MFC 261991:

Upgrade our copy of llvm/clang to 3.4 release.  This version supports
all of the features in the current working draft of the upcoming C++
standard, provisionally named C++1y.

The code generator's performance is greatly increased, and the loop
auto-vectorizer is now enabled at -Os and -O2 in addition to -O3.  The
PowerPC backend has made several major improvements to code generation
quality and compile time, and the X86, SPARC, ARM32, Aarch64 and SystemZ
backends have all seen major feature work.

Release notes for llvm and clang can be found here:
<http://llvm.org/releases/3.4/docs/ReleaseNotes.html>
<http://llvm.org/releases/3.4/tools/clang/docs/ReleaseNotes.html>

MFC 262121 (by emaste):

Update lldb for clang/llvm 3.4 import

This commit largely restores the lldb source to the upstream r196259
snapshot with the addition of threaded inferior support and a few bug
fixes.

Specific upstream lldb revisions restored include:
   SVN      git
  181387  779e6ac
  181703  7bef4e2
  182099  b31044e
  182650  f2dcf35
  182683  0d91b80
  183862  15c1774
  183929  99447a6
  184177  0b2934b
  184948  4dc3761
  184954  007e7bc
  186990  eebd175

Sponsored by:	DARPA, AFRL

MFC 262186 (by emaste):

Fix mismerge in r262121

A break statement was lost in the merge.  The error had no functional
impact, but restore it to reduce the diff against upstream.

MFC 262303:

Pull in r197521 from upstream clang trunk (by rdivacky):

  Use the integrated assembler by default on FreeBSD/ppc and ppc64.

Requested by:	jhibbits

MFC 262611:

Pull in r196874 from upstream llvm trunk:

  Fix a crash that occurs when PWD is invalid.

  MCJIT needs to be able to run in hostile environments, even when PWD
  is invalid. There's no need to crash MCJIT in this case.

  The obvious fix is to simply leave MCContext's CompilationDir empty
  when PWD can't be determined. This way, MCJIT clients,
  and other clients that link with LLVM don't need a valid working directory.

  If we do want to guarantee valid CompilationDir, that should be done
  only for clients of getCompilationDir(). This is as simple as checking
  for an empty string.

  The only current use of getCompilationDir is EmitGenDwarfInfo, which
  won't conceivably run with an invalid working dir. However, in the
  purely hypothetically and untestable case that this happens, the
  AT_comp_dir will be omitted from the compilation_unit DIE.

This should help fix assertions occurring with ports-mgmt/tinderbox,
when it is using jails, and sometimes invalidates clang's current
working directory.

Reported by:	decke

MFC 262809:

Pull in r203007 from upstream clang trunk:

  Don't produce an alias between destructors with different calling conventions.

  Fixes pr19007.

(Please note that is an LLVM PR identifier, not a FreeBSD one.)

This should fix Firefox and/or libxul crashes (due to problems with
regparm/stdcall calling conventions) on i386.

Reported by:	multiple users on freebsd-current
PR:		bin/187103

MFC 263048:

Repair recognition of "CC" as an alias for the C++ compiler, since it
was silently broken by upstream for a Windows-specific use-case.

Apparently some versions of CMake still rely on this archaic feature...

Reported by:	rakuco

MFC 263049:

Garbage collect the old way of adding the libstdc++ include directories
in clang's InitHeaderSearch.cpp.  This has been superseded by David
Chisnall's commit in r255321.

Moreover, if libc++ is used, the libstdc++ include directories should
not be in the search path at all.  These directories are now only used
if you pass -stdlib=libstdc++.

2 files changed, 42 insertions, 70 deletions

diff --git a/lib/clang/include/llvm/Config/config.h b/lib/clang/include/llvm/Config/config.h
index d72aba8..985d259 100644
--- a/lib/clang/include/llvm/Config/config.h
+++ b/lib/clang/include/llvm/Config/config.h
@@ -8,6 +8,9 @@
 /* Get __FreeBSD_version. */
 #include <osreldate.h>
 
+/* Define if building universal (internal helper macro) */
+/* #undef AC_APPLE_UNIVERSAL_BUILD */
+
 /* Bug report URL. */
 #define BUG_REPORT_URL "http://llvm.org/bugs/"
 
@@ -26,6 +29,9 @@
 /* Define if you want backtraces on crash */
 #define ENABLE_BACKTRACES 1
 
+/* Define to enable crash handling overrides */
+#define ENABLE_CRASH_OVERRIDES 1
+
 /* Define if position independent code is enabled */
 #define ENABLE_PIC 0
 
@@ -56,15 +62,9 @@
 /* Define to 1 if you have the `argz_stringify' function. */
 /* #undef HAVE_ARGZ_STRINGIFY */
 
-/* Define to 1 if you have the <assert.h> header file. */
-#define HAVE_ASSERT_H 1
-
 /* Define to 1 if you have the `backtrace' function. */
 /* #undef HAVE_BACKTRACE */
 
-/* Define to 1 if you have the `bcopy' function. */
-/* #undef HAVE_BCOPY */
-
 /* Define to 1 if you have the `ceilf' function. */
 #define HAVE_CEILF 1
 
@@ -80,9 +80,6 @@
 /* can use __crashreporter_info__ */
 #define HAVE_CRASHREPORTER_INFO 0
 
-/* Define to 1 if you have the <ctype.h> header file. */
-#define HAVE_CTYPE_H 1
-
 /* Define to 1 if you have the <cxxabi.h> header file. */
 #define HAVE_CXXABI_H 1
 
@@ -105,9 +102,6 @@
 /* Define if you have the GNU dld library. */
 /* #undef HAVE_DLD */
 
-/* Define to 1 if you have the <dld.h> header file. */
-/* #undef HAVE_DLD_H */
-
 /* Define to 1 if you have the `dlerror' function. */
 #define HAVE_DLERROR 1
 
@@ -117,9 +111,6 @@
 /* Define if dlopen() is available on this platform. */
 #define HAVE_DLOPEN 1
 
-/* Define to 1 if you have the <dl.h> header file. */
-/* #undef HAVE_DL_H */
-
 /* Define if the dot program is available */
 /* #undef HAVE_DOT */
 
@@ -171,6 +162,12 @@
 /* Define to 1 if you have the `fmodf' function. */
 #define HAVE_FMODF 1
 
+/* Define to 1 if you have the `futimens' function. */
+/* #undef HAVE_FUTIMENS */
+
+/* Define to 1 if you have the `futimes' function. */
+#define HAVE_FUTIMES 1
+
 /* Define to 1 if you have the `getcwd' function. */
 #define HAVE_GETCWD 1
 
@@ -192,9 +189,6 @@
 /* Define if the gv program is available */
 /* #undef HAVE_GV */
 
-/* Define to 1 if you have the `index' function. */
-/* #undef HAVE_INDEX */
-
 /* Define to 1 if the system has the type `int64_t'. */
 #define HAVE_INT64_T 1
 
@@ -231,16 +225,16 @@
 /* Define to 1 if you have the `pthread' library (-lpthread). */
 /* #undef HAVE_LIBPTHREAD */
 
+/* Define to 1 if you have the `shell32' library (-lshell32). */
+/* #undef HAVE_LIBSHELL32 */
+
 /* Define to 1 if you have the `udis86' library (-ludis86). */
 /* #undef HAVE_LIBUDIS86 */
 
 /* Define to 1 if you have the `z' library (-lz). */
 #define HAVE_LIBZ 1
 
-/* Define to 1 if you have the <limits.h> header file. */
-#define HAVE_LIMITS_H 1
-
-/* Define if you can use -Wl,-export-dynamic. */
+/* Define if you can use -rdynamic. */
 #define HAVE_LINK_EXPORT_DYNAMIC 1
 
 /* Define to 1 if you have the <link.h> header file. */
@@ -282,12 +276,6 @@
 /* Define to 1 if you have the `malloc_zone_statistics' function. */
 /* #undef HAVE_MALLOC_ZONE_STATISTICS */
 
-/* Define to 1 if you have the `memcpy' function. */
-#define HAVE_MEMCPY 1
-
-/* Define to 1 if you have the `memmove' function. */
-#define HAVE_MEMMOVE 1
-
 /* Define to 1 if you have the <memory.h> header file. */
 #define HAVE_MEMORY_H 1
 
@@ -358,9 +346,6 @@
 /* Define to 1 if you have the `realpath' function. */
 #define HAVE_REALPATH 1
 
-/* Define to 1 if you have the `rindex' function. */
-/* #undef HAVE_RINDEX */
-
 /* Define to 1 if you have the `rintf' function. */
 #define HAVE_RINTF 1
 
@@ -400,9 +385,6 @@
 /* Define to 1 if you have the <stdint.h> header file. */
 #define HAVE_STDINT_H 1
 
-/* Define to 1 if you have the <stdio.h> header file. */
-#define HAVE_STDIO_H 1
-
 /* Define to 1 if you have the <stdlib.h> header file. */
 #define HAVE_STDLIB_H 1
 
@@ -412,15 +394,6 @@
 /* Set to 1 if the std::isnan function is found in <cmath> */
 #define HAVE_STD_ISNAN_IN_CMATH 1
 
-/* Define to 1 if you have the `strchr' function. */
-#define HAVE_STRCHR 1
-
-/* Define to 1 if you have the `strcmp' function. */
-#define HAVE_STRCMP 1
-
-/* Define to 1 if you have the `strdup' function. */
-#define HAVE_STRDUP 1
-
 /* Define to 1 if you have the `strerror' function. */
 #define HAVE_STRERROR 1
 
@@ -433,9 +406,6 @@
 /* Define to 1 if you have the <string.h> header file. */
 #define HAVE_STRING_H 1
 
-/* Define to 1 if you have the `strrchr' function. */
-#define HAVE_STRRCHR 1
-
 /* Define to 1 if you have the `strtof' function. */
 #define HAVE_STRTOF 1
 
@@ -452,9 +422,6 @@
    */
 /* #undef HAVE_SYS_DIR_H */
 
-/* Define to 1 if you have the <sys/dl.h> header file. */
-/* #undef HAVE_SYS_DL_H */
-
 /* Define to 1 if you have the <sys/ioctl.h> header file. */
 #define HAVE_SYS_IOCTL_H 1
 
@@ -486,6 +453,9 @@
 /* Define to 1 if you have <sys/wait.h> that is POSIX.1 compatible. */
 #define HAVE_SYS_WAIT_H 1
 
+/* Define if the setupterm() function is supported this platform. */
+#define HAVE_TERMINFO 1
+
 /* Define to 1 if you have the <termios.h> header file. */
 #define HAVE_TERMIOS_H 1
 
@@ -507,14 +477,11 @@
 /* Define to 1 if you have the <valgrind/valgrind.h> header file. */
 /* #undef HAVE_VALGRIND_VALGRIND_H */
 
-/* Define to 1 if you have the <windows.h> header file. */
-/* #undef HAVE_WINDOWS_H */
-
 /* Define to 1 if you have the `writev' function. */
 #define HAVE_WRITEV 1
 
-/* Define if the xdot.py program is available */
-/* #undef HAVE_XDOT_PY */
+/* Define if the xdot program is available */
+/* #undef HAVE_XDOT */
 
 /* Define to 1 if you have the <zlib.h> header file. */
 #define HAVE_ZLIB_H 1
@@ -609,9 +576,6 @@
 /* Installation directory for .info files */
 /* #undef LLVM_INFODIR */
 
-/* Installation directory for libraries */
-/* #undef LLVM_LIBDIR */
-
 /* Installation directory for man pages */
 /* #undef LLVM_MANDIR */
 
@@ -666,8 +630,8 @@
 /* Define to path to twopi program if found or 'echo twopi' otherwise */
 /* #undef LLVM_PATH_TWOPI */
 
-/* Define to path to xdot.py program if found or 'echo xdot.py' otherwise */
-/* #undef LLVM_PATH_XDOT_PY */
+/* Define to path to xdot program if found or 'echo xdot' otherwise */
+/* #undef LLVM_PATH_XDOT */
 
 /* Installation prefix directory */
 #define LLVM_PREFIX ""
@@ -682,7 +646,7 @@
 #define LLVM_VERSION_MAJOR 3
 
 /* Minor version of the LLVM API */
-#define LLVM_VERSION_MINOR 3
+#define LLVM_VERSION_MINOR 4
 
 /* Define if the OS needs help to load dependent libraries for dlopen(). */
 #define LTDL_DLOPEN_DEPLIBS 1
@@ -691,10 +655,6 @@
    */
 #define LTDL_OBJDIR ".libs/"
 
-/* Define to the name of the environment variable that determines the dynamic
-   library search path. */
-#define LTDL_SHLIBPATH_VAR "LD_LIBRARY_PATH"
-
 /* Define to the extension used for shared libraries, say, ".so". */
 #define LTDL_SHLIB_EXT ".so"
 
@@ -715,13 +675,16 @@
 #define PACKAGE_NAME "LLVM"
 
 /* Define to the full name and version of this package. */
-#define PACKAGE_STRING "LLVM 3.3"
+#define PACKAGE_STRING "LLVM 3.4"
 
 /* Define to the one symbol short name of this package. */
 #define PACKAGE_TARNAME "llvm"
 
+/* Define to the home page for this package. */
+/* #undef PACKAGE_URL */
+
 /* Define to the version of this package. */
-#define PACKAGE_VERSION "3.3"
+#define PACKAGE_VERSION "3.4"
 
 /* Define as the return type of signal handlers (`int' or `void'). */
 #define RETSIGTYPE void
@@ -744,6 +707,18 @@
 /* Type of 1st arg on ELM Callback */
 /* #undef WIN32_ELMCB_PCSTR */
 
+/* Define WORDS_BIGENDIAN to 1 if your processor stores words with the most
+   significant byte first (like Motorola and SPARC, unlike Intel). */
+#if defined AC_APPLE_UNIVERSAL_BUILD
+# if defined __BIG_ENDIAN__
+#  define WORDS_BIGENDIAN 1
+# endif
+#else
+# ifndef WORDS_BIGENDIAN
+/* #  undef WORDS_BIGENDIAN */
+# endif
+#endif
+
 /* Define to empty if `const' does not conform to ANSI C. */
 /* #undef const */
 
diff --git a/lib/clang/include/llvm/Config/llvm-config.h b/lib/clang/include/llvm/Config/llvm-config.h
index 86e0e49..c746687 100644
--- a/lib/clang/include/llvm/Config/llvm-config.h
+++ b/lib/clang/include/llvm/Config/llvm-config.h
@@ -51,9 +51,6 @@
 /* Installation directory for .info files */
 /* #undef LLVM_INFODIR */
 
-/* Installation directory for libraries */
-/* #undef LLVM_LIBDIR */
-
 /* Installation directory for man pages */
 /* #undef LLVM_MANDIR */
 
@@ -124,6 +121,6 @@
 #define LLVM_VERSION_MAJOR 3
 
 /* Minor version of the LLVM API */
-#define LLVM_VERSION_MINOR 3
+#define LLVM_VERSION_MINOR 4
 
 #endif