use getHostTriple instead of getDefaultTargetTriple in getClosestTargetForJIT

Get back getHostTriple.

For JIT compilation, use the host triple instead of the default
target: this fixes some JIT testcases that used to fail when the
compiler has been configured as a cross compiler.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147542 91177308-0d34-0410-b5e6-96231b3b80d8

autoconf/configure.ac

@@ -1484,6 +1484,8 @@ AC_DEFINE_UNQUOTED(LLVM_MANDIR, "$LLVM_MANDIR",
                    [Installation directory for man pages])
 AC_DEFINE_UNQUOTED(LLVM_CONFIGTIME, "$LLVM_CONFIGTIME",
                    [Time at which LLVM was configured])
+AC_DEFINE_UNQUOTED(LLVM_HOST_TRIPLE, "$host",
+                   [Host triple LLVM will run on])
 AC_DEFINE_UNQUOTED(LLVM_DEFAULT_TARGET_TRIPLE, "$target",
                    [Target triple LLVM will generate code for by default])
 

cmake/config-ix.cmake

@@ -288,13 +288,16 @@ include(CheckCXXCompilerFlag)
 check_cxx_compiler_flag("-Wno-variadic-macros" SUPPORTS_NO_VARIADIC_MACROS_FLAG)
 
 include(GetTargetTriple)
+get_target_triple(LLVM_HOST_TRIPLE)
 get_target_triple(LLVM_DEFAULT_TARGET_TRIPLE)
 
+set(HOST_TRIPLE "${LLVM_HOST_TRIPLE}")
 set(TARGET_TRIPLE "${LLVM_DEFAULT_TARGET_TRIPLE}")
 
 # Determine the native architecture.
 string(TOLOWER "${LLVM_TARGET_ARCH}" LLVM_NATIVE_ARCH)
 if( LLVM_NATIVE_ARCH STREQUAL "host" )
+  string(REGEX MATCH "^[^-]*" LLVM_NATIVE_ARCH ${LLVM_HOST_TRIPLE})
   string(REGEX MATCH "^[^-]*" LLVM_NATIVE_ARCH ${LLVM_DEFAULT_TARGET_TRIPLE})
 endif ()
 

configure

@@ -20912,6 +20912,11 @@ cat >>confdefs.h <<_ACEOF
 _ACEOF
 
 
+cat >>confdefs.h <<_ACEOF
+#define LLVM_HOST_TRIPLE "$host"
+_ACEOF
+
+
 cat >>confdefs.h <<_ACEOF
 #define LLVM_DEFAULT_TARGET_TRIPLE "$target"
 _ACEOF

include/llvm/Config/config.h.cmake

@@ -560,6 +560,9 @@
 /* Has gcc/MSVC atomic intrinsics */
 #cmakedefine01 LLVM_HAS_ATOMICS
 
+/* Host triple LLVM will run on */
+#cmakedefine LLVM_HOST_TRIPLE "${LLVM_HOST_TRIPLE}"
+
 /* Installation directory for include files */
 #cmakedefine LLVM_INCLUDEDIR "${LLVM_INCLUDEDIR}"
 

include/llvm/Config/config.h.in

@@ -558,6 +558,9 @@
 /* Has gcc/MSVC atomic intrinsics */
 #undef LLVM_HAS_ATOMICS
 
+/* Host triple LLVM will run on */
+#undef LLVM_HOST_TRIPLE
+
 /* Installation directory for include files */
 #undef LLVM_INCLUDEDIR
 

include/llvm/Config/llvm-config.h.cmake

@@ -40,6 +40,9 @@
 /* Has gcc/MSVC atomic intrinsics */
 #cmakedefine01 LLVM_HAS_ATOMICS
 
+/* Host triple LLVM will run on */
+#cmakedefine LLVM_HOST_TRIPLE "${LLVM_HOST_TRIPLE}"
+
 /* Installation directory for include files */
 #cmakedefine LLVM_INCLUDEDIR "${LLVM_INCLUDEDIR}"
 

include/llvm/Config/llvm-config.h.in

@@ -40,6 +40,9 @@
 /* Has gcc/MSVC atomic intrinsics */
 #undef LLVM_HAS_ATOMICS
 
+/* Host triple LLVM will run on */
+#undef LLVM_HOST_TRIPLE
+
 /* Installation directory for include files */
 #undef LLVM_INCLUDEDIR
 

include/llvm/Support/Host.h

@@ -33,6 +33,14 @@ namespace sys {
     return !isLittleEndianHost();
   }
 
+  /// getHostTriple() - Return the host where the compiler will be running.
+  ///
+  /// The host triple is a string in the format of:
+  ///   CPU_TYPE-VENDOR-OPERATING_SYSTEM
+  /// or
+  ///   CPU_TYPE-VENDOR-KERNEL-OPERATING_SYSTEM
+  std::string getHostTriple();
+
   /// getDefaultTargetTriple() - Return the default target triple the compiler
   /// has been configured to produce code for.
   ///

lib/Support/CommandLine.cpp

@@ -1373,6 +1373,7 @@ public:
        << "  Built " << __DATE__ << " (" << __TIME__ << ").\n"
 #endif
        << "  Default target: " << sys::getDefaultTargetTriple() << '\n'
+       << "  Host: " << sys::getHostTriple() << '\n'
        << "  Host CPU: " << CPU << '\n';
   }
   void operator=(bool OptionWasSpecified) {

lib/Support/TargetRegistry.cpp

@@ -84,7 +84,7 @@ void TargetRegistry::RegisterTarget(Target &T,
 }
 
 const Target *TargetRegistry::getClosestTargetForJIT(std::string &Error) {
-  const Target *TheTarget = lookupTarget(sys::getDefaultTargetTriple(), Error);
+  const Target *TheTarget = lookupTarget(sys::getHostTriple(), Error);
 
   if (TheTarget && !TheTarget->hasJIT()) {
     Error = "No JIT compatible target available for this host";

lib/Support/Unix/Host.inc

@@ -35,13 +35,9 @@ static std::string getOSVersion() {
   return info.release;
 }
 
-std::string sys::getDefaultTargetTriple() {
+std::string getTriple(StringRef &TripleString) {
-  StringRef TargetTripleString(LLVM_DEFAULT_TARGET_TRIPLE);
+  std::pair<StringRef, StringRef> ArchSplit = TripleString.split('-');
-  std::pair<StringRef, StringRef> ArchSplit = TargetTripleString.split('-');
-
-  // Normalize the arch, since the target triple may not actually match the target.
   std::string Arch = ArchSplit.first;
-
   std::string Triple(Arch);
   Triple += '-';
   Triple += ArchSplit.second;
@@ -61,3 +57,13 @@ std::string sys::getDefaultTargetTriple() {
 
   return Triple;
 }
+
+std::string sys::getDefaultTargetTriple() {
+  StringRef TargetTripleString(LLVM_DEFAULT_TARGET_TRIPLE);
+  return getTriple(TargetTripleString);
+}
+
+std::string sys::getHostTriple() {
+  StringRef HostTripleString(LLVM_HOST_TRIPLE);
+  return getTriple(HostTripleString);
+}

lib/Support/Windows/Host.inc

@@ -20,3 +20,7 @@ using namespace llvm;
 std::string sys::getDefaultTargetTriple() {
   return LLVM_DEFAULT_TARGET_TRIPLE;
 }
+
+std::string sys::getHostTriple() {
+  return LLVM_HOST_TRIPLE;
+}

projects/sample/autoconf/configure.ac

@@ -1390,6 +1390,8 @@ AC_DEFINE_UNQUOTED(LLVM_MANDIR, "$LLVM_MANDIR",
                    [Installation directory for man pages])
 AC_DEFINE_UNQUOTED(LLVM_CONFIGTIME, "$LLVM_CONFIGTIME",
                    [Time at which LLVM was configured])
+AC_DEFINE_UNQUOTED(LLVM_HOST_TRIPLE, "$host",
+                   [Host triple LLVM will run on])
 AC_DEFINE_UNQUOTED(LLVM_DEFAULT_TARGET_TRIPLE, "$target",
                    [Target triple LLVM will generate code for by default])
 

projects/sample/configure

@@ -8854,7 +8854,7 @@ dgux*)
   shlibpath_var=LD_LIBRARY_PATH
   ;;
 
-freebsd1*)
+freebsd1.*)
   dynamic_linker=no
   ;;
 
@@ -8877,7 +8877,7 @@ freebsd* | dragonfly*)
     objformat=`/usr/bin/objformat`
   else
     case $host_os in
-    freebsd[123]*) objformat=aout ;;
+    freebsd[123].*) objformat=aout ;;
     *) objformat=elf ;;
     esac
   fi
@@ -8895,7 +8895,7 @@ freebsd* | dragonfly*)
   esac
   shlibpath_var=LD_LIBRARY_PATH
   case $host_os in
-  freebsd2*)
+  freebsd2.*)
     shlibpath_overrides_runpath=yes
     ;;
   freebsd3.[01]* | freebsdelf3.[01]*)
@@ -10409,7 +10409,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<EOF
-#line 10423 "configure"
+#line 10412 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -20818,6 +20818,11 @@ cat >>confdefs.h <<_ACEOF
 _ACEOF
 
 
+cat >>confdefs.h <<_ACEOF
+#define LLVM_HOST_TRIPLE "$host"
+_ACEOF
+
+
 cat >>confdefs.h <<_ACEOF
 #define LLVM_DEFAULT_TARGET_TRIPLE "$target"
 _ACEOF