In LLVM 2.0 we won't use the runtime libraries as llvm-gcc3 support will

be dropped. This patch pertains to removing the runtime directory from LLVM.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31793 91177308-0d34-0410-b5e6-96231b3b80d8

53 files changed, 36 insertions, 3282 deletions

diff --git a/Makefile b/Makefile
index c45ac976dd..97a738805d 100644
--- a/Makefile
+++ b/Makefile
@@ -15,28 +15,23 @@ LEVEL := .
 #   3. Build VMCore, which builds the Intrinsics.inc file used by libs.
 #   4. Build libs, which are needed by llvm-config.
 #   5. Build llvm-config, which determines inter-lib dependencies for tools.
-#   6. Build tools, runtime, docs.
+#   6. Build tools, docs.
 #
 DIRS := lib/System lib/Support utils lib/VMCore lib tools/llvm-config \
-        tools runtime docs
+        tools docs
         
 OPTIONAL_DIRS := examples projects
 EXTRA_DIST := test llvm.spec include win32 Xcode
 
 include $(LEVEL)/Makefile.config 
 
-# llvm-gcc4 doesn't need runtime libs.
-ifeq ($(LLVMGCC_MAJVERS),4)
-  DIRS := $(filter-out runtime, $(DIRS))
-endif
-
 ifeq ($(MAKECMDGOALS),libs-only)
-  DIRS := $(filter-out tools runtime docs, $(DIRS))
+  DIRS := $(filter-out tools docs, $(DIRS))
   OPTIONAL_DIRS :=
 endif
 
 ifeq ($(MAKECMDGOALS),tools-only)
-  DIRS := $(filter-out runtime docs, $(DIRS))
+  DIRS := $(filter-out docs, $(DIRS))
   OPTIONAL_DIRS :=
 endif
 
diff --git a/Makefile.config.in b/Makefile.config.in
index 2652db3bb9..f005c69412 100644
--- a/Makefile.config.in
+++ b/Makefile.config.in
@@ -207,11 +207,6 @@ OBJ_ROOT := .
 #DISABLE_ASSERTIONS = 1
 @DISABLE_ASSERTIONS@
 
-# When DEBUG_RUNTIME is enabled, the runtime libraries will retain debug
-# symbols.
-#DEBUG_RUNTIME = 1
-@DEBUG_RUNTIME@
-
 # When ENABLE_PROFILING is enabled, the llvm source base is built with profile
 # information to allow gprof to be used to get execution frequencies.
 #ENABLE_PROFILING = 1
diff --git a/Makefile.rules b/Makefile.rules
index f80cc25489..a8b1b8056d 100644
--- a/Makefile.rules
+++ b/Makefile.rules
@@ -1099,18 +1099,10 @@ $(ObjDir)/%.s: %.c $(ObjDir)/.dir $(BUILT_SOURCES)
 	$(Echo) "Compiling $*.c to asm for $(BuildMode) build" $(PIC_FLAG)
 	$(MAYBE_PIC_Compile.C) $< -o $@ -S
 
-
 # make the C and C++ compilers strip debug info out of bytecode libraries.
-ifdef DEBUG_RUNTIME
-$(ObjectsBC): $(ObjDir)/%.bc: $(ObjDir)/%.ll $(GCCAS)
-	$(Echo) "Compiling $*.ll to $*.bc for $(BuildMode) build (bytecode)"
-	$(Verb) $(GCCAS) $< -o $@
-else
 $(ObjectsBC): $(ObjDir)/%.bc: $(ObjDir)/%.ll $(GCCAS)
 	$(Echo) "Compiling $*.ll to $*.bc for $(BuildMode) build (bytecode)"
 	$(Verb) $(GCCAS) -strip-debug $< -o $@
-endif
-
 
 #---------------------------------------------------------
 # Provide rule to build .bc files from .ll sources,
diff --git a/autoconf/configure.ac b/autoconf/configure.ac
index 4b9e0c31fd..445e1ba911 100644
--- a/autoconf/configure.ac
+++ b/autoconf/configure.ac
@@ -268,15 +268,6 @@ else
   AC_SUBST(DISABLE_ASSERTIONS,[[DISABLE_ASSERTIONS=1]])
 fi
 
-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)
-if test ${enableval} = "no" ; then
-  AC_SUBST(DEBUG_RUNTIME,[[]])
-else
-  AC_SUBST(DEBUG_RUNTIME,[[DEBUG_RUNTIME=1]])
-fi
-
 dnl --enable-jit: check whether they want to enable the jit
 AC_ARG_ENABLE(jit,
   AS_HELP_STRING(--enable-jit,
@@ -820,7 +811,6 @@ AC_CONFIG_MAKEFILE(Makefile)
 AC_CONFIG_MAKEFILE(Makefile.common)
 AC_CONFIG_MAKEFILE(examples/Makefile)
 AC_CONFIG_MAKEFILE(lib/Makefile)
-AC_CONFIG_MAKEFILE(runtime/Makefile)
 AC_CONFIG_MAKEFILE(test/Makefile)
 AC_CONFIG_MAKEFILE(test/Makefile.tests)
 AC_CONFIG_MAKEFILE(tools/Makefile)
@@ -833,8 +823,6 @@ AC_OUTPUT
 dnl Warn loudly if llvm-gcc was not obviously working
 if test "$llvm_cv_llvmgcc_sanity" = "no" ; then
  AC_MSG_WARN([***** llvm-gcc/llvm-g++ was not found, or does not appear to be ])
- AC_MSG_WARN([***** working. Please make sure you have llvm-gcc and llvm-g++ in])
- AC_MSG_WARN([***** your path before configuring LLVM. The runtime libraries])
- AC_MSG_WARN([***** (llvm/runtime) will not be built but you should be able to])
- AC_MSG_WARN([***** build the llvm tools.])
+ AC_MSG_WARN([***** working. Please make sure you have llvm-gcc and llvm-g++ ])
+ AC_MSG_WARN([***** in your path before configuring LLVM.])
 fi
diff --git a/configure b/configure
index 7ae686b76d..7de451773d 100755
--- a/configure
+++ b/configure
@@ -830,7 +830,6 @@ BUILD_EXEEXT
 CVSBUILD
 ENABLE_OPTIMIZED
 DISABLE_ASSERTIONS
-DEBUG_RUNTIME
 JIT
 TARGET_HAS_JIT
 ENABLE_DOXYGEN
@@ -1520,7 +1519,6 @@ Optional Features:
   --enable-FEATURE[=ARG]  include FEATURE [ARG=yes]
   --enable-optimized
   --enable-assertions
-  --enable-debug-runtime
   --enable-jit            Enable Just In Time Compiling (default is YES)
   --enable-doxygen        Build doxygen documentation (default is NO)
   --enable-threads        Use threads if available (default is YES)
@@ -4563,21 +4561,6 @@ else
 
 fi
 
-# Check whether --enable-debug-runtime was given.
-if test "${enable_debug_runtime+set}" = set; then
-  enableval=$enable_debug_runtime;
-else
-  enableval=no
-fi
-
-if test ${enableval} = "no" ; then
-  DEBUG_RUNTIME=
-
-else
-  DEBUG_RUNTIME=DEBUG_RUNTIME=1
-
-fi
-
 # Check whether --enable-jit was given.
 if test "${enable_jit+set}" = set; then
   enableval=$enable_jit;
@@ -10298,7 +10281,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<EOF
-#line 10301 "configure"
+#line 10284 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -12442,7 +12425,7 @@ ia64-*-hpux*)
   ;;
 *-*-irix6*)
   # Find out which ABI we are using.
-  echo '#line 12445 "configure"' > conftest.$ac_ext
+  echo '#line 12428 "configure"' > conftest.$ac_ext
   if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
@@ -14160,11 +14143,11 @@ else
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:14163: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:14146: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>conftest.err)
    ac_status=$?
    cat conftest.err >&5
-   echo "$as_me:14167: \$? = $ac_status" >&5
+   echo "$as_me:14150: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s "$ac_outfile"; then
      # The compiler can only warn and ignore the option if not recognized
      # So say no if there are warnings other than the usual output.
@@ -14428,11 +14411,11 @@ else
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:14431: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:14414: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>conftest.err)
    ac_status=$?
    cat conftest.err >&5
-   echo "$as_me:14435: \$? = $ac_status" >&5
+   echo "$as_me:14418: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s "$ac_outfile"; then
      # The compiler can only warn and ignore the option if not recognized
      # So say no if there are warnings other than the usual output.
@@ -14532,11 +14515,11 @@ else
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:14535: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:14518: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>out/conftest.err)
    ac_status=$?
    cat out/conftest.err >&5
-   echo "$as_me:14539: \$? = $ac_status" >&5
+   echo "$as_me:14522: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s out/conftest2.$ac_objext
    then
      # The compiler can only warn and ignore the option if not recognized
@@ -16984,7 +16967,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<EOF
-#line 16987 "configure"
+#line 16970 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -17084,7 +17067,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<EOF
-#line 17087 "configure"
+#line 17070 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -19452,11 +19435,11 @@ else
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:19455: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:19438: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>conftest.err)
    ac_status=$?
    cat conftest.err >&5
-   echo "$as_me:19459: \$? = $ac_status" >&5
+   echo "$as_me:19442: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s "$ac_outfile"; then
      # The compiler can only warn and ignore the option if not recognized
      # So say no if there are warnings other than the usual output.
@@ -19556,11 +19539,11 @@ else
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:19559: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:19542: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>out/conftest.err)
    ac_status=$?
    cat out/conftest.err >&5
-   echo "$as_me:19563: \$? = $ac_status" >&5
+   echo "$as_me:19546: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s out/conftest2.$ac_objext
    then
      # The compiler can only warn and ignore the option if not recognized
@@ -21126,11 +21109,11 @@ else
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:21129: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:21112: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>conftest.err)
    ac_status=$?
    cat conftest.err >&5
-   echo "$as_me:21133: \$? = $ac_status" >&5
+   echo "$as_me:21116: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s "$ac_outfile"; then
      # The compiler can only warn and ignore the option if not recognized
      # So say no if there are warnings other than the usual output.
@@ -21230,11 +21213,11 @@ else
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:21233: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:21216: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>out/conftest.err)
    ac_status=$?
    cat out/conftest.err >&5
-   echo "$as_me:21237: \$? = $ac_status" >&5
+   echo "$as_me:21220: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s out/conftest2.$ac_objext
    then
      # The compiler can only warn and ignore the option if not recognized
@@ -23465,11 +23448,11 @@ else
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:23468: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:23451: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>conftest.err)
    ac_status=$?
    cat conftest.err >&5
-   echo "$as_me:23472: \$? = $ac_status" >&5
+   echo "$as_me:23455: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s "$ac_outfile"; then
      # The compiler can only warn and ignore the option if not recognized
      # So say no if there are warnings other than the usual output.
@@ -23733,11 +23716,11 @@ else
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:23736: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:23719: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>conftest.err)
    ac_status=$?
    cat conftest.err >&5
-   echo "$as_me:23740: \$? = $ac_status" >&5
+   echo "$as_me:23723: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s "$ac_outfile"; then
      # The compiler can only warn and ignore the option if not recognized
      # So say no if there are warnings other than the usual output.
@@ -23837,11 +23820,11 @@ else
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:23840: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:23823: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>out/conftest.err)
    ac_status=$?
    cat out/conftest.err >&5
-   echo "$as_me:23844: \$? = $ac_status" >&5
+   echo "$as_me:23827: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s out/conftest2.$ac_objext
    then
      # The compiler can only warn and ignore the option if not recognized
@@ -33431,9 +33414,6 @@ ac_config_commands="$ac_config_commands examples/Makefile"
 ac_config_commands="$ac_config_commands lib/Makefile"
 
 
-ac_config_commands="$ac_config_commands runtime/Makefile"
-
-
 ac_config_commands="$ac_config_commands test/Makefile"
 
 
@@ -34027,7 +34007,6 @@ do
     "Makefile.common") CONFIG_COMMANDS="$CONFIG_COMMANDS Makefile.common" ;;
     "examples/Makefile") CONFIG_COMMANDS="$CONFIG_COMMANDS examples/Makefile" ;;
     "lib/Makefile") CONFIG_COMMANDS="$CONFIG_COMMANDS lib/Makefile" ;;
-    "runtime/Makefile") CONFIG_COMMANDS="$CONFIG_COMMANDS runtime/Makefile" ;;
     "test/Makefile") CONFIG_COMMANDS="$CONFIG_COMMANDS test/Makefile" ;;
     "test/Makefile.tests") CONFIG_COMMANDS="$CONFIG_COMMANDS test/Makefile.tests" ;;
     "tools/Makefile") CONFIG_COMMANDS="$CONFIG_COMMANDS tools/Makefile" ;;
@@ -34169,7 +34148,6 @@ BUILD_EXEEXT!$BUILD_EXEEXT$ac_delim
 CVSBUILD!$CVSBUILD$ac_delim
 ENABLE_OPTIMIZED!$ENABLE_OPTIMIZED$ac_delim
 DISABLE_ASSERTIONS!$DISABLE_ASSERTIONS$ac_delim
-DEBUG_RUNTIME!$DEBUG_RUNTIME$ac_delim
 JIT!$JIT$ac_delim
 TARGET_HAS_JIT!$TARGET_HAS_JIT$ac_delim
 ENABLE_DOXYGEN!$ENABLE_DOXYGEN$ac_delim
@@ -34192,6 +34170,7 @@ ifGNUmake!$ifGNUmake$ac_delim
 LN_S!$LN_S$ac_delim
 CMP!$CMP$ac_delim
 CP!$CP$ac_delim
+DATE!$DATE$ac_delim
 _ACEOF
 
   if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 97; then
@@ -34233,7 +34212,6 @@ _ACEOF
 ac_delim='%!_!# '
 for ac_last_try in false false false false false :; do
   cat >conf$$subs.sed <<_ACEOF
-DATE!$DATE$ac_delim
 FIND!$FIND$ac_delim
 MKDIR!$MKDIR$ac_delim
 MV!$MV$ac_delim
@@ -34299,7 +34277,7 @@ LIBOBJS!$LIBOBJS$ac_delim
 LTLIBOBJS!$LTLIBOBJS$ac_delim
 _ACEOF
 
-  if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 64; then
+  if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 63; then
     break
   elif $ac_last_try; then
     { { echo "$as_me:$LINENO: error: could not make $CONFIG_STATUS" >&5
@@ -34710,8 +34688,6 @@ echo "$as_me: executing $ac_file commands" >&6;}
    ${SHELL} ${llvm_src}/autoconf/install-sh -c ${srcdir}/examples/Makefile examples/Makefile ;;
     "lib/Makefile":C) ${llvm_src}/autoconf/mkinstalldirs `dirname lib/Makefile`
    ${SHELL} ${llvm_src}/autoconf/install-sh -c ${srcdir}/lib/Makefile lib/Makefile ;;
-    "runtime/Makefile":C) ${llvm_src}/autoconf/mkinstalldirs `dirname runtime/Makefile`
-   ${SHELL} ${llvm_src}/autoconf/install-sh -c ${srcdir}/runtime/Makefile runtime/Makefile ;;
     "test/Makefile":C) ${llvm_src}/autoconf/mkinstalldirs `dirname test/Makefile`
    ${SHELL} ${llvm_src}/autoconf/install-sh -c ${srcdir}/test/Makefile test/Makefile ;;
     "test/Makefile.tests":C) ${llvm_src}/autoconf/mkinstalldirs `dirname test/Makefile.tests`
@@ -34933,12 +34909,8 @@ fi
 if test "$llvm_cv_llvmgcc_sanity" = "no" ; then
  { echo "$as_me:$LINENO: WARNING: ***** llvm-gcc/llvm-g++ was not found, or does not appear to be " >&5
 echo "$as_me: WARNING: ***** llvm-gcc/llvm-g++ was not found, or does not appear to be " >&2;}
- { echo "$as_me:$LINENO: WARNING: ***** working. Please make sure you have llvm-gcc and llvm-g++ in" >&5
-echo "$as_me: WARNING: ***** working. Please make sure you have llvm-gcc and llvm-g++ in" >&2;}
- { echo "$as_me:$LINENO: WARNING: ***** your path before configuring LLVM. The runtime libraries" >&5
-echo "$as_me: WARNING: ***** your path before configuring LLVM. The runtime libraries" >&2;}
- { echo "$as_me:$LINENO: WARNING: ***** (llvm/runtime) will not be built but you should be able to" >&5
-echo "$as_me: WARNING: ***** (llvm/runtime) will not be built but you should be able to" >&2;}
- { echo "$as_me:$LINENO: WARNING: ***** build the llvm tools." >&5
-echo "$as_me: WARNING: ***** build the llvm tools." >&2;}
+ { echo "$as_me:$LINENO: WARNING: ***** working. Please make sure you have llvm-gcc and llvm-g++ " >&5
+echo "$as_me: WARNING: ***** working. Please make sure you have llvm-gcc and llvm-g++ " >&2;}
+ { echo "$as_me:$LINENO: WARNING: ***** in your path before configuring LLVM." >&5
+echo "$as_me: WARNING: ***** in your path before configuring LLVM." >&2;}
 fi
diff --git a/runtime/GC/GCInterface.h b/runtime/GC/GCInterface.h
deleted file mode 100644
index 4eb48183bc..0000000000
--- a/runtime/GC/GCInterface.h
+++ /dev/null
@@ -1,48 +0,0 @@
-/*===-- GCInterface.h - Public interface exposed by garbage collectors ----===*\
-|*
-|*                     The LLVM Compiler Infrastructure
-|*
-|* This file was developed by the LLVM research group and is distributed under
-|* the University of Illinois Open Source License. See LICENSE.TXT for details.
-|*
-|*===----------------------------------------------------------------------===*|
-|*
-|* This file defines the common public interface that must be exposed by all
-|* LLVM garbage collectors.
-|*
-\*===----------------------------------------------------------------------===*/
-
-#ifndef GCINTERFACE_H
-#define GCINTERFACE_H
-
-/* llvm_cg_walk_gcroots - This function is exposed by the LLVM code generator,
- * and allows us to traverse the roots on the stack.
- */
-void llvm_cg_walk_gcroots(void (*FP)(void **Root, void *Meta));
-
-
-/* llvm_gc_initialize - This function is called to initalize the garbage
- * collector.
- */
-void llvm_gc_initialize(unsigned InitialHeapSize);
-
-/* llvm_gc_allocate - This function allocates Size bytes from the heap and
- * returns a pointer to it.
- */
-void *llvm_gc_allocate(unsigned Size);
-
-/* llvm_gc_collect - This function forces a garbage collection cycle.
- */
-void llvm_gc_collect();
-
-/* llvm_gc_read - This function should be implemented to include any read
- * barrier code that is needed by the garbage collector.
- */
-void *llvm_gc_read(void *ObjPtr, void **FieldPtr);
-
-/* llvm_gc_write - This function should be implemented to include any write
- * barrier code that is needed by the garbage collector.
- */
-void llvm_gc_write(void *V, void *ObjPtr, void **FieldPtr);
-
-#endif
diff --git a/runtime/GC/Makefile b/runtime/GC/Makefile
deleted file mode 100644
index b57dc85907..0000000000
--- a/runtime/GC/Makefile
+++ /dev/null
@@ -1,19 +0,0 @@
-##===- runtime/GC/Makefile ---------------------------------*- Makefile -*-===##
-# 
-#                     The LLVM Compiler Infrastructure
-#
-# This file was developed by the LLVM research group and is distributed under
-# the University of Illinois Open Source License. See LICENSE.TXT for details.
-# 
-##===----------------------------------------------------------------------===##
-
-LEVEL = ../..
-PARALLEL_DIRS := SemiSpace
-EXTRA_DIST := gc_exported_symbols.lst
-include $(LEVEL)/Makefile.common
-
-# Install target for libraries: Copy into $LLVMGCCDIR/bytecode-libs
-#
-install::
-
-clean::
diff --git a/runtime/GC/SemiSpace/Makefile b/runtime/GC/SemiSpace/Makefile
deleted file mode 100644
index 6f8e54ce27..0000000000
--- a/runtime/GC/SemiSpace/Makefile
+++ /dev/null
@@ -1,19 +0,0 @@
-##===- runtime/GC/SemiSpace/Makefile -----------------------*- Makefile -*-===##
-# 
-#                     The LLVM Compiler Infrastructure
-#
-# This file was developed by the LLVM research group and is distributed under
-# the University of Illinois Open Source License. See LICENSE.TXT for details.
-# 
-##===----------------------------------------------------------------------===##
-
-LEVEL = ../../..
-BYTECODE_LIBRARY = 1
-LIBRARYNAME = gcsemispace
-BYTECODE_DESTINATION = $(CFERuntimeLibDir)
-EXPORTED_SYMBOL_FILE = $(PROJ_SRC_DIR)/../gc_exported_symbols.lst
-
-include $(LEVEL)/Makefile.common
-
-CompileCommonOpts := $(filter-out -pedantic,$(CompileCommonOpts))
-CompileCommonOpts := $(filter-out -Wno-long-long,$(CompileCommonOpts))
diff --git a/runtime/GC/SemiSpace/semispace.c b/runtime/GC/SemiSpace/semispace.c
deleted file mode 100644
index cb5864b0bd..0000000000
--- a/runtime/GC/SemiSpace/semispace.c
+++ /dev/null
@@ -1,122 +0,0 @@
-/*===-- semispace.c - Simple semi-space copying garbage collector ---------===*\
-|*
-|*                     The LLVM Compiler Infrastructure
-|*
-|* This file was developed by the LLVM research group and is distributed under
-|* the University of Illinois Open Source License. See LICENSE.TXT for details.
-|* 
-|*===----------------------------------------------------------------------===*|
-|* 
-|* This garbage collector is an extremely simple copying collector.  It splits
-|* the managed region of memory into two pieces: the current space to allocate
-|* from, and the copying space.  When the portion being allocated from fills up,
-|* a garbage collection cycle happens, which copies all live blocks to the other
-|* half of the managed space.
-|*
-\*===----------------------------------------------------------------------===*/
-
-#include "../GCInterface.h"
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-/* AllocPtr - This points to the next byte that is available for allocation.
- */
-static char *AllocPtr;
-
-/* AllocEnd - This points to the first byte not available for allocation.  When
- * AllocPtr passes this, we have run out of space.
- */
-static char *AllocEnd;
-
-/* CurSpace/OtherSpace - These pointers point to the two regions of memory that
- * we switch between.  The unallocated portion of the CurSpace is known to be
- * zero'd out, but the OtherSpace contains junk.
- */
-static void *CurSpace, *OtherSpace;
-
-/* SpaceSize - The size of each space. */
-static unsigned SpaceSize;
-
-/* llvm_gc_initialize - Allocate the two spaces that we plan to switch between.
- */
-void llvm_gc_initialize(unsigned InitialHeapSize) {
-  SpaceSize = InitialHeapSize/2;
-  CurSpace = AllocPtr = calloc(1, SpaceSize);
-  OtherSpace = malloc(SpaceSize);
-  AllocEnd = AllocPtr + SpaceSize;
-}
-
-/* We always want to inline the fast path, but never want to inline the slow
- * path.
- */
-void *llvm_gc_allocate(un