Taints the non-acquire RMW's store address with the load part

[oota-llvm.git] / autoconf / configure.ac

diff --git a/autoconf/configure.ac b/autoconf/configure.ac
index ca6d710e7d9518930981633cf92c9e9b48063b9c..8d0ae0065d998c766613b20c12912b14c4633575 100644 (file)
--- a/autoconf/configure.ac
+++ b/autoconf/configure.ac
@@ -32,12 +32,12 @@ dnl===-----------------------------------------------------------------------===
 dnl Initialize autoconf and define the package name, version number and
 dnl address for reporting bugs.
 
 dnl Initialize autoconf and define the package name, version number and
 dnl address for reporting bugs.
 

-AC_INIT([LLVM],[3.6.0svn],[http://llvm.org/bugs/])
+AC_INIT([LLVM],[3.8.0],[http://llvm.org/bugs/])

 
 LLVM_VERSION_MAJOR=3
 
 LLVM_VERSION_MAJOR=3

-LLVM_VERSION_MINOR=6
+LLVM_VERSION_MINOR=8

 LLVM_VERSION_PATCH=0
 LLVM_VERSION_PATCH=0

-LLVM_VERSION_SUFFIX=svn
+LLVM_VERSION_SUFFIX=

 
 AC_DEFINE_UNQUOTED([LLVM_VERSION_MAJOR], $LLVM_VERSION_MAJOR, [Major version of the LLVM API])
 AC_DEFINE_UNQUOTED([LLVM_VERSION_MINOR], $LLVM_VERSION_MINOR, [Minor version of the LLVM API])
 
 AC_DEFINE_UNQUOTED([LLVM_VERSION_MAJOR], $LLVM_VERSION_MAJOR, [Major version of the LLVM API])
 AC_DEFINE_UNQUOTED([LLVM_VERSION_MINOR], $LLVM_VERSION_MINOR, [Minor version of the LLVM API])


@@ -51,8 +51,8 @@ AC_SUBST([LLVM_VERSION_SUFFIX])
 
 dnl Provide a copyright substitution and ensure the copyright notice is included
 dnl in the output of --version option of the generated configure script.
 
 dnl Provide a copyright substitution and ensure the copyright notice is included
 dnl in the output of --version option of the generated configure script.

-AC_SUBST(LLVM_COPYRIGHT,["Copyright (c) 2003-2014 University of Illinois at Urbana-Champaign."])
-AC_COPYRIGHT([Copyright (c) 2003-2014 University of Illinois at Urbana-Champaign.])
+AC_SUBST(LLVM_COPYRIGHT,["Copyright (c) 2003-2015 University of Illinois at Urbana-Champaign."])
+AC_COPYRIGHT([Copyright (c) 2003-2015 University of Illinois at Urbana-Champaign.])

 
 dnl Indicate that we require autoconf 2.60 or later.
 AC_PREREQ(2.60)
 
 dnl Indicate that we require autoconf 2.60 or later.
 AC_PREREQ(2.60)


@@ -73,6 +73,11 @@ if test ${srcdir} != "." ; then
   fi
 fi
 
   fi
 fi
 

+dnl Quit if it is an in-source build
+if test ${srcdir} = "." ; then
+  AC_MSG_ERROR([In-source builds are not allowed. Please configure from a separate build directory!])
+fi
+

 dnl Default to empty (i.e. assigning the null string to) CFLAGS and CXXFLAGS,
 dnl instead of the autoconf default (for example, '-g -O2' for CC=gcc).
 : ${CFLAGS=}
 dnl Default to empty (i.e. assigning the null string to) CFLAGS and CXXFLAGS,
 dnl instead of the autoconf default (for example, '-g -O2' for CC=gcc).
 : ${CFLAGS=}


@@ -105,7 +110,7 @@ if test "$CXX" = "clang++" ; then
 ],
 [
   AC_MSG_RESULT([no])
 ],
 [
   AC_MSG_RESULT([no])

-  AC_MSG_ERROR([Selected compiler could not find or parse C++ standard library headers.  Rerun with CC=c-compiler CXX=c++-compiler ./configure ...])
+  AC_MSG_ERROR([Selected compiler could not find or parse C++ standard library headers.  Rerun with CC=c-compiler CXX=c++-compiler LLVM_SRC_DIR/configure ...])

 ])
   AC_LANG_POP([C++])
 fi
 ])
   AC_LANG_POP([C++])
 fi


@@ -128,6 +133,7 @@ AC_COMPILE_IFELSE([AC_LANG_SOURCE([[#if ! __clang__
                                      llvm_cv_cxx_compiler=gcc, [])])
 AC_LANG_POP([C++])
 AC_MSG_RESULT([${llvm_cv_cxx_compiler}])
                                      llvm_cv_cxx_compiler=gcc, [])])
 AC_LANG_POP([C++])
 AC_MSG_RESULT([${llvm_cv_cxx_compiler}])

+AC_SUBST(CXX_COMPILER,$llvm_cv_cxx_compiler)

 
 dnl Configure all of the projects present in our source tree. While we could
 dnl just AC_CONFIG_SUBDIRS on the set of directories in projects that have a
 
 dnl Configure all of the projects present in our source tree. While we could
 dnl just AC_CONFIG_SUBDIRS on the set of directories in projects that have a


@@ -267,6 +273,11 @@ AC_CACHE_CHECK([type of operating system we're going to host on],
     llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
     llvm_cv_os_type="DragonFly"
     llvm_cv_platform_type="Unix" ;;
     llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
     llvm_cv_os_type="DragonFly"
     llvm_cv_platform_type="Unix" ;;

+  *-*-bitrig*)
+    llvm_cv_link_all_option="-Wl,--whole-archive"
+    llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
+    llvm_cv_os_type="Bitrig"
+    llvm_cv_platform_type="Unix" ;;

   *-*-hpux*)
     llvm_cv_link_all_option="-Wl,--whole-archive"
     llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
   *-*-hpux*)
     llvm_cv_link_all_option="-Wl,--whole-archive"
     llvm_cv_no_link_all_option="-Wl,--no-whole-archive"


@@ -347,6 +358,8 @@ AC_CACHE_CHECK([type of operating system we're going to target],
     llvm_cv_target_os_type="NetBSD" ;;
   *-*-dragonfly*)
     llvm_cv_target_os_type="DragonFly" ;;
     llvm_cv_target_os_type="NetBSD" ;;
   *-*-dragonfly*)
     llvm_cv_target_os_type="DragonFly" ;;

+  *-*-bitrig*)
+    llvm_cv_target_os_type="Bitrig" ;;

   *-*-hpux*)
     llvm_cv_target_os_type="HP-UX" ;;
   *-*-interix*)
   *-*-hpux*)
     llvm_cv_target_os_type="HP-UX" ;;
   *-*-interix*)


@@ -369,6 +382,8 @@ AC_CACHE_CHECK([type of operating system we're going to target],
     llvm_cv_target_os_type="NativeClient" ;;
   *-unknown-eabi*)
     llvm_cv_target_os_type="Freestanding" ;;
     llvm_cv_target_os_type="NativeClient" ;;
   *-unknown-eabi*)
     llvm_cv_target_os_type="Freestanding" ;;

+  *-*-ps4)
+    llvm_cv_target_os_type="PS4" ;;

   *)
     llvm_cv_target_os_type="Unknown" ;;
 esac])
   *)
     llvm_cv_target_os_type="Unknown" ;;
 esac])


@@ -416,6 +431,7 @@ AC_CACHE_CHECK([target architecture],[llvm_cv_target_arch],
   arm64*-*)               llvm_cv_target_arch="AArch64" ;;
   arm*-*)                 llvm_cv_target_arch="ARM" ;;
   aarch64*-*)             llvm_cv_target_arch="AArch64" ;;
   arm64*-*)               llvm_cv_target_arch="AArch64" ;;
   arm*-*)                 llvm_cv_target_arch="ARM" ;;
   aarch64*-*)             llvm_cv_target_arch="AArch64" ;;

+  avr-*)                  llvm_cv_target_arch="AVR" ;;

   mips-* | mips64-*)      llvm_cv_target_arch="Mips" ;;
   mipsel-* | mips64el-*)  llvm_cv_target_arch="Mips" ;;
   xcore-*)                llvm_cv_target_arch="XCore" ;;
   mips-* | mips64-*)      llvm_cv_target_arch="Mips" ;;
   mipsel-* | mips64el-*)  llvm_cv_target_arch="Mips" ;;
   xcore-*)                llvm_cv_target_arch="XCore" ;;


@@ -423,6 +439,7 @@ AC_CACHE_CHECK([target architecture],[llvm_cv_target_arch],
   hexagon-*)              llvm_cv_target_arch="Hexagon" ;;
   nvptx-*)                llvm_cv_target_arch="NVPTX" ;;
   s390x-*)                llvm_cv_target_arch="SystemZ" ;;
   hexagon-*)              llvm_cv_target_arch="Hexagon" ;;
   nvptx-*)                llvm_cv_target_arch="NVPTX" ;;
   s390x-*)                llvm_cv_target_arch="SystemZ" ;;

+  wasm*-*)                llvm_cv_target_arch="WebAssembly" ;;

   *)                      llvm_cv_target_arch="Unknown" ;;
 esac])
 
   *)                      llvm_cv_target_arch="Unknown" ;;
 esac])
 


@@ -452,12 +469,14 @@ case $host in
   arm64*-*)               host_arch="AArch64" ;;
   arm*-*)                 host_arch="ARM" ;;
   aarch64*-*)             host_arch="AArch64" ;;
   arm64*-*)               host_arch="AArch64" ;;
   arm*-*)                 host_arch="ARM" ;;
   aarch64*-*)             host_arch="AArch64" ;;

+  avr-*)                  host_arch="AVR" ;;

   mips-* | mips64-*)      host_arch="Mips" ;;
   mipsel-* | mips64el-*)  host_arch="Mips" ;;
   xcore-*)                host_arch="XCore" ;;
   msp430-*)               host_arch="MSP430" ;;
   hexagon-*)              host_arch="Hexagon" ;;
   s390x-*)                host_arch="SystemZ" ;;
   mips-* | mips64-*)      host_arch="Mips" ;;
   mipsel-* | mips64el-*)  host_arch="Mips" ;;
   xcore-*)                host_arch="XCore" ;;
   msp430-*)               host_arch="MSP430" ;;
   hexagon-*)              host_arch="Hexagon" ;;
   s390x-*)                host_arch="SystemZ" ;;

+  wasm*-*)                host_arch="WebAssembly" ;;

   *)                      host_arch="Unknown" ;;
 esac
 
   *)                      host_arch="Unknown" ;;
 esac
 


@@ -692,8 +711,10 @@ AC_ARG_ENABLE(assertions,AS_HELP_STRING(
   --enable-assertions,[Compile with assertion checks enabled (default is YES)]),, enableval="yes")
 if test ${enableval} = "yes" ; then
   AC_SUBST(DISABLE_ASSERTIONS,[[]])
   --enable-assertions,[Compile with assertion checks enabled (default is YES)]),, enableval="yes")
 if test ${enableval} = "yes" ; then
   AC_SUBST(DISABLE_ASSERTIONS,[[]])

+  assertions_enabled="yes"

 else
   AC_SUBST(DISABLE_ASSERTIONS,[[DISABLE_ASSERTIONS=1]])
 else
   AC_SUBST(DISABLE_ASSERTIONS,[[DISABLE_ASSERTIONS=1]])

+  assertions_enabled="no"

 fi
 
 dnl --enable-werror : check whether we want Werror on by default
 fi
 
 dnl --enable-werror : check whether we want Werror on by default


@@ -717,6 +738,28 @@ else
   AC_SUBST(EXPENSIVE_CHECKS,[[no]])
 fi
 
   AC_SUBST(EXPENSIVE_CHECKS,[[no]])
 fi
 

+dnl --enable-abi-breaking-checks : decide whether we should compile in asserts and
+dnl checks that make the build ABI incompatible with an llvm built without these
+dnl checks enabled.
+AC_ARG_ENABLE(abi-breaking-checks,AS_HELP_STRING(
+  --enable-abi-breaking-checks,[Compile with abi-breaking asserts support (default is with-asserts)]),, enableval="with-asserts")
+case "$enableval" in
+  with-asserts)  if test ${assertions_enabled} = "yes" ; then
+                   AC_DEFINE([LLVM_ENABLE_ABI_BREAKING_CHECKS],[1],[Define to enable checks that alter the LLVM C++ ABI])
+                   AC_SUBST(ENABLE_ABI_BREAKING_CHECKS,[1])
+                 else
+                   AC_SUBST(ENABLE_ABI_BREAKING_CHECKS,[0])
+                fi ;;
+  yes)
+                 AC_DEFINE([LLVM_ENABLE_ABI_BREAKING_CHECKS],[1],[Define to enable checks that alter the LLVM C++ ABI])
+                 AC_SUBST(ENABLE_ABI_BREAKING_CHECKS,[1])
+                 ;;
+  no)
+                 AC_SUBST(ENABLE_ABI_BREAKING_CHECKS,[0])
+                 ;;
+  *) AC_MSG_ERROR([Invalid setting for --enable-abi-breaking-checks.  Use "with-asserts", "yes" or "no"])
+esac
+

 dnl --enable-debug-runtime : should runtime libraries have debug symbols?
 AC_ARG_ENABLE(debug-runtime,
    AS_HELP_STRING(--enable-debug-runtime,[Build runtime libs with debug symbols (default is NO)]),,enableval=no)
 dnl --enable-debug-runtime : should runtime libraries have debug symbols?
 AC_ARG_ENABLE(debug-runtime,
    AS_HELP_STRING(--enable-debug-runtime,[Build runtime libs with debug symbols (default is NO)]),,enableval=no)


@@ -760,12 +803,14 @@ else
     PowerPC)     AC_SUBST(TARGET_HAS_JIT,1) ;;
     x86_64)      AC_SUBST(TARGET_HAS_JIT,1) ;;
     ARM)         AC_SUBST(TARGET_HAS_JIT,1) ;;
     PowerPC)     AC_SUBST(TARGET_HAS_JIT,1) ;;
     x86_64)      AC_SUBST(TARGET_HAS_JIT,1) ;;
     ARM)         AC_SUBST(TARGET_HAS_JIT,1) ;;

+    AVR)         AC_SUBST(TARGET_HAS_JIT,0) ;;

     Mips)        AC_SUBST(TARGET_HAS_JIT,1) ;;
     XCore)       AC_SUBST(TARGET_HAS_JIT,0) ;;
     MSP430)      AC_SUBST(TARGET_HAS_JIT,0) ;;
     Hexagon)     AC_SUBST(TARGET_HAS_JIT,0) ;;
     NVPTX)       AC_SUBST(TARGET_HAS_JIT,0) ;;
     SystemZ)     AC_SUBST(TARGET_HAS_JIT,1) ;;
     Mips)        AC_SUBST(TARGET_HAS_JIT,1) ;;
     XCore)       AC_SUBST(TARGET_HAS_JIT,0) ;;
     MSP430)      AC_SUBST(TARGET_HAS_JIT,0) ;;
     Hexagon)     AC_SUBST(TARGET_HAS_JIT,0) ;;
     NVPTX)       AC_SUBST(TARGET_HAS_JIT,0) ;;
     SystemZ)     AC_SUBST(TARGET_HAS_JIT,1) ;;

+    WebAssembly) AC_SUBST(TARGET_HAS_JIT,0) ;;

     *)           AC_SUBST(TARGET_HAS_JIT,0) ;;
   esac
 fi
     *)           AC_SUBST(TARGET_HAS_JIT,0) ;;
   esac
 fi


@@ -792,11 +837,139 @@ AC_ARG_ENABLE(doxygen,
                              enableval=default)
 case "$enableval" in
   yes) AC_SUBST(ENABLE_DOXYGEN,[1]) ;;
                              enableval=default)
 case "$enableval" in
   yes) AC_SUBST(ENABLE_DOXYGEN,[1]) ;;

-  no)  AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
-  default) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;
+  no|default) AC_SUBST(ENABLE_DOXYGEN,[0]) ;;

   *) AC_MSG_ERROR([Invalid setting for --enable-doxygen. Use "yes" or "no"]) ;;
 esac
 
   *) AC_MSG_ERROR([Invalid setting for --enable-doxygen. Use "yes" or "no"]) ;;
 esac
 

+dnl Allow enablement of doxygen search engine
+AC_ARG_ENABLE(doxygen-search,
+              AS_HELP_STRING([--enable-doxygen-search],
+                             [Enable doxygen search support (default is NO)]),,
+                             enableval=default)
+ENABLE_DOXYGEN_SEARCH="$enableval"
+
+case "$enableval" in
+  yes|no|default) ;;
+  *) AC_MSG_ERROR([Invalid setting for --enable-doxygen-search. Use "yes" or "no"]) ;;
+esac
+
+AC_ARG_ENABLE(doxygen-external-search,
+              AS_HELP_STRING([--enable-doxygen-external-search],
+                             [Enable doxygen exteranl search (default is NO)]),,
+                             enableval=default)
+ENABLE_DOXYGEN_EXTERNAL_SEARCH="$enableval"
+
+case "$enableval" in
+  yes)
+    dnl To match with the CMake behavior, enable doxygen when
+    dnl --enable-doxygen-external-search is enabled.
+    case "$ENABLE_DOXYGEN_SEARCH" in
+      yes|default) ENABLE_DOXYGEN_SEARCH="yes" ;;
+      no) AC_MSG_ERROR([The option --enable-doxygen-external-search requires --enable-doxygen-search]) ;;
+    esac
+    ;;
+  no|default) ;;
+  *) AC_MSG_ERROR([Invalid setting for --enable-doxygen-external-search. Use "yes" or "no"]) ;;
+esac
+
+AC_ARG_WITH(doxygen-search-engine-url,
+            AS_HELP_STRING([--with-doxygen-search-engine-url],
+                           [Specify the external search engine for doxygen]),,)
+WITH_DOXYGEN_SEARCH_ENGINE_URL="$withval"
+
+AC_ARG_WITH(doxygen-search-mappings,
+            AS_HELP_STRING([--with-doxygen-search-mappings],
+                           [Specify the extra search mapping for doxygen]),,)
+WITH_DOXYGEN_SEARCH_MAPPINGS="$withval"
+
+case "$ENABLE_DOXYGEN_SEARCH" in
+  yes)
+    if test "$ENABLE_DOXYGEN" = "0" ; then
+      AC_MSG_ERROR([The option --enable-doxygen-search requires --enable-doxygen.])
+    fi
+
+    AC_SUBST(enable_searchengine,[YES])
+
+    case "$ENABLE_DOXYGEN_EXTERNAL_SEARCH" in
+      yes)
+        AC_SUBST(enable_external_search,[YES])
+        AC_SUBST(enable_server_based_search,[YES])
+        AC_SUBST(searchengine_url,["$WITH_DOXYGEN_SEARCH_ENGINE_URL"])
+        AC_SUBST(extra_search_mappings,["$WITH_DOXYGEN_SEARCH_MAPPINGS"])
+        ;;
+
+      no|default)
+        AC_SUBST(enable_external_search,[NO])
+        AC_SUBST(enable_server_based_search,[NO])
+        AC_SUBST(searchengine_url,[])
+        AC_SUBST(extra_search_mappings,[])
+        ;;
+    esac
+    ;;
+
+  no|default)
+    AC_SUBST(enable_searchengine,[NO])
+    AC_SUBST(searchengine_url,[])
+    AC_SUBST(enable_server_based_search,[NO])
+    AC_SUBST(enable_external_search,[NO])
+    AC_SUBST(extra_search_mappings,[])
+    ;;
+
+  *)
+    AC_MSG_ERROR([Invalid setting for --enable-doxygen-search. Use "yes" or "no"])
+    ;;
+esac
+
+dnl Allow enablement of doxygen generated Qt help files
+AC_ARG_ENABLE(doxygen-qt-help,
+             AS_HELP_STRING([--enable-doxygen-qt-help],
+                            [Build Qt help files (default is NO)]),,
+                            enableval=default)
+case "$enableval" in
+  yes)
+    if test "$ENABLE_DOXYGEN" = "0" ; then
+      AC_MSG_ERROR([The option --enable-doxygen-qt-help requires --enable-doxygen.])
+    fi
+
+    AC_PATH_PROG(QHELPGENERATOR, [qhelpgenerator], [qhelpgenerator])
+
+    dnl Qt help file for llvm doxygen documentation
+    AC_SUBST(llvm_doxygen_generate_qhp,[YES])
+    AC_SUBST(llvm_doxygen_qch_filename,[org.llvm.qch])
+    AC_SUBST(llvm_doxygen_qhp_namespace,[org.llvm])
+    AC_SUBST(llvm_doxygen_qhelpgenerator_path,["$QHELPGENERATOR"])
+    AC_SUBST(llvm_doxygen_qhp_cust_filter_name,["$PACKAGE_STRING"])
+    AC_SUBST(llvm_doxygen_qhp_cust_filter_attrs,["$PACKAGE_NAME,$PACKAGE_VERSION"])
+
+    dnl Qt help file for clang doxygen documentation
+    AC_SUBST(clang_doxygen_generate_qhp,[YES])
+    AC_SUBST(clang_doxygen_qch_filename,[org.llvm.clang.qch])
+    AC_SUBST(clang_doxygen_qhp_namespace,[org.llvm.clang])
+    AC_SUBST(clang_doxygen_qhelpgenerator_path,["$QHELPGENERATOR"])
+    AC_SUBST(clang_doxygen_qhp_cust_filter_name,["Clang $PACKAGE_VERSION"])
+    AC_SUBST(clang_doxygen_qhp_cust_filter_attrs,["Clang,$PACKAGE_VERSION"])
+    ;;
+
+  no|default)
+    AC_SUBST(llvm_doxygen_generate_qhp,[NO])
+    AC_SUBST(llvm_doxygen_qch_filename,[])
+    AC_SUBST(llvm_doxygen_qhp_namespace,[])
+    AC_SUBST(llvm_doxygen_qhelpgenerator_path,[])
+    AC_SUBST(llvm_doxygen_qhp_cust_filter_name,[])
+    AC_SUBST(llvm_doxygen_qhp_cust_filter_attrs,[])
+
+    AC_SUBST(clang_doxygen_generate_qhp,[NO])
+    AC_SUBST(clang_doxygen_qch_filename,[])
+    AC_SUBST(clang_doxygen_qhp_namespace,[])
+    AC_SUBST(clang_doxygen_qhelpgenerator_path,[])
+    AC_SUBST(clang_doxygen_qhp_cust_filter_name,["Clang $PACKAGE_VERSION"])
+    AC_SUBST(clang_doxygen_qhp_cust_filter_attrs,["Clang,$PACKAGE_VERSION"])
+    ;;
+
+  *)
+    AC_MSG_ERROR([Invalid setting for --enable-doxygen-qt-help. Use "yes" or "no"]) ;;
+esac
+

 dnl Allow disablement of threads
 AC_ARG_ENABLE(threads,
               AS_HELP_STRING([--enable-threads],
 dnl Allow disablement of threads
 AC_ARG_ENABLE(threads,
               AS_HELP_STRING([--enable-threads],


@@ -923,7 +1096,7 @@ if test "$llvm_cv_enable_crash_overrides" = "yes" ; then
 fi
 
 dnl List all possible targets
 fi
 
 dnl List all possible targets

-ALL_TARGETS="X86 Sparc PowerPC ARM AArch64 Mips XCore MSP430 CppBackend NVPTX Hexagon SystemZ R600"
+ALL_TARGETS="X86 Sparc PowerPC ARM AArch64 Mips XCore MSP430 CppBackend NVPTX Hexagon SystemZ AMDGPU BPF"

 AC_SUBST(ALL_TARGETS,$ALL_TARGETS)
 
 dnl Allow specific targets to be specified for building (or not)
 AC_SUBST(ALL_TARGETS,$ALL_TARGETS)
 
 dnl Allow specific targets to be specified for building (or not)


@@ -931,7 +1104,7 @@ TARGETS_TO_BUILD=""
 AC_ARG_ENABLE([targets],AS_HELP_STRING([--enable-targets],
     [Build specific host targets: all or target1,target2,... Valid targets are:
      host, x86, x86_64, sparc, powerpc, arm64, arm, aarch64, mips, hexagon,
 AC_ARG_ENABLE([targets],AS_HELP_STRING([--enable-targets],
     [Build specific host targets: all or target1,target2,... Valid targets are:
      host, x86, x86_64, sparc, powerpc, arm64, arm, aarch64, mips, hexagon,

-     xcore, msp430, nvptx, systemz, r600, and cpp (default=all)]),,
+     xcore, msp430, nvptx, systemz, r600, bpf, wasm, and cpp (default=all)]),,

     enableval=all)
 if test "$enableval" = host-only ; then
   enableval=host
     enableval=all)
 if test "$enableval" = host-only ; then
   enableval=host


@@ -947,6 +1120,7 @@ case "$enableval" in
         aarch64)  TARGETS_TO_BUILD="AArch64 $TARGETS_TO_BUILD" ;;
         arm64)    TARGETS_TO_BUILD="AArch64 $TARGETS_TO_BUILD" ;;
         arm)      TARGETS_TO_BUILD="ARM $TARGETS_TO_BUILD" ;;
         aarch64)  TARGETS_TO_BUILD="AArch64 $TARGETS_TO_BUILD" ;;
         arm64)    TARGETS_TO_BUILD="AArch64 $TARGETS_TO_BUILD" ;;
         arm)      TARGETS_TO_BUILD="ARM $TARGETS_TO_BUILD" ;;

+        bpf)      TARGETS_TO_BUILD="BPF $TARGETS_TO_BUILD" ;;

         mips)     TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
         mipsel)   TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
         mips64)   TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
         mips)     TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
         mipsel)   TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
         mips64)   TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;


@@ -957,7 +1131,9 @@ case "$enableval" in
         hexagon)  TARGETS_TO_BUILD="Hexagon $TARGETS_TO_BUILD" ;;
         nvptx)    TARGETS_TO_BUILD="NVPTX $TARGETS_TO_BUILD" ;;
         systemz)  TARGETS_TO_BUILD="SystemZ $TARGETS_TO_BUILD" ;;
         hexagon)  TARGETS_TO_BUILD="Hexagon $TARGETS_TO_BUILD" ;;
         nvptx)    TARGETS_TO_BUILD="NVPTX $TARGETS_TO_BUILD" ;;
         systemz)  TARGETS_TO_BUILD="SystemZ $TARGETS_TO_BUILD" ;;

-        r600)     TARGETS_TO_BUILD="R600 $TARGETS_TO_BUILD" ;;
+        amdgpu)   TARGETS_TO_BUILD="AMDGPU $TARGETS_TO_BUILD" ;;
+        r600)     TARGETS_TO_BUILD="AMDGPU $TARGETS_TO_BUILD" ;;
+        wasm)     TARGETS_TO_BUILD="WebAssembly $TARGETS_TO_BUILD" ;;

         host) case "$llvm_cv_target_arch" in
             x86)         TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
             x86_64)      TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
         host) case "$llvm_cv_target_arch" in
             x86)         TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
             x86_64)      TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;


@@ -971,6 +1147,7 @@ case "$enableval" in
             Hexagon)     TARGETS_TO_BUILD="Hexagon $TARGETS_TO_BUILD" ;;
             NVPTX)       TARGETS_TO_BUILD="NVPTX $TARGETS_TO_BUILD" ;;
             SystemZ)     TARGETS_TO_BUILD="SystemZ $TARGETS_TO_BUILD" ;;
             Hexagon)     TARGETS_TO_BUILD="Hexagon $TARGETS_TO_BUILD" ;;
             NVPTX)       TARGETS_TO_BUILD="NVPTX $TARGETS_TO_BUILD" ;;
             SystemZ)     TARGETS_TO_BUILD="SystemZ $TARGETS_TO_BUILD" ;;

+            WebAssembly) TARGETS_TO_BUILD="WebAssembly $TARGETS_TO_BUILD" ;;

             *)       AC_MSG_ERROR([Can not set target to build]) ;;
           esac ;;
         *) AC_MSG_ERROR([Unrecognized target $a_target]) ;;
             *)       AC_MSG_ERROR([Can not set target to build]) ;;
           esac ;;
         *) AC_MSG_ERROR([Unrecognized target $a_target]) ;;


@@ -1163,6 +1340,13 @@ AC_ARG_WITH(default-sysroot,
 AC_DEFINE_UNQUOTED(DEFAULT_SYSROOT,"$withval",
                    [Default <path> to all compiler invocations for --sysroot=<path>.])
 
 AC_DEFINE_UNQUOTED(DEFAULT_SYSROOT,"$withval",
                    [Default <path> to all compiler invocations for --sysroot=<path>.])
 

+AC_ARG_WITH(clang-default-openmp-runtime,
+  AS_HELP_STRING([--with-clang-default-openmp-runtime],
+    [The default OpenMP runtime for Clang.]),,
+    withval="libomp")
+AC_DEFINE_UNQUOTED(CLANG_DEFAULT_OPENMP_RUNTIME,"$withval",
+                   [Default OpenMP runtime used by -fopenmp.])
+

 dnl Allow linking of LLVM with GPLv3 binutils code.
 AC_ARG_WITH(binutils-include,
   AS_HELP_STRING([--with-binutils-include],
 dnl Allow linking of LLVM with GPLv3 binutils code.
 AC_ARG_WITH(binutils-include,
   AS_HELP_STRING([--with-binutils-include],


@@ -1368,25 +1552,31 @@ AC_MSG_RESULT([ok])
 
 dnl Check optional compiler flags.
 AC_MSG_CHECKING([optional compiler flags])
 
 dnl Check optional compiler flags.
 AC_MSG_CHECKING([optional compiler flags])

-CXX_FLAG_CHECK(NO_VARIADIC_MACROS, [-Wno-variadic-macros])
-CXX_FLAG_CHECK(NO_MISSING_FIELD_INITIALIZERS, [-Wno-missing-field-initializers])
-CXX_FLAG_CHECK(COVERED_SWITCH_DEFAULT, [-Wcovered-switch-default])
-
-dnl GCC's potential uninitialized use analysis is weak and presents lots of
-dnl false positives, so disable it.
-NO_UNINITIALIZED=
-NO_MAYBE_UNINITIALIZED=
-if test "$GXX" = "yes"
-then
-  CXX_FLAG_CHECK(NO_MAYBE_UNINITIALIZED, [-Wno-maybe-uninitialized])
-  dnl gcc 4.7 introduced -Wmaybe-uninitialized to distinguish cases which are
-  dnl known to be uninitialized from cases which might be uninitialized.  We
-  dnl still want to catch the first kind of errors.
-  if test -z "$NO_MAYBE_UNINITIALIZED"
-  then
-    CXX_FLAG_CHECK(NO_UNINITIALIZED, [-Wno-uninitialized])
-  fi
-fi
+case "$llvm_cv_cxx_compiler" in
+  clang)
+    CXX_FLAG_CHECK(NO_VARIADIC_MACROS, [-Wno-variadic-macros])
+    CXX_FLAG_CHECK(MISSING_FIELD_INITIALIZERS, [-Wmissing-field-initializers])
+    CXX_FLAG_CHECK(COVERED_SWITCH_DEFAULT, [-Wcovered-switch-default])
+    ;;
+  gcc)
+    dnl If we're using gcc check for -Wno-missing-field-initializers as gcc will warn
+    dnl on plain open brace initializations. clang won't so use -Wmissing-field-initializers
+    dnl there.
+    CXX_FLAG_CHECK(MISSING_FIELD_INITIALIZERS, [-Wno-missing-field-initializers])
+    CXX_FLAG_CHECK(NO_VARIADIC_MACROS, [-Wno-variadic-macros])
+    CXX_FLAG_CHECK(COVERED_SWITCH_DEFAULT, [-Wcovered-switch-default])
+    CXX_FLAG_CHECK(NO_MAYBE_UNINITIALIZED, [-Wno-maybe-uninitialized])
+    dnl gcc 4.7 introduced -Wmaybe-uninitialized to distinguish cases which are
+    dnl known to be uninitialized from cases which might be uninitialized.  We
+    dnl still want to catch the first kind of errors.
+    if test -z "$NO_MAYBE_UNINITIALIZED"
+    then
+      CXX_FLAG_CHECK(NO_UNINITIALIZED, [-Wno-uninitialized])
+    fi
+    ;;
+  unknown)
+    ;;
+esac

 
 dnl Check for misbehaving -Wcomment (gcc-4.7 has this) and maybe add
 dnl -Wno-comment to the flags.
 
 dnl Check for misbehaving -Wcomment (gcc-4.7 has this) and maybe add
 dnl -Wno-comment to the flags.


@@ -1407,7 +1597,7 @@ int main() { return 0; }
 AC_SUBST(NO_COMMENT, [$no_comment])
 CXXFLAGS="$llvm_cv_old_cxxflags"
 
 AC_SUBST(NO_COMMENT, [$no_comment])
 CXXFLAGS="$llvm_cv_old_cxxflags"
 

-AC_MSG_RESULT([$NO_VARIADIC_MACROS $NO_MISSING_FIELD_INITIALIZERS $COVERED_SWITCH_DEFAULT $NO_UNINITIALIZED $NO_MAYBE_UNINITIALIZED $NO_COMMENT])
+AC_MSG_RESULT([$NO_VARIADIC_MACROS $MISSING_FIELD_INITIALIZERS $COVERED_SWITCH_DEFAULT $NO_UNINITIALIZED $NO_MAYBE_UNINITIALIZED $NO_COMMENT])

 
 AC_ARG_WITH([python],
             [AS_HELP_STRING([--with-python], [path to python])],
 
 AC_ARG_WITH([python],
             [AS_HELP_STRING([--with-python], [path to python])],


@@ -1421,23 +1611,23 @@ else
     AC_MSG_WARN([specified python ($PYTHON) is not usable, searching path])
   fi
 
     AC_MSG_WARN([specified python ($PYTHON) is not usable, searching path])
   fi
 

-  AC_PATH_PROG([PYTHON], [python python2 python26],
+  AC_PATH_PROG([PYTHON], [python python2 python27],

                [AC_MSG_RESULT([not found])
                [AC_MSG_RESULT([not found])

-                AC_MSG_ERROR([could not find python 2.5 or higher])])
+                AC_MSG_ERROR([could not find python 2.7 or higher])])

 fi
 
 fi
 

-AC_MSG_CHECKING([for python >= 2.5])
+AC_MSG_CHECKING([for python >= 2.7])

 ac_python_version=`$PYTHON -V 2>&1 | cut -d' ' -f2`
 ac_python_version_major=`echo $ac_python_version | cut -d'.' -f1`
 ac_python_version_minor=`echo $ac_python_version | cut -d'.' -f2`
 ac_python_version_patch=`echo $ac_python_version | cut -d'.' -f3`
 if test "$ac_python_version_major" -gt "2" || \
    (test "$ac_python_version_major" -eq "2" && \
 ac_python_version=`$PYTHON -V 2>&1 | cut -d' ' -f2`
 ac_python_version_major=`echo $ac_python_version | cut -d'.' -f1`
 ac_python_version_minor=`echo $ac_python_version | cut -d'.' -f2`
 ac_python_version_patch=`echo $ac_python_version | cut -d'.' -f3`
 if test "$ac_python_version_major" -gt "2" || \
    (test "$ac_python_version_major" -eq "2" && \

-    test "$ac_python_version_minor" -ge "5") ; then
+    test "$ac_python_version_minor" -ge "7") ; then

   AC_MSG_RESULT([$PYTHON ($ac_python_version)])
 else
   AC_MSG_RESULT([not found])
   AC_MSG_RESULT([$PYTHON ($ac_python_version)])
 else
   AC_MSG_RESULT([not found])

-  AC_MSG_FAILURE([found python $ac_python_version ($PYTHON); required >= 2.5])
+  AC_MSG_FAILURE([found python $ac_python_version ($PYTHON); required >= 2.7])

 fi
 
 dnl===-----------------------------------------------------------------------===
 fi
 
 dnl===-----------------------------------------------------------------------===


@@ -1448,9 +1638,12 @@ dnl===-----------------------------------------------------------------------===
 
 AC_CHECK_LIB(m,sin)
 if test "$llvm_cv_os_type" = "MingW" ; then
 
 AC_CHECK_LIB(m,sin)
 if test "$llvm_cv_os_type" = "MingW" ; then

-  AC_CHECK_LIB(imagehlp, main)
+  dnl mingw-gcc's driver doesn't imply -lole32 by default so we may need this
+  dnl when being built with gcc for bootstrapping purposes.
+  AC_CHECK_LIB(ole32, main)

   AC_CHECK_LIB(psapi, main)
   AC_CHECK_LIB(shell32, main)
   AC_CHECK_LIB(psapi, main)
   AC_CHECK_LIB(shell32, main)

+  AC_CHECK_LIB(uuid,main)

 fi
 
 dnl dlopen() is required for plugin support.
 fi
 
 dnl dlopen() is required for plugin support.


@@ -1533,11 +1726,11 @@ AC_ARG_WITH(oprofile,
             AC_SEARCH_LIBS(bfd_init, bfd, [], [])
             AC_SEARCH_LIBS(op_open_agent, opagent, [], [
               echo "Error! You need to have libopagent around."
             AC_SEARCH_LIBS(bfd_init, bfd, [], [])
             AC_SEARCH_LIBS(op_open_agent, opagent, [], [
               echo "Error! You need to have libopagent around."

-              exit -1
+              exit 1

             ])
             AC_CHECK_HEADER([opagent.h], [], [
               echo "Error! You need to have opagent.h around."
             ])
             AC_CHECK_HEADER([opagent.h], [], [
               echo "Error! You need to have opagent.h around."

-              exit -1
+              exit 1

               ])
           fi ;;
         *)
               ])
           fi ;;
         *)


@@ -1606,7 +1799,6 @@ dnl Generally we're looking for POSIX headers.
 AC_HEADER_DIRENT
 AC_HEADER_MMAP_ANONYMOUS
 AC_HEADER_STAT
 AC_HEADER_DIRENT
 AC_HEADER_MMAP_ANONYMOUS
 AC_HEADER_STAT

-AC_HEADER_SYS_WAIT

 AC_HEADER_TIME
 
 AC_LANG_PUSH([C++])
 AC_HEADER_TIME
 
 AC_LANG_PUSH([C++])


@@ -1618,7 +1810,6 @@ AC_LANG_POP([C++])
 
 AC_CHECK_HEADERS([dlfcn.h execinfo.h fcntl.h inttypes.h link.h])
 AC_CHECK_HEADERS([malloc.h setjmp.h signal.h stdint.h termios.h unistd.h])
 
 AC_CHECK_HEADERS([dlfcn.h execinfo.h fcntl.h inttypes.h link.h])
 AC_CHECK_HEADERS([malloc.h setjmp.h signal.h stdint.h termios.h unistd.h])

-AC_CHECK_HEADERS([utime.h])

 AC_CHECK_HEADERS([sys/mman.h sys/param.h sys/resource.h sys/time.h sys/uio.h])
 AC_CHECK_HEADERS([sys/ioctl.h malloc/malloc.h mach/mach.h])
 AC_CHECK_HEADERS([valgrind/valgrind.h])
 AC_CHECK_HEADERS([sys/mman.h sys/param.h sys/resource.h sys/time.h sys/uio.h])
 AC_CHECK_HEADERS([sys/ioctl.h malloc/malloc.h mach/mach.h])
 AC_CHECK_HEADERS([valgrind/valgrind.h])


@@ -1690,18 +1881,15 @@ dnl=== SECTION 8: Check for specific functions needed
 dnl===
 dnl===-----------------------------------------------------------------------===
 
 dnl===
 dnl===-----------------------------------------------------------------------===
 

-AC_CHECK_FUNCS([backtrace ceilf floorf roundf rintf nearbyintf getcwd ])
-AC_CHECK_FUNCS([powf fmodf strtof round ])
-AC_CHECK_FUNCS([log log2 log10 exp exp2])
+AC_CHECK_FUNCS([backtrace getcwd ])

 AC_CHECK_FUNCS([getpagesize getrusage getrlimit setrlimit gettimeofday ])
 AC_CHECK_FUNCS([isatty mkdtemp mkstemp ])
 AC_CHECK_FUNCS([mktemp posix_spawn pread realpath sbrk setrlimit ])
 AC_CHECK_FUNCS([strerror strerror_r setenv ])
 AC_CHECK_FUNCS([strtoll strtoq sysconf malloc_zone_statistics ])
 AC_CHECK_FUNCS([getpagesize getrusage getrlimit setrlimit gettimeofday ])
 AC_CHECK_FUNCS([isatty mkdtemp mkstemp ])
 AC_CHECK_FUNCS([mktemp posix_spawn pread realpath sbrk setrlimit ])
 AC_CHECK_FUNCS([strerror strerror_r setenv ])
 AC_CHECK_FUNCS([strtoll strtoq sysconf malloc_zone_statistics ])

-AC_CHECK_FUNCS([setjmp longjmp sigsetjmp siglongjmp writev])
+AC_CHECK_FUNCS([setjmp longjmp writev])

 AC_CHECK_FUNCS([futimes futimens])
 AC_C_PRINTF_A
 AC_CHECK_FUNCS([futimes futimens])
 AC_C_PRINTF_A

-AC_FUNC_RAND48

 
 dnl Check for arc4random accessible via AC_INCLUDES_DEFAULT.
 AC_CHECK_DECLS([arc4random])
 
 dnl Check for arc4random accessible via AC_INCLUDES_DEFAULT.
 AC_CHECK_DECLS([arc4random])


@@ -1714,7 +1902,9 @@ if test "$llvm_cv_os_type" = "MingW" ; then
   AC_CHECK_LIB(gcc,_alloca,AC_DEFINE([HAVE__ALLOCA],[1],[Have host's _alloca]))
   AC_CHECK_LIB(gcc,__alloca,AC_DEFINE([HAVE___ALLOCA],[1],[Have host's __alloca]))
   AC_CHECK_LIB(gcc,__chkstk,AC_DEFINE([HAVE___CHKSTK],[1],[Have host's __chkstk]))
   AC_CHECK_LIB(gcc,_alloca,AC_DEFINE([HAVE__ALLOCA],[1],[Have host's _alloca]))
   AC_CHECK_LIB(gcc,__alloca,AC_DEFINE([HAVE___ALLOCA],[1],[Have host's __alloca]))
   AC_CHECK_LIB(gcc,__chkstk,AC_DEFINE([HAVE___CHKSTK],[1],[Have host's __chkstk]))

+  AC_CHECK_LIB(gcc,__chkstk_ms,AC_DEFINE([HAVE___CHKSTK_MS],[1],[Have host's __chkstk_ms]))

   AC_CHECK_LIB(gcc,___chkstk,AC_DEFINE([HAVE____CHKSTK],[1],[Have host's ___chkstk]))
   AC_CHECK_LIB(gcc,___chkstk,AC_DEFINE([HAVE____CHKSTK],[1],[Have host's ___chkstk]))

+  AC_CHECK_LIB(gcc,___chkstk_ms,AC_DEFINE([HAVE____CHKSTK_MS],[1],[Have host's ___chkstk_ms]))

 
   AC_CHECK_LIB(gcc,__ashldi3,AC_DEFINE([HAVE___ASHLDI3],[1],[Have host's __ashldi3]))
   AC_CHECK_LIB(gcc,__ashrdi3,AC_DEFINE([HAVE___ASHRDI3],[1],[Have host's __ashrdi3]))
 
   AC_CHECK_LIB(gcc,__ashldi3,AC_DEFINE([HAVE___ASHLDI3],[1],[Have host's __ashldi3]))
   AC_CHECK_LIB(gcc,__ashrdi3,AC_DEFINE([HAVE___ASHRDI3],[1],[Have host's __ashrdi3]))


@@ -1754,11 +1944,6 @@ if test "$llvm_cv_os_type" = "MingW" ; then
   AC_DEFINE_UNQUOTED([WIN32_ELMCB_PCSTR],$llvm_cv_win32_elmcb_pcstr,[Type of 1st arg on ELM Callback])
 fi
 
   AC_DEFINE_UNQUOTED([WIN32_ELMCB_PCSTR],$llvm_cv_win32_elmcb_pcstr,[Type of 1st arg on ELM Callback])
 fi
 

-dnl Check for variations in the Standard C++ library and STL. These macros are
-dnl provided by LLVM in the autoconf/m4 directory.
-AC_FUNC_ISNAN
-AC_FUNC_ISINF
-

 dnl Check for mmap support.We also need to know if /dev/zero is required to
 dnl be opened for allocating RWX memory.
 dnl Make sure we aren't attempting to configure for an unknown system
 dnl Check for mmap support.We also need to know if /dev/zero is required to
 dnl be opened for allocating RWX memory.
 dnl Make sure we aren't attempting to configure for an unknown system


@@ -1994,7 +2179,10 @@ dnl contains the same list of files as AC_CONFIG_HEADERS below. This ensures the
 dnl files can be updated automatically when their *.in sources change.
 AC_CONFIG_HEADERS([include/llvm/Config/config.h include/llvm/Config/llvm-config.h])
 AH_TOP([#ifndef CONFIG_H
 dnl files can be updated automatically when their *.in sources change.
 AC_CONFIG_HEADERS([include/llvm/Config/config.h include/llvm/Config/llvm-config.h])
 AH_TOP([#ifndef CONFIG_H

-#define CONFIG_H])
+#define CONFIG_H
+
+/* Exported configuration */
+#include "llvm/Config/llvm-config.h"])

 AH_BOTTOM([#endif])
 
 AC_CONFIG_FILES([include/llvm/Config/Targets.def])
 AH_BOTTOM([#endif])
 
 AC_CONFIG_FILES([include/llvm/Config/Targets.def])


@@ -2017,6 +2205,11 @@ if test "${clang_src_root}" = ""; then
   clang_src_root="$srcdir/tools/clang"
 fi
 if test -f ${clang_src_root}/README.txt; then
   clang_src_root="$srcdir/tools/clang"
 fi
 if test -f ${clang_src_root}/README.txt; then

+  dnl Clang supports build systems which use the multilib libdir suffix.
+  dnl The autoconf system doesn't support this so stub out that variable.
+  AC_DEFINE_UNQUOTED(CLANG_LIBDIR_SUFFIX,"",
+                     [Multilib suffix for libdir.])
+

   dnl Use variables to stay under 80 columns.
   configh="include/clang/Config/config.h"
   doxy="docs/doxygen.cfg"
   dnl Use variables to stay under 80 columns.
   configh="include/clang/Config/config.h"
   doxy="docs/doxygen.cfg"


@@ -2049,3 +2242,14 @@ AC_CONFIG_MAKEFILE(bindings/ocaml/Makefile.ocaml)
 
 dnl Finally, crank out the output
 AC_OUTPUT
 
 dnl Finally, crank out the output
 AC_OUTPUT

+echo ""
+echo ""
+echo "################################################################################"
+echo "################################################################################"
+echo "The LLVM project has deprecated building with configure & make."
+echo "The autoconf-based makefile build system will be removed in the 3.9 release."
+echo ""
+echo "Please migrate to the CMake-based build system."
+echo "For more information see: http://llvm.org/docs/CMake.html"
+echo "################################################################################"
+echo "################################################################################"