#define LLVM_TARGET_TARGETLIBRARYINFO_H
#include "llvm/Pass.h"
+#include "llvm/ADT/DenseMap.h"
namespace llvm {
class Triple;
namespace LibFunc {
enum Func {
+ /// void operator delete[](void*);
+ ZdaPv,
+ /// void operator delete(void*);
+ ZdlPv,
+ /// void *new[](unsigned int);
+ Znaj,
+ /// void *new[](unsigned int, nothrow);
+ ZnajRKSt9nothrow_t,
+ /// void *new[](unsigned long);
+ Znam,
+ /// void *new[](unsigned long, nothrow);
+ ZnamRKSt9nothrow_t,
+ /// void *new(unsigned int);
+ Znwj,
+ /// void *new(unsigned int, nothrow);
+ ZnwjRKSt9nothrow_t,
+ /// void *new(unsigned long);
+ Znwm,
+ /// void *new(unsigned long, nothrow);
+ ZnwmRKSt9nothrow_t,
+ /// int __cxa_atexit(void (*f)(void *), void *p, void *d);
+ cxa_atexit,
+ /// void __cxa_guard_abort(guard_t *guard);
+ /// guard_t is int64_t in Itanium ABI or int32_t on ARM eabi.
+ cxa_guard_abort,
+ /// int __cxa_guard_acquire(guard_t *guard);
+ cxa_guard_acquire,
+ /// void __cxa_guard_release(guard_t *guard);
+ cxa_guard_release,
+ /// void *__memcpy_chk(void *s1, const void *s2, size_t n, size_t s1size);
+ memcpy_chk,
+ /// double acos(double x);
+ acos,
+ /// float acosf(float x);
+ acosf,
+ /// double acosh(double x);
+ acosh,
+ /// float acoshf(float x);
+ acoshf,
+ /// long double acoshl(long double x);
+ acoshl,
+ /// long double acosl(long double x);
+ acosl,
+ /// double asin(double x);
+ asin,
+ /// float asinf(float x);
+ asinf,
+ /// double asinh(double x);
+ asinh,
+ /// float asinhf(float x);
+ asinhf,
+ /// long double asinhl(long double x);
+ asinhl,
+ /// long double asinl(long double x);
+ asinl,
+ /// double atan(double x);
+ atan,
+ /// double atan2(double y, double x);
+ atan2,
+ /// float atan2f(float y, float x);
+ atan2f,
+ /// long double atan2l(long double y, long double x);
+ atan2l,
+ /// float atanf(float x);
+ atanf,
+ /// double atanh(double x);
+ atanh,
+ /// float atanhf(float x);
+ atanhf,
+ /// long double atanhl(long double x);
+ atanhl,
+ /// long double atanl(long double x);
+ atanl,
+ /// void *calloc(size_t count, size_t size);
+ calloc,
+ /// double cbrt(double x);
+ cbrt,
+ /// float cbrtf(float x);
+ cbrtf,
+ /// long double cbrtl(long double x);
+ cbrtl,
+ /// double ceil(double x);
+ ceil,
+ /// float ceilf(float x);
+ ceilf,
+ /// long double ceill(long double x);
+ ceill,
+ /// double copysign(double x, double y);
+ copysign,
+ /// float copysignf(float x, float y);
+ copysignf,
+ /// long double copysignl(long double x, long double y);
+ copysignl,
+ /// double cos(double x);
+ cos,
+ /// float cosf(float x);
+ cosf,
+ /// double cosh(double x);
+ cosh,
+ /// float coshf(float x);
+ coshf,
+ /// long double coshl(long double x);
+ coshl,
+ /// long double cosl(long double x);
+ cosl,
+ /// double exp(double x);
+ exp,
+ /// double exp10(double x);
+ exp10,
+ /// float exp10f(float x);
+ exp10f,
+ /// long double exp10l(long double x);
+ exp10l,
+ /// double exp2(double x);
+ exp2,
+ /// float exp2f(float x);
+ exp2f,
+ /// long double exp2l(long double x);
+ exp2l,
+ /// float expf(float x);
+ expf,
+ /// long double expl(long double x);
+ expl,
+ /// double expm1(double x);
+ expm1,
+ /// float expm1f(float x);
+ expm1f,
+ /// long double expm1l(long double x);
+ expm1l,
+ /// double fabs(double x);
+ fabs,
+ /// float fabsf(float x);
+ fabsf,
+ /// long double fabsl(long double x);
+ fabsl,
+ /// int fiprintf(FILE *stream, const char *format, ...);
+ fiprintf,
+ /// double floor(double x);
+ floor,
+ /// float floorf(float x);
+ floorf,
+ /// long double floorl(long double x);
+ floorl,
+ /// double fmod(double x, double y);
+ fmod,
+ /// float fmodf(float x, float y);
+ fmodf,
+ /// long double fmodl(long double x, long double y);
+ fmodl,
+ /// int fputc(int c, FILE *stream);
+ fputc,
+ /// int fputs(const char *s, FILE *stream);
+ fputs,
+ /// void free(void *ptr);
+ free,
+ /// size_t fwrite(const void *ptr, size_t size, size_t nitems,
+ /// FILE *stream);
+ fwrite,
+ /// int iprintf(const char *format, ...);
+ iprintf,
+ /// double log(double x);
+ log,
+ /// double log10(double x);
+ log10,
+ /// float log10f(float x);
+ log10f,
+ /// long double log10l(long double x);
+ log10l,
+ /// double log1p(double x);
+ log1p,
+ /// float log1pf(float x);
+ log1pf,
+ /// long double log1pl(long double x);
+ log1pl,
+ /// double log2(double x);
+ log2,
+ /// float log2f(float x);
+ log2f,
+ /// double long double log2l(long double x);
+ log2l,
+ /// double logb(double x);
+ logb,
+ /// float logbf(float x);
+ logbf,
+ /// long double logbl(long double x);
+ logbl,
+ /// float logf(float x);
+ logf,
+ /// long double logl(long double x);
+ logl,
+ /// void *malloc(size_t size);
+ malloc,
+ /// void *memchr(const void *s, int c, size_t n);
+ memchr,
+ /// int memcmp(const void *s1, const void *s2, size_t n);
+ memcmp,
+ /// void *memcpy(void *s1, const void *s2, size_t n);
+ memcpy,
+ /// void *memmove(void *s1, const void *s2, size_t n);
+ memmove,
/// void *memset(void *b, int c, size_t len);
memset,
-
- // void *memcpy(void *s1, const void *s2, size_t n);
- memcpy,
-
/// void memset_pattern16(void *b, const void *pattern16, size_t len);
memset_pattern16,
-
- /// int iprintf(const char *format, ...);
- iprintf,
-
+ /// double nearbyint(double x);
+ nearbyint,
+ /// float nearbyintf(float x);
+ nearbyintf,
+ /// long double nearbyintl(long double x);
+ nearbyintl,
+ /// int posix_memalign(void **memptr, size_t alignment, size_t size);
+ posix_memalign,
+ /// double pow(double x, double y);
+ pow,
+ /// float powf(float x, float y);
+ powf,
+ /// long double powl(long double x, long double y);
+ powl,
+ /// int putchar(int c);
+ putchar,
+ /// int puts(const char *s);
+ puts,
+ /// void *realloc(void *ptr, size_t size);
+ realloc,
+ /// void *reallocf(void *ptr, size_t size);
+ reallocf,
+ /// double rint(double x);
+ rint,
+ /// float rintf(float x);
+ rintf,
+ /// long double rintl(long double x);
+ rintl,
+ /// double round(double x);
+ round,
+ /// float roundf(float x);
+ roundf,
+ /// long double roundl(long double x);
+ roundl,
+ /// double sin(double x);
+ sin,
+ /// float sinf(float x);
+ sinf,
+ /// double sinh(double x);
+ sinh,
+ /// float sinhf(float x);
+ sinhf,
+ /// long double sinhl(long double x);
+ sinhl,
+ /// long double sinl(long double x);
+ sinl,
/// int siprintf(char *str, const char *format, ...);
siprintf,
-
+ /// double sqrt(double x);
+ sqrt,
+ /// float sqrtf(float x);
+ sqrtf,
+ /// long double sqrtl(long double x);
+ sqrtl,
+ /// char *strcat(char *s1, const char *s2);
+ strcat,
+ /// char *strchr(const char *s, int c);
+ strchr,
+ /// char *strcpy(char *s1, const char *s2);
+ strcpy,
+ /// char *strdup(const char *s1);
+ strdup,
+ /// size_t strlen(const char *s);
+ strlen,
+ /// char *strncat(char *s1, const char *s2, size_t n);
+ strncat,
+ /// int strncmp(const char *s1, const char *s2, size_t n);
+ strncmp,
+ /// char *strncpy(char *s1, const char *s2, size_t n);
+ strncpy,
+ /// char *strndup(const char *s1, size_t n);
+ strndup,
+ /// size_t strnlen(const char *s, size_t maxlen);
+ strnlen,
+ /// double tan(double x);
+ tan,
+ /// float tanf(float x);
+ tanf,
+ /// double tanh(double x);
+ tanh,
+ /// float tanhf(float x);
+ tanhf,
+ /// long double tanhl(long double x);
+ tanhl,
+ /// long double tanl(long double x);
+ tanl,
+ /// double trunc(double x);
+ trunc,
+ /// float truncf(float x);
+ truncf,
+ /// long double truncl(long double x);
+ truncl,
+ /// void *valloc(size_t size);
+ valloc,
+
NumLibFuncs
};
}
/// library functions are available for the current target, and allows a
/// frontend to disable optimizations through -fno-builtin etc.
class TargetLibraryInfo : public ImmutablePass {
- unsigned char AvailableArray[(LibFunc::NumLibFuncs+7)/8];
+ virtual void anchor();
+ unsigned char AvailableArray[(LibFunc::NumLibFuncs+3)/4];
+ llvm::DenseMap<unsigned, std::string> CustomNames;
+ static const char* StandardNames[LibFunc::NumLibFuncs];
+
+ enum AvailabilityState {
+ StandardName = 3, // (memset to all ones)
+ CustomName = 1,
+ Unavailable = 0 // (memset to all zeros)
+ };
+ void setState(LibFunc::Func F, AvailabilityState State) {
+ AvailableArray[F/4] &= ~(3 << 2*(F&3));
+ AvailableArray[F/4] |= State << 2*(F&3);
+ }
+ AvailabilityState getState(LibFunc::Func F) const {
+ return static_cast<AvailabilityState>((AvailableArray[F/4] >> 2*(F&3)) & 3);
+ }
+
public:
static char ID;
TargetLibraryInfo();
TargetLibraryInfo(const Triple &T);
+ explicit TargetLibraryInfo(const TargetLibraryInfo &TLI);
+ /// getLibFunc - Search for a particular function name. If it is one of the
+ /// known library functions, return true and set F to the corresponding value.
+ bool getLibFunc(StringRef funcName, LibFunc::Func &F) const;
+
/// has - This function is used by optimizations that want to match on or form
/// a given library function.
bool has(LibFunc::Func F) const {
- return (AvailableArray[F/8] & (1 << (F&7))) != 0;
+ return getState(F) != Unavailable;
+ }
+
+ /// hasOptimizedCodeGen - Return true if the function is both available as
+ /// a builtin and a candidate for optimized code generation.
+ bool hasOptimizedCodeGen(LibFunc::Func F) const {
+ if (getState(F) == Unavailable)
+ return false;
+ switch (F) {
+ default: break;
+ case LibFunc::copysign: case LibFunc::copysignf: case LibFunc::copysignl:
+ case LibFunc::fabs: case LibFunc::fabsf: case LibFunc::fabsl:
+ case LibFunc::sin: case LibFunc::sinf: case LibFunc::sinl:
+ case LibFunc::cos: case LibFunc::cosf: case LibFunc::cosl:
+ case LibFunc::sqrt: case LibFunc::sqrtf: case LibFunc::sqrtl:
+ case LibFunc::floor: case LibFunc::floorf: case LibFunc::floorl:
+ case LibFunc::nearbyint: case LibFunc::nearbyintf: case LibFunc::nearbyintl:
+ case LibFunc::ceil: case LibFunc::ceilf: case LibFunc::ceill:
+ case LibFunc::rint: case LibFunc::rintf: case LibFunc::rintl:
+ case LibFunc::trunc: case LibFunc::truncf: case LibFunc::truncl:
+ case LibFunc::log2: case LibFunc::log2f: case LibFunc::log2l:
+ case LibFunc::exp2: case LibFunc::exp2f: case LibFunc::exp2l:
+ case LibFunc::memcmp:
+ return true;
+ }
+ return false;
+ }
+
+ StringRef getName(LibFunc::Func F) const {
+ AvailabilityState State = getState(F);
+ if (State == Unavailable)
+ return StringRef();
+ if (State == StandardName)
+ return StandardNames[F];
+ assert(State == CustomName);
+ return CustomNames.find(F)->second;
}
/// setUnavailable - this can be used by whatever sets up TargetLibraryInfo to
/// ban use of specific library functions.
void setUnavailable(LibFunc::Func F) {
- AvailableArray[F/8] &= ~(1 << (F&7));
+ setState(F, Unavailable);
}
void setAvailable(LibFunc::Func F) {
- AvailableArray[F/8] |= 1 << (F&7);
+ setState(F, StandardName);
}
-
+
+ void setAvailableWithName(LibFunc::Func F, StringRef Name) {
+ if (StandardNames[F] != Name) {
+ setState(F, CustomName);
+ CustomNames[F] = Name;
+ assert(CustomNames.find(F) != CustomNames.end());
+ } else {
+ setState(F, StandardName);
+ }
+ }
+
/// disableAllFunctions - This disables all builtins, which is used for
/// options like -fno-builtin.
void disableAllFunctions();