Add some configure/CMake options for enabling/disabling Subzero targets.

configure

 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
 # Generated by GNU Autoconf 2.60 for LLVM 3.6.0svn.
 #
 # Report bugs to <http://llvm.org/bugs/>.
 #
 # Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001,
 # 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
 # This configure script is free software; the Free Software Foundation
 # gives unlimited permission to copy, distribute and modify it.
@@ skipping 700 matching lines @@
 ENABLE_PIC
 ENABLE_SHARED
 ENABLE_EMBED_STDCXX
 ENABLE_TIMESTAMPS
 ALL_TARGETS
 TARGETS_TO_BUILD
 LLVM_ENUM_TARGETS
 LLVM_ENUM_ASM_PRINTERS
 LLVM_ENUM_ASM_PARSERS
 LLVM_ENUM_DISASSEMBLERS
+SUBZERO_ENUM_TARGETS
 OPTIMIZE_OPTION
 EXTRA_OPTIONS
 EXTRA_LD_OPTIONS
 CLANG_SRC_ROOT
 BINUTILS_INCDIR
 ENABLE_TERMINFO
 INTERNAL_PREFIX
 ifGNUmake
 LN_S
 NM
@@ skipping 697 matching lines @@
                           Win32 DLL (default is NO)
   --enable-timestamps     Enable embedding timestamp information in build
                           (default is YES)
   --enable-backtraces     Enable embedding backtraces on crash (default is
                           YES)
   --enable-crash-overrides
                           Enable crash handling overrides (default is YES)
   --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
-                          js, cpp (default=all)
+                          hexagon, xcore, msp430, nvptx, systemz, r600, js,
+                          and cpp (default=all)
   --enable-experimental-targets
                           Build experimental host targets: disable or
                           target1,target2,... (default=disable)
+  --enable-subzero-targets
+                          Build specific subzero targets:
+                          target1,target2,...(default=none)
   --enable-bindings       Build specific language bindings:
                           all,auto,none,{binding-name} (default=auto)
   --enable-terminfo       Query the terminfo database if available (default is
                           YES)
   --enable-libedit        Use libedit if available (default is YES)
   --enable-libffi         Check for the presence of libffi (default is NO)
 
 Optional Packages:
   --with-PACKAGE[=ARG]    use PACKAGE [ARG=yes]
   --without-PACKAGE       do not use PACKAGE (same as --with-PACKAGE=no)
@@ skipping 3854 matching lines @@
 fi
 
 if test "$llvm_cv_enable_crash_overrides" = "yes" ; then
 
 cat >>confdefs.h <<\_ACEOF
 #define ENABLE_CRASH_OVERRIDES 1
 _ACEOF
 
 fi
 
-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 JSBackend NVPTX Hexagon SystemZ R600"
 ALL_TARGETS=$ALL_TARGETS
 
 
 TARGETS_TO_BUILD=""
 # Check whether --enable-targets was given.
 if test "${enable_targets+set}" = set; then
   enableval=$enable_targets;
 else
   enableval=all
 fi
@@ skipping 134 matching lines @@
   if test -f ${srcdir}/lib/Target/${target_to_build}/Disassembler/Makefile ; then
     LLVM_ENUM_DISASSEMBLERS="LLVM_DISASSEMBLER($target_to_build) $LLVM_ENUM_DISASSEMBLERS";
   fi
 done
 
 
 
 
 
 
+SUBZERO_TARGETS_TO_BUILD=""
+# Check whether --enable-subzero_targets was given.
+if test "${enable_subzero_targets+set}" = set; then
+  enableval=$enable_subzero_targets;
+else
+  enableval=none
+fi
+
+case "$enableval" in
+  none) ;;
+  *)for a_target in `echo $enableval|sed -e 's/,/ /g' ` ; do
+      case "$a_target" in
+        X8632)  SUBZERO_TARGETS_TO_BUILD="X8632 $SUBZERO_TARGETS_TO_BUILD" ;;
+        X8664)  SUBZERO_TARGETS_TO_BUILD="X8664 $SUBZERO_TARGETS_TO_BUILD" ;;
+        ARM32)  SUBZERO_TARGETS_TO_BUILD="ARM32 $SUBZERO_TARGETS_TO_BUILD" ;;
+        ARM64)  SUBZERO_TARGETS_TO_BUILD="ARM64 $SUBZERO_TARGETS_TO_BUILD" ;;
+        *) { { echo "$as_me:$LINENO: error: Unrecognized subzero target $a_target" >&5
+echo "$as_me: error: Unrecognized subzero target $a_target" >&2;}
+   { (exit 1); exit 1; }; } ;;
+      esac
+  done
+  ;;
+esac
+
+SUBZERO_ENUM_TARGETS=""
+for target_to_build in $SUBZERO_TARGETS_TO_BUILD; do
+  SUBZERO_ENUM_TARGETS="SUBZERO_TARGET($target_to_build) $SUBZERO_ENUM_TARGETS"
+done
+
+
+
 # Check whether --with-optimize-option was given.
 if test "${with_optimize_option+set}" = set; then
   withval=$with_optimize_option;
 else
   withval=default
 fi
 
 { echo "$as_me:$LINENO: checking optimization flags" >&5
 echo $ECHO_N "checking optimization flags... $ECHO_C" >&6; }
 case "$withval" in
@@ skipping 12951 matching lines @@
 
 
 
 ac_config_headers="$ac_config_headers include/llvm/Config/config.h include/llvm/Config/llvm-config.h"
 
 
 
 
 
 
+ac_config_files="$ac_config_files include/llvm/Config/SZTargets.def"
+
 ac_config_files="$ac_config_files include/llvm/Config/Targets.def"
 
 ac_config_files="$ac_config_files include/llvm/Config/AsmPrinters.def"
 
 ac_config_files="$ac_config_files include/llvm/Config/AsmParsers.def"
 
 ac_config_files="$ac_config_files include/llvm/Config/Disassemblers.def"
 
 ac_config_headers="$ac_config_headers include/llvm/Support/DataTypes.h"
 
@@ skipping 609 matching lines @@
 _ACEOF
 
 cat >>$CONFIG_STATUS <<\_ACEOF
 
 # Handling of arguments.
 for ac_config_target in $ac_config_targets
 do
   case $ac_config_target in
     "include/llvm/Config/config.h") CONFIG_HEADERS="$CONFIG_HEADERS include/llvm/Config/config.h" ;;
     "include/llvm/Config/llvm-config.h") CONFIG_HEADERS="$CONFIG_HEADERS include/llvm/Config/llvm-config.h" ;;
+    "include/llvm/Config/SZTargets.def") CONFIG_FILES="$CONFIG_FILES include/llvm/Config/SZTargets.def" ;;
     "include/llvm/Config/Targets.def") CONFIG_FILES="$CONFIG_FILES include/llvm/Config/Targets.def" ;;
     "include/llvm/Config/AsmPrinters.def") CONFIG_FILES="$CONFIG_FILES include/llvm/Config/AsmPrinters.def" ;;
     "include/llvm/Config/AsmParsers.def") CONFIG_FILES="$CONFIG_FILES include/llvm/Config/AsmParsers.def" ;;
     "include/llvm/Config/Disassemblers.def") CONFIG_FILES="$CONFIG_FILES include/llvm/Config/Disassemblers.def" ;;
     "include/llvm/Support/DataTypes.h") CONFIG_HEADERS="$CONFIG_HEADERS include/llvm/Support/DataTypes.h" ;;
     "Makefile.config") CONFIG_FILES="$CONFIG_FILES Makefile.config" ;;
     "llvm.spec") CONFIG_FILES="$CONFIG_FILES llvm.spec" ;;
     "docs/doxygen.cfg") CONFIG_FILES="$CONFIG_FILES docs/doxygen.cfg" ;;
     "tools/clang/${configh}") CONFIG_HEADERS="$CONFIG_HEADERS tools/clang/${configh}:${clang_src_root}/${configh}.in" ;;
     "tools/clang/${doxy}") CONFIG_FILES="$CONFIG_FILES tools/clang/${doxy}:${clang_src_root}/${doxy}.in" ;;
@@ skipping 223 matching lines @@
 ENABLE_PIC!$ENABLE_PIC$ac_delim
 ENABLE_SHARED!$ENABLE_SHARED$ac_delim
 ENABLE_EMBED_STDCXX!$ENABLE_EMBED_STDCXX$ac_delim
 ENABLE_TIMESTAMPS!$ENABLE_TIMESTAMPS$ac_delim
 ALL_TARGETS!$ALL_TARGETS$ac_delim
 TARGETS_TO_BUILD!$TARGETS_TO_BUILD$ac_delim
 LLVM_ENUM_TARGETS!$LLVM_ENUM_TARGETS$ac_delim
 LLVM_ENUM_ASM_PRINTERS!$LLVM_ENUM_ASM_PRINTERS$ac_delim
 LLVM_ENUM_ASM_PARSERS!$LLVM_ENUM_ASM_PARSERS$ac_delim
 LLVM_ENUM_DISASSEMBLERS!$LLVM_ENUM_DISASSEMBLERS$ac_delim
+SUBZERO_ENUM_TARGETS!$SUBZERO_ENUM_TARGETS$ac_delim
 OPTIMIZE_OPTION!$OPTIMIZE_OPTION$ac_delim
 EXTRA_OPTIONS!$EXTRA_OPTIONS$ac_delim
 EXTRA_LD_OPTIONS!$EXTRA_LD_OPTIONS$ac_delim
 CLANG_SRC_ROOT!$CLANG_SRC_ROOT$ac_delim
 BINUTILS_INCDIR!$BINUTILS_INCDIR$ac_delim
 ENABLE_TERMINFO!$ENABLE_TERMINFO$ac_delim
 INTERNAL_PREFIX!$INTERNAL_PREFIX$ac_delim
 ifGNUmake!$ifGNUmake$ac_delim
 LN_S!$LN_S$ac_delim
 NM!$NM$ac_delim
@@ skipping 59 matching lines @@
 HAVE_OCAML_OUNIT!$HAVE_OCAML_OUNIT$ac_delim
 OCAML_LIBDIR!$OCAML_LIBDIR$ac_delim
 ENABLE_VISIBILITY_INLINES_HIDDEN!$ENABLE_VISIBILITY_INLINES_HIDDEN$ac_delim
 RPATH!$RPATH$ac_delim
 RDYNAMIC!$RDYNAMIC$ac_delim
 program_prefix!$program_prefix$ac_delim
 LIBOBJS!$LIBOBJS$ac_delim
 LTLIBOBJS!$LTLIBOBJS$ac_delim
 _ACEOF
 
-  if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 96; then
+  if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 97; then
     break
   elif $ac_last_try; then
     { { echo "$as_me:$LINENO: error: could not make $CONFIG_STATUS" >&5
 echo "$as_me: error: could not make $CONFIG_STATUS" >&2;}
    { (exit 1); exit 1; }; }
   else
     ac_delim="$ac_delim!$ac_delim _$ac_delim!! "
   fi
 done
 
@@ skipping 611 matching lines @@
            --cache-file=\"\$ac_sub_cache_file\" --srcdir=\"\$ac_srcdir\"" ||
         { { echo "$as_me:$LINENO: error: $ac_sub_configure failed for $ac_dir" >&5
 echo "$as_me: error: $ac_sub_configure failed for $ac_dir" >&2;}
    { (exit 1); exit 1; }; }
     fi
 
     cd "$ac_popdir"
   done
 fi