зеркало из https://github.com/microsoft/clang-1.git
eliminate the TargetInfoImpl stuff, simplifying the target implementations.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@48049 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
Родитель
3901611839
Коммит
0eaed12e63
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@ -15,32 +15,29 @@
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#include "clang/Basic/Diagnostic.h"
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#include "clang/AST/Builtins.h"
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#include "llvm/ADT/APFloat.h"
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#include "llvm/ADT/StringMap.h"
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#include "llvm/ADT/STLExtras.h"
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#include <set>
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using namespace clang;
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void TargetInfoImpl::ANCHOR() {} // out-of-line virtual method for class.
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// Out of line virtual dtor for TargetInfo.
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TargetInfo::~TargetInfo() {}
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//===----------------------------------------------------------------------===//
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// FIXME: These are temporary hacks, they should revector into the
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// TargetInfoImpl.
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// FIXME: These are temporary hacks.
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void TargetInfo::getFloatInfo(uint64_t &Size, unsigned &Align,
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const llvm::fltSemantics *&Format) {
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const llvm::fltSemantics *&Format) const {
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Align = 32; // FIXME: implement correctly.
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Size = 32;
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Format = &llvm::APFloat::IEEEsingle;
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}
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void TargetInfo::getDoubleInfo(uint64_t &Size, unsigned &Align,
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const llvm::fltSemantics *&Format) {
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const llvm::fltSemantics *&Format) const {
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Size = 64; // FIXME: implement correctly.
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Align = 32;
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Format = &llvm::APFloat::IEEEdouble;
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}
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void TargetInfo::getLongDoubleInfo(uint64_t &Size, unsigned &Align,
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const llvm::fltSemantics *&Format) {
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const llvm::fltSemantics *&Format) const {
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Size = Align = 64; // FIXME: implement correctly.
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Format = &llvm::APFloat::IEEEdouble;
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//Size = 80; Align = 32; // FIXME: implement correctly.
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@ -50,47 +47,6 @@ void TargetInfo::getLongDoubleInfo(uint64_t &Size, unsigned &Align,
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//===----------------------------------------------------------------------===//
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TargetInfo::TargetInfo(const TargetInfoImpl *TII) {
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Target = TII;
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// Initialize Cache values to uncomputed.
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TII->getWCharInfo(WCharWidth, WCharAlign);
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}
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TargetInfo::~TargetInfo() {
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delete Target;
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}
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const char* TargetInfo::getTargetTriple() const {
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return Target->getTargetTriple();
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}
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const char *TargetInfo::getTargetPrefix() const {
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return Target->getTargetPrefix();
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}
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/// getTargetDefines - Appends the target-specific #define values for this
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/// target set to the specified buffer.
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void TargetInfo::getTargetDefines(std::vector<char> &Buffer) {
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Target->getTargetDefines(Buffer);
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}
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/// getTargetBuiltins - Return information about target-specific builtins for
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/// the current primary target, and info about which builtins are non-portable
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/// across the current set of primary and secondary targets.
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void TargetInfo::getTargetBuiltins(const Builtin::Info *&Records,
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unsigned &NumRecords) const {
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// Get info about what actual builtins we will expose.
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Target->getTargetBuiltins(Records, NumRecords);
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}
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/// getVAListDeclaration - Return the declaration to use for
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/// __builtin_va_list, which is target-specific.
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const char *TargetInfo::getVAListDeclaration() const {
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return Target->getVAListDeclaration();
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}
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static void removeGCCRegisterPrefix(const char *&Name) {
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if (Name[0] == '%' || Name[0] == '#')
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@ -112,7 +68,7 @@ bool TargetInfo::isValidGCCRegisterName(const char *Name) const {
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strcmp(Name, "cc") == 0)
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return true;
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Target->getGCCRegNames(Names, NumNames);
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getGCCRegNames(Names, NumNames);
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// If we have a number it maps to an entry in the register name array.
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if (isdigit(Name[0])) {
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@ -129,10 +85,10 @@ bool TargetInfo::isValidGCCRegisterName(const char *Name) const {
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}
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// Now check aliases.
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const TargetInfoImpl::GCCRegAlias *Aliases;
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const GCCRegAlias *Aliases;
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unsigned NumAliases;
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Target->getGCCRegAliases(Aliases, NumAliases);
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getGCCRegAliases(Aliases, NumAliases);
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for (unsigned i = 0; i < NumAliases; i++) {
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for (unsigned j = 0 ; j < llvm::array_lengthof(Aliases[i].Aliases); j++) {
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if (!Aliases[i].Aliases[j])
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@ -145,8 +101,7 @@ bool TargetInfo::isValidGCCRegisterName(const char *Name) const {
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return false;
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}
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const char *TargetInfo::getNormalizedGCCRegisterName(const char *Name) const
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{
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const char *TargetInfo::getNormalizedGCCRegisterName(const char *Name) const {
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assert(isValidGCCRegisterName(Name) && "Invalid register passed in");
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removeGCCRegisterPrefix(Name);
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@ -154,7 +109,7 @@ const char *TargetInfo::getNormalizedGCCRegisterName(const char *Name) const
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const char * const *Names;
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unsigned NumNames;
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Target->getGCCRegNames(Names, NumNames);
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getGCCRegNames(Names, NumNames);
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// First, check if we have a number.
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if (isdigit(Name[0])) {
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@ -168,10 +123,10 @@ const char *TargetInfo::getNormalizedGCCRegisterName(const char *Name) const
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}
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// Now check aliases.
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const TargetInfoImpl::GCCRegAlias *Aliases;
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const GCCRegAlias *Aliases;
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unsigned NumAliases;
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Target->getGCCRegAliases(Aliases, NumAliases);
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getGCCRegAliases(Aliases, NumAliases);
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for (unsigned i = 0; i < NumAliases; i++) {
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for (unsigned j = 0 ; j < llvm::array_lengthof(Aliases[i].Aliases); j++) {
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if (!Aliases[i].Aliases[j])
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@ -200,7 +155,7 @@ bool TargetInfo::validateOutputConstraint(const char *Name,
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while (*Name) {
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switch (*Name) {
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default:
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if (!Target->validateAsmConstraint(*Name, info)) {
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if (!validateAsmConstraint(*Name, info)) {
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// FIXME: This assert is in place temporarily
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// so we can add more constraints as we hit it.
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// Eventually, an unknown constraint should just be treated as 'g'.
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@ -227,8 +182,7 @@ bool TargetInfo::validateOutputConstraint(const char *Name,
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bool TargetInfo::validateInputConstraint(const char *Name,
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unsigned NumOutputs,
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ConstraintInfo &info) const
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{
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ConstraintInfo &info) const {
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while (*Name) {
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switch (*Name) {
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default:
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@ -239,7 +193,7 @@ bool TargetInfo::validateInputConstraint(const char *Name,
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// Check if matching constraint is out of bounds.
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if (i >= NumOutputs)
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return false;
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} else if (!Target->validateAsmConstraint(*Name, info)) {
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} else if (!validateAsmConstraint(*Name, info)) {
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// FIXME: This assert is in place temporarily
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// so we can add more constraints as we hit it.
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// Eventually, an unknown constraint should just be treated as 'g'.
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@ -267,13 +221,3 @@ bool TargetInfo::validateInputConstraint(const char *Name,
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return true;
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}
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std::string TargetInfo::convertConstraint(const char Constraint) const {
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return Target->convertConstraint(Constraint);
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}
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const char *TargetInfo::getClobbers() const {
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return Target->getClobbers();
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}
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@ -36,9 +36,9 @@ static void Define(std::vector<char> &Buf, const char *Macro,
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namespace {
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class DarwinTargetInfo : public TargetInfoImpl {
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class DarwinTargetInfo : public TargetInfo {
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public:
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DarwinTargetInfo(const std::string& triple) : TargetInfoImpl(triple) {}
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DarwinTargetInfo(const std::string& triple) : TargetInfo(triple) {}
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virtual void getTargetDefines(std::vector<char> &Defs) const {
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// FIXME: we need a real target configuration system. For now, only define
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@ -67,9 +67,9 @@ public:
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};
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class SolarisTargetInfo : public TargetInfoImpl {
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class SolarisTargetInfo : public TargetInfo {
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public:
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SolarisTargetInfo(const std::string& triple) : TargetInfoImpl(triple) {}
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SolarisTargetInfo(const std::string& triple) : TargetInfo(triple) {}
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virtual void getTargetDefines(std::vector<char> &Defs) const {
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// FIXME: we need a real target configuration system. For now, only define
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@ -362,7 +362,7 @@ namespace PPC {
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NumNames = llvm::array_lengthof(GCCRegNames);
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}
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static const TargetInfoImpl::GCCRegAlias GCCRegAliases[] = {
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static const TargetInfo::GCCRegAlias GCCRegAliases[] = {
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// While some of these aliases do map to different registers
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// they still share the same register name.
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{ { "cc", "cr0", "fr0", "r0", "v0"}, "0" },
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@ -399,7 +399,7 @@ namespace PPC {
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{ { "fr31", "r31", "v31"}, "31" },
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};
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static void getGCCRegAliases(const TargetInfoImpl::GCCRegAlias *&Aliases,
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static void getGCCRegAliases(const TargetInfo::GCCRegAlias *&Aliases,
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unsigned &NumAliases) {
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Aliases = GCCRegAliases;
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NumAliases = llvm::array_lengthof(GCCRegAliases);
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@ -456,7 +456,7 @@ namespace X86 {
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NumNames = llvm::array_lengthof(GCCRegNames);
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}
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static const TargetInfoImpl::GCCRegAlias GCCRegAliases[] = {
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static const TargetInfo::GCCRegAlias GCCRegAliases[] = {
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{ { "al", "ah", "eax", "rax" }, "ax" },
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{ { "bl", "bh", "ebx", "rbx" }, "bx" },
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{ { "cl", "ch", "ecx", "rcx" }, "cx" },
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@ -466,7 +466,7 @@ namespace X86 {
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{ { "ebp", "rbp" }, "bp" },
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};
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static void getGCCRegAliases(const TargetInfoImpl::GCCRegAlias *&Aliases,
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static void getGCCRegAliases(const TargetInfo::GCCRegAlias *&Aliases,
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unsigned &NumAliases) {
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Aliases = GCCRegAliases;
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NumAliases = llvm::array_lengthof(GCCRegAliases);
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@ -736,19 +736,19 @@ static inline bool IsX86(const std::string& TT) {
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/// triple.
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TargetInfo* TargetInfo::CreateTargetInfo(const std::string &T) {
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if (T.find("ppc-") == 0 || T.find("powerpc-") == 0)
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return new TargetInfo(new DarwinPPCTargetInfo(T));
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return new DarwinPPCTargetInfo(T);
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if (T.find("ppc64-") == 0 || T.find("powerpc64-") == 0)
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return new TargetInfo(new DarwinPPC64TargetInfo(T));
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return new DarwinPPC64TargetInfo(T);
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if (T.find("sparc-") == 0)
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return new TargetInfo(new SolarisSparcV8TargetInfo(T)); // ugly hack
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return new SolarisSparcV8TargetInfo(T); // ugly hack
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if (T.find("x86_64-") == 0)
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return new TargetInfo(new DarwinX86_64TargetInfo(T));
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return new DarwinX86_64TargetInfo(T);
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if (IsX86(T))
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return new TargetInfo(new DarwinI386TargetInfo(T));
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return new DarwinI386TargetInfo(T);
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return NULL;
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}
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@ -22,7 +22,6 @@ namespace llvm { struct fltSemantics; }
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namespace clang {
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class TargetInfoImpl;
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class Diagnostic;
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class SourceManager;
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@ -31,105 +30,105 @@ namespace Builtin { struct Info; }
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/// TargetInfo - This class exposes information about the current target.
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///
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class TargetInfo {
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/// Primary - This tracks the primary target in the target set.
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///
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const TargetInfoImpl *Target;
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std::string Triple;
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protected:
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/// These are all caches for target values.
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unsigned WCharWidth, WCharAlign;
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//==----------------------------------------------------------------==/
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// TargetInfo Construction.
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//==----------------------------------------------------------------==/
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TargetInfo(const TargetInfoImpl *TII);
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TargetInfo(const std::string &T) : Triple(T) {
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// Set defaults.
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WCharWidth = WCharAlign = 32;
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}
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public:
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/// CreateTargetInfo - Return the target info object for the specified target
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/// triple.
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static TargetInfo* CreateTargetInfo(const std::string &Triple);
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~TargetInfo();
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virtual ~TargetInfo();
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///===---- Target property query methods --------------------------------===//
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/// getTargetDefines - Appends the target-specific #define values for this
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/// target set to the specified buffer.
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void getTargetDefines(std::vector<char> &DefineBuffer);
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virtual void getTargetDefines(std::vector<char> &DefineBuffer) const = 0;
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/// isCharSigned - Return true if 'char' is 'signed char' or false if it is
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/// treated as 'unsigned char'. This is implementation defined according to
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/// C99 6.2.5p15. In our implementation, this is target-specific.
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bool isCharSigned() {
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bool isCharSigned() const {
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// FIXME: implement correctly.
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return true;
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}
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/// getPointerWidth - Return the width of pointers on this target, we
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/// currently assume one pointer type.
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void getPointerInfo(uint64_t &Size, unsigned &Align) {
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void getPointerInfo(uint64_t &Size, unsigned &Align) const {
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Size = 32; // FIXME: implement correctly.
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Align = 32;
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}
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/// getBoolInfo - Return the size of '_Bool' and C++ 'bool' for this target,
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/// in bits.
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void getBoolInfo(uint64_t &Size, unsigned &Align) {
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void getBoolInfo(uint64_t &Size, unsigned &Align) const {
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Size = Align = 8; // FIXME: implement correctly: wrong for ppc32.
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}
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/// getCharInfo - Return the size of 'char', 'signed char' and
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/// 'unsigned char' for this target, in bits.
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void getCharInfo(uint64_t &Size, unsigned &Align) {
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void getCharInfo(uint64_t &Size, unsigned &Align) const {
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Size = Align = 8; // FIXME: implement correctly.
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}
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/// getShortInfo - Return the size of 'signed short' and 'unsigned short' for
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/// this target, in bits.
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void getShortInfo(uint64_t &Size, unsigned &Align) {
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void getShortInfo(uint64_t &Size, unsigned &Align) const {
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Size = Align = 16; // FIXME: implement correctly.
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}
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/// getIntInfo - Return the size of 'signed int' and 'unsigned int' for this
|
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/// target, in bits.
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void getIntInfo(uint64_t &Size, unsigned &Align) {
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void getIntInfo(uint64_t &Size, unsigned &Align) const {
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Size = Align = 32; // FIXME: implement correctly.
|
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}
|
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/// getLongInfo - Return the size of 'signed long' and 'unsigned long' for
|
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/// this target, in bits.
|
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void getLongInfo(uint64_t &Size, unsigned &Align) {
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void getLongInfo(uint64_t &Size, unsigned &Align) const {
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Size = Align = 32; // FIXME: implement correctly: wrong for ppc64/x86-64
|
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}
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/// getLongLongInfo - Return the size of 'signed long long' and
|
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/// 'unsigned long long' for this target, in bits.
|
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void getLongLongInfo(uint64_t &Size, unsigned &Align) {
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void getLongLongInfo(uint64_t &Size, unsigned &Align) const {
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Size = Align = 64; // FIXME: implement correctly.
|
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}
|
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/// getFloatInfo - Characterize 'float' for this target.
|
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void getFloatInfo(uint64_t &Size, unsigned &Align,
|
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const llvm::fltSemantics *&Format);
|
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const llvm::fltSemantics *&Format) const;
|
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|
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/// getDoubleInfo - Characterize 'double' for this target.
|
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void getDoubleInfo(uint64_t &Size, unsigned &Align,
|
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const llvm::fltSemantics *&Format);
|
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const llvm::fltSemantics *&Format) const;
|
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|
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/// getLongDoubleInfo - Characterize 'long double' for this target.
|
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void getLongDoubleInfo(uint64_t &Size, unsigned &Align,
|
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const llvm::fltSemantics *&Format);
|
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const llvm::fltSemantics *&Format) const;
|
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|
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/// getWCharInfo - Return the size of wchar_t in bits.
|
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///
|
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void getWCharInfo(uint64_t &Size, unsigned &Align) {
|
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void getWCharInfo(uint64_t &Size, unsigned &Align) const {
|
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Size = WCharWidth;
|
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Align = WCharAlign;
|
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}
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/// getIntMaxTWidth - Return the size of intmax_t and uintmax_t for this
|
||||
/// target, in bits.
|
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unsigned getIntMaxTWidth() {
|
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unsigned getIntMaxTWidth() const {
|
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// FIXME: implement correctly.
|
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return 64;
|
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}
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@ -137,12 +136,12 @@ public:
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/// getTargetBuiltins - Return information about target-specific builtins for
|
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/// the current primary target, and info about which builtins are non-portable
|
||||
/// across the current set of primary and secondary targets.
|
||||
void getTargetBuiltins(const Builtin::Info *&Records,
|
||||
unsigned &NumRecords) const;
|
||||
virtual void getTargetBuiltins(const Builtin::Info *&Records,
|
||||
unsigned &NumRecords) const = 0;
|
||||
|
||||
/// getVAListDeclaration - Return the declaration to use for
|
||||
/// __builtin_va_list, which is target-specific.
|
||||
const char *getVAListDeclaration() const;
|
||||
virtual const char *getVAListDeclaration() const = 0;
|
||||
|
||||
/// isValidGCCRegisterName - Returns whether the passed in string
|
||||
/// is a valid register name according to GCC. This is used by Sema for
|
||||
|
|
@ -167,20 +166,22 @@ public:
|
|||
bool validateInputConstraint (const char *Name, unsigned NumOutputs,
|
||||
ConstraintInfo &info) const;
|
||||
|
||||
std::string convertConstraint(const char Constraint) const;
|
||||
virtual std::string convertConstraint(const char Constraint) const {
|
||||
return std::string(1, Constraint);
|
||||
}
|
||||
|
||||
// Returns a string of target-specific clobbers, in LLVM format.
|
||||
const char *getClobbers() const;
|
||||
virtual const char *getClobbers() const = 0;
|
||||
|
||||
///===---- Some helper methods ------------------------------------------===//
|
||||
|
||||
unsigned getBoolWidth() {
|
||||
unsigned getBoolWidth() const {
|
||||
uint64_t Size; unsigned Align;
|
||||
getBoolInfo(Size, Align);
|
||||
return static_cast<unsigned>(Size);
|
||||
}
|
||||
|
||||
unsigned getCharWidth(bool isWide = false) {
|
||||
unsigned getCharWidth(bool isWide = false) const {
|
||||
uint64_t Size; unsigned Align;
|
||||
if (isWide)
|
||||
getWCharInfo(Size, Align);
|
||||
|
|
@ -189,25 +190,25 @@ public:
|
|||
return static_cast<unsigned>(Size);
|
||||
}
|
||||
|
||||
unsigned getWCharWidth() {
|
||||
unsigned getWCharWidth() const {
|
||||
uint64_t Size; unsigned Align;
|
||||
getWCharInfo(Size, Align);
|
||||
return static_cast<unsigned>(Size);
|
||||
}
|
||||
|
||||
unsigned getIntWidth() {
|
||||
unsigned getIntWidth() const {
|
||||
uint64_t Size; unsigned Align;
|
||||
getIntInfo(Size, Align);
|
||||
return static_cast<unsigned>(Size);
|
||||
}
|
||||
|
||||
unsigned getLongWidth() {
|
||||
unsigned getLongWidth() const {
|
||||
uint64_t Size; unsigned Align;
|
||||
getLongInfo(Size, Align);
|
||||
return static_cast<unsigned>(Size);
|
||||
}
|
||||
|
||||
unsigned getLongLongWidth() {
|
||||
unsigned getLongLongWidth() const {
|
||||
uint64_t Size; unsigned Align;
|
||||
getLongLongInfo(Size, Align);
|
||||
return static_cast<unsigned>(Size);
|
||||
|
|
@ -215,10 +216,12 @@ public:
|
|||
|
||||
/// getTargetPrefix - Return the target prefix used for identifying
|
||||
/// llvm intrinsics.
|
||||
const char *getTargetPrefix() const;
|
||||
virtual const char *getTargetPrefix() const = 0;
|
||||
|
||||
/// getTargetTriple - Return the target triple of the primary target.
|
||||
const char *getTargetTriple() const;
|
||||
virtual const char *getTargetTriple() const {
|
||||
return Triple.c_str();
|
||||
}
|
||||
|
||||
const char *getTargetDescription() const {
|
||||
// FIXME !
|
||||
|
|
@ -226,76 +229,19 @@ public:
|
|||
return "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";
|
||||
}
|
||||
};
|
||||
|
||||
|
||||
|
||||
|
||||
/// TargetInfoImpl - This class is implemented for specific targets and is used
|
||||
/// by the TargetInfo class. Target implementations should initialize instance
|
||||
/// variables and implement various virtual methods if the default values are
|
||||
/// not appropriate for the target.
|
||||
class TargetInfoImpl {
|
||||
protected:
|
||||
unsigned WCharWidth; /// sizeof(wchar_t) in bits. Default value is 32.
|
||||
unsigned WCharAlign; /// alignof(wchar_t) in bits. Default value is 32.
|
||||
std::string Triple;
|
||||
public:
|
||||
TargetInfoImpl(const std::string& triple)
|
||||
: WCharWidth(32), WCharAlign(32), Triple(triple) {}
|
||||
|
||||
virtual ~TargetInfoImpl() {}
|
||||
|
||||
/// getTargetTriple - Return the string representing the target triple this
|
||||
/// TargetInfoImpl object was created from.
|
||||
const char* getTargetTriple() const { return Triple.c_str(); }
|
||||
|
||||
virtual const char *getTargetPrefix() const = 0;
|
||||
|
||||
/// getTargetDefines - Return a list of the target-specific #define values set
|
||||
/// when compiling to this target. Each string should be of the form
|
||||
/// "#define X Y\n".
|
||||
virtual void getTargetDefines(std::vector<char> &Defines) const = 0;
|
||||
|
||||
/// getVAListDeclaration - Return the declaration to use for
|
||||
/// __builtin_va_list, which is target-specific.
|
||||
virtual const char *getVAListDeclaration() const = 0;
|
||||
|
||||
/// getWCharWidth - Return the size of wchar_t in bits.
|
||||
///
|
||||
void getWCharInfo(unsigned &Size, unsigned &Align) const {
|
||||
Size = WCharWidth;
|
||||
Align = WCharAlign;
|
||||
}
|
||||
|
||||
/// getTargetBuiltins - Return information about target-specific builtins for
|
||||
/// the target.
|
||||
virtual void getTargetBuiltins(const Builtin::Info *&Records,
|
||||
unsigned &NumRecords) const {
|
||||
Records = 0;
|
||||
NumRecords = 0;
|
||||
}
|
||||
|
||||
virtual void getGCCRegNames(const char * const *&Names,
|
||||
unsigned &NumNames) const = 0;
|
||||
|
||||
struct GCCRegAlias {
|
||||
const char * const Aliases[5];
|
||||
const char * const Register;
|
||||
};
|
||||
|
||||
protected:
|
||||
virtual void getGCCRegNames(const char * const *&Names,
|
||||
unsigned &NumNames) const = 0;
|
||||
virtual void getGCCRegAliases(const GCCRegAlias *&Aliases,
|
||||
unsigned &NumAliases) const = 0;
|
||||
|
||||
virtual bool validateAsmConstraint(char c,
|
||||
TargetInfo::ConstraintInfo &info) const= 0;
|
||||
|
||||
virtual std::string convertConstraint(const char Constraint) const {
|
||||
return std::string(1, Constraint);
|
||||
}
|
||||
|
||||
virtual const char *getClobbers() const = 0;
|
||||
private:
|
||||
virtual void ANCHOR(); // out-of-line virtual method for class.
|
||||
};
|
||||
|
||||
} // end namespace clang
|
||||
|
|
|
|||
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