forked from OSchip/llvm-project
151 lines
3.9 KiB
C++
151 lines
3.9 KiB
C++
//===-- 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;
|
|
|
|
const char* TargetLibraryInfo::StandardNames[LibFunc::NumLibFuncs] =
|
|
{
|
|
"acos",
|
|
"acosl",
|
|
"acosf",
|
|
"asin",
|
|
"asinl",
|
|
"asinf",
|
|
"atan",
|
|
"atanl",
|
|
"atanf",
|
|
"ceil",
|
|
"ceill",
|
|
"ceilf",
|
|
"cos",
|
|
"cosl",
|
|
"cosf",
|
|
"cosh",
|
|
"coshl",
|
|
"coshf",
|
|
"exp",
|
|
"expl",
|
|
"expf",
|
|
"exp2",
|
|
"exp2l",
|
|
"exp2f",
|
|
"expm1",
|
|
"expm1l",
|
|
"expl1f",
|
|
"fabs",
|
|
"fabsl",
|
|
"fabsf",
|
|
"floor",
|
|
"floorl",
|
|
"floorf",
|
|
"fiprintf",
|
|
"fputs",
|
|
"fwrite",
|
|
"iprintf",
|
|
"log",
|
|
"logl",
|
|
"logf",
|
|
"log2",
|
|
"log2l",
|
|
"log2f",
|
|
"log10",
|
|
"log10l",
|
|
"log10f",
|
|
"log1p",
|
|
"log1pl",
|
|
"log1pf",
|
|
"memcpy",
|
|
"memmove",
|
|
"memset",
|
|
"memset_pattern16",
|
|
"pow",
|
|
"powf",
|
|
"powl",
|
|
"siprintf",
|
|
"sqrt",
|
|
"sqrtl",
|
|
"sqrtf"
|
|
};
|
|
|
|
/// 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));
|
|
}
|