2010-09-19 Basile Starynkevitch <basile@starynkevitch.net>

	MELT branch merged with trunk rev 164348, with some improvements
	in gcc/melt-runtime.[ch]

2010-09-19  Basile Starynkevitch  <basile@starynkevitch.net>
	[[merged with trunk rev.164348, so improved MELT runtime!]]
	* gcc/melt-runtime.h: improved comments.
	(melt_debug_garbcoll, melt_debuggc_eprintf):  Moved from melt-runtime.c.
	(melt_obmag_string): New declaration.
	(struct meltobject_st, struct meltclosure_st, struct
	meltroutine_st, struct meltmixbigint_st, struct meltstring_st):
	using GTY variable_size and @@MELTGTY@@ comment.
	(melt_mark_special): added debug print.

	* gcc/melt-runtime.c:  Improved comments.
	Include bversion.h, realmpfr.h, gimple-pretty-print.h.
	(ggc_force_collect) Declared external.
	(melt_forward_counter): Added.
	(melt_obmag_string): New function.
	(melt_alptr_1, melt_alptr_2, melt_break_alptr_1_at)
	(melt_break_alptr_2_at, melt_break_alptr_1,melt_break_alptr_1)
	(melt_allocate_young_gc_zone, melt_free_young_gc_zone): New.
	(delete_special, meltgc_make_special): Improved debug printf and
	use melt_break_alptr_1...
	(ggc_alloc_*) macros defined for backport to GCC 4.5
	(melt_forwarded_copy): Don't clear the new destination zone in old
	GGC heap.
	(meltgc_add_out_raw_len): Use ggc_alloc_atomic.
	(meltgc_raw_new_mappointers, meltgc_raw_put_mappointers)
	(meltgc_raw_remove_mappointers): Corrected length argument to
	ggc_alloc_cleared_vec_entrypointermelt_st.
	(melt_really_initialize): Call melt_allocate_young_gc_zone.
	(melt_initialize):  Set flag_plugin_added.
	(melt_val2passflag): TODO_verify_loops only in GCC 4.5




git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/melt-branch@164424 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 17 insertions, 3 deletions

diff --git a/libcpp/configure.ac b/libcpp/configure.ac
index d520e933c90..8082117f2d6 100644
--- a/libcpp/configure.ac
+++ b/libcpp/configure.ac
@@ -45,6 +45,10 @@ ZW_CREATE_DEPDIR
 if test "$ENABLE_BUILD_WITH_CXX" = "no"; then
 ZW_PROG_COMPILER_DEPENDENCIES([CC])
 else
+AC_LANG_PUSH([C++])
+AC_COMPILE_IFELSE([[int i;]], [],
+		  [AC_MSG_ERROR([C++ compiler missing or inoperational])])
+AC_LANG_POP([C++])
 ZW_PROG_COMPILER_DEPENDENCIES([CXX])
 fi
 
@@ -66,12 +70,15 @@ else
 fi
 
 # Checks for typedefs, structures, and compiler characteristics.
+AC_C_BIGENDIAN
 AC_C_CONST
 AC_C_INLINE
 AC_FUNC_OBSTACK
 AC_TYPE_OFF_T
 AC_TYPE_SIZE_T
-AC_CHECK_TYPE(ssize_t, int)
+AC_TYPE_SSIZE_T
+AC_TYPE_UINTPTR_T
+AC_CHECK_TYPE(ptrdiff_t, int)
 AC_STRUCT_TM
 AC_CHECK_SIZEOF(int)
 AC_CHECK_SIZEOF(long)
@@ -81,8 +88,8 @@ define(libcpp_UNLOCKED_FUNCS, clearerr_unlocked feof_unlocked dnl
   fread_unlocked fwrite_unlocked getchar_unlocked getc_unlocked dnl
   putchar_unlocked putc_unlocked)
 AC_CHECK_FUNCS(libcpp_UNLOCKED_FUNCS)
-AC_CHECK_DECLS(m4_split(m4_normalize(abort asprintf basename errno getopt \
-  libcpp_UNLOCKED_FUNCS vasprintf)))
+AC_CHECK_DECLS([abort, asprintf, basename(char *), errno, getopt, vasprintf])
+AC_CHECK_DECLS(m4_split(m4_normalize(libcpp_UNLOCKED_FUNCS)))
 
 # Checks for library functions.
 AC_FUNC_ALLOCA
@@ -177,6 +184,13 @@ AC_DEFINE_UNQUOTED(HOST_WIDE_INT, $host_wide_int,
 [Define to the widest efficient host integer type at least
    as wide as the target's size_t type.])
 
+case $target in
+  i?86-* | x86_64-*)
+    AC_TRY_COMPILE([], [asm ("pcmpestri %0, %%xmm0, %%xmm1" : : "i"(0))],
+      [AC_DEFINE([HAVE_SSE4], [1],
+		 [Define to 1 if you can assemble SSE4 insns.])])
+esac
+
 # Output.
 
 AC_CONFIG_HEADERS(config.h:config.in, [echo timestamp > stamp-h1])