TargetInfo.h revision 237cf582b89bbcc22640cea15426ddc7ada8412b
15f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===--- TargetInfo.h - Expose information about the target -----*- C++ -*-===// 25f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 35f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// The LLVM Compiler Infrastructure 45f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 50bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// This file is distributed under the University of Illinois Open Source 60bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// License. See LICENSE.TXT for details. 75f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 85f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 95f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 102b59a2cbfdb93fcf1a4a303e1ea7753ff1c7b319Nate Begeman// This file defines the TargetInfo interface. 115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#ifndef LLVM_CLANG_BASIC_TARGETINFO_H 155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#define LLVM_CLANG_BASIC_TARGETINFO_H 165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 17868bd0aa9281929ef50d2e9a8c82a036906f53f5Daniel Dunbar// FIXME: Daniel isn't smart enough to use a prototype for this. 18868bd0aa9281929ef50d2e9a8c82a036906f53f5Daniel Dunbar#include "llvm/ADT/StringMap.h" 1920cf717034ba1f20fc47c025ecb72ed9b631ad13Charles Davis#include "llvm/ADT/StringSwitch.h" 201752ee4849f4c37f5e03193e658be92650b0e65aDaniel Dunbar#include "llvm/ADT/Triple.h" 219f8eb2032030482b1d3de86e9bee725d93564302Chandler Carruth#include "llvm/System/DataTypes.h" 225414fbac5f1749c0e85a8c4eeb5dfece59c3e30aTorok Edwin#include <cassert> 235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include <vector> 245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include <string> 255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 26797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattnernamespace llvm { 27797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattnerstruct fltSemantics; 28797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattnerclass StringRef; 29797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner} 30525a05093a4816af961fe2bc6b8a81c17e2e26c2Chris Lattner 315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencernamespace clang { 325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass Diagnostic; 33d58c03f42ebb4e548c2b53fa25b1cfe02ebb9ac0Daniel Dunbarclass LangOptions; 34103b71c37a3c3a3da7128c1d0232a89b1e8d0d90Chandler Carruthclass MacroBuilder; 35797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattnerclass SourceLocation; 367a9d49fd2bfac00e905b361ba76d26ab5b6c3b09Ted Kremenekclass SourceManager; 37d58c03f42ebb4e548c2b53fa25b1cfe02ebb9ac0Daniel Dunbarclass TargetOptions; 38d58c03f42ebb4e548c2b53fa25b1cfe02ebb9ac0Daniel Dunbar 395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencernamespace Builtin { struct Info; } 401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4120cf717034ba1f20fc47c025ecb72ed9b631ad13Charles Davis/// TargetCXXABI - The types of C++ ABIs for which we can generate code. 4220cf717034ba1f20fc47c025ecb72ed9b631ad13Charles Davisenum TargetCXXABI { 43ee79a4c30e5d1c5285551c9a25b8ec6d45d46aa7John McCall /// The generic ("Itanium") C++ ABI, documented at: 44ee79a4c30e5d1c5285551c9a25b8ec6d45d46aa7John McCall /// http://www.codesourcery.com/public/cxx-abi/ 4520cf717034ba1f20fc47c025ecb72ed9b631ad13Charles Davis CXXABI_Itanium, 46ee79a4c30e5d1c5285551c9a25b8ec6d45d46aa7John McCall 47ee79a4c30e5d1c5285551c9a25b8ec6d45d46aa7John McCall /// The ARM C++ ABI, based largely on the Itanium ABI but with 48ee79a4c30e5d1c5285551c9a25b8ec6d45d46aa7John McCall /// significant differences. 49ee79a4c30e5d1c5285551c9a25b8ec6d45d46aa7John McCall /// http://infocenter.arm.com 50ee79a4c30e5d1c5285551c9a25b8ec6d45d46aa7John McCall /// /help/topic/com.arm.doc.ihi0041c/IHI0041C_cppabi.pdf 51ee79a4c30e5d1c5285551c9a25b8ec6d45d46aa7John McCall CXXABI_ARM, 52ee79a4c30e5d1c5285551c9a25b8ec6d45d46aa7John McCall 53ee79a4c30e5d1c5285551c9a25b8ec6d45d46aa7John McCall /// The Visual Studio ABI. Only scattered official documentation exists. 5420cf717034ba1f20fc47c025ecb72ed9b631ad13Charles Davis CXXABI_Microsoft 5520cf717034ba1f20fc47c025ecb72ed9b631ad13Charles Davis}; 5620cf717034ba1f20fc47c025ecb72ed9b631ad13Charles Davis 5742e6737f2efb113563140ad794c21c7709250402Chris Lattner/// TargetInfo - This class exposes information about the current target. 585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass TargetInfo { 601752ee4849f4c37f5e03193e658be92650b0e65aDaniel Dunbar llvm::Triple Triple; 610eaed12e634dfd14f44620f63b8d3276fed028ddChris Lattnerprotected: 62cd4fc42896f926ffc081e1c4a8bf4cd647883c14Chris Lattner // Target values set by the ctor of the actual target implementation. Default 63cd4fc42896f926ffc081e1c4a8bf4cd647883c14Chris Lattner // values are specified by the TargetInfo constructor. 64b030f0272500c6c5602f587ac029ee0dc0e5a05cEli Friedman bool TLSSupported; 659bffb0701d02a10e77e1ac0f196074eed6466ed0Chris Lattner bool NoAsmVariants; // True if {|} are normal characters. 66927686fe8c968ca786fa44d2353eebf59c4f5b8aChris Lattner unsigned char PointerWidth, PointerAlign; 67927686fe8c968ca786fa44d2353eebf59c4f5b8aChris Lattner unsigned char IntWidth, IntAlign; 6861538a7d1336f3ef3cb81e09f11a1cbb282bcf81Eli Friedman unsigned char FloatWidth, FloatAlign; 69927686fe8c968ca786fa44d2353eebf59c4f5b8aChris Lattner unsigned char DoubleWidth, DoubleAlign; 7061538a7d1336f3ef3cb81e09f11a1cbb282bcf81Eli Friedman unsigned char LongDoubleWidth, LongDoubleAlign; 716deecb0d46bcfd048e651d2db7c4fb0d6407da96Rafael Espindola unsigned char LargeArrayMinWidth, LargeArrayAlign; 72927686fe8c968ca786fa44d2353eebf59c4f5b8aChris Lattner unsigned char LongWidth, LongAlign; 73927686fe8c968ca786fa44d2353eebf59c4f5b8aChris Lattner unsigned char LongLongWidth, LongLongAlign; 7477e8b53fe3ff630d8d1454db94e38bedda14d5caDaniel Dunbar const char *DescriptionString; 753fdf4678935b27c3d3fd4eb10bf9f5ab98dc0d99Chris Lattner const char *UserLabelPrefix; 76cd4fc42896f926ffc081e1c4a8bf4cd647883c14Chris Lattner const llvm::fltSemantics *FloatFormat, *DoubleFormat, *LongDoubleFormat; 77264a76cdf382c507f4d43e64c89f1503f003ac95Anton Korobeynikov unsigned char RegParmMax, SSERegParmMax; 7820cf717034ba1f20fc47c025ecb72ed9b631ad13Charles Davis TargetCXXABI CXXABI; 79bbced580c92afa09cd4423a9bdc90ff61cb1e79aTed Kremenek 80613fd67e575ff1c038535b18dafebca070f3ed91Daniel Dunbar unsigned HasAlignMac68kSupport : 1; 81dacf9dda17346c628fdd8c5df53c681738db0dc5Daniel Dunbar unsigned RealTypeUsesObjCFPRet : 3; 82613fd67e575ff1c038535b18dafebca070f3ed91Daniel Dunbar 83cd4fc42896f926ffc081e1c4a8bf4cd647883c14Chris Lattner // TargetInfo Constructor. Default initializes all fields. 84cd4fc42896f926ffc081e1c4a8bf4cd647883c14Chris Lattner TargetInfo(const std::string &T); 851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumppublic: 87d58c03f42ebb4e548c2b53fa25b1cfe02ebb9ac0Daniel Dunbar /// CreateTargetInfo - Construct a target for the given options. 88b93292ab7f2b3d43a9e0ad6421f572d1f5a323b4Daniel Dunbar /// 89b93292ab7f2b3d43a9e0ad6421f572d1f5a323b4Daniel Dunbar /// \param Opts - The options to use to initialize the target. The target may 90b93292ab7f2b3d43a9e0ad6421f572d1f5a323b4Daniel Dunbar /// modify the options to canonicalize the target feature information to match 91b93292ab7f2b3d43a9e0ad6421f572d1f5a323b4Daniel Dunbar /// what the backend expects. 92b93292ab7f2b3d43a9e0ad6421f572d1f5a323b4Daniel Dunbar static TargetInfo* CreateTargetInfo(Diagnostic &Diags, TargetOptions &Opts); 93bbced580c92afa09cd4423a9bdc90ff61cb1e79aTed Kremenek 940eaed12e634dfd14f44620f63b8d3276fed028ddChris Lattner virtual ~TargetInfo(); 95fb79f7cc00f9c1e04f11ed636eefb36d246b0fb8Ted Kremenek 969c4bea1fa7291035325575c02d33552a124d8ef3Chris Lattner ///===---- Target Data Type Query Methods -------------------------------===// 9731fc07df7f0fc89ebf83ca05a20b29de45a7598dSanjiv Gupta enum IntType { 982b5abf515f9696912452f431c7738691cf97f4f1Chris Lattner NoInt = 0, 9931fc07df7f0fc89ebf83ca05a20b29de45a7598dSanjiv Gupta SignedShort, 10031fc07df7f0fc89ebf83ca05a20b29de45a7598dSanjiv Gupta UnsignedShort, 10131fc07df7f0fc89ebf83ca05a20b29de45a7598dSanjiv Gupta SignedInt, 10231fc07df7f0fc89ebf83ca05a20b29de45a7598dSanjiv Gupta UnsignedInt, 10331fc07df7f0fc89ebf83ca05a20b29de45a7598dSanjiv Gupta SignedLong, 10431fc07df7f0fc89ebf83ca05a20b29de45a7598dSanjiv Gupta UnsignedLong, 10531fc07df7f0fc89ebf83ca05a20b29de45a7598dSanjiv Gupta SignedLongLong, 10631fc07df7f0fc89ebf83ca05a20b29de45a7598dSanjiv Gupta UnsignedLongLong 1073fa8f7491a6a6c1445768ea23ec85d3554c3ba98Chris Lattner }; 108dacf9dda17346c628fdd8c5df53c681738db0dc5Daniel Dunbar 109dacf9dda17346c628fdd8c5df53c681738db0dc5Daniel Dunbar enum RealType { 110dacf9dda17346c628fdd8c5df53c681738db0dc5Daniel Dunbar Float = 0, 111dacf9dda17346c628fdd8c5df53c681738db0dc5Daniel Dunbar Double, 112dacf9dda17346c628fdd8c5df53c681738db0dc5Daniel Dunbar LongDouble 113dacf9dda17346c628fdd8c5df53c681738db0dc5Daniel Dunbar }; 114dacf9dda17346c628fdd8c5df53c681738db0dc5Daniel Dunbar 1153fa8f7491a6a6c1445768ea23ec85d3554c3ba98Chris Lattnerprotected: 1163c7b6e46c5f9bdbe0676c52d80df98b68b02be99Eli Friedman IntType SizeType, IntMaxType, UIntMaxType, PtrDiffType, IntPtrType, WCharType, 1179cf910efc4fb7001a6d276ed2eabf01f0f0efaaaEdward O'Callaghan WIntType, Char16Type, Char32Type, Int64Type, SigAtomicType; 118b6a169395c1b30c76daffebcbd2164b6247a5d21Daniel Dunbar 119b6a169395c1b30c76daffebcbd2164b6247a5d21Daniel Dunbar /// Control whether the alignment of bit-field types is respected when laying 120b6a169395c1b30c76daffebcbd2164b6247a5d21Daniel Dunbar /// out structures. If true, then the alignment of the bit-field type will be 121b6a169395c1b30c76daffebcbd2164b6247a5d21Daniel Dunbar /// used to (a) impact the alignment of the containing structure, and (b) 122b6a169395c1b30c76daffebcbd2164b6247a5d21Daniel Dunbar /// ensure that the individual bit-field will not straddle an alignment 123b6a169395c1b30c76daffebcbd2164b6247a5d21Daniel Dunbar /// boundary. 124b6830d616a068971f13e1e213e06a945c8c93ceaDaniel Dunbar unsigned UseBitFieldTypeAlignment : 1; 125b6a169395c1b30c76daffebcbd2164b6247a5d21Daniel Dunbar 1263fa8f7491a6a6c1445768ea23ec85d3554c3ba98Chris Lattnerpublic: 1273fa8f7491a6a6c1445768ea23ec85d3554c3ba98Chris Lattner IntType getSizeType() const { return SizeType; } 1283fa8f7491a6a6c1445768ea23ec85d3554c3ba98Chris Lattner IntType getIntMaxType() const { return IntMaxType; } 1293fa8f7491a6a6c1445768ea23ec85d3554c3ba98Chris Lattner IntType getUIntMaxType() const { return UIntMaxType; } 1303fa8f7491a6a6c1445768ea23ec85d3554c3ba98Chris Lattner IntType getPtrDiffType(unsigned AddrSpace) const { 13131fc07df7f0fc89ebf83ca05a20b29de45a7598dSanjiv Gupta return AddrSpace == 0 ? PtrDiffType : getPtrDiffTypeV(AddrSpace); 13231fc07df7f0fc89ebf83ca05a20b29de45a7598dSanjiv Gupta } 1336ad474f82f0cf32e13128d89fa5ad3a37ae73530Chris Lattner IntType getIntPtrType() const { return IntPtrType; } 1343fa8f7491a6a6c1445768ea23ec85d3554c3ba98Chris Lattner IntType getWCharType() const { return WCharType; } 135e64ef80363c84f4f431e26b61db554c89beeddb6Chris Lattner IntType getWIntType() const { return WIntType; } 136f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith IntType getChar16Type() const { return Char16Type; } 137f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith IntType getChar32Type() const { return Char32Type; } 1383c7b6e46c5f9bdbe0676c52d80df98b68b02be99Eli Friedman IntType getInt64Type() const { return Int64Type; } 1399cf910efc4fb7001a6d276ed2eabf01f0f0efaaaEdward O'Callaghan IntType getSigAtomicType() const { return SigAtomicType; } 1405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 141b304f77cb621a47221f2aa2d35acdb5c730421ffChris Lattner 142237cf582b89bbcc22640cea15426ddc7ada8412bMichael J. Spencer /// getTypeWidth - Return the width (in bits) of the specified integer type 143b304f77cb621a47221f2aa2d35acdb5c730421ffChris Lattner /// enum. For example, SignedInt -> getIntWidth(). 144b304f77cb621a47221f2aa2d35acdb5c730421ffChris Lattner unsigned getTypeWidth(IntType T) const; 145b304f77cb621a47221f2aa2d35acdb5c730421ffChris Lattner 1469099e7bcda3922cee0cffcdf21332ac4aa193ceaChris Lattner /// getTypeAlign - Return the alignment (in bits) of the specified integer 1479099e7bcda3922cee0cffcdf21332ac4aa193ceaChris Lattner /// type enum. For example, SignedInt -> getIntAlign(). 1489099e7bcda3922cee0cffcdf21332ac4aa193ceaChris Lattner unsigned getTypeAlign(IntType T) const; 1499099e7bcda3922cee0cffcdf21332ac4aa193ceaChris Lattner 150961f0708fb66375acf47f9e9bc1aecfb3f992aeaChris Lattner /// isTypeSigned - Return whether an integer types is signed. Returns true if 151b304f77cb621a47221f2aa2d35acdb5c730421ffChris Lattner /// the type is signed; false otherwise. 152961f0708fb66375acf47f9e9bc1aecfb3f992aeaChris Lattner bool isTypeSigned(IntType T) const; 153b304f77cb621a47221f2aa2d35acdb5c730421ffChris Lattner 154f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner /// getPointerWidth - Return the width of pointers on this target, for the 155927686fe8c968ca786fa44d2353eebf59c4f5b8aChris Lattner /// specified address space. 156927686fe8c968ca786fa44d2353eebf59c4f5b8aChris Lattner uint64_t getPointerWidth(unsigned AddrSpace) const { 157927686fe8c968ca786fa44d2353eebf59c4f5b8aChris Lattner return AddrSpace == 0 ? PointerWidth : getPointerWidthV(AddrSpace); 158927686fe8c968ca786fa44d2353eebf59c4f5b8aChris Lattner } 159927686fe8c968ca786fa44d2353eebf59c4f5b8aChris Lattner uint64_t getPointerAlign(unsigned AddrSpace) const { 160927686fe8c968ca786fa44d2353eebf59c4f5b8aChris Lattner return AddrSpace == 0 ? PointerAlign : getPointerAlignV(AddrSpace); 161927686fe8c968ca786fa44d2353eebf59c4f5b8aChris Lattner } 1621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1639e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner /// getBoolWidth/Align - Return the size of '_Bool' and C++ 'bool' for this 1649e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner /// target, in bits. 1659e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner unsigned getBoolWidth(bool isWide = false) const { return 8; } // FIXME 1669e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner unsigned getBoolAlign(bool isWide = false) const { return 8; } // FIXME 1671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 168f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith unsigned getCharWidth() const { return 8; } // FIXME 169f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith unsigned getCharAlign() const { return 8; } // FIXME 1701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1719e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner /// getShortWidth/Align - Return the size of 'signed short' and 1721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// 'unsigned short' for this target, in bits. 1739e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner unsigned getShortWidth() const { return 16; } // FIXME 1749e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner unsigned getShortAlign() const { return 16; } // FIXME 1751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1769e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner /// getIntWidth/Align - Return the size of 'signed int' and 'unsigned int' for 1779e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner /// this target, in bits. 1782621fd1d6d3c5eadcae246859f62738645df7540Chris Lattner unsigned getIntWidth() const { return IntWidth; } 1792621fd1d6d3c5eadcae246859f62738645df7540Chris Lattner unsigned getIntAlign() const { return IntAlign; } 1801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1819e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner /// getLongWidth/Align - Return the size of 'signed long' and 'unsigned long' 1829e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner /// for this target, in bits. 1838059e997ee05e4aa87f7e21fed630429a140ee53Chris Lattner unsigned getLongWidth() const { return LongWidth; } 1848059e997ee05e4aa87f7e21fed630429a140ee53Chris Lattner unsigned getLongAlign() const { return LongAlign; } 1851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1869e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner /// getLongLongWidth/Align - Return the size of 'signed long long' and 1879e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner /// 'unsigned long long' for this target, in bits. 188ec10f5886526124ba733fbd0ef8665d576285daaChris Lattner unsigned getLongLongWidth() const { return LongLongWidth; } 189ec10f5886526124ba733fbd0ef8665d576285daaChris Lattner unsigned getLongLongAlign() const { return LongLongAlign; } 1901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 191f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith /// getWCharWidth/Align - Return the size of 'wchar_t' for this target, in 1929e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner /// bits. 1939184646509d015ea66e796113a8c68598681374bChris Lattner unsigned getWCharWidth() const { return getTypeWidth(WCharType); } 1949184646509d015ea66e796113a8c68598681374bChris Lattner unsigned getWCharAlign() const { return getTypeAlign(WCharType); } 195f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner 196f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith /// getChar16Width/Align - Return the size of 'char16_t' for this target, in 197f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith /// bits. 1989184646509d015ea66e796113a8c68598681374bChris Lattner unsigned getChar16Width() const { return getTypeWidth(Char16Type); } 1999184646509d015ea66e796113a8c68598681374bChris Lattner unsigned getChar16Align() const { return getTypeAlign(Char16Type); } 200f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith 201f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith /// getChar32Width/Align - Return the size of 'char32_t' for this target, in 202f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith /// bits. 2039184646509d015ea66e796113a8c68598681374bChris Lattner unsigned getChar32Width() const { return getTypeWidth(Char32Type); } 2049184646509d015ea66e796113a8c68598681374bChris Lattner unsigned getChar32Align() const { return getTypeAlign(Char32Type); } 205f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith 2069e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner /// getFloatWidth/Align/Format - Return the size/align/format of 'float'. 20761538a7d1336f3ef3cb81e09f11a1cbb282bcf81Eli Friedman unsigned getFloatWidth() const { return FloatWidth; } 20861538a7d1336f3ef3cb81e09f11a1cbb282bcf81Eli Friedman unsigned getFloatAlign() const { return FloatAlign; } 209b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner const llvm::fltSemantics &getFloatFormat() const { return *FloatFormat; } 2109e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner 2119e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner /// getDoubleWidth/Align/Format - Return the size/align/format of 'double'. 212c8b1227fa8c17d9881815e40c04e19334be536f8Nate Begeman unsigned getDoubleWidth() const { return DoubleWidth; } 213c8b1227fa8c17d9881815e40c04e19334be536f8Nate Begeman unsigned getDoubleAlign() const { return DoubleAlign; } 214b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner const llvm::fltSemantics &getDoubleFormat() const { return *DoubleFormat; } 2159e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner 2169e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner /// getLongDoubleWidth/Align/Format - Return the size/align/format of 'long 2179e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner /// double'. 21861538a7d1336f3ef3cb81e09f11a1cbb282bcf81Eli Friedman unsigned getLongDoubleWidth() const { return LongDoubleWidth; } 21961538a7d1336f3ef3cb81e09f11a1cbb282bcf81Eli Friedman unsigned getLongDoubleAlign() const { return LongDoubleAlign; } 220b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner const llvm::fltSemantics &getLongDoubleFormat() const { 221b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner return *LongDoubleFormat; 222cd4fc42896f926ffc081e1c4a8bf4cd647883c14Chris Lattner } 2231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2246deecb0d46bcfd048e651d2db7c4fb0d6407da96Rafael Espindola // getLargeArrayMinWidth/Align - Return the minimum array size that is 2256deecb0d46bcfd048e651d2db7c4fb0d6407da96Rafael Espindola // 'large' and its alignment. 2266deecb0d46bcfd048e651d2db7c4fb0d6407da96Rafael Espindola unsigned getLargeArrayMinWidth() const { return LargeArrayMinWidth; } 2276deecb0d46bcfd048e651d2db7c4fb0d6407da96Rafael Espindola unsigned getLargeArrayAlign() const { return LargeArrayAlign; } 2286deecb0d46bcfd048e651d2db7c4fb0d6407da96Rafael Espindola 2295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getIntMaxTWidth - Return the size of intmax_t and uintmax_t for this 2301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// target, in bits. 2310eaed12e634dfd14f44620f63b8d3276fed028ddChris Lattner unsigned getIntMaxTWidth() const { 2329184646509d015ea66e796113a8c68598681374bChris Lattner return getTypeWidth(IntMaxType); 2335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2353fdf4678935b27c3d3fd4eb10bf9f5ab98dc0d99Chris Lattner /// getUserLabelPrefix - This returns the default value of the 2363fdf4678935b27c3d3fd4eb10bf9f5ab98dc0d99Chris Lattner /// __USER_LABEL_PREFIX__ macro, which is the prefix given to user symbols by 2373fdf4678935b27c3d3fd4eb10bf9f5ab98dc0d99Chris Lattner /// default. On most platforms this is "_", but it is "" on some, and "." on 2383fdf4678935b27c3d3fd4eb10bf9f5ab98dc0d99Chris Lattner /// others. 2393fdf4678935b27c3d3fd4eb10bf9f5ab98dc0d99Chris Lattner const char *getUserLabelPrefix() const { 2403fdf4678935b27c3d3fd4eb10bf9f5ab98dc0d99Chris Lattner return UserLabelPrefix; 2413fdf4678935b27c3d3fd4eb10bf9f5ab98dc0d99Chris Lattner } 2421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 243b6830d616a068971f13e1e213e06a945c8c93ceaDaniel Dunbar bool useBitFieldTypeAlignment() const { 244b6830d616a068971f13e1e213e06a945c8c93ceaDaniel Dunbar return UseBitFieldTypeAlignment; 245b6a169395c1b30c76daffebcbd2164b6247a5d21Daniel Dunbar } 246b6a169395c1b30c76daffebcbd2164b6247a5d21Daniel Dunbar 247613fd67e575ff1c038535b18dafebca070f3ed91Daniel Dunbar /// hasAlignMac68kSupport - Check whether this target support '#pragma options 248613fd67e575ff1c038535b18dafebca070f3ed91Daniel Dunbar /// align=mac68k'. 249613fd67e575ff1c038535b18dafebca070f3ed91Daniel Dunbar bool hasAlignMac68kSupport() const { 250613fd67e575ff1c038535b18dafebca070f3ed91Daniel Dunbar return HasAlignMac68kSupport; 251613fd67e575ff1c038535b18dafebca070f3ed91Daniel Dunbar } 252613fd67e575ff1c038535b18dafebca070f3ed91Daniel Dunbar 2532b5abf515f9696912452f431c7738691cf97f4f1Chris Lattner /// getTypeName - Return the user string for the specified integer type enum. 2542b5abf515f9696912452f431c7738691cf97f4f1Chris Lattner /// For example, SignedShort -> "short". 2552b5abf515f9696912452f431c7738691cf97f4f1Chris Lattner static const char *getTypeName(IntType T); 2561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 257b304f77cb621a47221f2aa2d35acdb5c730421ffChris Lattner /// getTypeConstantSuffix - Return the constant suffix for the specified 258b304f77cb621a47221f2aa2d35acdb5c730421ffChris Lattner /// integer type enum. For example, SignedLong -> "L". 259b304f77cb621a47221f2aa2d35acdb5c730421ffChris Lattner static const char *getTypeConstantSuffix(IntType T); 260b304f77cb621a47221f2aa2d35acdb5c730421ffChris Lattner 261dacf9dda17346c628fdd8c5df53c681738db0dc5Daniel Dunbar /// \brief Check whether the given real type should use the "fpret" flavor of 262dacf9dda17346c628fdd8c5df53c681738db0dc5Daniel Dunbar /// Obj-C message passing on this target. 263dacf9dda17346c628fdd8c5df53c681738db0dc5Daniel Dunbar bool useObjCFPRetForRealType(RealType T) const { 264dacf9dda17346c628fdd8c5df53c681738db0dc5Daniel Dunbar return RealTypeUsesObjCFPRet & (1 << T); 265dacf9dda17346c628fdd8c5df53c681738db0dc5Daniel Dunbar } 266dacf9dda17346c628fdd8c5df53c681738db0dc5Daniel Dunbar 2679c4bea1fa7291035325575c02d33552a124d8ef3Chris Lattner ///===---- Other target property query methods --------------------------===// 2681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2699c4bea1fa7291035325575c02d33552a124d8ef3Chris Lattner /// getTargetDefines - Appends the target-specific #define values for this 2709c4bea1fa7291035325575c02d33552a124d8ef3Chris Lattner /// target set to the specified buffer. 27133328642a7a8a126918814ddcbcebf83c121ad54Chris Lattner virtual void getTargetDefines(const LangOptions &Opts, 272a99927774d07af9c6f0e1945531eadc910592945Benjamin Kramer MacroBuilder &Builder) const = 0; 2731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 274b304f77cb621a47221f2aa2d35acdb5c730421ffChris Lattner 2755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getTargetBuiltins - Return information about target-specific builtins for 2765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// the current primary target, and info about which builtins are non-portable 2775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// across the current set of primary and secondary targets. 2781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual void getTargetBuiltins(const Builtin::Info *&Records, 2790eaed12e634dfd14f44620f63b8d3276fed028ddChris Lattner unsigned &NumRecords) const = 0; 2805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 281d19144b244f86227fcc2b0da794929fe83968dd5Chris Lattner /// getVAListDeclaration - Return the declaration to use for 282d19144b244f86227fcc2b0da794929fe83968dd5Chris Lattner /// __builtin_va_list, which is target-specific. 2830eaed12e634dfd14f44620f63b8d3276fed028ddChris Lattner virtual const char *getVAListDeclaration() const = 0; 284fb5e5ba3c7708f3aef4db0ed30e8470b3ed4206aAnders Carlsson 2853346ae6bba10da0d08c8d548134ddab4e13d040fAnders Carlsson /// isValidGCCRegisterName - Returns whether the passed in string 2863346ae6bba10da0d08c8d548134ddab4e13d040fAnders Carlsson /// is a valid register name according to GCC. This is used by Sema for 2873346ae6bba10da0d08c8d548134ddab4e13d040fAnders Carlsson /// inline asm statements. 28883c021c6d33aa173cf1a6e3bc61006dabb042703Anders Carlsson bool isValidGCCRegisterName(llvm::StringRef Name) const; 289d04c6e23f2e10eeb9936778d67f4a1c4a14cc4f6Anders Carlsson 290d04c6e23f2e10eeb9936778d67f4a1c4a14cc4f6Anders Carlsson // getNormalizedGCCRegisterName - Returns the "normalized" GCC register name. 291d04c6e23f2e10eeb9936778d67f4a1c4a14cc4f6Anders Carlsson // For example, on x86 it will return "ax" when "eax" is passed in. 29283c021c6d33aa173cf1a6e3bc61006dabb042703Anders Carlsson llvm::StringRef getNormalizedGCCRegisterName(llvm::StringRef Name) const; 2931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 29444def070435a2b5d67f0534f7a3a85a7389d60f2Chris Lattner struct ConstraintInfo { 29544def070435a2b5d67f0534f7a3a85a7389d60f2Chris Lattner enum { 29644def070435a2b5d67f0534f7a3a85a7389d60f2Chris Lattner CI_None = 0x00, 29744def070435a2b5d67f0534f7a3a85a7389d60f2Chris Lattner CI_AllowsMemory = 0x01, 29844def070435a2b5d67f0534f7a3a85a7389d60f2Chris Lattner CI_AllowsRegister = 0x02, 299fa780fc4a4983003633c9b560387266101839923Chris Lattner CI_ReadWrite = 0x04, // "+r" output constraint (read and write). 300fa780fc4a4983003633c9b560387266101839923Chris Lattner CI_HasMatchingInput = 0x08 // This output operand has a matching input. 30144def070435a2b5d67f0534f7a3a85a7389d60f2Chris Lattner }; 30244def070435a2b5d67f0534f7a3a85a7389d60f2Chris Lattner unsigned Flags; 30344def070435a2b5d67f0534f7a3a85a7389d60f2Chris Lattner int TiedOperand; 3041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3052819fa85651526d59ade4fdc9da2cadd7b132973Chris Lattner std::string ConstraintStr; // constraint: "=rm" 3062819fa85651526d59ade4fdc9da2cadd7b132973Chris Lattner std::string Name; // Operand name: [foo] with no []'s. 307432c86969eced2ce658b3f3f2aa7407c8864f21bChris Lattner public: 308f959fb5fb82ae2cbdf8635d734613a01818fb7bfAnders Carlsson ConstraintInfo(llvm::StringRef ConstraintStr, llvm::StringRef Name) 309237cf582b89bbcc22640cea15426ddc7ada8412bMichael J. Spencer : Flags(0), TiedOperand(-1), ConstraintStr(ConstraintStr.str()), 310f959fb5fb82ae2cbdf8635d734613a01818fb7bfAnders Carlsson Name(Name.str()) {} 311432c86969eced2ce658b3f3f2aa7407c8864f21bChris Lattner 312432c86969eced2ce658b3f3f2aa7407c8864f21bChris Lattner const std::string &getConstraintStr() const { return ConstraintStr; } 3132819fa85651526d59ade4fdc9da2cadd7b132973Chris Lattner const std::string &getName() const { return Name; } 31444def070435a2b5d67f0534f7a3a85a7389d60f2Chris Lattner bool isReadWrite() const { return (Flags & CI_ReadWrite) != 0; } 31544def070435a2b5d67f0534f7a3a85a7389d60f2Chris Lattner bool allowsRegister() const { return (Flags & CI_AllowsRegister) != 0; } 31644def070435a2b5d67f0534f7a3a85a7389d60f2Chris Lattner bool allowsMemory() const { return (Flags & CI_AllowsMemory) != 0; } 3171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 318fa780fc4a4983003633c9b560387266101839923Chris Lattner /// hasMatchingInput - Return true if this output operand has a matching 319fa780fc4a4983003633c9b560387266101839923Chris Lattner /// (tied) input operand. 320fa780fc4a4983003633c9b560387266101839923Chris Lattner bool hasMatchingInput() const { return (Flags & CI_HasMatchingInput) != 0; } 3211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 322fa780fc4a4983003633c9b560387266101839923Chris Lattner /// hasTiedOperand() - Return true if this input operand is a matching 323fa780fc4a4983003633c9b560387266101839923Chris Lattner /// constraint that ties it to an output operand. If this returns true, 324fa780fc4a4983003633c9b560387266101839923Chris Lattner /// then getTiedOperand will indicate which output operand this is tied to. 32544def070435a2b5d67f0534f7a3a85a7389d60f2Chris Lattner bool hasTiedOperand() const { return TiedOperand != -1; } 32644def070435a2b5d67f0534f7a3a85a7389d60f2Chris Lattner unsigned getTiedOperand() const { 32744def070435a2b5d67f0534f7a3a85a7389d60f2Chris Lattner assert(hasTiedOperand() && "Has no tied operand!"); 32844def070435a2b5d67f0534f7a3a85a7389d60f2Chris Lattner return (unsigned)TiedOperand; 32944def070435a2b5d67f0534f7a3a85a7389d60f2Chris Lattner } 3301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33144def070435a2b5d67f0534f7a3a85a7389d60f2Chris Lattner void setIsReadWrite() { Flags |= CI_ReadWrite; } 33244def070435a2b5d67f0534f7a3a85a7389d60f2Chris Lattner void setAllowsMemory() { Flags |= CI_AllowsMemory; } 33344def070435a2b5d67f0534f7a3a85a7389d60f2Chris Lattner void setAllowsRegister() { Flags |= CI_AllowsRegister; } 334fa780fc4a4983003633c9b560387266101839923Chris Lattner void setHasMatchingInput() { Flags |= CI_HasMatchingInput; } 3351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 336d68876176a0d2c19e3864e7d38f6036c4f72f0a3Chris Lattner /// setTiedOperand - Indicate that this is an input operand that is tied to 337d68876176a0d2c19e3864e7d38f6036c4f72f0a3Chris Lattner /// the specified output operand. Copy over the various constraint 338d68876176a0d2c19e3864e7d38f6036c4f72f0a3Chris Lattner /// information from the output. 339d68876176a0d2c19e3864e7d38f6036c4f72f0a3Chris Lattner void setTiedOperand(unsigned N, ConstraintInfo &Output) { 340fa780fc4a4983003633c9b560387266101839923Chris Lattner Output.setHasMatchingInput(); 341d68876176a0d2c19e3864e7d38f6036c4f72f0a3Chris Lattner Flags = Output.Flags; 342d68876176a0d2c19e3864e7d38f6036c4f72f0a3Chris Lattner TiedOperand = N; 343d68876176a0d2c19e3864e7d38f6036c4f72f0a3Chris Lattner // Don't copy Name or constraint string. 344d68876176a0d2c19e3864e7d38f6036c4f72f0a3Chris Lattner } 345d04c6e23f2e10eeb9936778d67f4a1c4a14cc4f6Anders Carlsson }; 346d04c6e23f2e10eeb9936778d67f4a1c4a14cc4f6Anders Carlsson 347d04c6e23f2e10eeb9936778d67f4a1c4a14cc4f6Anders Carlsson // validateOutputConstraint, validateInputConstraint - Checks that 348d04c6e23f2e10eeb9936778d67f4a1c4a14cc4f6Anders Carlsson // a constraint is valid and provides information about it. 349d04c6e23f2e10eeb9936778d67f4a1c4a14cc4f6Anders Carlsson // FIXME: These should return a real error instead of just true/false. 350432c86969eced2ce658b3f3f2aa7407c8864f21bChris Lattner bool validateOutputConstraint(ConstraintInfo &Info) const; 3512819fa85651526d59ade4fdc9da2cadd7b132973Chris Lattner bool validateInputConstraint(ConstraintInfo *OutputConstraints, 3522819fa85651526d59ade4fdc9da2cadd7b132973Chris Lattner unsigned NumOutputs, 35345b050e72d058131e6f169fe54888bb91a003fb5Anders Carlsson ConstraintInfo &info) const; 35442e1ee0702d8267d632df0fdb5c479a582877c6fAnders Carlsson bool resolveSymbolicName(const char *&Name, 3552819fa85651526d59ade4fdc9da2cadd7b132973Chris Lattner ConstraintInfo *OutputConstraints, 3562819fa85651526d59ade4fdc9da2cadd7b132973Chris Lattner unsigned NumOutputs, unsigned &Index) const; 3571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3580eaed12e634dfd14f44620f63b8d3276fed028ddChris Lattner virtual std::string convertConstraint(const char Constraint) const { 3590eaed12e634dfd14f44620f63b8d3276fed028ddChris Lattner return std::string(1, Constraint); 3600eaed12e634dfd14f44620f63b8d3276fed028ddChris Lattner } 3611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 362d04c6e23f2e10eeb9936778d67f4a1c4a14cc4f6Anders Carlsson // Returns a string of target-specific clobbers, in LLVM format. 3630eaed12e634dfd14f44620f63b8d3276fed028ddChris Lattner virtual const char *getClobbers() const = 0; 3641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3657a4718e813e5e99d478567a482217c7eef8572c5Devang Patel 3661752ee4849f4c37f5e03193e658be92650b0e65aDaniel Dunbar /// getTriple - Return the target triple of the primary target. 3671752ee4849f4c37f5e03193e658be92650b0e65aDaniel Dunbar const llvm::Triple &getTriple() const { 3681752ee4849f4c37f5e03193e658be92650b0e65aDaniel Dunbar return Triple; 3690eaed12e634dfd14f44620f63b8d3276fed028ddChris Lattner } 3701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 371ae3607684c5978dc2d877141015056c9d24f17eaTed Kremenek const char *getTargetDescription() const { 372364af81157a81cf34bb058a7d5b0185020e5164bSanjiv Gupta return DescriptionString; 3737a4718e813e5e99d478567a482217c7eef8572c5Devang Patel } 3743346ae6bba10da0d08c8d548134ddab4e13d040fAnders Carlsson 3753346ae6bba10da0d08c8d548134ddab4e13d040fAnders Carlsson struct GCCRegAlias { 3763346ae6bba10da0d08c8d548134ddab4e13d040fAnders Carlsson const char * const Aliases[5]; 3773346ae6bba10da0d08c8d548134ddab4e13d040fAnders Carlsson const char * const Register; 3783346ae6bba10da0d08c8d548134ddab4e13d040fAnders Carlsson }; 3792621fd1d6d3c5eadcae246859f62738645df7540Chris Lattner 380dcb4a1a6dd55fdf6c073d2761096f42e26be105aDaniel Dunbar virtual bool useGlobalsForAutomaticVariables() const { return false; } 381dcb4a1a6dd55fdf6c073d2761096f42e26be105aDaniel Dunbar 3826d7d8398e71a8bd121d3b46e250f1dbcfb9679d4Daniel Dunbar /// getCFStringSection - Return the section to use for CFString 3838e5c2b8072f4409c7c0004331d1db9652d5209c0Daniel Dunbar /// literals, or 0 if no special section is used. 3841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual const char *getCFStringSection() const { 3858e5c2b8072f4409c7c0004331d1db9652d5209c0Daniel Dunbar return "__DATA,__cfstring"; 3868e5c2b8072f4409c7c0004331d1db9652d5209c0Daniel Dunbar } 3878e5c2b8072f4409c7c0004331d1db9652d5209c0Daniel Dunbar 3882bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian /// getNSStringSection - Return the section to use for NSString 3892bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian /// literals, or 0 if no special section is used. 3902bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian virtual const char *getNSStringSection() const { 3912bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian return "__OBJC,__cstring_object,regular,no_dead_strip"; 3922bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian } 3932bb5ddaff86ee73d2cea7ec1835978afc88a83f0Fariborz Jahanian 394237cf582b89bbcc22640cea15426ddc7ada8412bMichael J. Spencer /// getNSStringNonFragileABISection - Return the section to use for 395ec951e0c2fc0db00c36bc60c900331dde32c1b43Fariborz Jahanian /// NSString literals, or 0 if no special section is used (NonFragile ABI). 396ec951e0c2fc0db00c36bc60c900331dde32c1b43Fariborz Jahanian virtual const char *getNSStringNonFragileABISection() const { 397ec951e0c2fc0db00c36bc60c900331dde32c1b43Fariborz Jahanian return "__DATA, __objc_stringobj, regular, no_dead_strip"; 398ec951e0c2fc0db00c36bc60c900331dde32c1b43Fariborz Jahanian } 399ec951e0c2fc0db00c36bc60c900331dde32c1b43Fariborz Jahanian 400797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner /// isValidSectionSpecifier - This is an optional hook that targets can 401797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner /// implement to perform semantic checking on attribute((section("foo"))) 402797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner /// specifiers. In this case, "foo" is passed in to be checked. If the 403797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner /// section specifier is invalid, the backend should return a non-empty string 404797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner /// that indicates the problem. 405797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner /// 406797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner /// This hook is a simple quality of implementation feature to catch errors 407797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner /// and give good diagnostics in cases when the assembler or code generator 408797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner /// would otherwise reject the section specifier. 409797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner /// 410f959fb5fb82ae2cbdf8635d734613a01818fb7bfAnders Carlsson virtual std::string isValidSectionSpecifier(llvm::StringRef SR) const { 411797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner return ""; 412797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner } 4138e5c2b8072f4409c7c0004331d1db9652d5209c0Daniel Dunbar 414a6fda124bf380479529d6a80b84b62cacd3cb707John Thompson /// setForcedLangOptions - Set forced language options. 415a6fda124bf380479529d6a80b84b62cacd3cb707John Thompson /// Apply changes to the target information with respect to certain 416a6fda124bf380479529d6a80b84b62cacd3cb707John Thompson /// language options which change the target configuration. 417a6fda124bf380479529d6a80b84b62cacd3cb707John Thompson virtual void setForcedLangOptions(LangOptions &Opts); 418a6fda124bf380479529d6a80b84b62cacd3cb707John Thompson 419868bd0aa9281929ef50d2e9a8c82a036906f53f5Daniel Dunbar /// getDefaultFeatures - Get the default set of target features for 420868bd0aa9281929ef50d2e9a8c82a036906f53f5Daniel Dunbar /// the \args CPU; this should include all legal feature strings on 421868bd0aa9281929ef50d2e9a8c82a036906f53f5Daniel Dunbar /// the target. 4221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual void getDefaultFeatures(const std::string &CPU, 42317ca3638e852ba81f389e9f896ed0420b52ae606Daniel Dunbar llvm::StringMap<bool> &Features) const { 42417ca3638e852ba81f389e9f896ed0420b52ae606Daniel Dunbar } 42517ca3638e852ba81f389e9f896ed0420b52ae606Daniel Dunbar 426018ba5ab0671d9b6eefecaffc118c869bea151a1Daniel Dunbar /// getABI - Get the ABI in use. 427018ba5ab0671d9b6eefecaffc118c869bea151a1Daniel Dunbar virtual const char *getABI() const { 428018ba5ab0671d9b6eefecaffc118c869bea151a1Daniel Dunbar return ""; 429018ba5ab0671d9b6eefecaffc118c869bea151a1Daniel Dunbar } 430018ba5ab0671d9b6eefecaffc118c869bea151a1Daniel Dunbar 43198b7c5c496dfccb39287b8f7d8f1444594936d10Charles Davis /// getCXXABI - Get the C++ ABI in use. 43220cf717034ba1f20fc47c025ecb72ed9b631ad13Charles Davis virtual TargetCXXABI getCXXABI() const { 43398b7c5c496dfccb39287b8f7d8f1444594936d10Charles Davis return CXXABI; 43498b7c5c496dfccb39287b8f7d8f1444594936d10Charles Davis } 43598b7c5c496dfccb39287b8f7d8f1444594936d10Charles Davis 436eac7c53f16bc12bcd9baac756b6f9bb77b74b0adDaniel Dunbar /// setCPU - Target the specific CPU. 437eac7c53f16bc12bcd9baac756b6f9bb77b74b0adDaniel Dunbar /// 438eac7c53f16bc12bcd9baac756b6f9bb77b74b0adDaniel Dunbar /// \return - False on error (invalid CPU name). 439eac7c53f16bc12bcd9baac756b6f9bb77b74b0adDaniel Dunbar // 440eac7c53f16bc12bcd9baac756b6f9bb77b74b0adDaniel Dunbar // FIXME: Remove this. 441eac7c53f16bc12bcd9baac756b6f9bb77b74b0adDaniel Dunbar virtual bool setCPU(const std::string &Name) { 442eac7c53f16bc12bcd9baac756b6f9bb77b74b0adDaniel Dunbar return true; 443eac7c53f16bc12bcd9baac756b6f9bb77b74b0adDaniel Dunbar } 444eac7c53f16bc12bcd9baac756b6f9bb77b74b0adDaniel Dunbar 44573b79596bac6f6169e5979d0c7241924259d2a76Daniel Dunbar /// setABI - Use the specific ABI. 44673b79596bac6f6169e5979d0c7241924259d2a76Daniel Dunbar /// 44773b79596bac6f6169e5979d0c7241924259d2a76Daniel Dunbar /// \return - False on error (invalid ABI name). 44873b79596bac6f6169e5979d0c7241924259d2a76Daniel Dunbar virtual bool setABI(const std::string &Name) { 44973b79596bac6f6169e5979d0c7241924259d2a76Daniel Dunbar return false; 45073b79596bac6f6169e5979d0c7241924259d2a76Daniel Dunbar } 45173b79596bac6f6169e5979d0c7241924259d2a76Daniel Dunbar 45298b7c5c496dfccb39287b8f7d8f1444594936d10Charles Davis /// setCXXABI - Use this specific C++ ABI. 45398b7c5c496dfccb39287b8f7d8f1444594936d10Charles Davis /// 45420cf717034ba1f20fc47c025ecb72ed9b631ad13Charles Davis /// \return - False on error (invalid C++ ABI name). 455ee79a4c30e5d1c5285551c9a25b8ec6d45d46aa7John McCall bool setCXXABI(const std::string &Name) { 456ee79a4c30e5d1c5285551c9a25b8ec6d45d46aa7John McCall static const TargetCXXABI Unknown = static_cast<TargetCXXABI>(-1); 457ee79a4c30e5d1c5285551c9a25b8ec6d45d46aa7John McCall TargetCXXABI ABI = llvm::StringSwitch<TargetCXXABI>(Name) 458ee79a4c30e5d1c5285551c9a25b8ec6d45d46aa7John McCall .Case("arm", CXXABI_ARM) 45920cf717034ba1f20fc47c025ecb72ed9b631ad13Charles Davis .Case("itanium", CXXABI_Itanium) 46020cf717034ba1f20fc47c025ecb72ed9b631ad13Charles Davis .Case("microsoft", CXXABI_Microsoft) 461ee79a4c30e5d1c5285551c9a25b8ec6d45d46aa7John McCall .Default(Unknown); 462ee79a4c30e5d1c5285551c9a25b8ec6d45d46aa7John McCall if (ABI == Unknown) return false; 463ee79a4c30e5d1c5285551c9a25b8ec6d45d46aa7John McCall return setCXXABI(ABI); 464ee79a4c30e5d1c5285551c9a25b8ec6d45d46aa7John McCall } 465ee79a4c30e5d1c5285551c9a25b8ec6d45d46aa7John McCall 466ee79a4c30e5d1c5285551c9a25b8ec6d45d46aa7John McCall /// setCXXABI - Set the C++ ABI to be used by this implementation. 467ee79a4c30e5d1c5285551c9a25b8ec6d45d46aa7John McCall /// 468ee79a4c30e5d1c5285551c9a25b8ec6d45d46aa7John McCall /// \return - False on error (ABI not valid on this target) 469ee79a4c30e5d1c5285551c9a25b8ec6d45d46aa7John McCall virtual bool setCXXABI(TargetCXXABI ABI) { 470ee79a4c30e5d1c5285551c9a25b8ec6d45d46aa7John McCall CXXABI = ABI; 47198b7c5c496dfccb39287b8f7d8f1444594936d10Charles Davis return true; 47298b7c5c496dfccb39287b8f7d8f1444594936d10Charles Davis } 47398b7c5c496dfccb39287b8f7d8f1444594936d10Charles Davis 47417ca3638e852ba81f389e9f896ed0420b52ae606Daniel Dunbar /// setFeatureEnabled - Enable or disable a specific target feature, 47517ca3638e852ba81f389e9f896ed0420b52ae606Daniel Dunbar /// the feature name must be valid. 47617ca3638e852ba81f389e9f896ed0420b52ae606Daniel Dunbar /// 47717ca3638e852ba81f389e9f896ed0420b52ae606Daniel Dunbar /// \return - False on error (invalid feature name). 47817ca3638e852ba81f389e9f896ed0420b52ae606Daniel Dunbar virtual bool setFeatureEnabled(llvm::StringMap<bool> &Features, 47917ca3638e852ba81f389e9f896ed0420b52ae606Daniel Dunbar const std::string &Name, 48017ca3638e852ba81f389e9f896ed0420b52ae606Daniel Dunbar bool Enabled) const { 48117ca3638e852ba81f389e9f896ed0420b52ae606Daniel Dunbar return false; 482868bd0aa9281929ef50d2e9a8c82a036906f53f5Daniel Dunbar } 483868bd0aa9281929ef50d2e9a8c82a036906f53f5Daniel Dunbar 48429a790ba422cfeeea9546b6e76777d98fa73cd67Daniel Dunbar /// HandleTargetOptions - Perform initialization based on the user configured 48529a790ba422cfeeea9546b6e76777d98fa73cd67Daniel Dunbar /// set of features (e.g., +sse4). The list is guaranteed to have at most one 48629a790ba422cfeeea9546b6e76777d98fa73cd67Daniel Dunbar /// entry per feature. 487b93292ab7f2b3d43a9e0ad6421f572d1f5a323b4Daniel Dunbar /// 488b93292ab7f2b3d43a9e0ad6421f572d1f5a323b4Daniel Dunbar /// The target may modify the features list, to change which options are 489b93292ab7f2b3d43a9e0ad6421f572d1f5a323b4Daniel Dunbar /// passed onwards to the backend. 490b93292ab7f2b3d43a9e0ad6421f572d1f5a323b4Daniel Dunbar virtual void HandleTargetFeatures(std::vector<std::string> &Features) { 49116167a6e3f7dfb7ed0babc5e0baab9fd140e959dChris Lattner } 492264a76cdf382c507f4d43e64c89f1503f003ac95Anton Korobeynikov 493264a76cdf382c507f4d43e64c89f1503f003ac95Anton Korobeynikov // getRegParmMax - Returns maximal number of args passed in registers. 494264a76cdf382c507f4d43e64c89f1503f003ac95Anton Korobeynikov unsigned getRegParmMax() const { 495264a76cdf382c507f4d43e64c89f1503f003ac95Anton Korobeynikov return RegParmMax; 496264a76cdf382c507f4d43e64c89f1503f003ac95Anton Korobeynikov } 497264a76cdf382c507f4d43e64c89f1503f003ac95Anton Korobeynikov 49821fb98ee003e992b0c4e204d98a19e0ef544cae3Chris Lattner /// isTLSSupported - Whether the target supports thread-local storage. 4996a3bc6df36848188e9d0c1d978170c2b0918c6a3Chris Lattner bool isTLSSupported() const { 500b030f0272500c6c5602f587ac029ee0dc0e5a05cEli Friedman return TLSSupported; 501b030f0272500c6c5602f587ac029ee0dc0e5a05cEli Friedman } 502237cf582b89bbcc22640cea15426ddc7ada8412bMichael J. Spencer 5039bffb0701d02a10e77e1ac0f196074eed6466ed0Chris Lattner /// hasNoAsmVariants - Return true if {|} are normal characters in the 5049bffb0701d02a10e77e1ac0f196074eed6466ed0Chris Lattner /// asm string. If this returns false (the default), then {abc|xyz} is syntax 50537de281ac149a5c5f14e4935a3738d87370da3edChris Lattner /// that says that when compiling for asm variant #0, "abc" should be 5069bffb0701d02a10e77e1ac0f196074eed6466ed0Chris Lattner /// generated, but when compiling for asm variant #1, "xyz" should be 5079bffb0701d02a10e77e1ac0f196074eed6466ed0Chris Lattner /// generated. 5089bffb0701d02a10e77e1ac0f196074eed6466ed0Chris Lattner bool hasNoAsmVariants() const { 5099bffb0701d02a10e77e1ac0f196074eed6466ed0Chris Lattner return NoAsmVariants; 5109bffb0701d02a10e77e1ac0f196074eed6466ed0Chris Lattner } 511237cf582b89bbcc22640cea15426ddc7ada8412bMichael J. Spencer 51221fb98ee003e992b0c4e204d98a19e0ef544cae3Chris Lattner /// getEHDataRegisterNumber - Return the register number that 51321fb98ee003e992b0c4e204d98a19e0ef544cae3Chris Lattner /// __builtin_eh_return_regno would return with the specified argument. 51421fb98ee003e992b0c4e204d98a19e0ef544cae3Chris Lattner virtual int getEHDataRegisterNumber(unsigned RegNo) const { 515237cf582b89bbcc22640cea15426ddc7ada8412bMichael J. Spencer return -1; 51621fb98ee003e992b0c4e204d98a19e0ef544cae3Chris Lattner } 517237cf582b89bbcc22640cea15426ddc7ada8412bMichael J. Spencer 518237cf582b89bbcc22640cea15426ddc7ada8412bMichael J. Spencer /// getStaticInitSectionSpecifier - Return the section to use for C++ static 51918af368c080b9d60e34e670cd01f7d2d3ad2ba48Anders Carlsson /// initialization functions. 52018af368c080b9d60e34e670cd01f7d2d3ad2ba48Anders Carlsson virtual const char *getStaticInitSectionSpecifier() const { 52118af368c080b9d60e34e670cd01f7d2d3ad2ba48Anders Carlsson return 0; 52218af368c080b9d60e34e670cd01f7d2d3ad2ba48Anders Carlsson } 523237cf582b89bbcc22640cea15426ddc7ada8412bMichael J. Spencer 5240eaed12e634dfd14f44620f63b8d3276fed028ddChris Lattnerprotected: 5250e5d4ef3155651af17a90fdc07d9f80b33935c0cChris Lattner virtual uint64_t getPointerWidthV(unsigned AddrSpace) const { 5260e5d4ef3155651af17a90fdc07d9f80b33935c0cChris Lattner return PointerWidth; 5270e5d4ef3155651af17a90fdc07d9f80b33935c0cChris Lattner } 5280e5d4ef3155651af17a90fdc07d9f80b33935c0cChris Lattner virtual uint64_t getPointerAlignV(unsigned AddrSpace) const { 5290e5d4ef3155651af17a90fdc07d9f80b33935c0cChris Lattner return PointerAlign; 5300e5d4ef3155651af17a90fdc07d9f80b33935c0cChris Lattner } 53131fc07df7f0fc89ebf83ca05a20b29de45a7598dSanjiv Gupta virtual enum IntType getPtrDiffTypeV(unsigned AddrSpace) const { 53231fc07df7f0fc89ebf83ca05a20b29de45a7598dSanjiv Gupta return PtrDiffType; 53331fc07df7f0fc89ebf83ca05a20b29de45a7598dSanjiv Gupta } 5341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual void getGCCRegNames(const char * const *&Names, 5350eaed12e634dfd14f44620f63b8d3276fed028ddChris Lattner unsigned &NumNames) const = 0; 5361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual void getGCCRegAliases(const GCCRegAlias *&Aliases, 5373346ae6bba10da0d08c8d548134ddab4e13d040fAnders Carlsson unsigned &NumAliases) const = 0; 5381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual bool validateAsmConstraint(const char *&Name, 539d04c6e23f2e10eeb9936778d67f4a1c4a14cc4f6Anders Carlsson TargetInfo::ConstraintInfo &info) const= 0; 5405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 5415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace clang 5435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#endif 545