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

autoconf/configure.ac

 dnl === configure.ac --------------------------------------------------------===
 dnl                     The LLVM Compiler Infrastructure
 dnl
 dnl This file is distributed under the University of Illinois Open Source
 dnl License. See LICENSE.TXT for details.
 dnl
 dnl===-----------------------------------------------------------------------===
 dnl This is the LLVM configuration script. It is processed by the autoconf
 dnl program to produce a script named configure. This script contains the
 dnl configuration checks that LLVM needs in order to support multiple platforms.
@@ skipping 918 matching lines @@
 
 dnl List all possible targets
 ALL_TARGETS="X86 Sparc PowerPC ARM AArch64 Mips XCore MSP430 CppBackend JSBackend NVPTX Hexagon SystemZ R600"
 AC_SUBST(ALL_TARGETS,$ALL_TARGETS)
 
 dnl Allow specific targets to be specified for building (or not)
 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,
-     xcore, msp430, nvptx, systemz, r600, and cpp (default=all)]),,
+     xcore, msp430, nvptx, systemz, r600, js, and cpp (default=all)]),,
     enableval=all)
 if test "$enableval" = host-only ; then
   enableval=host
 fi
 case "$enableval" in
   all) TARGETS_TO_BUILD="$ALL_TARGETS" ;;
   *)for a_target in `echo $enableval|sed -e 's/,/ /g' ` ; do
       case "$a_target" in
         x86)      TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
         x86_64)   TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
@@ skipping 98 matching lines @@
   fi
   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
 AC_SUBST(LLVM_ENUM_TARGETS)
 AC_SUBST(LLVM_ENUM_ASM_PRINTERS)
 AC_SUBST(LLVM_ENUM_ASM_PARSERS)
 AC_SUBST(LLVM_ENUM_DISASSEMBLERS)
 
+
+dnl Allow specific Subzero targets to be specified for building (or not)
+SUBZERO_TARGETS_TO_BUILD=""
+AC_ARG_ENABLE([subzero_targets],AS_HELP_STRING([--enable-subzero-targets],
+    [Build specific subzero targets: target1,target2,...(default=none)]),,
+    enableval=none)
+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" ;;
+        *) AC_MSG_ERROR([Unrecognized subzero target $a_target]) ;;
+      esac
+  done
+  ;;
+esac
+
+dnl Build the SUBZERO_ENUM_TARGETS macro for SZTargets.def.
+SUBZERO_ENUM_TARGETS=""
+for target_to_build in $SUBZERO_TARGETS_TO_BUILD; do
+  SUBZERO_ENUM_TARGETS="SUBZERO_TARGET($target_to_build) $SUBZERO_ENUM_TARGETS"
+done
+AC_SUBST(SUBZERO_ENUM_TARGETS)
+
 dnl Override the option to use for optimized builds.
 AC_ARG_WITH(optimize-option,
   AS_HELP_STRING([--with-optimize-option],
                  [Select the compiler options to use for optimized builds]),,
                  withval=default)
 AC_MSG_CHECKING([optimization flags])
 case "$withval" in
   default)
     case "$llvm_cv_os_type" in
     FreeBSD) optimize_option=-O2 ;;
@@ skipping 928 matching lines @@
 dnl Configure header files
 dnl WARNING: dnl If you add or remove any of the following config headers, then
 dnl you MUST also update Makefile so that the variable FilesToConfig
 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
 #define CONFIG_H])
 AH_BOTTOM([#endif])
 
+AC_CONFIG_FILES([include/llvm/Config/SZTargets.def])
 AC_CONFIG_FILES([include/llvm/Config/Targets.def])
 AC_CONFIG_FILES([include/llvm/Config/AsmPrinters.def])
 AC_CONFIG_FILES([include/llvm/Config/AsmParsers.def])
 AC_CONFIG_FILES([include/llvm/Config/Disassemblers.def])
 AC_CONFIG_HEADERS([include/llvm/Support/DataTypes.h])
 
 dnl Configure the makefile's configuration data
 AC_CONFIG_FILES([Makefile.config])
 
 dnl Configure the RPM spec file for LLVM
@@ skipping 32 matching lines @@
 AC_CONFIG_MAKEFILE(test/Makefile.tests)
 AC_CONFIG_MAKEFILE(unittests/Makefile)
 AC_CONFIG_MAKEFILE(tools/Makefile)
 AC_CONFIG_MAKEFILE(utils/Makefile)
 AC_CONFIG_MAKEFILE(projects/Makefile)
 AC_CONFIG_MAKEFILE(bindings/Makefile)
 AC_CONFIG_MAKEFILE(bindings/ocaml/Makefile.ocaml)
 
 dnl Finally, crank out the output
 AC_OUTPUT