Add more functions to the target library information.

In the process of migrating optimizations from the simplify-libcalls pass
to the instcombine pass I noticed that a few functions are missing from
the target library information.  These functions need to be available for
querying in the instcombine library call simplifiers.  More functions will
probably be added in the future as more simplifiers are migrated to
instcombine.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167659 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/include/llvm/Target/TargetLibraryInfo.h b/include/llvm/Target/TargetLibraryInfo.h
index 2a0a43229fdd4a6ed7b43d9f284993b0f63adc7c..a2c97d782e29d18442df324087f563ddf626b528 100644 (file)
--- a/include/llvm/Target/TargetLibraryInfo.h
+++ b/include/llvm/Target/TargetLibraryInfo.h
@@ -276,12 +276,18 @@ namespace llvm {
       sqrtf,
       /// long double sqrtl(long double x);
       sqrtl,
+      /// char *stpcpy(char *s1, const char *s2);
+      stpcpy,
       /// char *strcat(char *s1, const char *s2);
       strcat,
       /// char *strchr(const char *s, int c);
       strchr,
+      /// int strcmp(const char *s1, const char *s2);
+      strcmp,
       /// char *strcpy(char *s1, const char *s2);
       strcpy,
+      /// size_t strcspn(const char *s1, const char *s2);
+      strcspn,
       /// char *strdup(const char *s1);
       strdup,
       /// size_t strlen(const char *s);
@@ -296,6 +302,29 @@ namespace llvm {
       strndup,
       /// size_t strnlen(const char *s, size_t maxlen);
       strnlen,
+      /// char *strpbrk(const char *s1, const char *s2);
+      strpbrk,
+      /// char *strrchr(const char *s, int c);
+      strrchr,
+      /// size_t strspn(const char *s1, const char *s2);
+      strspn,
+      /// char *strstr(const char *s1, const char *s2);
+      strstr,
+      /// double strtod(const char *nptr, char **endptr);
+      strtod,
+      /// float strtof(const char *nptr, char **endptr);
+      strtof,
+      /// long int strtol(const char *nptr, char **endptr, int base);
+      strtol,
+      /// long double strtold(const char *nptr, char **endptr);
+      strtold,
+      /// long long int strtoll(const char *nptr, char **endptr, int base);
+      strtoll,
+      /// unsigned long int strtoul(const char *nptr, char **endptr, int base);
+      strtoul,
+      /// unsigned long long int strtoull(const char *nptr, char **endptr,
+      ///                                 int base);
+      strtoull,
       /// double tan(double x);
       tan,
       /// float tanf(float x);

diff --git a/lib/Target/TargetLibraryInfo.cpp b/lib/Target/TargetLibraryInfo.cpp
index 62f973e65833c6e9ee5bc25952df77e88f90cb3d..6d4eab12045c0af80e271d43c574635828f2c767 100644 (file)
--- a/lib/Target/TargetLibraryInfo.cpp
+++ b/lib/Target/TargetLibraryInfo.cpp
@@ -152,9 +152,12 @@ const char* TargetLibraryInfo::StandardNames[LibFunc::NumLibFuncs] =
     "sqrt",
     "sqrtf",
     "sqrtl",
+    "stpcpy",
     "strcat",
     "strchr",
+    "strcmp",
     "strcpy",
+    "strcspn",
     "strdup",
     "strlen",
     "strncat",
@@ -162,6 +165,17 @@ const char* TargetLibraryInfo::StandardNames[LibFunc::NumLibFuncs] =
     "strncpy",
     "strndup",
     "strnlen",
+    "strpbrk",
+    "strrchr",
+    "strspn",
+    "strstr",
+    "strtod",
+    "strtof",
+    "strtol",
+    "strtold",
+    "strtoll",
+    "strtoul",
+    "strtoull",
     "tan",
     "tanf",
     "tanh",
@@ -309,6 +323,10 @@ static void initialize(TargetLibraryInfo &TLI, const Triple &T,
       TLI.setUnavailable(LibFunc::tanf);
       TLI.setUnavailable(LibFunc::tanhf);
     }
+
+    // Win32 does *not* provide stpcpy.  It is provided on POSIX systems:
+    // http://pubs.opengroup.org/onlinepubs/9699919799/functions/stpcpy.html
+    TLI.setUnavailable(LibFunc::stpcpy);
   }
 }