1 //===- CodeGen/ValueTypes.h - Low-Level Target independ. types --*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file defines the set of low-level target independent types which various
11 // values in the code generator are. This allows the target specific behavior
12 // of instructions to be described to target independent passes.
14 //===----------------------------------------------------------------------===//
16 #ifndef LLVM_CODEGEN_VALUETYPES_H
17 #define LLVM_CODEGEN_VALUETYPES_H
19 #include "llvm/Support/DataTypes.h"
20 #include "llvm/Support/ErrorHandling.h"
21 #include "llvm/Support/MathExtras.h"
30 /// MVT - Machine Value Type. Every type that is supported natively by some
31 /// processor targeted by LLVM occurs here. This means that any legal value
32 /// type can be represented by an MVT.
35 enum SimpleValueType {
36 // INVALID_SIMPLE_VALUE_TYPE - Simple value types less than zero are
37 // considered extended value types.
38 INVALID_SIMPLE_VALUE_TYPE = -1,
40 // If you change this numbering, you must change the values in
41 // ValueTypes.td as well!
42 Other = 0, // This is a non-standard value
43 i1 = 1, // This is a 1 bit integer value
44 i8 = 2, // This is an 8 bit integer value
45 i16 = 3, // This is a 16 bit integer value
46 i32 = 4, // This is a 32 bit integer value
47 i64 = 5, // This is a 64 bit integer value
48 i128 = 6, // This is a 128 bit integer value
50 FIRST_INTEGER_VALUETYPE = i1,
51 LAST_INTEGER_VALUETYPE = i128,
53 f16 = 7, // This is a 16 bit floating point value
54 f32 = 8, // This is a 32 bit floating point value
55 f64 = 9, // This is a 64 bit floating point value
56 f80 = 10, // This is a 80 bit floating point value
57 f128 = 11, // This is a 128 bit floating point value
58 ppcf128 = 12, // This is a PPC 128-bit floating point value
60 FIRST_FP_VALUETYPE = f16,
61 LAST_FP_VALUETYPE = ppcf128,
66 v16i1 = 16, // 16 x i1
67 v32i1 = 17, // 32 x i1
68 v64i1 = 18, // 64 x i1
74 v16i8 = 23, // 16 x i8
75 v32i8 = 24, // 32 x i8
76 v64i8 = 25, // 64 x i8
77 v1i16 = 26, // 1 x i16
78 v2i16 = 27, // 2 x i16
79 v4i16 = 28, // 4 x i16
80 v8i16 = 29, // 8 x i16
81 v16i16 = 30, // 16 x i16
82 v32i16 = 31, // 32 x i16
83 v1i32 = 32, // 1 x i32
84 v2i32 = 33, // 2 x i32
85 v4i32 = 34, // 4 x i32
86 v8i32 = 35, // 8 x i32
87 v16i32 = 36, // 16 x i32
88 v1i64 = 37, // 1 x i64
89 v2i64 = 38, // 2 x i64
90 v4i64 = 39, // 4 x i64
91 v8i64 = 40, // 8 x i64
92 v16i64 = 41, // 16 x i64
94 FIRST_INTEGER_VECTOR_VALUETYPE = v2i1,
95 LAST_INTEGER_VECTOR_VALUETYPE = v16i64,
97 v2f16 = 42, // 2 x f16
98 v4f16 = 43, // 4 x f16
99 v8f16 = 44, // 8 x f16
100 v1f32 = 45, // 1 x f32
101 v2f32 = 46, // 2 x f32
102 v4f32 = 47, // 4 x f32
103 v8f32 = 48, // 8 x f32
104 v16f32 = 49, // 16 x f32
105 v1f64 = 50, // 1 x f64
106 v2f64 = 51, // 2 x f64
107 v4f64 = 52, // 4 x f64
108 v8f64 = 53, // 8 x f64
110 FIRST_FP_VECTOR_VALUETYPE = v2f16,
111 LAST_FP_VECTOR_VALUETYPE = v8f64,
113 FIRST_VECTOR_VALUETYPE = v2i1,
114 LAST_VECTOR_VALUETYPE = v8f64,
116 x86mmx = 54, // This is an X86 MMX value
118 Glue = 55, // This glues nodes together during pre-RA sched
120 isVoid = 56, // This has no value
122 Untyped = 57, // This value takes a register, but has
123 // unspecified type. The register class
124 // will be determined by the opcode.
126 LAST_VALUETYPE = 58, // This always remains at the end of the list.
128 // This is the current maximum for LAST_VALUETYPE.
129 // MVT::MAX_ALLOWED_VALUETYPE is used for asserts and to size bit vectors
130 // This value must be a multiple of 32.
131 MAX_ALLOWED_VALUETYPE = 64,
133 // Metadata - This is MDNode or MDString.
136 // iPTRAny - An int value the size of the pointer of the current
137 // target to any address space. This must only be used internal to
138 // tblgen. Other than for overloading, we treat iPTRAny the same as iPTR.
141 // vAny - A vector with any length and element size. This is used
142 // for intrinsics that have overloadings based on vector types.
143 // This is only for tblgen's consumption!
146 // fAny - Any floating-point or vector floating-point value. This is used
147 // for intrinsics that have overloadings based on floating-point types.
148 // This is only for tblgen's consumption!
151 // iAny - An integer or vector integer value of any bit width. This is
152 // used for intrinsics that have overloadings based on integer bit widths.
153 // This is only for tblgen's consumption!
156 // iPTR - An int value the size of the pointer of the current
157 // target. This should only be used internal to tblgen!
161 SimpleValueType SimpleTy;
163 MVT() : SimpleTy((SimpleValueType)(INVALID_SIMPLE_VALUE_TYPE)) {}
164 MVT(SimpleValueType SVT) : SimpleTy(SVT) { }
166 bool operator>(const MVT& S) const { return SimpleTy > S.SimpleTy; }
167 bool operator<(const MVT& S) const { return SimpleTy < S.SimpleTy; }
168 bool operator==(const MVT& S) const { return SimpleTy == S.SimpleTy; }
169 bool operator!=(const MVT& S) const { return SimpleTy != S.SimpleTy; }
170 bool operator>=(const MVT& S) const { return SimpleTy >= S.SimpleTy; }
171 bool operator<=(const MVT& S) const { return SimpleTy <= S.SimpleTy; }
173 /// isFloatingPoint - Return true if this is a FP, or a vector FP type.
174 bool isFloatingPoint() const {
175 return ((SimpleTy >= MVT::FIRST_FP_VALUETYPE &&
176 SimpleTy <= MVT::LAST_FP_VALUETYPE) ||
177 (SimpleTy >= MVT::FIRST_FP_VECTOR_VALUETYPE &&
178 SimpleTy <= MVT::LAST_FP_VECTOR_VALUETYPE));
181 /// isInteger - Return true if this is an integer, or a vector integer type.
182 bool isInteger() const {
183 return ((SimpleTy >= MVT::FIRST_INTEGER_VALUETYPE &&
184 SimpleTy <= MVT::LAST_INTEGER_VALUETYPE) ||
185 (SimpleTy >= MVT::FIRST_INTEGER_VECTOR_VALUETYPE &&
186 SimpleTy <= MVT::LAST_INTEGER_VECTOR_VALUETYPE));
189 /// isVector - Return true if this is a vector value type.
190 bool isVector() const {
191 return (SimpleTy >= MVT::FIRST_VECTOR_VALUETYPE &&
192 SimpleTy <= MVT::LAST_VECTOR_VALUETYPE);
195 /// is16BitVector - Return true if this is a 16-bit vector type.
196 bool is16BitVector() const {
197 return (SimpleTy == MVT::v2i8 || SimpleTy == MVT::v1i16 ||
198 SimpleTy == MVT::v16i1);
201 /// is32BitVector - Return true if this is a 32-bit vector type.
202 bool is32BitVector() const {
203 return (SimpleTy == MVT::v4i8 || SimpleTy == MVT::v2i16 ||
204 SimpleTy == MVT::v1i32);
207 /// is64BitVector - Return true if this is a 64-bit vector type.
208 bool is64BitVector() const {
209 return (SimpleTy == MVT::v8i8 || SimpleTy == MVT::v4i16 ||
210 SimpleTy == MVT::v2i32 || SimpleTy == MVT::v1i64 ||
211 SimpleTy == MVT::v1f64 || SimpleTy == MVT::v2f32);
214 /// is128BitVector - Return true if this is a 128-bit vector type.
215 bool is128BitVector() const {
216 return (SimpleTy == MVT::v16i8 || SimpleTy == MVT::v8i16 ||
217 SimpleTy == MVT::v4i32 || SimpleTy == MVT::v2i64 ||
218 SimpleTy == MVT::v4f32 || SimpleTy == MVT::v2f64);
221 /// is256BitVector - Return true if this is a 256-bit vector type.
222 bool is256BitVector() const {
223 return (SimpleTy == MVT::v8f32 || SimpleTy == MVT::v4f64 ||
224 SimpleTy == MVT::v32i8 || SimpleTy == MVT::v16i16 ||
225 SimpleTy == MVT::v8i32 || SimpleTy == MVT::v4i64);
228 /// is512BitVector - Return true if this is a 512-bit vector type.
229 bool is512BitVector() const {
230 return (SimpleTy == MVT::v8f64 || SimpleTy == MVT::v16f32 ||
231 SimpleTy == MVT::v64i8 || SimpleTy == MVT::v32i16 ||
232 SimpleTy == MVT::v8i64 || SimpleTy == MVT::v16i32);
235 /// is1024BitVector - Return true if this is a 1024-bit vector type.
236 bool is1024BitVector() const {
237 return (SimpleTy == MVT::v16i64);
240 /// isOverloaded - Return true if this is an overloaded type for TableGen.
241 bool isOverloaded() const {
242 return (SimpleTy==MVT::iAny || SimpleTy==MVT::fAny ||
243 SimpleTy==MVT::vAny || SimpleTy==MVT::iPTRAny);
246 /// isPow2VectorType - Returns true if the given vector is a power of 2.
247 bool isPow2VectorType() const {
248 unsigned NElts = getVectorNumElements();
249 return !(NElts & (NElts - 1));
252 /// getPow2VectorType - Widens the length of the given vector MVT up to
253 /// the nearest power of 2 and returns that type.
254 MVT getPow2VectorType() const {
255 if (isPow2VectorType())
258 unsigned NElts = getVectorNumElements();
259 unsigned Pow2NElts = 1 << Log2_32_Ceil(NElts);
260 return MVT::getVectorVT(getVectorElementType(), Pow2NElts);
263 /// getScalarType - If this is a vector type, return the element type,
264 /// otherwise return this.
265 MVT getScalarType() const {
266 return isVector() ? getVectorElementType() : *this;
269 MVT getVectorElementType() const {
272 llvm_unreachable("Not a vector MVT!");
278 case v64i1: return i1;
285 case v64i8: return i8;
291 case v32i16: return i16;
296 case v16i32: return i32;
301 case v16i64: return i64;
304 case v8f16: return f16;
309 case v16f32: return f32;
313 case v8f64: return f64;
317 unsigned getVectorNumElements() const {
320 llvm_unreachable("Not a vector MVT!");
323 case v32i16: return 32;
325 case v64i8: return 64;
331 case v16f32: return 16;
339 case v8f64: return 8;
347 case v4f64: return 4;
355 case v2f64: return 2;
361 case v1f64: return 1;
365 unsigned getSizeInBits() const {
368 llvm_unreachable("getSizeInBits called on extended MVT.");
370 llvm_unreachable("Value type is non-standard value, Other.");
372 llvm_unreachable("Value type size is target-dependent. Ask TLI.");
377 llvm_unreachable("Value type is overloaded.");
379 llvm_unreachable("Value type is metadata.");
390 case v1i16: return 16;
398 case v1i32: return 32;
409 case v1f64: return 64;
410 case f80 : return 80;
420 case v2f64: return 128;
426 case v4f64: return 256;
432 case v8f64: return 512;
433 case v16i64:return 1024;
437 /// getStoreSize - Return the number of bytes overwritten by a store
438 /// of the specified value type.
439 unsigned getStoreSize() const {
440 return (getSizeInBits() + 7) / 8;
443 /// getStoreSizeInBits - Return the number of bits overwritten by a store
444 /// of the specified value type.
445 unsigned getStoreSizeInBits() const {
446 return getStoreSize() * 8;
449 /// Return true if this has more bits than VT.
450 bool bitsGT(MVT VT) const {
451 return getSizeInBits() > VT.getSizeInBits();
454 /// Return true if this has no less bits than VT.
455 bool bitsGE(MVT VT) const {
456 return getSizeInBits() >= VT.getSizeInBits();
459 /// Return true if this has less bits than VT.
460 bool bitsLT(MVT VT) const {
461 return getSizeInBits() < VT.getSizeInBits();
464 /// Return true if this has no more bits than VT.
465 bool bitsLE(MVT VT) const {
466 return getSizeInBits() <= VT.getSizeInBits();
470 static MVT getFloatingPointVT(unsigned BitWidth) {
473 llvm_unreachable("Bad bit width!");
487 static MVT getIntegerVT(unsigned BitWidth) {
490 return (MVT::SimpleValueType)(MVT::INVALID_SIMPLE_VALUE_TYPE);
506 static MVT getVectorVT(MVT VT, unsigned NumElements) {
507 switch (VT.SimpleTy) {
511 if (NumElements == 2) return MVT::v2i1;
512 if (NumElements == 4) return MVT::v4i1;
513 if (NumElements == 8) return MVT::v8i1;
514 if (NumElements == 16) return MVT::v16i1;
515 if (NumElements == 32) return MVT::v32i1;
516 if (NumElements == 64) return MVT::v64i1;
519 if (NumElements == 1) return MVT::v1i8;
520 if (NumElements == 2) return MVT::v2i8;
521 if (NumElements == 4) return MVT::v4i8;
522 if (NumElements == 8) return MVT::v8i8;
523 if (NumElements == 16) return MVT::v16i8;
524 if (NumElements == 32) return MVT::v32i8;
525 if (NumElements == 64) return MVT::v64i8;
528 if (NumElements == 1) return MVT::v1i16;
529 if (NumElements == 2) return MVT::v2i16;
530 if (NumElements == 4) return MVT::v4i16;
531 if (NumElements == 8) return MVT::v8i16;
532 if (NumElements == 16) return MVT::v16i16;
533 if (NumElements == 32) return MVT::v32i16;
536 if (NumElements == 1) return MVT::v1i32;
537 if (NumElements == 2) return MVT::v2i32;
538 if (NumElements == 4) return MVT::v4i32;
539 if (NumElements == 8) return MVT::v8i32;
540 if (NumElements == 16) return MVT::v16i32;
543 if (NumElements == 1) return MVT::v1i64;
544 if (NumElements == 2) return MVT::v2i64;
545 if (NumElements == 4) return MVT::v4i64;
546 if (NumElements == 8) return MVT::v8i64;
547 if (NumElements == 16) return MVT::v16i64;
550 if (NumElements == 2) return MVT::v2f16;
551 if (NumElements == 4) return MVT::v4f16;
552 if (NumElements == 8) return MVT::v8f16;
555 if (NumElements == 1) return MVT::v1f32;
556 if (NumElements == 2) return MVT::v2f32;
557 if (NumElements == 4) return MVT::v4f32;
558 if (NumElements == 8) return MVT::v8f32;
559 if (NumElements == 16) return MVT::v16f32;
562 if (NumElements == 1) return MVT::v1f64;
563 if (NumElements == 2) return MVT::v2f64;
564 if (NumElements == 4) return MVT::v4f64;
565 if (NumElements == 8) return MVT::v8f64;
568 return (MVT::SimpleValueType)(MVT::INVALID_SIMPLE_VALUE_TYPE);
571 /// Return the value type corresponding to the specified type. This returns
572 /// all pointers as iPTR. If HandleUnknown is true, unknown types are
573 /// returned as Other, otherwise they are invalid.
574 static MVT getVT(Type *Ty, bool HandleUnknown = false);
579 /// EVT - Extended Value Type. Capable of holding value types which are not
580 /// native for any processor (such as the i12345 type), as well as the types
581 /// a MVT can represent.
588 EVT() : V((MVT::SimpleValueType)(MVT::INVALID_SIMPLE_VALUE_TYPE)),
590 EVT(MVT::SimpleValueType SVT) : V(SVT), LLVMTy(0) { }
591 EVT(MVT S) : V(S), LLVMTy(0) {}
593 bool operator==(EVT VT) const {
594 return !(*this != VT);
596 bool operator!=(EVT VT) const {
597 if (V.SimpleTy != VT.V.SimpleTy)
600 return LLVMTy != VT.LLVMTy;
604 /// getFloatingPointVT - Returns the EVT that represents a floating point
605 /// type with the given number of bits. There are two floating point types
606 /// with 128 bits - this returns f128 rather than ppcf128.
607 static EVT getFloatingPointVT(unsigned BitWidth) {
608 return MVT::getFloatingPointVT(BitWidth);
611 /// getIntegerVT - Returns the EVT that represents an integer with the given
613 static EVT getIntegerVT(LLVMContext &Context, unsigned BitWidth) {
614 MVT M = MVT::getIntegerVT(BitWidth);
617 return getExtendedIntegerVT(Context, BitWidth);
620 /// getVectorVT - Returns the EVT that represents a vector NumElements in
621 /// length, where each element is of type VT.
622 static EVT getVectorVT(LLVMContext &Context, EVT VT, unsigned NumElements) {
623 MVT M = MVT::getVectorVT(VT.V, NumElements);
626 return getExtendedVectorVT(Context, VT, NumElements);
629 /// changeVectorElementTypeToInteger - Return a vector with the same number
630 /// of elements as this vector, but with the element type converted to an
631 /// integer type with the same bitwidth.
632 EVT changeVectorElementTypeToInteger() const {
634 return changeExtendedVectorElementTypeToInteger();
635 MVT EltTy = getSimpleVT().getVectorElementType();
636 unsigned BitWidth = EltTy.getSizeInBits();
637 MVT IntTy = MVT::getIntegerVT(BitWidth);
638 MVT VecTy = MVT::getVectorVT(IntTy, getVectorNumElements());
639 assert(VecTy.SimpleTy >= 0 &&
640 "Simple vector VT not representable by simple integer vector VT!");
644 /// isSimple - Test if the given EVT is simple (as opposed to being
646 bool isSimple() const {
647 return V.SimpleTy >= 0;
650 /// isExtended - Test if the given EVT is extended (as opposed to
652 bool isExtended() const {
656 /// isFloatingPoint - Return true if this is a FP, or a vector FP type.
657 bool isFloatingPoint() const {
658 return isSimple() ? V.isFloatingPoint() : isExtendedFloatingPoint();
661 /// isInteger - Return true if this is an integer, or a vector integer type.
662 bool isInteger() const {
663 return isSimple() ? V.isInteger() : isExtendedInteger();
666 /// isVector - Return true if this is a vector value type.
667 bool isVector() const {
668 return isSimple() ? V.isVector() : isExtendedVector();
671 /// is16BitVector - Return true if this is a 16-bit vector type.
672 bool is16BitVector() const {
673 return isSimple() ? V.is16BitVector() : isExtended16BitVector();
676 /// is32BitVector - Return true if this is a 32-bit vector type.
677 bool is32BitVector() const {
678 return isSimple() ? V.is32BitVector() : isExtended32BitVector();
681 /// is64BitVector - Return true if this is a 64-bit vector type.
682 bool is64BitVector() const {
683 return isSimple() ? V.is64BitVector() : isExtended64BitVector();
686 /// is128BitVector - Return true if this is a 128-bit vector type.
687 bool is128BitVector() const {
688 return isSimple() ? V.is128BitVector() : isExtended128BitVector();
691 /// is256BitVector - Return true if this is a 256-bit vector type.
692 bool is256BitVector() const {
693 return isSimple() ? V.is256BitVector() : isExtended256BitVector();
696 /// is512BitVector - Return true if this is a 512-bit vector type.
697 bool is512BitVector() const {
698 return isSimple() ? V.is512BitVector() : isExtended512BitVector();
701 /// is1024BitVector - Return true if this is a 1024-bit vector type.
702 bool is1024BitVector() const {
703 return isSimple() ? V.is1024BitVector() : isExtended1024BitVector();
706 /// isOverloaded - Return true if this is an overloaded type for TableGen.
707 bool isOverloaded() const {
708 return (V==MVT::iAny || V==MVT::fAny || V==MVT::vAny || V==MVT::iPTRAny);
711 /// isByteSized - Return true if the bit size is a multiple of 8.
712 bool isByteSized() const {
713 return (getSizeInBits() & 7) == 0;
716 /// isRound - Return true if the size is a power-of-two number of bytes.
717 bool isRound() const {
718 unsigned BitSize = getSizeInBits();
719 return BitSize >= 8 && !(BitSize & (BitSize - 1));
722 /// bitsEq - Return true if this has the same number of bits as VT.
723 bool bitsEq(EVT VT) const {
724 if (EVT::operator==(VT)) return true;
725 return getSizeInBits() == VT.getSizeInBits();
728 /// bitsGT - Return true if this has more bits than VT.
729 bool bitsGT(EVT VT) const {
730 if (EVT::operator==(VT)) return false;
731 return getSizeInBits() > VT.getSizeInBits();
734 /// bitsGE - Return true if this has no less bits than VT.
735 bool bitsGE(EVT VT) const {
736 if (EVT::operator==(VT)) return true;
737 return getSizeInBits() >= VT.getSizeInBits();
740 /// bitsLT - Return true if this has less bits than VT.
741 bool bitsLT(EVT VT) const {
742 if (EVT::operator==(VT)) return false;
743 return getSizeInBits() < VT.getSizeInBits();
746 /// bitsLE - Return true if this has no more bits than VT.
747 bool bitsLE(EVT VT) const {
748 if (EVT::operator==(VT)) return true;
749 return getSizeInBits() <= VT.getSizeInBits();
753 /// getSimpleVT - Return the SimpleValueType held in the specified
755 MVT getSimpleVT() const {
756 assert(isSimple() && "Expected a SimpleValueType!");
760 /// getScalarType - If this is a vector type, return the element type,
761 /// otherwise return this.
762 EVT getScalarType() const {
763 return isVector() ? getVectorElementType() : *this;
766 /// getVectorElementType - Given a vector type, return the type of
768 EVT getVectorElementType() const {
769 assert(isVector() && "Invalid vector type!");
771 return V.getVectorElementType();
772 return getExtendedVectorElementType();
775 /// getVectorNumElements - Given a vector type, return the number of
776 /// elements it contains.
777 unsigned getVectorNumElements() const {
778 assert(isVector() && "Invalid vector type!");
780 return V.getVectorNumElements();
781 return getExtendedVectorNumElements();
784 /// getSizeInBits - Return the size of the specified value type in bits.
785 unsigned getSizeInBits() const {
787 return V.getSizeInBits();
788 return getExtendedSizeInBits();
791 /// getStoreSize - Return the number of bytes overwritten by a store
792 /// of the specified value type.
793 unsigned getStoreSize() const {
794 return (getSizeInBits() + 7) / 8;
797 /// getStoreSizeInBits - Return the number of bits overwritten by a store
798 /// of the specified value type.
799 unsigned getStoreSizeInBits() const {
800 return getStoreSize() * 8;
803 /// getRoundIntegerType - Rounds the bit-width of the given integer EVT up
804 /// to the nearest power of two (and at least to eight), and returns the
805 /// integer EVT with that number of bits.
806 EVT getRoundIntegerType(LLVMContext &Context) const {
807 assert(isInteger() && !isVector() && "Invalid integer type!");
808 unsigned BitWidth = getSizeInBits();
811 return getIntegerVT(Context, 1 << Log2_32_Ceil(BitWidth));
814 /// getHalfSizedIntegerVT - Finds the smallest simple value type that is
815 /// greater than or equal to half the width of this EVT. If no simple
816 /// value type can be found, an extended integer value type of half the
817 /// size (rounded up) is returned.
818 EVT getHalfSizedIntegerVT(LLVMContext &Context) const {
819 assert(isInteger() && !isVector() && "Invalid integer type!");
820 unsigned EVTSize = getSizeInBits();
821 for (unsigned IntVT = MVT::FIRST_INTEGER_VALUETYPE;
822 IntVT <= MVT::LAST_INTEGER_VALUETYPE; ++IntVT) {
823 EVT HalfVT = EVT((MVT::SimpleValueType)IntVT);
824 if (HalfVT.getSizeInBits() * 2 >= EVTSize)
827 return getIntegerVT(Context, (EVTSize + 1) / 2);
830 /// isPow2VectorType - Returns true if the given vector is a power of 2.
831 bool isPow2VectorType() const {
832 unsigned NElts = getVectorNumElements();
833 return !(NElts & (NElts - 1));
836 /// getPow2VectorType - Widens the length of the given vector EVT up to
837 /// the nearest power of 2 and returns that type.
838 EVT getPow2VectorType(LLVMContext &Context) const {
839 if (!isPow2VectorType()) {
840 unsigned NElts = getVectorNumElements();
841 unsigned Pow2NElts = 1 << Log2_32_Ceil(NElts);
842 return EVT::getVectorVT(Context, getVectorElementType(), Pow2NElts);
849 /// getEVTString - This function returns value type as a string,
851 std::string getEVTString() const;
853 /// getTypeForEVT - This method returns an LLVM type corresponding to the
854 /// specified EVT. For integer types, this returns an unsigned type. Note
855 /// that this will abort for types that cannot be represented.
856 Type *getTypeForEVT(LLVMContext &Context) const;
858 /// getEVT - Return the value type corresponding to the specified type.
859 /// This returns all pointers as iPTR. If HandleUnknown is true, unknown
860 /// types are returned as Other, otherwise they are invalid.
861 static EVT getEVT(Type *Ty, bool HandleUnknown = false);
863 intptr_t getRawBits() const {
867 return (intptr_t)(LLVMTy);
870 /// compareRawBits - A meaningless but well-behaved order, useful for
871 /// constructing containers.
872 struct compareRawBits {
873 bool operator()(EVT L, EVT R) const {
874 if (L.V.SimpleTy == R.V.SimpleTy)
875 return L.LLVMTy < R.LLVMTy;
877 return L.V.SimpleTy < R.V.SimpleTy;
882 // Methods for handling the Extended-type case in functions above.
883 // These are all out-of-line to prevent users of this header file
884 // from having a dependency on Type.h.
885 EVT changeExtendedVectorElementTypeToInteger() const;
886 static EVT getExtendedIntegerVT(LLVMContext &C, unsigned BitWidth);
887 static EVT getExtendedVectorVT(LLVMContext &C, EVT VT,
888 unsigned NumElements);
889 bool isExtendedFloatingPoint() const LLVM_READONLY;
890 bool isExtendedInteger() const LLVM_READONLY;
891 bool isExtendedVector() const LLVM_READONLY;
892 bool isExtended16BitVector() const LLVM_READONLY;
893 bool isExtended32BitVector() const LLVM_READONLY;
894 bool isExtended64BitVector() const LLVM_READONLY;
895 bool isExtended128BitVector() const LLVM_READONLY;
896 bool isExtended256BitVector() const LLVM_READONLY;
897 bool isExtended512BitVector() const LLVM_READONLY;
898 bool isExtended1024BitVector() const LLVM_READONLY;
899 EVT getExtendedVectorElementType() const;
900 unsigned getExtendedVectorNumElements() const LLVM_READONLY;
901 unsigned getExtendedSizeInBits() const;
904 } // End llvm namespace