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Diffstat (limited to 'contrib/llvm/lib/Target/TargetLibraryInfo.cpp')
-rw-r--r-- | contrib/llvm/lib/Target/TargetLibraryInfo.cpp | 186 |
1 files changed, 186 insertions, 0 deletions
diff --git a/contrib/llvm/lib/Target/TargetLibraryInfo.cpp b/contrib/llvm/lib/Target/TargetLibraryInfo.cpp new file mode 100644 index 0000000..269958f --- /dev/null +++ b/contrib/llvm/lib/Target/TargetLibraryInfo.cpp @@ -0,0 +1,186 @@ +//===-- TargetLibraryInfo.cpp - Runtime library information ----------------==// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// This file implements the TargetLibraryInfo class. +// +//===----------------------------------------------------------------------===// + +#include "llvm/Target/TargetLibraryInfo.h" +#include "llvm/ADT/Triple.h" +using namespace llvm; + +// Register the default implementation. +INITIALIZE_PASS(TargetLibraryInfo, "targetlibinfo", + "Target Library Information", false, true) +char TargetLibraryInfo::ID = 0; + +void TargetLibraryInfo::anchor() { } + +const char* TargetLibraryInfo::StandardNames[LibFunc::NumLibFuncs] = + { + "acos", + "acosl", + "acosf", + "asin", + "asinl", + "asinf", + "atan", + "atanl", + "atanf", + "atan2", + "atan2l", + "atan2f", + "ceil", + "ceill", + "ceilf", + "copysign", + "copysignf", + "copysignl", + "cos", + "cosl", + "cosf", + "cosh", + "coshl", + "coshf", + "exp", + "expl", + "expf", + "exp2", + "exp2l", + "exp2f", + "expm1", + "expm1l", + "expl1f", + "fabs", + "fabsl", + "fabsf", + "floor", + "floorl", + "floorf", + "fiprintf", + "fmod", + "fmodl", + "fmodf", + "fputs", + "fwrite", + "iprintf", + "log", + "logl", + "logf", + "log2", + "log2l", + "log2f", + "log10", + "log10l", + "log10f", + "log1p", + "log1pl", + "log1pf", + "memcpy", + "memmove", + "memset", + "memset_pattern16", + "nearbyint", + "nearbyintf", + "nearbyintl", + "pow", + "powf", + "powl", + "rint", + "rintf", + "rintl", + "sin", + "sinl", + "sinf", + "sinh", + "sinhl", + "sinhf", + "siprintf", + "sqrt", + "sqrtl", + "sqrtf", + "tan", + "tanl", + "tanf", + "tanh", + "tanhl", + "tanhf", + "trunc", + "truncf", + "truncl", + "__cxa_atexit", + "__cxa_guard_abort", + "__cxa_guard_acquire", + "__cxa_guard_release" + }; + +/// 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) { + initializeTargetLibraryInfoPass(*PassRegistry::getPassRegistry()); + + + // memset_pattern16 is only available on iOS 3.0 and Mac OS/X 10.5 and later. + if (T.isMacOSX()) { + if (T.isMacOSXVersionLT(10, 5)) + TLI.setUnavailable(LibFunc::memset_pattern16); + } else if (T.getOS() == Triple::IOS) { + if (T.isOSVersionLT(3, 0)) + TLI.setUnavailable(LibFunc::memset_pattern16); + } else { + TLI.setUnavailable(LibFunc::memset_pattern16); + } + + if (T.isMacOSX() && T.getArch() == Triple::x86 && + !T.isMacOSXVersionLT(10, 7)) { + // x86-32 OSX has a scheme where fwrite and fputs (and some other functions + // we don't care about) have two versions; on recent OSX, the one we want + // has a $UNIX2003 suffix. The two implementations are identical except + // for the return value in some edge cases. However, we don't want to + // generate code that depends on the old symbols. + TLI.setAvailableWithName(LibFunc::fwrite, "fwrite$UNIX2003"); + TLI.setAvailableWithName(LibFunc::fputs, "fputs$UNIX2003"); + } + + // iprintf and friends are only available on XCore and TCE. + if (T.getArch() != Triple::xcore && T.getArch() != Triple::tce) { + TLI.setUnavailable(LibFunc::iprintf); + TLI.setUnavailable(LibFunc::siprintf); + TLI.setUnavailable(LibFunc::fiprintf); + } +} + + +TargetLibraryInfo::TargetLibraryInfo() : ImmutablePass(ID) { + // Default to everything being available. + memset(AvailableArray, -1, sizeof(AvailableArray)); + + initialize(*this, Triple()); +} + +TargetLibraryInfo::TargetLibraryInfo(const Triple &T) : ImmutablePass(ID) { + // Default to everything being available. + memset(AvailableArray, -1, sizeof(AvailableArray)); + + initialize(*this, T); +} + +TargetLibraryInfo::TargetLibraryInfo(const TargetLibraryInfo &TLI) + : ImmutablePass(ID) { + memcpy(AvailableArray, TLI.AvailableArray, sizeof(AvailableArray)); + CustomNames = TLI.CustomNames; +} + + +/// disableAllFunctions - This disables all builtins, which is used for options +/// like -fno-builtin. +void TargetLibraryInfo::disableAllFunctions() { + memset(AvailableArray, 0, sizeof(AvailableArray)); +} |