1 files changed, 35 insertions, 2 deletions
diff --git a/lib/Target/TargetLibraryInfo.cpp b/lib/Target/TargetLibraryInfo.cpp
index 8696b57..3e68fe1 100644
--- a/lib/Target/TargetLibraryInfo.cpp
+++ b/lib/Target/TargetLibraryInfo.cpp
@@ -38,6 +38,8 @@ const char* TargetLibraryInfo::StandardNames[LibFunc::NumLibFuncs] =
     "_ZnwjRKSt9nothrow_t",
     "_Znwm",
     "_ZnwmRKSt9nothrow_t",
+    "__cospi",
+    "__cospif",
     "__cxa_atexit",
     "__cxa_guard_abort",
     "__cxa_guard_acquire",
@@ -45,6 +47,10 @@ const char* TargetLibraryInfo::StandardNames[LibFunc::NumLibFuncs] =
     "__isoc99_scanf",
     "__isoc99_sscanf",
     "__memcpy_chk",
+    "__sincospi_stret",
+    "__sincospi_stretf",
+    "__sinpi",
+    "__sinpif",
     "__sqrt_finite",
     "__sqrtf_finite",
     "__sqrtl_finite",
@@ -331,6 +337,24 @@ const char* TargetLibraryInfo::StandardNames[LibFunc::NumLibFuncs] =
     "write"
   };
 
+static bool hasSinCosPiStret(const Triple &T) {
+  // Only Darwin variants have _stret versions of combined trig functions.
+  if (!T.isMacOSX() && T.getOS() != Triple::IOS)
+    return false;
+
+  // The ABI is rather complicated on x86, so don't do anything special there.
+  if (T.getArch() == Triple::x86)
+    return false;
+
+  if (T.isMacOSX() && T.isMacOSXVersionLT(10, 9))
+    return false;
+
+  if (T.getOS() == Triple::IOS && T.isOSVersionLT(7, 0))
+    return false;
+
+  return true;
+}
+
 /// 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.
@@ -350,13 +374,22 @@ static void initialize(TargetLibraryInfo &TLI, const Triple &T,
   if (T.isMacOSX()) {
     if (T.isMacOSXVersionLT(10, 5))
       TLI.setUnavailable(LibFunc::memset_pattern16);
-  } else if (T.getOS() == Triple::IOS) {
+  } else if (T.isiOS()) {
     if (T.isOSVersionLT(3, 0))
       TLI.setUnavailable(LibFunc::memset_pattern16);
   } else {
     TLI.setUnavailable(LibFunc::memset_pattern16);
   }
 
+  if (!hasSinCosPiStret(T)) {
+    TLI.setUnavailable(LibFunc::sinpi);
+    TLI.setUnavailable(LibFunc::sinpif);
+    TLI.setUnavailable(LibFunc::cospi);
+    TLI.setUnavailable(LibFunc::cospif);
+    TLI.setUnavailable(LibFunc::sincospi_stret);
+    TLI.setUnavailable(LibFunc::sincospi_stretf);
+  }
+
   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
@@ -562,7 +595,7 @@ static void initialize(TargetLibraryInfo &TLI, const Triple &T,
   }
 
   // The following functions are available on at least Linux:
-  if (T.getOS() != Triple::Linux) {
+  if (!T.isOSLinux()) {
     TLI.setUnavailable(LibFunc::dunder_strdup);
     TLI.setUnavailable(LibFunc::dunder_strtok_r);
     TLI.setUnavailable(LibFunc::dunder_isoc99_scanf);