maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity
llvm-project/clang/lib/Basic/Targets.cpp

1121 lines
37 KiB
C++
Raw Blame History

//===--- Targets.cpp - Implement -arch option and targets -----------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file implements construction of a TargetInfo object from a
// target triple.
//
//===----------------------------------------------------------------------===//
// FIXME: Layering violation
#include "clang/AST/Builtins.h"
#include "clang/AST/TargetBuiltins.h"
#include "clang/Basic/TargetInfo.h"
#include "clang/Basic/LangOptions.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/APFloat.h"
using namespace clang;
//===----------------------------------------------------------------------===//
// Common code shared among targets.
//===----------------------------------------------------------------------===//
static void Define(std::vector<char> &Buf, const char *Macro,
const char *Val = "1") {
const char *Def = "#define ";
Buf.insert(Buf.end(), Def, Def+strlen(Def));
Buf.insert(Buf.end(), Macro, Macro+strlen(Macro));
Buf.push_back(' ');
Buf.insert(Buf.end(), Val, Val+strlen(Val));
Buf.push_back('\n');
}
//===----------------------------------------------------------------------===//
// Defines specific to certain operating systems.
//===----------------------------------------------------------------------===//
static void getSolarisDefines(std::vector<char> &Defs) {
Define(Defs, "__SUN__");
Define(Defs, "__SOLARIS__");
}
static void getFreeBSDDefines(std::vector<char> &Defs, bool is64Bit,
const char *Triple) {
// FreeBSD defines; list based off of gcc output
const char *FreeBSD = strstr(Triple, "-freebsd");
FreeBSD += strlen("-freebsd");
char release[] = "X";
release[0] = FreeBSD[0];
char version[] = "X00001";
version[0] = FreeBSD[0];
Define(Defs, "__FreeBSD__", release);
Define(Defs, "__FreeBSD_cc_version", version);
Define(Defs, "__KPRINTF_ATTRIBUTE__");
Define(Defs, "unix");
Define(Defs, "__ELF__", "1");
if (is64Bit) {
Define(Defs, "__LP64__");
}
}
static void getDragonFlyDefines(std::vector<char> &Defs) {
// DragonFly defines; list based off of gcc output
Define(Defs, "__DragonFly__");
Define(Defs, "__DragonFly_cc_version", "100001");
Define(Defs, "__ELF__");
Define(Defs, "__KPRINTF_ATTRIBUTE__");
Define(Defs, "__tune_i386__");
Define(Defs, "unix");
Define(Defs, "__unix");
Define(Defs, "__unix__");
}
static void getLinuxDefines(std::vector<char> &Defs) {
// Linux defines; list based off of gcc output
Define(Defs, "__unix__");
Define(Defs, "__unix");
Define(Defs, "unix");
Define(Defs, "__linux__");
Define(Defs, "__linux");
Define(Defs, "linux");
Define(Defs, "__gnu_linux__");
Define(Defs, "__ELF__", "1");
}
/// getDarwinNumber - Parse the 'darwin number' out of the specific targe
/// triple. For example, if we have darwin8.5 return 8,5,4. If any entry is
/// not defined, return 0's. Return true if we have -darwin in the string or
/// false otherwise.
static bool getDarwinNumber(const char *Triple, unsigned &Maj, unsigned &Min) {
Maj = Min = 0;
const char *Darwin = strstr(Triple, "-darwin");
if (Darwin == 0) return false;
Darwin += strlen("-darwin");
if (Darwin[0] < '0' || Darwin[0] > '9')
return true;
Maj = Darwin[0]-'0';
++Darwin;
// Handle "darwin11".
if (Maj == 1 && Darwin[0] >= '0' && Darwin[0] <= '9') {
Maj = 10+Darwin[0]-'0';
++Darwin;
}
// Handle minor version: 10.4.9 -> darwin8.9 -> "1049"
if (Darwin[0] == '.' && Darwin[1] >= '0' && Darwin[1] <= '9' &&
Darwin[2] == '\0')
Min = Darwin[1]-'0';
return true;
}
static void getDarwinDefines(std::vector<char> &Defs, const char *Triple) {
Define(Defs, "__APPLE__");
Define(Defs, "__MACH__");
Define(Defs, "OBJC_NEW_PROPERTIES");
// FIXME: OBJC_ZEROCOST_EXCEPTIONS when using zero cost eh.
// Figure out which "darwin number" the target triple is. "darwin9" -> 10.5.
unsigned Maj, Min;
if (getDarwinNumber(Triple, Maj, Min)) {
char DarwinStr[] = "1000";
if (Maj >= 4 && Maj <= 13) { // 10.0-10.9
// darwin7 -> 1030, darwin8 -> 1040, darwin9 -> 1050, etc.
DarwinStr[2] = '0' + Maj-4;
}
// Handle minor version: 10.4.9 -> darwin8.9 -> "1049"
DarwinStr[3] = Min+'0';
Define(Defs, "__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__", DarwinStr);
}
}
/// GetDarwinLanguageOptions - Set the default language options for darwin.
static void GetDarwinLanguageOptions(LangOptions &Opts,
const char *Triple) {
Opts.NeXTRuntime = true;
unsigned Maj, Min;
if (!getDarwinNumber(Triple, Maj, Min))
return;
// Blocks default to on for 10.6 (darwin10) and beyond.
// As does nonfragile-abi for 64bit mode
if (Maj > 9)
Opts.Blocks = 1;
if (Maj >= 9 && Opts.ObjC1 && !strncmp(Triple, "x86_64", 6))
Opts.ObjCNonFragileABI = 1;
}
//===----------------------------------------------------------------------===//
// Specific target implementations.
//===----------------------------------------------------------------------===//
namespace {
// PPC abstract base class
class PPCTargetInfo : public TargetInfo {
static const Builtin::Info BuiltinInfo[];
static const char * const GCCRegNames[];
static const TargetInfo::GCCRegAlias GCCRegAliases[];
public:
PPCTargetInfo(const std::string& triple) : TargetInfo(triple) {
CharIsSigned = false;
}
virtual void getTargetBuiltins(const Builtin::Info *&Records,
unsigned &NumRecords) const {
Records = BuiltinInfo;
NumRecords = clang::PPC::LastTSBuiltin-Builtin::FirstTSBuiltin;
}
virtual void getTargetDefines(const LangOptions &Opts,
std::vector<char> &Defines) const;
virtual const char *getVAListDeclaration() const {
return "typedef char* __builtin_va_list;";
// This is the right definition for ABI/V4: System V.4/eabi.
/*return "typedef struct __va_list_tag {"
" unsigned char gpr;"
" unsigned char fpr;"
" unsigned short reserved;"
" void* overflow_arg_area;"
" void* reg_save_area;"
"} __builtin_va_list[1];";*/
}
virtual const char *getTargetPrefix() const {
return "ppc";
}
virtual void getGCCRegNames(const char * const *&Names,
unsigned &NumNames) const;
virtual void getGCCRegAliases(const GCCRegAlias *&Aliases,
unsigned &NumAliases) const;
virtual bool validateAsmConstraint(const char *&Name,
TargetInfo::ConstraintInfo &info) const {
switch (*Name) {
default: return false;
case 'O': // Zero
return true;
case 'b': // Base register
case 'f': // Floating point register
info = (TargetInfo::ConstraintInfo)(info|TargetInfo::CI_AllowsRegister);
return true;
}
}
virtual const char *getClobbers() const {
return "";
}
};
const Builtin::Info PPCTargetInfo::BuiltinInfo[] = {
#define BUILTIN(ID, TYPE, ATTRS) { #ID, TYPE, ATTRS, 0, false },
#define LIBBUILTIN(ID, TYPE, ATTRS, HEADER) { #ID, TYPE, ATTRS, HEADER, false },
#include "clang/AST/PPCBuiltins.def"
};
/// PPCTargetInfo::getTargetDefines - Return a set of the PowerPC-specific
/// #defines that are not tied to a specific subtarget.
void PPCTargetInfo::getTargetDefines(const LangOptions &Opts,
std::vector<char> &Defs) const {
// Target identification.
Define(Defs, "__ppc__");
Define(Defs, "_ARCH_PPC");
Define(Defs, "__POWERPC__");
if (PointerWidth == 64) {
Define(Defs, "_ARCH_PPC64");
Define(Defs, "_LP64");
Define(Defs, "__LP64__");
Define(Defs, "__ppc64__");
} else {
Define(Defs, "__ppc__");
}
// Target properties.
Define(Defs, "_BIG_ENDIAN");
Define(Defs, "__BIG_ENDIAN__");
// Subtarget options.
Define(Defs, "__NATURAL_ALIGNMENT__");
Define(Defs, "__REGISTER_PREFIX__", "");
// FIXME: Should be controlled by command line option.
Define(Defs, "__LONG_DOUBLE_128__");
}
const char * const PPCTargetInfo::GCCRegNames[] = {
"0", "1", "2", "3", "4", "5", "6", "7",
"8", "9", "10", "11", "12", "13", "14", "15",
"16", "17", "18", "19", "20", "21", "22", "23",
"24", "25", "26", "27", "28", "29", "30", "31",
"0", "1", "2", "3", "4", "5", "6", "7",
"8", "9", "10", "11", "12", "13", "14", "15",
"16", "17", "18", "19", "20", "21", "22", "23",
"24", "25", "26", "27", "28", "29", "30", "31",
"mq", "lr", "ctr", "ap",
"0", "1", "2", "3", "4", "5", "6", "7",
"xer",
"0", "1", "2", "3", "4", "5", "6", "7",
"8", "9", "10", "11", "12", "13", "14", "15",
"16", "17", "18", "19", "20", "21", "22", "23",
"24", "25", "26", "27", "28", "29", "30", "31",
"vrsave", "vscr",
"spe_acc", "spefscr",
"sfp"
};
void PPCTargetInfo::getGCCRegNames(const char * const *&Names,
unsigned &NumNames) const {
Names = GCCRegNames;
NumNames = llvm::array_lengthof(GCCRegNames);
}
const TargetInfo::GCCRegAlias PPCTargetInfo::GCCRegAliases[] = {
// While some of these aliases do map to different registers
// they still share the same register name.
{ { "cc", "cr0", "fr0", "r0", "v0"}, "0" },
{ { "cr1", "fr1", "r1", "sp", "v1"}, "1" },
{ { "cr2", "fr2", "r2", "toc", "v2"}, "2" },
{ { "cr3", "fr3", "r3", "v3"}, "3" },
{ { "cr4", "fr4", "r4", "v4"}, "4" },
{ { "cr5", "fr5", "r5", "v5"}, "5" },
{ { "cr6", "fr6", "r6", "v6"}, "6" },
{ { "cr7", "fr7", "r7", "v7"}, "7" },
{ { "fr8", "r8", "v8"}, "8" },
{ { "fr9", "r9", "v9"}, "9" },
{ { "fr10", "r10", "v10"}, "10" },
{ { "fr11", "r11", "v11"}, "11" },
{ { "fr12", "r12", "v12"}, "12" },
{ { "fr13", "r13", "v13"}, "13" },
{ { "fr14", "r14", "v14"}, "14" },
{ { "fr15", "r15", "v15"}, "15" },
{ { "fr16", "r16", "v16"}, "16" },
{ { "fr17", "r17", "v17"}, "17" },
{ { "fr18", "r18", "v18"}, "18" },
{ { "fr19", "r19", "v19"}, "19" },
{ { "fr20", "r20", "v20"}, "20" },
{ { "fr21", "r21", "v21"}, "21" },
{ { "fr22", "r22", "v22"}, "22" },
{ { "fr23", "r23", "v23"}, "23" },
{ { "fr24", "r24", "v24"}, "24" },
{ { "fr25", "r25", "v25"}, "25" },
{ { "fr26", "r26", "v26"}, "26" },
{ { "fr27", "r27", "v27"}, "27" },
{ { "fr28", "r28", "v28"}, "28" },
{ { "fr29", "r29", "v29"}, "29" },
{ { "fr30", "r30", "v30"}, "30" },
{ { "fr31", "r31", "v31"}, "31" },
};
void PPCTargetInfo::getGCCRegAliases(const GCCRegAlias *&Aliases,
unsigned &NumAliases) const {
Aliases = GCCRegAliases;
NumAliases = llvm::array_lengthof(GCCRegAliases);
}
} // end anonymous namespace.
namespace {
class PPC32TargetInfo : public PPCTargetInfo {
public:
PPC32TargetInfo(const std::string& triple) : PPCTargetInfo(triple) {
DescriptionString = "E-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-"
"i64:64:64-f32:32:32-f64:64:64-v128:128:128";
}
};
} // end anonymous namespace.
namespace {
class PPC64TargetInfo : public PPCTargetInfo {
public:
PPC64TargetInfo(const std::string& triple) : PPCTargetInfo(triple) {
LongWidth = LongAlign = PointerWidth = PointerAlign = 64;
DescriptionString = "E-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-"
"i64:64:64-f32:32:32-f64:64:64-v128:128:128";
}
};
} // end anonymous namespace.
namespace {
class DarwinPPCTargetInfo : public PPC32TargetInfo {
public:
DarwinPPCTargetInfo(const std::string& triple) : PPC32TargetInfo(triple) {}
virtual void getTargetDefines(const LangOptions &Opts,
std::vector<char> &Defines) const {
PPC32TargetInfo::getTargetDefines(Opts, Defines);
getDarwinDefines(Defines, getTargetTriple());
}
/// getDefaultLangOptions - Allow the target to specify default settings for
/// various language options. These may be overridden by command line
/// options.
virtual void getDefaultLangOptions(LangOptions &Opts) {
GetDarwinLanguageOptions(Opts, getTargetTriple());
}
};
} // end anonymous namespace.
namespace {
class DarwinPPC64TargetInfo : public PPC64TargetInfo {
public:
DarwinPPC64TargetInfo(const std::string& triple) : PPC64TargetInfo(triple) {}
virtual void getTargetDefines(const LangOptions &Opts,
std::vector<char> &Defines) const {
PPC64TargetInfo::getTargetDefines(Opts, Defines);
getDarwinDefines(Defines, getTargetTriple());
}
/// getDefaultLangOptions - Allow the target to specify default settings for
/// various language options. These may be overridden by command line
/// options.
virtual void getDefaultLangOptions(LangOptions &Opts) {
GetDarwinLanguageOptions(Opts, getTargetTriple());
}
};
} // end anonymous namespace.
namespace {
// Namespace for x86 abstract base class
const Builtin::Info BuiltinInfo[] = {
#define BUILTIN(ID, TYPE, ATTRS) { #ID, TYPE, ATTRS, 0, false },
#define LIBBUILTIN(ID, TYPE, ATTRS, HEADER) { #ID, TYPE, ATTRS, HEADER, false },
#include "clang/AST/X86Builtins.def"
};
const char *GCCRegNames[] = {
"ax", "dx", "cx", "bx", "si", "di", "bp", "sp",
"st", "st(1)", "st(2)", "st(3)", "st(4)", "st(5)", "st(6)", "st(7)",
"argp", "flags", "fspr", "dirflag", "frame",
"xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6", "xmm7",
"mm0", "mm1", "mm2", "mm3", "mm4", "mm5", "mm6", "mm7",
"r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15",
"xmm8", "xmm9", "xmm10", "xmm11", "xmm12", "xmm13", "xmm14", "xmm15"
};
const TargetInfo::GCCRegAlias GCCRegAliases[] = {
{ { "al", "ah", "eax", "rax" }, "ax" },
{ { "bl", "bh", "ebx", "rbx" }, "bx" },
{ { "cl", "ch", "ecx", "rcx" }, "cx" },
{ { "dl", "dh", "edx", "rdx" }, "dx" },
{ { "esi", "rsi" }, "si" },
{ { "edi", "rdi" }, "di" },
{ { "esp", "rsp" }, "sp" },
{ { "ebp", "rbp" }, "bp" },
};
// X86 target abstract base class; x86-32 and x86-64 are very close, so
// most of the implementation can be shared.
class X86TargetInfo : public TargetInfo {
enum X86SSEEnum {
NoMMXSSE, MMX, SSE1, SSE2, SSE3, SSSE3, SSE41, SSE42
} SSELevel;
public:
X86TargetInfo(const std::string& triple)
: TargetInfo(triple),
// FIXME: hard coding to SSE2 for now. This should change to NoMMXSSE so
// that the driver controls this.
SSELevel(SSE2) {
LongDoubleFormat = &llvm::APFloat::x87DoubleExtended;
}
virtual void getTargetBuiltins(const Builtin::Info *&Records,
unsigned &NumRecords) const {
Records = BuiltinInfo;
NumRecords = clang::X86::LastTSBuiltin-Builtin::FirstTSBuiltin;
}
virtual const char *getTargetPrefix() const {
return "x86";
}
virtual void getGCCRegNames(const char * const *&Names,
unsigned &NumNames) const {
Names = GCCRegNames;
NumNames = llvm::array_lengthof(GCCRegNames);
}
virtual void getGCCRegAliases(const GCCRegAlias *&Aliases,
unsigned &NumAliases) const {
Aliases = GCCRegAliases;
NumAliases = llvm::array_lengthof(GCCRegAliases);
}
virtual bool validateAsmConstraint(const char *&Name,
TargetInfo::ConstraintInfo &info) const;
virtual std::string convertConstraint(const char Constraint) const;
virtual const char *getClobbers() const {
return "~{dirflag},~{fpsr},~{flags}";
}
virtual void getTargetDefines(const LangOptions &Opts,
std::vector<char> &Defines) const;
virtual int HandleTargetFeatures(std::string *StrArray, unsigned NumStrs,
std::string &ErrorReason);
};
/// HandleTargetOptions - Handle target-specific options like -msse2 and
/// friends. An array of arguments is passed in: if they are all valid, this
/// should handle them and return -1. If there is an error, the index of the
/// invalid argument should be returned along with an optional error string.
int X86TargetInfo::HandleTargetFeatures(std::string *StrArray, unsigned NumStrs,
std::string &ErrorReason) {
for (unsigned i = 0; i != NumStrs; ++i) {
const std::string &Feature = StrArray[i];
if (Feature.size() < 2) return i;
// Ignore explicitly disabled features.
if (Feature[0] == '-') continue;
// Feature strings are of the form "+feature".
if (Feature[0] != '+') return i;
// The set of supported subtarget features is defined in
// lib/Target/X86/X86.td. Here we recognize and map onto our internal
// state.
if (Feature == "+mmx")
SSELevel = std::max(SSELevel, MMX);
else if (Feature == "+sse")
SSELevel = std::max(SSELevel, SSE1);
else if (Feature == "+sse2")
SSELevel = std::max(SSELevel, SSE2);
else if (Feature == "+sse3")
SSELevel = std::max(SSELevel, SSE3);
else if (Feature == "+ssse3")
SSELevel = std::max(SSELevel, SSSE3);
else if (Feature == "+sse41")
SSELevel = std::max(SSELevel, SSE41);
else if (Feature == "+sse42")
SSELevel = std::max(SSELevel, SSE42);
else if (Feature == "+64bit" || Feature == "+slow-bt-mem")
// Ignore these features.
continue;
else
return i;
}
return -1;
}
/// X86TargetInfo::getTargetDefines - Return a set of the X86-specific #defines
/// that are not tied to a specific subtarget.
void X86TargetInfo::getTargetDefines(const LangOptions &Opts,
std::vector<char> &Defs) const {
// Target identification.
if (PointerWidth == 64) {
Define(Defs, "_LP64");
Define(Defs, "__LP64__");
Define(Defs, "__amd64__");
Define(Defs, "__amd64");
Define(Defs, "__x86_64");
Define(Defs, "__x86_64__");
Define(Defs, "__SSE3__");
} else {
Define(Defs, "__i386__");
Define(Defs, "__i386");
Define(Defs, "i386");
}
// Target properties.
Define(Defs, "__LITTLE_ENDIAN__");
// Subtarget options.
Define(Defs, "__nocona");
Define(Defs, "__nocona__");
Define(Defs, "__tune_nocona__");
Define(Defs, "__REGISTER_PREFIX__", "");
// Each case falls through to the previous one here.
switch (SSELevel) {
case SSE42:
Define(Defs, "__SSE4_2__");
case SSE41:
Define(Defs, "__SSE4_1__");
case SSSE3:
Define(Defs, "__SSSE3__");
case SSE3:
Define(Defs, "__SSE3__");
case SSE2:
Define(Defs, "__SSE2__");
Define(Defs, "__SSE2_MATH__"); // -mfp-math=sse always implied.
case SSE1:
Define(Defs, "__SSE__");
Define(Defs, "__SSE_MATH__"); // -mfp-math=sse always implied.
case MMX:
Define(Defs, "__MMX__");
case NoMMXSSE:
break;
}
}
bool
X86TargetInfo::validateAsmConstraint(const char *&Name,
TargetInfo::ConstraintInfo &info) const {
switch (*Name) {
default: return false;
case 'a': // eax.
case 'b': // ebx.
case 'c': // ecx.
case 'd': // edx.
case 'S': // esi.
case 'D': // edi.
case 'A': // edx:eax.
case 't': // top of floating point stack.
case 'u': // second from top of floating point stack.
case 'q': // Any register accessible as [r]l: a, b, c, and d.
case 'y': // Any MMX register.
case 'x': // Any SSE register.
case 'Q': // Any register accessible as [r]h: a, b, c, and d.
case 'e': // 32-bit signed integer constant for use with zero-extending
// x86_64 instructions.
case 'Z': // 32-bit unsigned integer constant for use with zero-extending
// x86_64 instructions.
case 'N': // unsigned 8-bit integer constant for use with in and out
// instructions.
info = (TargetInfo::ConstraintInfo)(info|TargetInfo::CI_AllowsRegister);
return true;
}
}
std::string
X86TargetInfo::convertConstraint(const char Constraint) const {
switch (Constraint) {
case 'a': return std::string("{ax}");
case 'b': return std::string("{bx}");
case 'c': return std::string("{cx}");
case 'd': return std::string("{dx}");
case 'S': return std::string("{si}");
case 'D': return std::string("{di}");
case 't': // top of floating point stack.
return std::string("{st}");
case 'u': // second from top of floating point stack.
return std::string("{st(1)}"); // second from top of floating point stack.
default:
return std::string(1, Constraint);
}
}
} // end anonymous namespace
namespace {
// X86-32 generic target
class X86_32TargetInfo : public X86TargetInfo {
public:
X86_32TargetInfo(const std::string& triple) : X86TargetInfo(triple) {
DoubleAlign = LongLongAlign = 32;
LongDoubleWidth = 96;
LongDoubleAlign = 32;
DescriptionString = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-"
"i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-"
"a0:0:64-f80:32:32";
}
virtual const char *getVAListDeclaration() const {
return "typedef char* __builtin_va_list;";
}
};
} // end anonymous namespace
namespace {
// x86-32 Darwin (OS X) target
class DarwinI386TargetInfo : public X86_32TargetInfo {
public:
DarwinI386TargetInfo(const std::string& triple) : X86_32TargetInfo(triple) {
LongDoubleWidth = 128;
LongDoubleAlign = 128;
PtrDiffType = SignedInt;
DescriptionString = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-"
"i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-"
"a0:0:64-f80:128:128";
}
virtual void getTargetDefines(const LangOptions &Opts,
std::vector<char> &Defines) const {
X86_32TargetInfo::getTargetDefines(Opts, Defines);
getDarwinDefines(Defines, getTargetTriple());
}
/// getDefaultLangOptions - Allow the target to specify default settings for
/// various language options. These may be overridden by command line
/// options.
virtual void getDefaultLangOptions(LangOptions &Opts) {
GetDarwinLanguageOptions(Opts, getTargetTriple());
}
};
} // end anonymous namespace
namespace {
// x86-32 FreeBSD target
class FreeBSDX86_32TargetInfo : public X86_32TargetInfo {
public:
FreeBSDX86_32TargetInfo(const std::string& triple) :
X86_32TargetInfo(triple) {
SizeType = UnsignedInt;
PtrDiffType = SignedInt;
}
virtual void getTargetDefines(const LangOptions &Opts,
std::vector<char> &Defines) const {
X86_32TargetInfo::getTargetDefines(Opts, Defines);
getFreeBSDDefines(Defines, 0, getTargetTriple());
}
};
} // end anonymous namespace
namespace {
// x86-32 DragonFly target
class DragonFlyX86_32TargetInfo : public X86_32TargetInfo {
public:
DragonFlyX86_32TargetInfo(const std::string& triple) :
X86_32TargetInfo(triple) {
SizeType = UnsignedInt;
PtrDiffType = SignedInt;
}
virtual void getTargetDefines(const LangOptions &Opts,
std::vector<char> &Defines) const {
X86_32TargetInfo::getTargetDefines(Opts, Defines);
getDragonFlyDefines(Defines);
}
};
} // end anonymous namespace
namespace {
// x86-32 Linux target
class LinuxX86_32TargetInfo : public X86_32TargetInfo {
public:
LinuxX86_32TargetInfo(const std::string& triple) : X86_32TargetInfo(triple) {
UserLabelPrefix = "";
SizeType = UnsignedInt;
PtrDiffType = SignedInt;
IntPtrType = SignedInt;
}
virtual void getTargetDefines(const LangOptions &Opts,
std::vector<char> &Defines) const {
X86_32TargetInfo::getTargetDefines(Opts, Defines);
getLinuxDefines(Defines);
}
};
} // end anonymous namespace
namespace {
// x86-32 Windows target
class WindowsX86_32TargetInfo : public X86_32TargetInfo {
public:
WindowsX86_32TargetInfo(const std::string& triple)
: X86_32TargetInfo(triple) {
// FIXME: Fix wchar_t.
// FIXME: We should probably enable -fms-extensions by default for
// this target.
SizeType = UnsignedInt;
PtrDiffType = SignedInt;
}
virtual void getTargetDefines(const LangOptions &Opts,
std::vector<char> &Defines) const {
X86_32TargetInfo::getTargetDefines(Opts, Defines);
// This list is based off of the the list of things MingW defines
Define(Defines, "__WIN32__");
Define(Defines, "__WIN32");
Define(Defines, "_WIN32");
Define(Defines, "WIN32");
Define(Defines, "__WINNT__");
Define(Defines, "__WINNT");
Define(Defines, "WINNT");
Define(Defines, "_X86_");
Define(Defines, "__MSVCRT__");
}
};
} // end anonymous namespace
namespace {
// x86-64 generic target
class X86_64TargetInfo : public X86TargetInfo {
public:
X86_64TargetInfo(const std::string &triple) : X86TargetInfo(triple) {
LongWidth = LongAlign = PointerWidth = PointerAlign = 64;
DoubleAlign = LongLongAlign = 64;
LongDoubleWidth = 128;
LongDoubleAlign = 128;
IntMaxType = SignedLong;
UIntMaxType = UnsignedLong;
DescriptionString = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-"
"i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-"
"a0:0:64-f80:128:128";
}
virtual const char *getVAListDeclaration() const {
return "typedef struct __va_list_tag {"
" unsigned gp_offset;"
" unsigned fp_offset;"
" void* overflow_arg_area;"
" void* reg_save_area;"
"} __builtin_va_list[1];";
}
};
} // end anonymous namespace
namespace {
// x86-64 FreeBSD target
class FreeBSDX86_64TargetInfo : public X86_64TargetInfo {
public:
FreeBSDX86_64TargetInfo(const std::string &triple)
: X86_64TargetInfo(triple) {}
virtual void getTargetDefines(const LangOptions &Opts,
std::vector<char> &Defines) const {
X86_64TargetInfo::getTargetDefines(Opts, Defines);
getFreeBSDDefines(Defines, 1, getTargetTriple());
}
};
} // end anonymous namespace
namespace {
// x86-64 Linux target
class LinuxX86_64TargetInfo : public X86_64TargetInfo {
public:
LinuxX86_64TargetInfo(const std::string& triple) : X86_64TargetInfo(triple) {
UserLabelPrefix = "";
}
virtual void getTargetDefines(const LangOptions &Opts,
std::vector<char> &Defines) const {
X86_64TargetInfo::getTargetDefines(Opts, Defines);
getLinuxDefines(Defines);
}
};
} // end anonymous namespace
namespace {
// x86-64 Darwin (OS X) target
class DarwinX86_64TargetInfo : public X86_64TargetInfo {
public:
DarwinX86_64TargetInfo(const std::string& triple) :
X86_64TargetInfo(triple) {}
virtual void getTargetDefines(const LangOptions &Opts,
std::vector<char> &Defines) const {
X86_64TargetInfo::getTargetDefines(Opts, Defines);
getDarwinDefines(Defines, getTargetTriple());
}
/// getDefaultLangOptions - Allow the target to specify default settings for
/// various language options. These may be overridden by command line
/// options.
virtual void getDefaultLangOptions(LangOptions &Opts) {
GetDarwinLanguageOptions(Opts, getTargetTriple());
}
};
} // end anonymous namespace.
namespace {
class ARMTargetInfo : public TargetInfo {
public:
ARMTargetInfo(const std::string& triple) : TargetInfo(triple) {
// FIXME: Are the defaults correct for ARM?
DescriptionString = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-"
"i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:64:64";
}
virtual void getTargetDefines(const LangOptions &Opts,
std::vector<char> &Defs) const {
// Target identification.
Define(Defs, "__arm");
Define(Defs, "__arm__");
// Target properties.
Define(Defs, "__LITTLE_ENDIAN__");
// Subtarget options. [hard coded to v6 for now]
Define(Defs, "__ARM_ARCH_6K__");
Define(Defs, "__ARMEL__");
Define(Defs, "__ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__", "20000");
}
virtual void getTargetBuiltins(const Builtin::Info *&Records,
unsigned &NumRecords) const {
// FIXME: Implement.
Records = 0;
NumRecords = 0;
}
virtual const char *getVAListDeclaration() const {
return "typedef char* __builtin_va_list;";
}
virtual const char *getTargetPrefix() const {
return "arm";
}
virtual void getGCCRegNames(const char * const *&Names,
unsigned &NumNames) const {
// FIXME: Implement.
Names = 0;
NumNames = 0;
}
virtual void getGCCRegAliases(const GCCRegAlias *&Aliases,
unsigned &NumAliases) const {
// FIXME: Implement.
Aliases = 0;
NumAliases = 0;
}
virtual bool validateAsmConstraint(const char *&Name,
TargetInfo::ConstraintInfo &info) const {
// FIXME: Check if this is complete
switch (*Name) {
default:
case 'l': // r0-r7
case 'h': // r8-r15
case 'w': // VFP Floating point register single precision
case 'P': // VFP Floating point register double precision
info = (TargetInfo::ConstraintInfo)(info|TargetInfo::CI_AllowsRegister);
return true;
}
return false;
}
virtual const char *getClobbers() const {
// FIXME: Is this really right?
return "";
}
};
} // end anonymous namespace.
namespace {
class DarwinARMTargetInfo : public ARMTargetInfo {
public:
DarwinARMTargetInfo(const std::string& triple) : ARMTargetInfo(triple) {}
virtual void getTargetDefines(const LangOptions &Opts,
std::vector<char> &Defines) const {
ARMTargetInfo::getTargetDefines(Opts, Defines);
getDarwinDefines(Defines, getTargetTriple());
}
};
} // end anonymous namespace.
namespace {
class SparcV8TargetInfo : public TargetInfo {
static const TargetInfo::GCCRegAlias GCCRegAliases[];
static const char * const GCCRegNames[];
public:
SparcV8TargetInfo(const std::string& triple) : TargetInfo(triple) {
// FIXME: Support Sparc quad-precision long double?
DescriptionString = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-"
"i64:64:64-f32:32:32-f64:64:64-v64:64:64";
}
virtual void getTargetDefines(const LangOptions &Opts,
std::vector<char> &Defines) const {
// FIXME: This is missing a lot of important defines; some of the
// missing stuff is likely to break system headers.
Define(Defines, "__sparc");
Define(Defines, "__sparc__");
Define(Defines, "__sparcv8");
}
virtual void getTargetBuiltins(const Builtin::Info *&Records,
unsigned &NumRecords) const {
// FIXME: Implement!
}
virtual const char *getVAListDeclaration() const {
return "typedef void* __builtin_va_list;";
}
virtual const char *getTargetPrefix() const {
return "sparc";
}
virtual void getGCCRegNames(const char * const *&Names,
unsigned &NumNames) const;
virtual void getGCCRegAliases(const GCCRegAlias *&Aliases,
unsigned &NumAliases) const;
virtual bool validateAsmConstraint(const char *&Name,
TargetInfo::ConstraintInfo &info) const {
// FIXME: Implement!
return false;
}
virtual const char *getClobbers() const {
// FIXME: Implement!
return "";
}
};
const char * const SparcV8TargetInfo::GCCRegNames[] = {
"r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
"r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15",
"r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23",
"r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31"
};
void SparcV8TargetInfo::getGCCRegNames(const char * const *&Names,
unsigned &NumNames) const {
Names = GCCRegNames;
NumNames = llvm::array_lengthof(GCCRegNames);
}
const TargetInfo::GCCRegAlias SparcV8TargetInfo::GCCRegAliases[] = {
{ { "g0" }, "r0" },
{ { "g1" }, "r1" },
{ { "g2" }, "r2" },
{ { "g3" }, "r3" },
{ { "g4" }, "r4" },
{ { "g5" }, "r5" },
{ { "g6" }, "r6" },
{ { "g7" }, "r7" },
{ { "o0" }, "r8" },
{ { "o1" }, "r9" },
{ { "o2" }, "r10" },
{ { "o3" }, "r11" },
{ { "o4" }, "r12" },
{ { "o5" }, "r13" },
{ { "o6", "sp" }, "r14" },
{ { "o7" }, "r15" },
{ { "l0" }, "r16" },
{ { "l1" }, "r17" },
{ { "l2" }, "r18" },
{ { "l3" }, "r19" },
{ { "l4" }, "r20" },
{ { "l5" }, "r21" },
{ { "l6" }, "r22" },
{ { "l7" }, "r23" },
{ { "i0" }, "r24" },
{ { "i1" }, "r25" },
{ { "i2" }, "r26" },
{ { "i3" }, "r27" },
{ { "i4" }, "r28" },
{ { "i5" }, "r29" },
{ { "i6", "fp" }, "r30" },
{ { "i7" }, "r31" },
};
void SparcV8TargetInfo::getGCCRegAliases(const GCCRegAlias *&Aliases,
unsigned &NumAliases) const {
Aliases = GCCRegAliases;
NumAliases = llvm::array_lengthof(GCCRegAliases);
}
} // end anonymous namespace.
namespace {
class SolarisSparcV8TargetInfo : public SparcV8TargetInfo {
public:
SolarisSparcV8TargetInfo(const std::string& triple) :
SparcV8TargetInfo(triple) {
SizeType = UnsignedInt;
PtrDiffType = SignedInt;
}
virtual void getTargetDefines(const LangOptions &Opts,
std::vector<char> &Defines) const {
SparcV8TargetInfo::getTargetDefines(Opts, Defines);
getSolarisDefines(Defines);
}
};
} // end anonymous namespace.
namespace {
class PIC16TargetInfo : public TargetInfo{
public:
PIC16TargetInfo(const std::string& triple) : TargetInfo(triple) {
IntWidth = 16;
LongWidth = LongLongWidth = 32;
PointerWidth = 16;
IntAlign = 8;
LongAlign = LongLongAlign = 8;
PointerAlign = 8;
SizeType = UnsignedInt;
IntMaxType = SignedLong;
UIntMaxType = UnsignedLong;
IntPtrType = SignedShort;
PtrDiffType = SignedInt;
DescriptionString = "e-p:16:8:8-i8:8:8-i16:8:8-i32:8:8";
}
virtual uint64_t getPointerWidthV(unsigned AddrSpace) const { return 16; }
virtual uint64_t getPointerAlignV(unsigned AddrSpace) const { return 8; }
virtual void getTargetDefines(const LangOptions &Opts,
std::vector<char> &Defines) const {
Define(Defines, "__pic16");
}
virtual void getTargetBuiltins(const Builtin::Info *&Records,
unsigned &NumRecords) const {}
virtual const char *getVAListDeclaration() const { return "";}
virtual const char *getClobbers() const {return "";}
virtual const char *getTargetPrefix() const {return "";}
virtual void getGCCRegNames(const char * const *&Names,
unsigned &NumNames) const {}
virtual bool validateAsmConstraint(const char *&Name,
TargetInfo::ConstraintInfo &info) const {
return true;
}
virtual void getGCCRegAliases(const GCCRegAlias *&Aliases,
unsigned &NumAliases) const {}
virtual bool useGlobalsForAutomaticVariables() const {return true;}
};
}
//===----------------------------------------------------------------------===//
// Driver code
//===----------------------------------------------------------------------===//
static inline bool IsX86(const std::string& TT) {
return (TT.size() >= 5 && TT[0] == 'i' && TT[2] == '8' && TT[3] == '6' &&
TT[4] == '-' && TT[1] - '3' < 6);
}
/// CreateTargetInfo - Return the target info object for the specified target
/// triple.
TargetInfo* TargetInfo::CreateTargetInfo(const std::string &T) {
// OS detection; this isn't really anywhere near complete.
// Additions and corrections are welcome.
bool isDarwin = T.find("-darwin") != std::string::npos;
bool isDragonFly = T.find("-dragonfly") != std::string::npos;
bool isFreeBSD = T.find("-freebsd") != std::string::npos;
bool isSolaris = T.find("-solaris") != std::string::npos;
bool isLinux = T.find("-linux") != std::string::npos;
bool isWindows = T.find("-windows") != std::string::npos ||
T.find("-win32") != std::string::npos ||
T.find("-mingw") != std::string::npos;
if (T.find("ppc-") == 0 || T.find("powerpc-") == 0) {
if (isDarwin)
return new DarwinPPCTargetInfo(T);
return new PPC32TargetInfo(T);
}
if (T.find("ppc64-") == 0 || T.find("powerpc64-") == 0) {
if (isDarwin)
return new DarwinPPC64TargetInfo(T);
return new PPC64TargetInfo(T);
}
if (T.find("armv6-") == 0 || T.find("arm-") == 0) {
if (isDarwin)
return new DarwinARMTargetInfo(T);
return new ARMTargetInfo(T);
}
if (T.find("sparc-") == 0) {
if (isSolaris)
return new SolarisSparcV8TargetInfo(T);
return new SparcV8TargetInfo(T);
}
if (T.find("x86_64-") == 0 || T.find("amd64-") == 0) {
if (isDarwin)
return new DarwinX86_64TargetInfo(T);
if (isLinux)
return new LinuxX86_64TargetInfo(T);
if (isFreeBSD)
return new FreeBSDX86_64TargetInfo(T);
return new X86_64TargetInfo(T);
}
if (T.find("pic16-") == 0)
return new PIC16TargetInfo(T);
if (IsX86(T)) {
if (isDarwin)
return new DarwinI386TargetInfo(T);
if (isLinux)
return new LinuxX86_32TargetInfo(T);
if (isDragonFly)
return new DragonFlyX86_32TargetInfo(T);
if (isFreeBSD)
return new FreeBSDX86_32TargetInfo(T);
if (isWindows)
return new WindowsX86_32TargetInfo(T);
return new X86_32TargetInfo(T);
}
return NULL;
}
Reference in New Issue View Git Blame Copy Permalink