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Now that we have MVT::FIRST_VALUETYPE (r225362), we can provide a method checking that the MVT is valid, that is, it's in [FIRST_VALUETYPE, LAST_VALUETYPE[. This commit also uses it in a few asserts, that would previously accept invalid MVTs, such as the default constructed -1. In that case, the code following those asserts would do an out-of-bounds array access. Using MVT::isValid, those assertions fail as expected when passed invalid MVTs. It feels clunky to have such a validity checking function, but it's at least better than the alternative of broken manual checks. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@225411 91177308-0d34-0410-b5e6-96231b3b80d8
637 lines
20 KiB
C++
637 lines
20 KiB
C++
//===- CodeGen/MachineValueType.h - Machine-Level types ---------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file defines the set of machine-level target independent types which
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// legal values in the code generator use.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_CODEGEN_MACHINEVALUETYPE_H
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#define LLVM_CODEGEN_MACHINEVALUETYPE_H
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#include "llvm/ADT/iterator_range.h"
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#include "llvm/Support/ErrorHandling.h"
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#include "llvm/Support/MathExtras.h"
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namespace llvm {
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class Type;
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/// MVT - Machine Value Type. Every type that is supported natively by some
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/// processor targeted by LLVM occurs here. This means that any legal value
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/// type can be represented by an MVT.
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class MVT {
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public:
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enum SimpleValueType {
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// INVALID_SIMPLE_VALUE_TYPE - Simple value types less than zero are
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// considered extended value types.
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INVALID_SIMPLE_VALUE_TYPE = -1,
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// If you change this numbering, you must change the values in
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// ValueTypes.td as well!
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Other = 0, // This is a non-standard value
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i1 = 1, // This is a 1 bit integer value
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i8 = 2, // This is an 8 bit integer value
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i16 = 3, // This is a 16 bit integer value
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i32 = 4, // This is a 32 bit integer value
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i64 = 5, // This is a 64 bit integer value
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i128 = 6, // This is a 128 bit integer value
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FIRST_INTEGER_VALUETYPE = i1,
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LAST_INTEGER_VALUETYPE = i128,
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f16 = 7, // This is a 16 bit floating point value
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f32 = 8, // This is a 32 bit floating point value
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f64 = 9, // This is a 64 bit floating point value
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f80 = 10, // This is a 80 bit floating point value
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f128 = 11, // This is a 128 bit floating point value
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ppcf128 = 12, // This is a PPC 128-bit floating point value
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FIRST_FP_VALUETYPE = f16,
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LAST_FP_VALUETYPE = ppcf128,
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v2i1 = 13, // 2 x i1
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v4i1 = 14, // 4 x i1
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v8i1 = 15, // 8 x i1
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v16i1 = 16, // 16 x i1
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v32i1 = 17, // 32 x i1
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v64i1 = 18, // 64 x i1
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v1i8 = 19, // 1 x i8
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v2i8 = 20, // 2 x i8
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v4i8 = 21, // 4 x i8
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v8i8 = 22, // 8 x i8
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v16i8 = 23, // 16 x i8
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v32i8 = 24, // 32 x i8
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v64i8 = 25, // 64 x i8
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v1i16 = 26, // 1 x i16
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v2i16 = 27, // 2 x i16
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v4i16 = 28, // 4 x i16
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v8i16 = 29, // 8 x i16
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v16i16 = 30, // 16 x i16
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v32i16 = 31, // 32 x i16
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v1i32 = 32, // 1 x i32
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v2i32 = 33, // 2 x i32
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v4i32 = 34, // 4 x i32
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v8i32 = 35, // 8 x i32
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v16i32 = 36, // 16 x i32
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v1i64 = 37, // 1 x i64
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v2i64 = 38, // 2 x i64
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v4i64 = 39, // 4 x i64
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v8i64 = 40, // 8 x i64
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v16i64 = 41, // 16 x i64
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FIRST_INTEGER_VECTOR_VALUETYPE = v2i1,
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LAST_INTEGER_VECTOR_VALUETYPE = v16i64,
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v2f16 = 42, // 2 x f16
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v4f16 = 43, // 4 x f16
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v8f16 = 44, // 8 x f16
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v1f32 = 45, // 1 x f32
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v2f32 = 46, // 2 x f32
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v4f32 = 47, // 4 x f32
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v8f32 = 48, // 8 x f32
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v16f32 = 49, // 16 x f32
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v1f64 = 50, // 1 x f64
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v2f64 = 51, // 2 x f64
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v4f64 = 52, // 4 x f64
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v8f64 = 53, // 8 x f64
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FIRST_FP_VECTOR_VALUETYPE = v2f16,
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LAST_FP_VECTOR_VALUETYPE = v8f64,
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FIRST_VECTOR_VALUETYPE = v2i1,
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LAST_VECTOR_VALUETYPE = v8f64,
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x86mmx = 54, // This is an X86 MMX value
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Glue = 55, // This glues nodes together during pre-RA sched
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isVoid = 56, // This has no value
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Untyped = 57, // This value takes a register, but has
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// unspecified type. The register class
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// will be determined by the opcode.
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FIRST_VALUETYPE = 0, // This is always the beginning of the list.
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LAST_VALUETYPE = 58, // This always remains at the end of the list.
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// This is the current maximum for LAST_VALUETYPE.
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// MVT::MAX_ALLOWED_VALUETYPE is used for asserts and to size bit vectors
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// This value must be a multiple of 32.
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MAX_ALLOWED_VALUETYPE = 64,
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// Metadata - This is MDNode or MDString.
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Metadata = 250,
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// iPTRAny - An int value the size of the pointer of the current
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// target to any address space. This must only be used internal to
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// tblgen. Other than for overloading, we treat iPTRAny the same as iPTR.
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iPTRAny = 251,
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// vAny - A vector with any length and element size. This is used
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// for intrinsics that have overloadings based on vector types.
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// This is only for tblgen's consumption!
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vAny = 252,
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// fAny - Any floating-point or vector floating-point value. This is used
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// for intrinsics that have overloadings based on floating-point types.
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// This is only for tblgen's consumption!
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fAny = 253,
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// iAny - An integer or vector integer value of any bit width. This is
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// used for intrinsics that have overloadings based on integer bit widths.
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// This is only for tblgen's consumption!
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iAny = 254,
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// iPTR - An int value the size of the pointer of the current
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// target. This should only be used internal to tblgen!
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iPTR = 255
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};
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SimpleValueType SimpleTy;
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MVT() : SimpleTy((SimpleValueType)(INVALID_SIMPLE_VALUE_TYPE)) {}
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MVT(SimpleValueType SVT) : SimpleTy(SVT) { }
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bool operator>(const MVT& S) const { return SimpleTy > S.SimpleTy; }
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bool operator<(const MVT& S) const { return SimpleTy < S.SimpleTy; }
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bool operator==(const MVT& S) const { return SimpleTy == S.SimpleTy; }
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bool operator!=(const MVT& S) const { return SimpleTy != S.SimpleTy; }
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bool operator>=(const MVT& S) const { return SimpleTy >= S.SimpleTy; }
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bool operator<=(const MVT& S) const { return SimpleTy <= S.SimpleTy; }
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/// isValid - Return true if this is a valid simple valuetype.
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bool isValid() const {
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return (SimpleTy >= MVT::FIRST_VALUETYPE &&
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SimpleTy < MVT::LAST_VALUETYPE);
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}
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/// isFloatingPoint - Return true if this is a FP, or a vector FP type.
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bool isFloatingPoint() const {
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return ((SimpleTy >= MVT::FIRST_FP_VALUETYPE &&
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SimpleTy <= MVT::LAST_FP_VALUETYPE) ||
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(SimpleTy >= MVT::FIRST_FP_VECTOR_VALUETYPE &&
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SimpleTy <= MVT::LAST_FP_VECTOR_VALUETYPE));
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}
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/// isInteger - Return true if this is an integer, or a vector integer type.
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bool isInteger() const {
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return ((SimpleTy >= MVT::FIRST_INTEGER_VALUETYPE &&
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SimpleTy <= MVT::LAST_INTEGER_VALUETYPE) ||
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(SimpleTy >= MVT::FIRST_INTEGER_VECTOR_VALUETYPE &&
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SimpleTy <= MVT::LAST_INTEGER_VECTOR_VALUETYPE));
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}
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/// isVector - Return true if this is a vector value type.
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bool isVector() const {
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return (SimpleTy >= MVT::FIRST_VECTOR_VALUETYPE &&
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SimpleTy <= MVT::LAST_VECTOR_VALUETYPE);
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}
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/// is16BitVector - Return true if this is a 16-bit vector type.
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bool is16BitVector() const {
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return (SimpleTy == MVT::v2i8 || SimpleTy == MVT::v1i16 ||
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SimpleTy == MVT::v16i1);
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}
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/// is32BitVector - Return true if this is a 32-bit vector type.
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bool is32BitVector() const {
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return (SimpleTy == MVT::v4i8 || SimpleTy == MVT::v2i16 ||
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SimpleTy == MVT::v1i32 || SimpleTy == MVT::v2f16 ||
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SimpleTy == MVT::v1f32);
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}
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/// is64BitVector - Return true if this is a 64-bit vector type.
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bool is64BitVector() const {
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return (SimpleTy == MVT::v8i8 || SimpleTy == MVT::v4i16 ||
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SimpleTy == MVT::v2i32 || SimpleTy == MVT::v1i64 ||
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SimpleTy == MVT::v4f16 || SimpleTy == MVT::v2f32 ||
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SimpleTy == MVT::v1f64);
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}
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/// is128BitVector - Return true if this is a 128-bit vector type.
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bool is128BitVector() const {
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return (SimpleTy == MVT::v16i8 || SimpleTy == MVT::v8i16 ||
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SimpleTy == MVT::v4i32 || SimpleTy == MVT::v2i64 ||
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SimpleTy == MVT::v8f16 || SimpleTy == MVT::v4f32 ||
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SimpleTy == MVT::v2f64);
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}
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/// is256BitVector - Return true if this is a 256-bit vector type.
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bool is256BitVector() const {
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return (SimpleTy == MVT::v8f32 || SimpleTy == MVT::v4f64 ||
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SimpleTy == MVT::v32i8 || SimpleTy == MVT::v16i16 ||
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SimpleTy == MVT::v8i32 || SimpleTy == MVT::v4i64);
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}
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/// is512BitVector - Return true if this is a 512-bit vector type.
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bool is512BitVector() const {
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return (SimpleTy == MVT::v8f64 || SimpleTy == MVT::v16f32 ||
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SimpleTy == MVT::v64i8 || SimpleTy == MVT::v32i16 ||
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SimpleTy == MVT::v8i64 || SimpleTy == MVT::v16i32);
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}
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/// is1024BitVector - Return true if this is a 1024-bit vector type.
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bool is1024BitVector() const {
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return (SimpleTy == MVT::v16i64);
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}
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/// isOverloaded - Return true if this is an overloaded type for TableGen.
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bool isOverloaded() const {
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return (SimpleTy==MVT::iAny || SimpleTy==MVT::fAny ||
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SimpleTy==MVT::vAny || SimpleTy==MVT::iPTRAny);
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}
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/// isPow2VectorType - Returns true if the given vector is a power of 2.
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bool isPow2VectorType() const {
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unsigned NElts = getVectorNumElements();
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return !(NElts & (NElts - 1));
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}
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/// getPow2VectorType - Widens the length of the given vector MVT up to
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/// the nearest power of 2 and returns that type.
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MVT getPow2VectorType() const {
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if (isPow2VectorType())
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return *this;
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unsigned NElts = getVectorNumElements();
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unsigned Pow2NElts = 1 << Log2_32_Ceil(NElts);
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return MVT::getVectorVT(getVectorElementType(), Pow2NElts);
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}
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/// getScalarType - If this is a vector type, return the element type,
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/// otherwise return this.
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MVT getScalarType() const {
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return isVector() ? getVectorElementType() : *this;
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}
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MVT getVectorElementType() const {
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switch (SimpleTy) {
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default:
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llvm_unreachable("Not a vector MVT!");
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case v2i1 :
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case v4i1 :
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case v8i1 :
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case v16i1 :
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case v32i1 :
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case v64i1: return i1;
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case v1i8 :
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case v2i8 :
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case v4i8 :
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case v8i8 :
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case v16i8:
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case v32i8:
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case v64i8: return i8;
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case v1i16:
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case v2i16:
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case v4i16:
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case v8i16:
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case v16i16:
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case v32i16: return i16;
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case v1i32:
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case v2i32:
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case v4i32:
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case v8i32:
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case v16i32: return i32;
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case v1i64:
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case v2i64:
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case v4i64:
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case v8i64:
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case v16i64: return i64;
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case v2f16:
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case v4f16:
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case v8f16: return f16;
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case v1f32:
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case v2f32:
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case v4f32:
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case v8f32:
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case v16f32: return f32;
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case v1f64:
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case v2f64:
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case v4f64:
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case v8f64: return f64;
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}
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}
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unsigned getVectorNumElements() const {
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switch (SimpleTy) {
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default:
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llvm_unreachable("Not a vector MVT!");
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case v32i1:
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case v32i8:
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case v32i16: return 32;
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case v64i1:
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case v64i8: return 64;
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case v16i1:
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case v16i8:
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case v16i16:
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case v16i32:
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case v16i64:
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case v16f32: return 16;
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case v8i1 :
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case v8i8 :
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case v8i16:
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case v8i32:
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case v8i64:
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case v8f16:
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case v8f32:
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case v8f64: return 8;
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case v4i1:
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case v4i8:
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case v4i16:
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case v4i32:
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case v4i64:
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case v4f16:
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case v4f32:
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case v4f64: return 4;
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case v2i1:
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case v2i8:
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case v2i16:
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case v2i32:
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case v2i64:
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case v2f16:
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case v2f32:
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case v2f64: return 2;
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case v1i8:
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case v1i16:
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case v1i32:
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case v1i64:
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case v1f32:
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case v1f64: return 1;
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}
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}
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unsigned getSizeInBits() const {
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switch (SimpleTy) {
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default:
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llvm_unreachable("getSizeInBits called on extended MVT.");
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case Other:
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llvm_unreachable("Value type is non-standard value, Other.");
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case iPTR:
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llvm_unreachable("Value type size is target-dependent. Ask TLI.");
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case iPTRAny:
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case iAny:
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case fAny:
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case vAny:
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llvm_unreachable("Value type is overloaded.");
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case Metadata:
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llvm_unreachable("Value type is metadata.");
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case i1 : return 1;
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case v2i1: return 2;
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case v4i1: return 4;
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case i8 :
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case v1i8:
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case v8i1: return 8;
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case i16 :
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case f16:
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case v16i1:
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case v2i8:
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case v1i16: return 16;
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case f32 :
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case i32 :
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case v32i1:
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case v4i8:
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case v2i16:
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case v2f16:
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case v1f32:
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case v1i32: return 32;
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case x86mmx:
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case f64 :
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case i64 :
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case v64i1:
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case v8i8:
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case v4i16:
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case v2i32:
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case v1i64:
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case v4f16:
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case v2f32:
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case v1f64: return 64;
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case f80 : return 80;
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case f128:
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case ppcf128:
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case i128:
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case v16i8:
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case v8i16:
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case v4i32:
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case v2i64:
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case v8f16:
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case v4f32:
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case v2f64: return 128;
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case v32i8:
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case v16i16:
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case v8i32:
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case v4i64:
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case v8f32:
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case v4f64: return 256;
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case v64i8:
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case v32i16:
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case v16i32:
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case v8i64:
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case v16f32:
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case v8f64: return 512;
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case v16i64:return 1024;
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}
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}
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unsigned getScalarSizeInBits() const {
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return getScalarType().getSizeInBits();
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}
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/// getStoreSize - Return the number of bytes overwritten by a store
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/// of the specified value type.
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unsigned getStoreSize() const {
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return (getSizeInBits() + 7) / 8;
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}
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/// getStoreSizeInBits - Return the number of bits overwritten by a store
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/// of the specified value type.
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unsigned getStoreSizeInBits() const {
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return getStoreSize() * 8;
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}
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/// Return true if this has more bits than VT.
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bool bitsGT(MVT VT) const {
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return getSizeInBits() > VT.getSizeInBits();
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}
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/// Return true if this has no less bits than VT.
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bool bitsGE(MVT VT) const {
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return getSizeInBits() >= VT.getSizeInBits();
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}
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/// Return true if this has less bits than VT.
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bool bitsLT(MVT VT) const {
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return getSizeInBits() < VT.getSizeInBits();
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}
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/// Return true if this has no more bits than VT.
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bool bitsLE(MVT VT) const {
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return getSizeInBits() <= VT.getSizeInBits();
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}
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static MVT getFloatingPointVT(unsigned BitWidth) {
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|
switch (BitWidth) {
|
|
default:
|
|
llvm_unreachable("Bad bit width!");
|
|
case 16:
|
|
return MVT::f16;
|
|
case 32:
|
|
return MVT::f32;
|
|
case 64:
|
|
return MVT::f64;
|
|
case 80:
|
|
return MVT::f80;
|
|
case 128:
|
|
return MVT::f128;
|
|
}
|
|
}
|
|
|
|
static MVT getIntegerVT(unsigned BitWidth) {
|
|
switch (BitWidth) {
|
|
default:
|
|
return (MVT::SimpleValueType)(MVT::INVALID_SIMPLE_VALUE_TYPE);
|
|
case 1:
|
|
return MVT::i1;
|
|
case 8:
|
|
return MVT::i8;
|
|
case 16:
|
|
return MVT::i16;
|
|
case 32:
|
|
return MVT::i32;
|
|
case 64:
|
|
return MVT::i64;
|
|
case 128:
|
|
return MVT::i128;
|
|
}
|
|
}
|
|
|
|
static MVT getVectorVT(MVT VT, unsigned NumElements) {
|
|
switch (VT.SimpleTy) {
|
|
default:
|
|
break;
|
|
case MVT::i1:
|
|
if (NumElements == 2) return MVT::v2i1;
|
|
if (NumElements == 4) return MVT::v4i1;
|
|
if (NumElements == 8) return MVT::v8i1;
|
|
if (NumElements == 16) return MVT::v16i1;
|
|
if (NumElements == 32) return MVT::v32i1;
|
|
if (NumElements == 64) return MVT::v64i1;
|
|
break;
|
|
case MVT::i8:
|
|
if (NumElements == 1) return MVT::v1i8;
|
|
if (NumElements == 2) return MVT::v2i8;
|
|
if (NumElements == 4) return MVT::v4i8;
|
|
if (NumElements == 8) return MVT::v8i8;
|
|
if (NumElements == 16) return MVT::v16i8;
|
|
if (NumElements == 32) return MVT::v32i8;
|
|
if (NumElements == 64) return MVT::v64i8;
|
|
break;
|
|
case MVT::i16:
|
|
if (NumElements == 1) return MVT::v1i16;
|
|
if (NumElements == 2) return MVT::v2i16;
|
|
if (NumElements == 4) return MVT::v4i16;
|
|
if (NumElements == 8) return MVT::v8i16;
|
|
if (NumElements == 16) return MVT::v16i16;
|
|
if (NumElements == 32) return MVT::v32i16;
|
|
break;
|
|
case MVT::i32:
|
|
if (NumElements == 1) return MVT::v1i32;
|
|
if (NumElements == 2) return MVT::v2i32;
|
|
if (NumElements == 4) return MVT::v4i32;
|
|
if (NumElements == 8) return MVT::v8i32;
|
|
if (NumElements == 16) return MVT::v16i32;
|
|
break;
|
|
case MVT::i64:
|
|
if (NumElements == 1) return MVT::v1i64;
|
|
if (NumElements == 2) return MVT::v2i64;
|
|
if (NumElements == 4) return MVT::v4i64;
|
|
if (NumElements == 8) return MVT::v8i64;
|
|
if (NumElements == 16) return MVT::v16i64;
|
|
break;
|
|
case MVT::f16:
|
|
if (NumElements == 2) return MVT::v2f16;
|
|
if (NumElements == 4) return MVT::v4f16;
|
|
if (NumElements == 8) return MVT::v8f16;
|
|
break;
|
|
case MVT::f32:
|
|
if (NumElements == 1) return MVT::v1f32;
|
|
if (NumElements == 2) return MVT::v2f32;
|
|
if (NumElements == 4) return MVT::v4f32;
|
|
if (NumElements == 8) return MVT::v8f32;
|
|
if (NumElements == 16) return MVT::v16f32;
|
|
break;
|
|
case MVT::f64:
|
|
if (NumElements == 1) return MVT::v1f64;
|
|
if (NumElements == 2) return MVT::v2f64;
|
|
if (NumElements == 4) return MVT::v4f64;
|
|
if (NumElements == 8) return MVT::v8f64;
|
|
break;
|
|
}
|
|
return (MVT::SimpleValueType)(MVT::INVALID_SIMPLE_VALUE_TYPE);
|
|
}
|
|
|
|
/// Return the value type corresponding to the specified type. This returns
|
|
/// all pointers as iPTR. If HandleUnknown is true, unknown types are
|
|
/// returned as Other, otherwise they are invalid.
|
|
static MVT getVT(Type *Ty, bool HandleUnknown = false);
|
|
|
|
private:
|
|
/// A simple iterator over the MVT::SimpleValueType enum.
|
|
struct mvt_iterator {
|
|
SimpleValueType VT;
|
|
mvt_iterator(SimpleValueType VT) : VT(VT) {}
|
|
MVT operator*() const { return VT; }
|
|
bool operator!=(const mvt_iterator &LHS) const { return VT != LHS.VT; }
|
|
mvt_iterator& operator++() {
|
|
VT = (MVT::SimpleValueType)((int)VT + 1);
|
|
assert((int)VT <= MVT::MAX_ALLOWED_VALUETYPE &&
|
|
"MVT iterator overflowed.");
|
|
return *this;
|
|
}
|
|
};
|
|
/// A range of the MVT::SimpleValueType enum.
|
|
typedef iterator_range<mvt_iterator> mvt_range;
|
|
|
|
public:
|
|
/// SimpleValueType Iteration
|
|
/// @{
|
|
static mvt_range all_valuetypes() {
|
|
return mvt_range(MVT::FIRST_VALUETYPE, MVT::LAST_VALUETYPE);
|
|
}
|
|
static mvt_range integer_valuetypes() {
|
|
return mvt_range(MVT::FIRST_INTEGER_VALUETYPE,
|
|
(MVT::SimpleValueType)(MVT::LAST_INTEGER_VALUETYPE + 1));
|
|
}
|
|
static mvt_range fp_valuetypes() {
|
|
return mvt_range(MVT::FIRST_FP_VALUETYPE,
|
|
(MVT::SimpleValueType)(MVT::LAST_FP_VALUETYPE + 1));
|
|
}
|
|
static mvt_range vector_valuetypes() {
|
|
return mvt_range(MVT::FIRST_VECTOR_VALUETYPE,
|
|
(MVT::SimpleValueType)(MVT::LAST_VECTOR_VALUETYPE + 1));
|
|
}
|
|
static mvt_range integer_vector_valuetypes() {
|
|
return mvt_range(
|
|
MVT::FIRST_INTEGER_VECTOR_VALUETYPE,
|
|
(MVT::SimpleValueType)(MVT::LAST_INTEGER_VECTOR_VALUETYPE + 1));
|
|
}
|
|
static mvt_range fp_vector_valuetypes() {
|
|
return mvt_range(
|
|
MVT::FIRST_FP_VECTOR_VALUETYPE,
|
|
(MVT::SimpleValueType)(MVT::LAST_FP_VECTOR_VALUETYPE + 1));
|
|
}
|
|
/// @}
|
|
};
|
|
|
|
} // End llvm namespace
|
|
|
|
#endif
|