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llvm-mirror/include/llvm/Support/TargetOpcodes.def
Jessica Paquette 24c94cfae0 [GlobalISel] Add a G_FNEARBYINT opcode
For eventually selecting llvm.nearbyint. Equivalent to the SelectionDAG
nearbyint node.

Update legalizer-info-validation.mir.

Differential Revision: https://reviews.llvm.org/D60921

llvm-svn: 359201
2019-04-25 16:36:03 +00:00

561 lines
19 KiB
C++

//===-- 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)
/// 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 store.
HANDLE_TARGET_OPCODE(G_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)
/// 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)
// 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 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)
/// Generic FP canonicalize value.
HANDLE_TARGET_OPCODE(G_FCANONICALIZE)
/// Generic pointer offset
HANDLE_TARGET_OPCODE(G_GEP)
/// 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 BRANCH instruction. This is an unconditional branch.
HANDLE_TARGET_OPCODE(G_BR)
/// 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)
/// 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)
// TODO: Add more generic opcodes as we move along.
/// 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_BLOCK_ADDR)
/// 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)