, NUM) #endif /// HANDLE_TARGET_OPCODE_MARKER defines an alternative identifier for an opcode. /// #ifndef HANDLE_TARGET_OPCODE_MARKER #define HANDLE_TARGET_OPCODE_MARKER(IDENT, OPC) #endif /// Every instruction defined here must also appear in Target.td. /// HANDLE_TARGET_OPCODE(PHI) HANDLE_TARGET_OPCODE(INLINEASM) HANDLE_TARGET_OPCODE(INLINEASM_BR) HANDLE_TARGET_OPCODE(CFI_INSTRUCTION) HANDLE_TARGET_OPCODE(EH_LABEL) HANDLE_TARGET_OPCODE(GC_LABEL) HANDLE_TARGET_OPCODE(ANNOTATION_LABEL) /// KILL - This instruction is a noop that is used only to adjust the /// liveness of registers. This can be useful when dealing with /// sub-registers. HANDLE_TARGET_OPCODE(KILL) /// EXTRACT_SUBREG - This instruction takes two operands: a register /// that has subregisters, and a subregister index. It returns the /// extracted subregister value. This is commonly used to implement /// truncation operations on target architectures which support it. HANDLE_TARGET_OPCODE(EXTRACT_SUBREG) /// INSERT_SUBREG - This instruction takes three operands: a register that /// has subregisters, a register providing an insert value, and a /// subregister index. It returns the value of the first register with the /// value of the second register inserted. The first register is often /// defined by an IMPLICIT_DEF, because it is commonly used to implement /// anyext operations on target architectures which support it. HANDLE_TARGET_OPCODE(INSERT_SUBREG) /// IMPLICIT_DEF - This is the MachineInstr-level equivalent of undef. HANDLE_TARGET_OPCODE(IMPLICIT_DEF) /// SUBREG_TO_REG - Assert the value of bits in a super register. /// The result of this instruction is the value of the second operand inserted /// into the subregister specified by the third operand. All other bits are /// assumed to be equal to the bits in the immediate integer constant in the /// first operand. This instruction just communicates information; No code /// should be generated. /// This is typically used after an instruction where the write to a subregister /// implicitly cleared the bits in the super registers. HANDLE_TARGET_OPCODE(SUBREG_TO_REG) /// COPY_TO_REGCLASS - This instruction is a placeholder for a plain /// register-to-register copy into a specific register class. This is only /// used between instruction selection and MachineInstr creation, before /// virtual registers have been created for all the instructions, and it's /// only needed in cases where the register classes implied by the /// instructions are insufficient. It is emitted as a COPY MachineInstr. HANDLE_TARGET_OPCODE(COPY_TO_REGCLASS) /// DBG_VALUE - a mapping of the llvm.dbg.value intrinsic HANDLE_TARGET_OPCODE(DBG_VALUE) /// DBG_LABEL - a mapping of the llvm.dbg.label intrinsic HANDLE_TARGET_OPCODE(DBG_LABEL) /// REG_SEQUENCE - This variadic instruction is used to form a register that /// represents a consecutive sequence of sub-registers. It's used as a /// register coalescing / allocation aid and must be eliminated before code /// emission. // In SDNode form, the first operand encodes the register class created by // the REG_SEQUENCE, while each subsequent pair names a vreg + subreg index // pair. Once it has been lowered to a MachineInstr, the regclass operand // is no longer present. /// e.g. v1027 = REG_SEQUENCE v1024, 3, v1025, 4, v1026, 5 /// After register coalescing references of v1024 should be replace with /// v1027:3, v1025 with v1027:4, etc. HANDLE_TARGET_OPCODE(REG_SEQUENCE) /// COPY - Target-independent register copy. This instruction can also be /// used to copy between subregisters of virtual registers. HANDLE_TARGET_OPCODE(COPY) /// BUNDLE - This instruction represents an instruction bundle. Instructions /// which immediately follow a BUNDLE instruction which are marked with /// 'InsideBundle' flag are inside the bundle. HANDLE_TARGET_OPCODE(BUNDLE) /// Lifetime markers. HANDLE_TARGET_OPCODE(LIFETIME_START) HANDLE_TARGET_OPCODE(LIFETIME_END) /// A Stackmap instruction captures the location of live variables at its /// position in the instruction stream. It is followed by a shadow of bytes /// that must lie within the function and not contain another stackmap. HANDLE_TARGET_OPCODE(STACKMAP) /// FEntry all - This is a marker instruction which gets translated into a raw fentry call. HANDLE_TARGET_OPCODE(FENTRY_CALL) /// Patchable call instruction - this instruction represents a call to a /// constant address, followed by a series of NOPs. It is intended to /// support optimizations for dynamic languages (such as javascript) that /// rewrite calls to runtimes with more efficient code sequences. /// This also implies a stack map. HANDLE_TARGET_OPCODE(PATCHPOINT) /// This pseudo-instruction loads the stack guard value. Targets which need /// to prevent the stack guard value or address from being spilled to the /// stack should override TargetLowering::emitLoadStackGuardNode and /// additionally expand this pseudo after register allocation. HANDLE_TARGET_OPCODE(LOAD_STACK_GUARD) /// Call instruction with associated vm state for deoptimization and list /// of live pointers for relocation by the garbage collector. It is /// intended to support garbage collection with fully precise relocating /// collectors and deoptimizations in either the callee or caller. HANDLE_TARGET_OPCODE(STATEPOINT) /// Instruction that records the offset of a local stack allocation passed to /// llvm.localescape. It has two arguments: the symbol for the label and the /// frame index of the local stack allocation. HANDLE_TARGET_OPCODE(LOCAL_ESCAPE) /// Wraps a machine instruction which can fault, bundled with associated /// information on how to handle such a fault. /// For example loading instruction that may page fault, bundled with associated /// information on how to handle such a page fault. It is intended to support /// "zero cost" null checks in managed languages by allowing LLVM to fold /// comparisons into existing memory operations. HANDLE_TARGET_OPCODE(FAULTING_OP) /// Wraps a machine instruction to add patchability constraints. An /// instruction wrapped in PATCHABLE_OP has to either have a minimum /// size or be preceded with a nop of that size. The first operand is /// an immediate denoting the minimum size of the instruction, the /// second operand is an immediate denoting the opcode of the original /// instruction. The rest of the operands are the operands of the /// original instruction. HANDLE_TARGET_OPCODE(PATCHABLE_OP) /// This is a marker instruction which gets translated into a nop sled, useful /// for inserting instrumentation instructions at runtime. HANDLE_TARGET_OPCODE(PATCHABLE_FUNCTION_ENTER) /// Wraps a return instruction and its operands to enable adding nop sleds /// either before or after the return. The nop sleds are useful for inserting /// instrumentation instructions at runtime. /// The patch here replaces the return instruction. HANDLE_TARGET_OPCODE(PATCHABLE_RET) /// This is a marker instruction which gets translated into a nop sled, useful /// for inserting instrumentation instructions at runtime. /// The patch here prepends the return instruction. /// The same thing as in x86_64 is not possible for ARM because it has multiple /// return instructions. Furthermore, CPU allows parametrized and even /// conditional return instructions. In the current ARM implementation we are /// making use of the fact that currently LLVM doesn't seem to generate /// conditional return instructions. /// On ARM, the same instruction can be used for popping multiple registers /// from the stack and returning (it just pops pc register too), and LLVM /// generates it sometimes. So we can't insert the sled between this stack /// adjustment and the return without splitting the original instruction into 2 /// instructions. So on ARM, rather than jumping into the exit trampoline, we /// call it, it does the tracing, preserves the stack and returns. HANDLE_TARGET_OPCODE(PATCHABLE_FUNCTION_EXIT) /// Wraps a tail call instruction and its operands to enable adding nop sleds /// either before or after the tail exit. We use this as a disambiguation from /// PATCHABLE_RET which specifically only works for return instructions. HANDLE_TARGET_OPCODE(PATCHABLE_TAIL_CALL) /// Wraps a logging call and its arguments with nop sleds. At runtime, this can /// be patched to insert instrumentation instructions. HANDLE_TARGET_OPCODE(PATCHABLE_EVENT_CALL) /// Wraps a typed logging call and its argument with nop sleds. At runtime, this /// can be patched to insert instrumentation instructions. HANDLE_TARGET_OPCODE(PATCHABLE_TYPED_EVENT_CALL) HANDLE_TARGET_OPCODE(ICALL_BRANCH_FUNNEL) /// The following generic opcodes are not supposed to appear after ISel. /// This is something we might want to relax, but for now, this is convenient /// to produce diagnostics. /// Generic ADD instruction. This is an integer add. HANDLE_TARGET_OPCODE(G_ADD) HANDLE_TARGET_OPCODE_MARKER(PRE_ISEL_GENERIC_OPCODE_START, G_ADD) /// Generic SUB instruction. This is an integer sub. HANDLE_TARGET_OPCODE(G_SUB) // Generic multiply instruction. HANDLE_TARGET_OPCODE(G_MUL) // Generic signed division instruction. HANDLE_TARGET_OPCODE(G_SDIV) // Generic unsigned division instruction. HANDLE_TARGET_OPCODE(G_UDIV) // Generic signed remainder instruction. HANDLE_TARGET_OPCODE(G_SREM) // Generic unsigned remainder instruction. HANDLE_TARGET_OPCODE(G_UREM) /// Generic bitwise and instruction. HANDLE_TARGET_OPCODE(G_AND) /// Generic bitwise or instruction. HANDLE_TARGET_OPCODE(G_OR) /// Generic bitwise exclusive-or instruction. HANDLE_TARGET_OPCODE(G_XOR) HANDLE_TARGET_OPCODE(G_IMPLICIT_DEF) /// Generic PHI instruction with types. HANDLE_TARGET_OPCODE(G_PHI) /// Generic instruction to materialize the address of an alloca or other /// stack-based object. HANDLE_TARGET_OPCODE(G_FRAME_INDEX) /// Generic reference to global value. HANDLE_TARGET_OPCODE(G_GLOBAL_VALUE) /// Generic instruction to extract blocks of bits from the register given /// (typically a sub-register COPY after instruction selection). HANDLE_TARGET_OPCODE(G_EXTRACT) HANDLE_TARGET_OPCODE(G_UNMERGE_VALUES) /// Generic instruction to insert blocks of bits from the registers given into /// the source. HANDLE_TARGET_OPCODE(G_INSERT) /// Generic instruction to paste a variable number of components together into a /// larger register. HANDLE_TARGET_OPCODE(G_MERGE_VALUES) /// Generic instruction to create a vector value from a number of scalar /// components. HANDLE_TARGET_OPCODE(G_BUILD_VECTOR) /// Generic instruction to create a vector value from a number of scalar /// components, which have types larger than the result vector elt type. HANDLE_TARGET_OPCODE(G_BUILD_VECTOR_TRUNC) /// Generic instruction to create a vector by concatenating multiple vectors. HANDLE_TARGET_OPCODE(G_CONCAT_VECTORS) /// Generic pointer to int conversion. HANDLE_TARGET_OPCODE(G_PTRTOINT) /// Generic int to pointer conversion. HANDLE_TARGET_OPCODE(G_INTTOPTR) /// Generic bitcast. The source and destination types must be different, or a /// COPY is the relevant instruction. HANDLE_TARGET_OPCODE(G_BITCAST) /// INTRINSIC trunc intrinsic. HANDLE_TARGET_OPCODE(G_INTRINSIC_TRUNC) /// INTRINSIC round intrinsic. HANDLE_TARGET_OPCODE(G_INTRINSIC_ROUND) /// INTRINSIC readcyclecounter HANDLE_TARGET_OPCODE(G_READCYCLECOUNTER) /// Generic load (including anyext load) HANDLE_TARGET_OPCODE(G_LOAD) /// Generic signext load HANDLE_TARGET_OPCODE(G_SEXTLOAD) /// Generic zeroext load HANDLE_TARGET_OPCODE(G_ZEXTLOAD) /// Generic indexed load (including anyext load) HANDLE_TARGET_OPCODE(G_INDEXED_LOAD) /// Generic indexed signext load HANDLE_TARGET_OPCODE(G_INDEXED_SEXTLOAD) /// Generic indexed zeroext load HANDLE_TARGET_OPCODE(G_INDEXED_ZEXTLOAD) /// Generic store. HANDLE_TARGET_OPCODE(G_STORE) /// Generic indexed store. HANDLE_TARGET_OPCODE(G_INDEXED_STORE) /// Generic atomic cmpxchg with internal success check. HANDLE_TARGET_OPCODE(G_ATOMIC_CMPXCHG_WITH_SUCCESS) /// Generic atomic cmpxchg. HANDLE_TARGET_OPCODE(G_ATOMIC_CMPXCHG) /// Generic atomicrmw. HANDLE_TARGET_OPCODE(G_ATOMICRMW_XCHG) HANDLE_TARGET_OPCODE(G_ATOMICRMW_ADD) HANDLE_TARGET_OPCODE(G_ATOMICRMW_SUB) HANDLE_TARGET_OPCODE(G_ATOMICRMW_AND) HANDLE_TARGET_OPCODE(G_ATOMICRMW_NAND) HANDLE_TARGET_OPCODE(G_ATOMICRMW_OR) HANDLE_TARGET_OPCODE(G_ATOMICRMW_XOR) HANDLE_TARGET_OPCODE(G_ATOMICRMW_MAX) HANDLE_TARGET_OPCODE(G_ATOMICRMW_MIN) HANDLE_TARGET_OPCODE(G_ATOMICRMW_UMAX) HANDLE_TARGET_OPCODE(G_ATOMICRMW_UMIN) HANDLE_TARGET_OPCODE(G_ATOMICRMW_FADD) HANDLE_TARGET_OPCODE(G_ATOMICRMW_FSUB) // Generic atomic fence HANDLE_TARGET_OPCODE(G_FENCE) /// Generic conditional branch instruction. HANDLE_TARGET_OPCODE(G_BRCOND) /// Generic indirect branch instruction. HANDLE_TARGET_OPCODE(G_BRINDIRECT) /// Generic intrinsic use (without side effects). HANDLE_TARGET_OPCODE(G_INTRINSIC) /// Generic intrinsic use (with side effects). HANDLE_TARGET_OPCODE(G_INTRINSIC_W_SIDE_EFFECTS) /// Generic extension allowing rubbish in high bits. HANDLE_TARGET_OPCODE(G_ANYEXT) /// Generic instruction to discard the high bits of a register. This differs /// from (G_EXTRACT val, 0) on its action on vectors: G_TRUNC will truncate /// each element individually, G_EXTRACT will typically discard the high /// elements of the vector. HANDLE_TARGET_OPCODE(G_TRUNC) /// Generic integer constant. HANDLE_TARGET_OPCODE(G_CONSTANT) /// Generic floating constant. HANDLE_TARGET_OPCODE(G_FCONSTANT) /// Generic va_start instruction. Stores to its one pointer operand. HANDLE_TARGET_OPCODE(G_VASTART) /// Generic va_start instruction. Stores to its one pointer operand. HANDLE_TARGET_OPCODE(G_VAARG) // Generic sign extend HANDLE_TARGET_OPCODE(G_SEXT) HANDLE_TARGET_OPCODE(G_SEXT_INREG) // Generic zero extend HANDLE_TARGET_OPCODE(G_ZEXT) // Generic left-shift HANDLE_TARGET_OPCODE(G_SHL) // Generic logical right-shift HANDLE_TARGET_OPCODE(G_LSHR) // Generic arithmetic right-shift HANDLE_TARGET_OPCODE(G_ASHR) /// Generic integer-base comparison, also applicable to vectors of integers. HANDLE_TARGET_OPCODE(G_ICMP) /// Generic floating-point comparison, also applicable to vectors. HANDLE_TARGET_OPCODE(G_FCMP) /// Generic select. HANDLE_TARGET_OPCODE(G_SELECT) /// Generic unsigned add instruction, consuming the normal operands and /// producing the result and a carry flag. HANDLE_TARGET_OPCODE(G_UADDO) /// Generic unsigned add instruction, consuming the normal operands plus a carry /// flag, and similarly producing the result and a carry flag. HANDLE_TARGET_OPCODE(G_UADDE) /// Generic unsigned sub instruction, consuming the normal operands and /// producing the result and a carry flag. HANDLE_TARGET_OPCODE(G_USUBO) /// Generic unsigned subtract instruction, consuming the normal operands plus a /// carry flag, and similarly producing the result and a carry flag. HANDLE_TARGET_OPCODE(G_USUBE) /// Generic signed add instruction, producing the result and a signed overflow /// flag. HANDLE_TARGET_OPCODE(G_SADDO) /// Generic signed add instruction, consuming the normal operands plus a carry /// flag, and similarly producing the result and a carry flag. HANDLE_TARGET_OPCODE(G_SADDE) /// Generic signed subtract instruction, producing the result and a signed /// overflow flag. HANDLE_TARGET_OPCODE(G_SSUBO) /// Generic signed sub instruction, consuming the normal operands plus a carry /// flag, and similarly producing the result and a carry flag. HANDLE_TARGET_OPCODE(G_SSUBE) /// Generic unsigned multiply instruction, producing the result and a signed /// overflow flag. HANDLE_TARGET_OPCODE(G_UMULO) /// Generic signed multiply instruction, producing the result and a signed /// overflow flag. HANDLE_TARGET_OPCODE(G_SMULO) // Multiply two numbers at twice the incoming bit width (unsigned) and return // the high half of the result. HANDLE_TARGET_OPCODE(G_UMULH) // Multiply two numbers at twice the incoming bit width (signed) and return // the high half of the result. HANDLE_TARGET_OPCODE(G_SMULH) /// Generic FP addition. HANDLE_TARGET_OPCODE(G_FADD) /// Generic FP subtraction. HANDLE_TARGET_OPCODE(G_FSUB) /// Generic FP multiplication. HANDLE_TARGET_OPCODE(G_FMUL) /// Generic FMA multiplication. Behaves like llvm fma intrinsic HANDLE_TARGET_OPCODE(G_FMA) /// Generic FP multiply and add. Behaves as separate fmul and fadd. HANDLE_TARGET_OPCODE(G_FMAD) /// Generic FP division. HANDLE_TARGET_OPCODE(G_FDIV) /// Generic FP remainder. HANDLE_TARGET_OPCODE(G_FREM) /// Generic FP exponentiation. HANDLE_TARGET_OPCODE(G_FPOW) /// Generic base-e exponential of a value. HANDLE_TARGET_OPCODE(G_FEXP) /// Generic base-2 exponential of a value. HANDLE_TARGET_OPCODE(G_FEXP2) /// Floating point base-e logarithm of a value. HANDLE_TARGET_OPCODE(G_FLOG) /// Floating point base-2 logarithm of a value. HANDLE_TARGET_OPCODE(G_FLOG2) /// Floating point base-10 logarithm of a value. HANDLE_TARGET_OPCODE(G_FLOG10) /// Generic FP negation. HANDLE_TARGET_OPCODE(G_FNEG) /// Generic FP extension. HANDLE_TARGET_OPCODE(G_FPEXT) /// Generic float to signed-int conversion HANDLE_TARGET_OPCODE(G_FPTRUNC) /// Generic float to signed-int conversion HANDLE_TARGET_OPCODE(G_FPTOSI) /// Generic float to unsigned-int conversion HANDLE_TARGET_OPCODE(G_FPTOUI) /// Generic signed-int to float conversion HANDLE_TARGET_OPCODE(G_SITOFP) /// Generic unsigned-int to float conversion HANDLE_TARGET_OPCODE(G_UITOFP) /// Generic FP absolute value. HANDLE_TARGET_OPCODE(G_FABS) /// FCOPYSIGN(X, Y) - Return the value of X with the sign of Y. NOTE: This does /// not require that X and Y have the same type, just that they are both /// floating point. X and the result must have the same type. FCOPYSIGN(f32, /// f64) is allowed. HANDLE_TARGET_OPCODE(G_FCOPYSIGN) /// Generic FP canonicalize value. HANDLE_TARGET_OPCODE(G_FCANONICALIZE) /// FP min/max matching libm's fmin/fmax HANDLE_TARGET_OPCODE(G_FMINNUM) HANDLE_TARGET_OPCODE(G_FMAXNUM) /// FP min/max matching IEEE-754 2008's minnum/maxnum semantics. HANDLE_TARGET_OPCODE(G_FMINNUM_IEEE) HANDLE_TARGET_OPCODE(G_FMAXNUM_IEEE) /// FP min/max matching IEEE-754 2018 draft semantics. HANDLE_TARGET_OPCODE(G_FMINIMUM) HANDLE_TARGET_OPCODE(G_FMAXIMUM) /// Generic pointer offset HANDLE_TARGET_OPCODE(G_PTR_ADD) /// Clear the specified number of low bits in a pointer. This rounds the value /// *down* to the given alignment. HANDLE_TARGET_OPCODE(G_PTR_MASK) /// Generic signed integer minimum. HANDLE_TARGET_OPCODE(G_SMIN) /// Generic signed integer maximum. HANDLE_TARGET_OPCODE(G_SMAX) /// Generic unsigned integer maximum. HANDLE_TARGET_OPCODE(G_UMIN) /// Generic unsigned integer maximum. HANDLE_TARGET_OPCODE(G_UMAX) /// Generic BRANCH instruction. This is an unconditional branch. HANDLE_TARGET_OPCODE(G_BR) /// Generic branch to jump table entry. HANDLE_TARGET_OPCODE(G_BRJT) /// Generic insertelement. HANDLE_TARGET_OPCODE(G_INSERT_VECTOR_ELT) /// Generic extractelement. HANDLE_TARGET_OPCODE(G_EXTRACT_VECTOR_ELT) /// Generic shufflevector. HANDLE_TARGET_OPCODE(G_SHUFFLE_VECTOR) /// Generic count trailing zeroes. HANDLE_TARGET_OPCODE(G_CTTZ) /// Same as above, undefined for zero inputs. HANDLE_TARGET_OPCODE(G_CTTZ_ZERO_UNDEF) /// Generic count leading zeroes. HANDLE_TARGET_OPCODE(G_CTLZ) /// Same as above, undefined for zero inputs. HANDLE_TARGET_OPCODE(G_CTLZ_ZERO_UNDEF) /// Generic count bits. HANDLE_TARGET_OPCODE(G_CTPOP) /// Generic byte swap. HANDLE_TARGET_OPCODE(G_BSWAP) /// Generic bit reverse. HANDLE_TARGET_OPCODE(G_BITREVERSE) /// Floating point ceil. HANDLE_TARGET_OPCODE(G_FCEIL) /// Floating point cosine. HANDLE_TARGET_OPCODE(G_FCOS) /// Floating point sine. HANDLE_TARGET_OPCODE(G_FSIN) /// Floating point square root. HANDLE_TARGET_OPCODE(G_FSQRT) /// Floating point floor. HANDLE_TARGET_OPCODE(G_FFLOOR) /// Floating point round to next integer. HANDLE_TARGET_OPCODE(G_FRINT) /// Floating point round to nearest integer. HANDLE_TARGET_OPCODE(G_FNEARBYINT) /// Generic AddressSpaceCast. HANDLE_TARGET_OPCODE(G_ADDRSPACE_CAST) /// Generic block address HANDLE_TARGET_OPCODE(G_BLOCK_ADDR) /// Generic jump table address HANDLE_TARGET_OPCODE(G_JUMP_TABLE) /// Generic dynamic stack allocation. HANDLE_TARGET_OPCODE(G_DYN_STACKALLOC) /// read_register intrinsic HANDLE_TARGET_OPCODE(G_READ_REGISTER) /// write_register intrinsic HANDLE_TARGET_OPCODE(G_WRITE_REGISTER) /// Marker for the end of the generic opcode. /// This is used to check if an opcode is in the range of the /// generic opcodes. HANDLE_TARGET_OPCODE_MARKER(PRE_ISEL_GENERIC_OPCODE_END, G_WRITE_REGISTER) /// BUILTIN_OP_END - This must be the last enum value in this list. /// The target-specific post-isel opcode values start here. HANDLE_TARGET_OPCODE_MARKER(GENERIC_OP_END, PRE_ISEL_GENERIC_OPCODE_END)