From d1e672e0234b99dbff78baed0e47d033cf963abe Mon Sep 17 00:00:00 2001 From: Bob Wilson Date: Fri, 3 Aug 2012 04:06:22 +0000 Subject: [PATCH] Add new getLibFunc method to TargetLibraryInfo. This just provides a way to look up a LibFunc::Func enum value for a function name. Alphabetize the enums and function names so we can use a binary search. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161231 91177308-0d34-0410-b5e6-96231b3b80d8 --- include/llvm/Target/TargetLibraryInfo.h | 142 ++++++++++++------------ lib/Target/TargetLibraryInfo.cpp | 95 +++++++++------- 2 files changed, 130 insertions(+), 107 deletions(-) diff --git a/include/llvm/Target/TargetLibraryInfo.h b/include/llvm/Target/TargetLibraryInfo.h index 0fd625cafd3..34d511cf83e 100644 --- a/include/llvm/Target/TargetLibraryInfo.h +++ b/include/llvm/Target/TargetLibraryInfo.h @@ -18,36 +18,47 @@ namespace llvm { namespace LibFunc { enum Func { + /// 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, - /// long double acosl(long double x); - acosl, /// float acosf(float x); acosf, + /// long double acosl(long double x); + acosl, /// double asin(double x); asin, - /// long double asinl(long double x); - asinl, /// float asinf(float x); asinf, + /// long double asinl(long double x); + asinl, /// double atan(double x); atan, - /// long double atanl(long double x); - atanl, - /// float atanf(float x); - atanf, /// double atan2(double y, double x); atan2, - /// long double atan2l(long double y, long double x); - atan2l, /// float atan2f(float y, float x); atan2f, + /// long double atan2l(long double y, long double x); + atan2l, + /// float atanf(float x); + atanf, + /// long double atanl(long double x); + atanl, /// double ceil(double x); ceil, - /// long double ceill(long double x); - ceill, /// 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); @@ -56,54 +67,54 @@ namespace llvm { copysignl, /// double cos(double x); cos, - /// long double cosl(long double x); - cosl, /// float cosf(float x); cosf, /// double cosh(double x); cosh, - /// long double coshl(long double x); - coshl, /// float coshf(float x); coshf, + /// long double coshl(long double x); + coshl, + /// long double cosl(long double x); + cosl, /// double exp(double x); exp, - /// long double expl(long double x); - expl, - /// float expf(float x); - expf, /// double exp2(double x); exp2, - /// long double exp2l(long double x); - exp2l, /// 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, - /// long double expm1l(long double x); - expm1l, /// float expm1f(float x); expm1f, + /// long double expm1l(long double x); + expm1l, /// double fabs(double x); fabs, - /// long double fabsl(long double x); - fabsl, /// float fabsf(float x); fabsf, - /// double floor(double x); - floor, - /// long double floorl(long double x); - floorl, - /// float floorf(float x); - floorf, + /// 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, - /// long double fmodl(long double x, long double y); - fmodl, /// 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); @@ -115,28 +126,28 @@ namespace llvm { iprintf, /// double log(double x); log, - /// long double logl(long double x); - logl, - /// float logf(float x); - logf, - /// double log2(double x); - log2, - /// double long double log2l(long double x); - log2l, - /// float log2f(float x); - log2f, /// double log10(double x); log10, - /// long double log10l(long double x); - log10l, /// float log10f(float x); log10f, + /// long double log10l(long double x); + log10l, /// double log1p(double x); log1p, - /// long double log1pl(long double x); - log1pl, /// 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, + /// float logf(float x); + logf, + /// long double logl(long double x); + logl, /// void *memchr(const void *s, int c, size_t n); memchr, /// int memcmp(const void *s1, const void *s2, size_t n); @@ -179,24 +190,24 @@ namespace llvm { roundl, /// double sin(double x); sin, - /// long double sinl(long double x); - sinl, /// float sinf(float x); sinf, /// double sinh(double x); sinh, - /// long double sinhl(long double x); - sinhl, /// 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, - /// long double sqrtl(long double x); - sqrtl, /// 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); @@ -215,33 +226,22 @@ namespace llvm { strnlen, /// double tan(double x); tan, - /// long double tanl(long double x); - tanl, /// float tanf(float x); tanf, /// double tanh(double x); tanh, - /// long double tanhl(long double x); - tanhl, /// 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, - /// 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, NumLibFuncs }; @@ -275,6 +275,10 @@ public: 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 { diff --git a/lib/Target/TargetLibraryInfo.cpp b/lib/Target/TargetLibraryInfo.cpp index 7e9cf12bb46..8e215a76372 100644 --- a/lib/Target/TargetLibraryInfo.cpp +++ b/lib/Target/TargetLibraryInfo.cpp @@ -24,65 +24,70 @@ void TargetLibraryInfo::anchor() { } const char* TargetLibraryInfo::StandardNames[LibFunc::NumLibFuncs] = { + "__cxa_atexit", + "__cxa_guard_abort", + "__cxa_guard_acquire", + "__cxa_guard_release", + "__memcpy_chk", "acos", - "acosl", "acosf", + "acosl", "asin", - "asinl", "asinf", + "asinl", "atan", - "atanl", - "atanf", "atan2", - "atan2l", "atan2f", + "atan2l", + "atanf", + "atanl", "ceil", - "ceill", "ceilf", + "ceill", "copysign", "copysignf", "copysignl", "cos", - "cosl", "cosf", "cosh", - "coshl", "coshf", + "coshl", + "cosl", "exp", - "expl", - "expf", "exp2", - "exp2l", "exp2f", + "exp2l", + "expf", + "expl", "expm1", - "expm1l", "expm1f", + "expm1l", "fabs", - "fabsl", "fabsf", - "floor", - "floorl", - "floorf", + "fabsl", "fiprintf", + "floor", + "floorf", + "floorl", "fmod", - "fmodl", "fmodf", + "fmodl", "fputc", "fputs", "fwrite", "iprintf", "log", - "logl", - "logf", - "log2", - "log2l", - "log2f", "log10", - "log10l", "log10f", + "log10l", "log1p", - "log1pl", "log1pf", + "log1pl", + "log2", + "log2f", + "log2l", + "logf", + "logl", "memchr", "memcmp", "memcpy", @@ -104,15 +109,15 @@ const char* TargetLibraryInfo::StandardNames[LibFunc::NumLibFuncs] = "roundf", "roundl", "sin", - "sinl", "sinf", "sinh", - "sinhl", "sinhf", + "sinhl", + "sinl", "siprintf", "sqrt", - "sqrtl", "sqrtf", + "sqrtl", "strcat", "strchr", "strcpy", @@ -122,27 +127,30 @@ const char* TargetLibraryInfo::StandardNames[LibFunc::NumLibFuncs] = "strncpy", "strnlen", "tan", - "tanl", "tanf", "tanh", - "tanhl", "tanhf", + "tanhl", + "tanl", "trunc", "truncf", - "truncl", - "__cxa_atexit", - "__cxa_guard_abort", - "__cxa_guard_acquire", - "__cxa_guard_release", - "__memcpy_chk" + "truncl" }; /// initialize - Initialize the set of available library functions based on the /// specified target triple. This should be carefully written so that a missing /// target triple gets a sane set of defaults. -static void initialize(TargetLibraryInfo &TLI, const Triple &T) { +static void initialize(TargetLibraryInfo &TLI, const Triple &T, + const char **StandardNames) { initializeTargetLibraryInfoPass(*PassRegistry::getPassRegistry()); +#ifndef NDEBUG + // Verify that the StandardNames array is in alphabetical order. + for (unsigned F = 1; F < LibFunc::NumLibFuncs; ++F) { + if (strcmp(StandardNames[F-1], StandardNames[F]) >= 0) + llvm_unreachable("TargetLibraryInfo function names must be sorted"); + } +#endif // !NDEBUG // memset_pattern16 is only available on iOS 3.0 and Mac OS/X 10.5 and later. if (T.isMacOSX()) { @@ -254,14 +262,14 @@ TargetLibraryInfo::TargetLibraryInfo() : ImmutablePass(ID) { // Default to everything being available. memset(AvailableArray, -1, sizeof(AvailableArray)); - initialize(*this, Triple()); + initialize(*this, Triple(), StandardNames); } TargetLibraryInfo::TargetLibraryInfo(const Triple &T) : ImmutablePass(ID) { // Default to everything being available. memset(AvailableArray, -1, sizeof(AvailableArray)); - initialize(*this, T); + initialize(*this, T, StandardNames); } TargetLibraryInfo::TargetLibraryInfo(const TargetLibraryInfo &TLI) @@ -270,6 +278,17 @@ TargetLibraryInfo::TargetLibraryInfo(const TargetLibraryInfo &TLI) CustomNames = TLI.CustomNames; } +bool TargetLibraryInfo::getLibFunc(StringRef funcName, + LibFunc::Func &F) const { + const char **Start = &StandardNames[0]; + const char **End = &StandardNames[LibFunc::NumLibFuncs]; + const char **I = std::lower_bound(Start, End, funcName); + if (I != End && *I == funcName) { + F = (LibFunc::Func)(I - Start); + return true; + } + return false; +} /// disableAllFunctions - This disables all builtins, which is used for options /// like -fno-builtin.