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//===- CodeGen/ValueTypes.h - Low-Level Target independ. types --*- C++ -*-===//
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// The LLVM Compiler Infrastructure
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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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// This file defines the set of low-level target independent types which various
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// values in the code generator are. This allows the target specific behavior
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// of instructions to be described to target independent passes.
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_CODEGEN_VALUETYPES_H
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#define LLVM_CODEGEN_VALUETYPES_H
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#include "llvm/Support/DataTypes.h"
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#include "llvm/Support/ErrorHandling.h"
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#include "llvm/Support/MathExtras.h"
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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 a MVT.
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enum SimpleValueType {
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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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v16i8 = 16, // 16 x i8
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v32i8 = 17, // 32 x i8
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v2i16 = 18, // 2 x i16
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v4i16 = 19, // 4 x i16
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v8i16 = 20, // 8 x i16
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v16i16 = 21, // 16 x i16
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v2i32 = 22, // 2 x i32
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v4i32 = 23, // 4 x i32
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v8i32 = 24, // 8 x i32
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v1i64 = 25, // 1 x i64
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v2i64 = 26, // 2 x i64
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v4i64 = 27, // 4 x i64
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v8i64 = 28, // 8 x i64
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v2f16 = 29, // 2 x f16
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v2f32 = 30, // 2 x f32
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v4f32 = 31, // 4 x f32
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v8f32 = 32, // 8 x f32
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v2f64 = 33, // 2 x f64
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v4f64 = 34, // 4 x f64
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FIRST_VECTOR_VALUETYPE = v2i8,
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LAST_VECTOR_VALUETYPE = v4f64,
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FIRST_FP_VECTOR_VALUETYPE = v2f16,
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LAST_FP_VECTOR_VALUETYPE = v4f64,
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x86mmx = 35, // This is an X86 MMX value
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Glue = 36, // This glues nodes together during pre-RA sched
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isVoid = 37, // This has no value
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Untyped = 38, // 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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LAST_VALUETYPE = 39, // 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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// 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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// 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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// 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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// 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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// 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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// LastSimpleValueType - The greatest valid SimpleValueType value.
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LastSimpleValueType = 255,
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// INVALID_SIMPLE_VALUE_TYPE - Simple value types greater than or equal
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// to this are considered extended value types.
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INVALID_SIMPLE_VALUE_TYPE = LastSimpleValueType + 1
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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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/// 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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/// 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::v2i8 && SimpleTy <= MVT::v8i64));
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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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/// 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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/// 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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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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/// 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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MVT getVectorElementType() const {
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return (MVT::SimpleValueType)(MVT::INVALID_SIMPLE_VALUE_TYPE);
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case v32i8: return i8;
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case v16i16: return i16;
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case v8i32: return i32;
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case v8i64: return i64;
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case v2f16: return f16;
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case v8f32: return f32;
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case v4f64: return f64;
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unsigned getVectorNumElements() const {
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case v32i8: return 32;
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case v16i16: return 16;
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case v8f32: return 8;
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case v4f64: return 4;
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case v2f64: return 2;
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case v1i64: return 1;
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unsigned getSizeInBits() const {
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llvm_unreachable("Value type size is target-dependent. Ask TLI.");
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llvm_unreachable("Value type is overloaded.");
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llvm_unreachable("getSizeInBits called on extended MVT.");
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case v2i8: return 16;
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case v2f16: return 32;
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case v2f32: return 64;
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case f80 : return 80;
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case v2f64: return 128;
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case v4f64: return 256;
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case v8i64: return 512;
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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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/// 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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static MVT getFloatingPointVT(unsigned BitWidth) {
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llvm_unreachable("Bad bit width!");
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static MVT getIntegerVT(unsigned BitWidth) {
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return (MVT::SimpleValueType)(MVT::INVALID_SIMPLE_VALUE_TYPE);
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static MVT getVectorVT(MVT VT, unsigned NumElements) {
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switch (VT.SimpleTy) {
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if (NumElements == 2) return MVT::v2i8;
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if (NumElements == 4) return MVT::v4i8;
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if (NumElements == 8) return MVT::v8i8;
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if (NumElements == 16) return MVT::v16i8;
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if (NumElements == 32) return MVT::v32i8;
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if (NumElements == 2) return MVT::v2i16;
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if (NumElements == 4) return MVT::v4i16;
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if (NumElements == 8) return MVT::v8i16;
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if (NumElements == 16) return MVT::v16i16;
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if (NumElements == 2) return MVT::v2i32;
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if (NumElements == 4) return MVT::v4i32;
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if (NumElements == 8) return MVT::v8i32;
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if (NumElements == 1) return MVT::v1i64;
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if (NumElements == 2) return MVT::v2i64;
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if (NumElements == 4) return MVT::v4i64;
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if (NumElements == 8) return MVT::v8i64;
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if (NumElements == 2) return MVT::v2f16;
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if (NumElements == 2) return MVT::v2f32;
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if (NumElements == 4) return MVT::v4f32;
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if (NumElements == 8) return MVT::v8f32;
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if (NumElements == 2) return MVT::v2f64;
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if (NumElements == 4) return MVT::v4f64;
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return (MVT::SimpleValueType)(MVT::INVALID_SIMPLE_VALUE_TYPE);
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/// EVT - Extended Value Type. Capable of holding value types which are not
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/// native for any processor (such as the i12345 type), as well as the types
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/// a MVT can represent.
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EVT() : V((MVT::SimpleValueType)(MVT::INVALID_SIMPLE_VALUE_TYPE)),
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EVT(MVT::SimpleValueType SVT) : V(SVT), LLVMTy(0) { }
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EVT(MVT S) : V(S), LLVMTy(0) {}
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bool operator==(EVT VT) const {
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return !(*this != VT);
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bool operator!=(EVT VT) const {
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if (V.SimpleTy != VT.V.SimpleTy)
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if (V.SimpleTy == MVT::INVALID_SIMPLE_VALUE_TYPE)
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return LLVMTy != VT.LLVMTy;
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/// getFloatingPointVT - Returns the EVT that represents a floating point
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/// type with the given number of bits. There are two floating point types
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/// with 128 bits - this returns f128 rather than ppcf128.
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static EVT getFloatingPointVT(unsigned BitWidth) {
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return MVT::getFloatingPointVT(BitWidth);
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/// getIntegerVT - Returns the EVT that represents an integer with the given
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static EVT getIntegerVT(LLVMContext &Context, unsigned BitWidth) {
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MVT M = MVT::getIntegerVT(BitWidth);
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if (M.SimpleTy != MVT::INVALID_SIMPLE_VALUE_TYPE)
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return getExtendedIntegerVT(Context, BitWidth);
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/// getVectorVT - Returns the EVT that represents a vector NumElements in
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/// length, where each element is of type VT.
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static EVT getVectorVT(LLVMContext &Context, EVT VT, unsigned NumElements) {
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MVT M = MVT::getVectorVT(VT.V, NumElements);
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if (M.SimpleTy != MVT::INVALID_SIMPLE_VALUE_TYPE)
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return getExtendedVectorVT(Context, VT, NumElements);
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/// changeVectorElementTypeToInteger - Return a vector with the same number
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/// of elements as this vector, but with the element type converted to an
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/// integer type with the same bitwidth.
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EVT changeVectorElementTypeToInteger() const {
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return changeExtendedVectorElementTypeToInteger();
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MVT EltTy = getSimpleVT().getVectorElementType();
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unsigned BitWidth = EltTy.getSizeInBits();
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MVT IntTy = MVT::getIntegerVT(BitWidth);
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MVT VecTy = MVT::getVectorVT(IntTy, getVectorNumElements());
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assert(VecTy != MVT::INVALID_SIMPLE_VALUE_TYPE &&
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"Simple vector VT not representable by simple integer vector VT!");
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/// isSimple - Test if the given EVT is simple (as opposed to being
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bool isSimple() const {
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return V.SimpleTy <= MVT::LastSimpleValueType;
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/// isExtended - Test if the given EVT is extended (as opposed to
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bool isExtended() const {
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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 isSimple() ? V.isFloatingPoint() : isExtendedFloatingPoint();
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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 isSimple() ? V.isInteger() : isExtendedInteger();
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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 isSimple() ? V.isVector() : isExtendedVector();
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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 isExtended64BitVector();
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return (V == MVT::v8i8 || V==MVT::v4i16 || V==MVT::v2i32 ||
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V == MVT::v1i64 || V==MVT::v2f32);
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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 isExtended128BitVector();
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return (V==MVT::v16i8 || V==MVT::v8i16 || V==MVT::v4i32 ||
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V==MVT::v2i64 || V==MVT::v4f32 || V==MVT::v2f64);
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/// is256BitVector - Return true if this is a 256-bit vector type.
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inline bool is256BitVector() const {
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return isExtended256BitVector();
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return (V == MVT::v8f32 || V == MVT::v4f64 || V == MVT::v32i8 ||
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V == MVT::v16i16 || V == MVT::v8i32 || V == MVT::v4i64);
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/// is512BitVector - Return true if this is a 512-bit vector type.
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inline bool is512BitVector() const {
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return isSimple() ? (V == MVT::v8i64) : isExtended512BitVector();
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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 (V==MVT::iAny || V==MVT::fAny || V==MVT::vAny || V==MVT::iPTRAny);
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/// isByteSized - Return true if the bit size is a multiple of 8.
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bool isByteSized() const {
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return (getSizeInBits() & 7) == 0;
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/// isRound - Return true if the size is a power-of-two number of bytes.
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bool isRound() const {
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unsigned BitSize = getSizeInBits();
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return BitSize >= 8 && !(BitSize & (BitSize - 1));
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/// bitsEq - Return true if this has the same number of bits as VT.
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bool bitsEq(EVT VT) const {
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if (EVT::operator==(VT)) return true;
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return getSizeInBits() == VT.getSizeInBits();
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/// bitsGT - Return true if this has more bits than VT.
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bool bitsGT(EVT VT) const {
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if (EVT::operator==(VT)) return false;
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return getSizeInBits() > VT.getSizeInBits();
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/// bitsGE - Return true if this has no less bits than VT.
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bool bitsGE(EVT VT) const {
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if (EVT::operator==(VT)) return true;
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return getSizeInBits() >= VT.getSizeInBits();
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/// bitsLT - Return true if this has less bits than VT.
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bool bitsLT(EVT VT) const {
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if (EVT::operator==(VT)) return false;
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return getSizeInBits() < VT.getSizeInBits();
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/// bitsLE - Return true if this has no more bits than VT.
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bool bitsLE(EVT VT) const {
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if (EVT::operator==(VT)) return true;
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return getSizeInBits() <= VT.getSizeInBits();
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/// getSimpleVT - Return the SimpleValueType held in the specified
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MVT getSimpleVT() const {
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assert(isSimple() && "Expected a SimpleValueType!");
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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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EVT getScalarType() const {
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return isVector() ? getVectorElementType() : *this;
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/// getVectorElementType - Given a vector type, return the type of
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EVT getVectorElementType() const {
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assert(isVector() && "Invalid vector type!");
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return V.getVectorElementType();
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return getExtendedVectorElementType();
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/// getVectorNumElements - Given a vector type, return the number of
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/// elements it contains.
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unsigned getVectorNumElements() const {
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assert(isVector() && "Invalid vector type!");
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return V.getVectorNumElements();
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return getExtendedVectorNumElements();
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/// getSizeInBits - Return the size of the specified value type in bits.
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unsigned getSizeInBits() const {
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return V.getSizeInBits();
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return getExtendedSizeInBits();
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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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/// 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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/// getRoundIntegerType - Rounds the bit-width of the given integer EVT up
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/// to the nearest power of two (and at least to eight), and returns the
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/// integer EVT with that number of bits.
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EVT getRoundIntegerType(LLVMContext &Context) const {
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assert(isInteger() && !isVector() && "Invalid integer type!");
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unsigned BitWidth = getSizeInBits();
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return getIntegerVT(Context, 1 << Log2_32_Ceil(BitWidth));
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/// getHalfSizedIntegerVT - Finds the smallest simple value type that is
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/// greater than or equal to half the width of this EVT. If no simple
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/// value type can be found, an extended integer value type of half the
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/// size (rounded up) is returned.
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EVT getHalfSizedIntegerVT(LLVMContext &Context) const {
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assert(isInteger() && !isVector() && "Invalid integer type!");
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unsigned EVTSize = getSizeInBits();
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for (unsigned IntVT = MVT::FIRST_INTEGER_VALUETYPE;
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IntVT <= MVT::LAST_INTEGER_VALUETYPE; ++IntVT) {
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EVT HalfVT = EVT((MVT::SimpleValueType)IntVT);
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if (HalfVT.getSizeInBits() * 2 >= EVTSize)
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return getIntegerVT(Context, (EVTSize + 1) / 2);
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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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/// getPow2VectorType - Widens the length of the given vector EVT up to
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/// the nearest power of 2 and returns that type.
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EVT getPow2VectorType(LLVMContext &Context) const {
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if (!isPow2VectorType()) {
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unsigned NElts = getVectorNumElements();
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unsigned Pow2NElts = 1 << Log2_32_Ceil(NElts);
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return EVT::getVectorVT(Context, getVectorElementType(), Pow2NElts);
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/// getEVTString - This function returns value type as a string,
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std::string getEVTString() const;
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/// getTypeForEVT - This method returns an LLVM type corresponding to the
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/// specified EVT. For integer types, this returns an unsigned type. Note
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/// that this will abort for types that cannot be represented.
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Type *getTypeForEVT(LLVMContext &Context) const;
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/// getEVT - Return the value type corresponding to the specified type.
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/// This returns all pointers as iPTR. If HandleUnknown is true, unknown
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/// types are returned as Other, otherwise they are invalid.
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static EVT getEVT(Type *Ty, bool HandleUnknown = false);
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intptr_t getRawBits() {
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return (intptr_t)(LLVMTy);
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/// compareRawBits - A meaningless but well-behaved order, useful for
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/// constructing containers.
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struct compareRawBits {
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bool operator()(EVT L, EVT R) const {
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if (L.V.SimpleTy == R.V.SimpleTy)
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return L.LLVMTy < R.LLVMTy;
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return L.V.SimpleTy < R.V.SimpleTy;
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// Methods for handling the Extended-type case in functions above.
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// These are all out-of-line to prevent users of this header file
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// from having a dependency on Type.h.
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EVT changeExtendedVectorElementTypeToInteger() const;
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static EVT getExtendedIntegerVT(LLVMContext &C, unsigned BitWidth);
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static EVT getExtendedVectorVT(LLVMContext &C, EVT VT,
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unsigned NumElements);
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bool isExtendedFloatingPoint() const;
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bool isExtendedInteger() const;
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bool isExtendedVector() const;
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bool isExtended64BitVector() const;
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bool isExtended128BitVector() const;
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bool isExtended256BitVector() const;
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bool isExtended512BitVector() const;
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EVT getExtendedVectorElementType() const;
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unsigned getExtendedVectorNumElements() const;
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unsigned getExtendedSizeInBits() const;
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} // End llvm namespace
added
removed
include/llvm/CodeGen/ValueTypes.h
