X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FTarget%2FTargetLibraryInfo.cpp;h=8e215a763721283d3d640ca2c3e75c6095d2396b;hb=1f1ab3e9c4dbef6a2d610b29903592986be09a10;hp=709dfd283f98ffd9dd5a4b6ffd5807fca4c3cc78;hpb=9fe88973be6bf0f47b36f40ada87176b9d7edd4b;p=oota-llvm.git

diff --git a/lib/Target/TargetLibraryInfo.cpp b/lib/Target/TargetLibraryInfo.cpp
index 709dfd283f9..8e215a76372 100644
--- a/lib/Target/TargetLibraryInfo.cpp
+++ b/lib/Target/TargetLibraryInfo.cpp
@@ -20,12 +20,137 @@ INITIALIZE_PASS(TargetLibraryInfo, "targetlibinfo",
                 "Target Library Information", false, true)
 char TargetLibraryInfo::ID = 0;
 
+void TargetLibraryInfo::anchor() { }
+
+const char* TargetLibraryInfo::StandardNames[LibFunc::NumLibFuncs] =
+  {
+    "__cxa_atexit",
+    "__cxa_guard_abort",
+    "__cxa_guard_acquire",
+    "__cxa_guard_release",
+    "__memcpy_chk",
+    "acos",
+    "acosf",
+    "acosl",
+    "asin",
+    "asinf",
+    "asinl",
+    "atan",
+    "atan2",
+    "atan2f",
+    "atan2l",
+    "atanf",
+    "atanl",
+    "ceil",
+    "ceilf",
+    "ceill",
+    "copysign",
+    "copysignf",
+    "copysignl",
+    "cos",
+    "cosf",
+    "cosh",
+    "coshf",
+    "coshl",
+    "cosl",
+    "exp",
+    "exp2",
+    "exp2f",
+    "exp2l",
+    "expf",
+    "expl",
+    "expm1",
+    "expm1f",
+    "expm1l",
+    "fabs",
+    "fabsf",
+    "fabsl",
+    "fiprintf",
+    "floor",
+    "floorf",
+    "floorl",
+    "fmod",
+    "fmodf",
+    "fmodl",
+    "fputc",
+    "fputs",
+    "fwrite",
+    "iprintf",
+    "log",
+    "log10",
+    "log10f",
+    "log10l",
+    "log1p",
+    "log1pf",
+    "log1pl",
+    "log2",
+    "log2f",
+    "log2l",
+    "logf",
+    "logl",
+    "memchr",
+    "memcmp",
+    "memcpy",
+    "memmove",
+    "memset",
+    "memset_pattern16",
+    "nearbyint",
+    "nearbyintf",
+    "nearbyintl",
+    "pow",
+    "powf",
+    "powl",
+    "putchar",
+    "puts",
+    "rint",
+    "rintf",
+    "rintl",
+    "round",
+    "roundf",
+    "roundl",
+    "sin",
+    "sinf",
+    "sinh",
+    "sinhf",
+    "sinhl",
+    "sinl",
+    "siprintf",
+    "sqrt",
+    "sqrtf",
+    "sqrtl",
+    "strcat",
+    "strchr",
+    "strcpy",
+    "strlen",
+    "strncat",
+    "strncmp",
+    "strncpy",
+    "strnlen",
+    "tan",
+    "tanf",
+    "tanh",
+    "tanhf",
+    "tanhl",
+    "tanl",
+    "trunc",
+    "truncf",
+    "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()) {
@@ -38,12 +163,98 @@ static void initialize(TargetLibraryInfo &TLI, const Triple &T) {
     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);
   }
+
+  if (T.getOS() == Triple::Win32) {
+    // Win32 does not support long double
+    TLI.setUnavailable(LibFunc::acosl);
+    TLI.setUnavailable(LibFunc::asinl);
+    TLI.setUnavailable(LibFunc::atanl);
+    TLI.setUnavailable(LibFunc::atan2l);
+    TLI.setUnavailable(LibFunc::ceill);
+    TLI.setUnavailable(LibFunc::copysignl);
+    TLI.setUnavailable(LibFunc::cosl);
+    TLI.setUnavailable(LibFunc::coshl);
+    TLI.setUnavailable(LibFunc::expl);
+    TLI.setUnavailable(LibFunc::fabsf); // Win32 and Win64 both lack fabsf
+    TLI.setUnavailable(LibFunc::fabsl);
+    TLI.setUnavailable(LibFunc::floorl);
+    TLI.setUnavailable(LibFunc::fmodl);
+    TLI.setUnavailable(LibFunc::logl);
+    TLI.setUnavailable(LibFunc::powl);
+    TLI.setUnavailable(LibFunc::sinl);
+    TLI.setUnavailable(LibFunc::sinhl);
+    TLI.setUnavailable(LibFunc::sqrtl);
+    TLI.setUnavailable(LibFunc::tanl);
+    TLI.setUnavailable(LibFunc::tanhl);
+
+    // Win32 only has C89 math
+    TLI.setUnavailable(LibFunc::exp2);
+    TLI.setUnavailable(LibFunc::exp2f);
+    TLI.setUnavailable(LibFunc::exp2l);
+    TLI.setUnavailable(LibFunc::expm1);
+    TLI.setUnavailable(LibFunc::expm1f);
+    TLI.setUnavailable(LibFunc::expm1l);
+    TLI.setUnavailable(LibFunc::log2);
+    TLI.setUnavailable(LibFunc::log2f);
+    TLI.setUnavailable(LibFunc::log2l);
+    TLI.setUnavailable(LibFunc::log1p);
+    TLI.setUnavailable(LibFunc::log1pf);
+    TLI.setUnavailable(LibFunc::log1pl);
+    TLI.setUnavailable(LibFunc::nearbyint);
+    TLI.setUnavailable(LibFunc::nearbyintf);
+    TLI.setUnavailable(LibFunc::nearbyintl);
+    TLI.setUnavailable(LibFunc::rint);
+    TLI.setUnavailable(LibFunc::rintf);
+    TLI.setUnavailable(LibFunc::rintl);
+    TLI.setUnavailable(LibFunc::round);
+    TLI.setUnavailable(LibFunc::roundf);
+    TLI.setUnavailable(LibFunc::roundl);
+    TLI.setUnavailable(LibFunc::trunc);
+    TLI.setUnavailable(LibFunc::truncf);
+    TLI.setUnavailable(LibFunc::truncl);
+
+    // Win32 provides some C99 math with mangled names
+    TLI.setAvailableWithName(LibFunc::copysign, "_copysign");
+
+    if (T.getArch() == Triple::x86) {
+      // Win32 on x86 implements single-precision math functions as macros
+      TLI.setUnavailable(LibFunc::acosf);
+      TLI.setUnavailable(LibFunc::asinf);
+      TLI.setUnavailable(LibFunc::atanf);
+      TLI.setUnavailable(LibFunc::atan2f);
+      TLI.setUnavailable(LibFunc::ceilf);
+      TLI.setUnavailable(LibFunc::copysignf);
+      TLI.setUnavailable(LibFunc::cosf);
+      TLI.setUnavailable(LibFunc::coshf);
+      TLI.setUnavailable(LibFunc::expf);
+      TLI.setUnavailable(LibFunc::floorf);
+      TLI.setUnavailable(LibFunc::fmodf);
+      TLI.setUnavailable(LibFunc::logf);
+      TLI.setUnavailable(LibFunc::powf);
+      TLI.setUnavailable(LibFunc::sinf);
+      TLI.setUnavailable(LibFunc::sinhf);
+      TLI.setUnavailable(LibFunc::sqrtf);
+      TLI.setUnavailable(LibFunc::tanf);
+      TLI.setUnavailable(LibFunc::tanhf);
+    }
+  }
 }
 
 
@@ -51,21 +262,33 @@ 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)
   : ImmutablePass(ID) {
   memcpy(AvailableArray, TLI.AvailableArray, sizeof(AvailableArray));
+  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.