X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FTarget%2FTargetLibraryInfo.cpp;h=616ff9067300706adf65999f7b3854f21dc6c44b;hb=886f0101a7d176543b831f5efb74c03427244a55;hp=b208bfd3728d48995f08403ef3edafe936701def;hpb=52b162375ad7f0e1d820ae959031ac70e254aa3b;p=oota-llvm.git

diff --git a/lib/Target/TargetLibraryInfo.cpp b/lib/Target/TargetLibraryInfo.cpp
index b208bfd3728..616ff906730 100644
--- a/lib/Target/TargetLibraryInfo.cpp
+++ b/lib/Target/TargetLibraryInfo.cpp
@@ -48,7 +48,7 @@ const char* TargetLibraryInfo::StandardNames[LibFunc::NumLibFuncs] =
     "__isoc99_sscanf",
     "__memcpy_chk",
     "__sincospi_stret",
-    "__sincospi_stretf",
+    "__sincospif_stret",
     "__sinpi",
     "__sinpif",
     "__sqrt_finite",
@@ -190,6 +190,9 @@ const char* TargetLibraryInfo::StandardNames[LibFunc::NumLibFuncs] =
     "isdigit",
     "labs",
     "lchown",
+    "ldexp",
+    "ldexpf",
+    "ldexpl",
     "llabs",
     "log",
     "log10",
@@ -375,8 +378,17 @@ static void initialize(TargetLibraryInfo &TLI, const Triple &T,
       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.
+
+  // There are no library implementations of mempcy and memset for r600 and
+  // these can be difficult to lower in the backend.
+  if (T.getArch() == Triple::r600) {
+    TLI.setUnavailable(LibFunc::memcpy);
+    TLI.setUnavailable(LibFunc::memset);
+    TLI.setUnavailable(LibFunc::memset_pattern16);
+    return;
+  }
+
+  // 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);
@@ -393,7 +405,7 @@ static void initialize(TargetLibraryInfo &TLI, const Triple &T,
     TLI.setUnavailable(LibFunc::cospi);
     TLI.setUnavailable(LibFunc::cospif);
     TLI.setUnavailable(LibFunc::sincospi_stret);
-    TLI.setUnavailable(LibFunc::sincospi_stretf);
+    TLI.setUnavailable(LibFunc::sincospif_stret);
   }
 
   if (T.isMacOSX() && T.getArch() == Triple::x86 &&
@@ -414,7 +426,7 @@ static void initialize(TargetLibraryInfo &TLI, const Triple &T,
     TLI.setUnavailable(LibFunc::fiprintf);
   }
 
-  if (T.getOS() == Triple::Win32) {
+  if (T.isOSWindows() && !T.isOSCygMing()) {
     // Win32 does not support long double
     TLI.setUnavailable(LibFunc::acosl);
     TLI.setUnavailable(LibFunc::asinl);
@@ -432,6 +444,8 @@ static void initialize(TargetLibraryInfo &TLI, const Triple &T,
     TLI.setUnavailable(LibFunc::fminl);
     TLI.setUnavailable(LibFunc::fmodl);
     TLI.setUnavailable(LibFunc::frexpl);
+    TLI.setUnavailable(LibFunc::ldexpf);
+    TLI.setUnavailable(LibFunc::ldexpl);
     TLI.setUnavailable(LibFunc::logl);
     TLI.setUnavailable(LibFunc::modfl);
     TLI.setUnavailable(LibFunc::powl);
@@ -574,14 +588,11 @@ static void initialize(TargetLibraryInfo &TLI, const Triple &T,
     TLI.setUnavailable(LibFunc::llabs);
   }
 
-  // exp10, exp10f, exp10l is available on at least Linux (GLIBC)
-  // exp10 and exp10f are not available on OS X until 10.9 and iOS until 7.0
-  // and their names are __exp10 and __exp10f. exp10l is not available on
-  // OS X or iOS.
   switch (T.getOS()) {
-  case Triple::Linux:
-    break;
   case Triple::MacOSX:
+    // exp10 and exp10f are not available on OS X until 10.9 and iOS until 7.0
+    // and their names are __exp10 and __exp10f. exp10l is not available on
+    // OS X or iOS.
     TLI.setUnavailable(LibFunc::exp10l);
     if (T.isMacOSXVersionLT(10, 9)) {
       TLI.setUnavailable(LibFunc::exp10);
@@ -601,6 +612,13 @@ static void initialize(TargetLibraryInfo &TLI, const Triple &T,
       TLI.setAvailableWithName(LibFunc::exp10f, "__exp10f");
     }
     break;
+  case Triple::Linux:
+    // exp10, exp10f, exp10l is available on Linux (GLIBC) but are extremely
+    // buggy prior to glibc version 2.18. Until this version is widely deployed
+    // or we have a reasonable detection strategy, we cannot use exp10 reliably
+    // on Linux.
+    //
+    // Fall through to disable all of them.
   default:
     TLI.setUnavailable(LibFunc::exp10);
     TLI.setUnavailable(LibFunc::exp10f);