* optabs.c (set_user_assembler_libfunc): New function.
* expr.h (set_user_assembler_libfunc): New prototype.
* c-common.c: Include libfuncs.h.
(set_builtin_user_assembler_name): Call set_user_assembler_libfunc
for memcmp, memset, memcpy, memmove and abort.
* Makefile.in (c-common.o): Depend on libfuncs.h.
* gcc.dg/pr39443.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@144910
138bc75d-0d04-0410-961f-
82ee72b054a4
2009-03-17 Jakub Jelinek <jakub@redhat.com>
+ PR middle-end/39443
+ * optabs.c (set_user_assembler_libfunc): New function.
+ * expr.h (set_user_assembler_libfunc): New prototype.
+ * c-common.c: Include libfuncs.h.
+ (set_builtin_user_assembler_name): Call set_user_assembler_libfunc
+ for memcmp, memset, memcpy, memmove and abort.
+ * Makefile.in (c-common.o): Depend on libfuncs.h.
+
PR debug/39412
* dwarf2out.c (gen_inlined_enumeration_type_die,
gen_inlined_structure_type_die, gen_inlined_union_type_die,
$(TARGET_H) $(C_TREE_H) tree-iterator.h langhooks.h tree-mudflap.h \
intl.h opts.h $(REAL_H) $(CPPLIB_H) $(TREE_INLINE_H) $(HASHTAB_H) \
$(BUILTINS_DEF) $(CGRAPH_H) $(BASIC_BLOCK_H) $(TARGET_DEF_H) \
- $(GIMPLE_H)
+ $(GIMPLE_H) libfuncs.h
c-pretty-print.o : c-pretty-print.c $(C_PRETTY_PRINT_H) \
$(C_TREE_H) $(CONFIG_H) $(SYSTEM_H) coretypes.h $(TM_H) $(REAL_H) \
#include "target-def.h"
#include "gimple.h"
#include "fixed-value.h"
+#include "libfuncs.h"
cpp_reader *parse_in; /* Declared in c-pragma.h. */
builtin = built_in_decls [DECL_FUNCTION_CODE (decl)];
set_user_assembler_name (builtin, asmspec);
- if (DECL_FUNCTION_CODE (decl) == BUILT_IN_MEMCPY)
- init_block_move_fn (asmspec);
- else if (DECL_FUNCTION_CODE (decl) == BUILT_IN_MEMSET)
- init_block_clear_fn (asmspec);
+ switch (DECL_FUNCTION_CODE (decl))
+ {
+ case BUILT_IN_MEMCPY:
+ init_block_move_fn (asmspec);
+ memcpy_libfunc = set_user_assembler_libfunc ("memcpy", asmspec);
+ break;
+ case BUILT_IN_MEMSET:
+ init_block_clear_fn (asmspec);
+ memset_libfunc = set_user_assembler_libfunc ("memset", asmspec);
+ break;
+ case BUILT_IN_MEMMOVE:
+ memmove_libfunc = set_user_assembler_libfunc ("memmove", asmspec);
+ break;
+ case BUILT_IN_MEMCMP:
+ memcmp_libfunc = set_user_assembler_libfunc ("memcmp", asmspec);
+ break;
+ case BUILT_IN_ABORT:
+ abort_libfunc = set_user_assembler_libfunc ("abort", asmspec);
+ break;
+ default:
+ break;
+ }
}
/* The number of named compound-literals generated thus far. */
/* Definitions for code generation pass of GNU compiler.
Copyright (C) 1987, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
- 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
+ 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
Free Software Foundation, Inc.
This file is part of GCC.
/* Call this to initialize an optab function entry. */
extern rtx init_one_libfunc (const char *);
+extern rtx set_user_assembler_libfunc (const char *, const char *);
extern int vector_mode_valid_p (enum machine_mode);
return XEXP (DECL_RTL (decl), 0);
}
+/* Adjust the assembler name of libfunc NAME to ASMSPEC. */
+
+rtx
+set_user_assembler_libfunc (const char *name, const char *asmspec)
+{
+ tree id, decl;
+ void **slot;
+ hashval_t hash;
+
+ id = get_identifier (name);
+ hash = htab_hash_string (name);
+ slot = htab_find_slot_with_hash (libfunc_decls, id, hash, NO_INSERT);
+ gcc_assert (slot);
+ decl = (tree) *slot;
+ set_user_assembler_name (decl, asmspec);
+ return XEXP (DECL_RTL (decl), 0);
+}
+
/* Call this to reset the function entry for one optab (OPTABLE) in mode
MODE to NAME, which should be either 0 or a string constant. */
void
2009-03-17 Jakub Jelinek <jakub@redhat.com>
+ PR middle-end/39443
+ * gcc.dg/pr39443.c: New test.
+
PR debug/39412
* gcc.dg/debug/pr39412.c: New test.
--- /dev/null
+/* PR middle-end/39443 */
+/* { dg-do compile } */
+/* { dg-options "-O2" } */
+/* { dg-final { scan-assembler-not "memcmp" } } */
+
+typedef __SIZE_TYPE__ size_t;
+
+extern int memcmp (const void *s1, const void *s2, size_t n)
+ __attribute__ ((__nothrow__, __pure__));
+extern __typeof (memcmp) memcmp __asm__ ("memory_compare");
+
+int
+test (char *s, char *t, int cnt)
+{
+ if (__builtin_expect (cnt, 0))
+ return memcmp (s, t, cnt);
+ return 0;
+}