function.h (struct function): Remove calls_longjmp.

	* function.h (struct function): Remove calls_longjmp.
	(current_function_calls_longjmp): Delete.
	* tree.h (ECF_LONGJMP): Delete.
	(ECF_SIBCALL, ECF_PURE, ECF_SP_DEPRESSED, ECF_ALWAYS_RETURN)
	(ECF_LIBCALL_BLOCK): Everybody slide down one.
	(ECF_CONST, ECF_NORETURN, ECF_SIBCALL): Clarify comments.
	* builtins.c (expand_builtin_longjmp): Don't set
	current_function_calls_longjmp.
	* calls.c (special_function_p): Mark longjmp and siglongjmp
	with ECF_NORETURN, not ECF_LONGJMP.
	(emit_call_1, expand_call, emit_library_call_value_1):
	Don't check for ECF_LONGJMP.
	* tree-cfg.c (make_exit_edges, is_ctrl_altering_stmt)
	(need_fake_edge_p): Likewise.

	* config/avr/avr.h, config/ip2k/ip2k.h: Don't define NON_SAVING_SETJMP.
	* system.h: Poison NON_SAVING_SETJMP.
	* function.c (use_register_for_decl)
	* gcse.c (compute_hash_table_work, compute_store_table)
	* postreload-gcse.c (record_opr_changes)
	* reload.c (find_equiv_reg)
	* reload1.c (reload)
	* config/i386/i386.c (ix86_can_use_return_insn_p):
	Remove code conditional on NON_SAVING_SETJMP.
	* doc/tm.texi: Delete documentation of NON_SAVING_SETJMP.

	* config/i386/sysv3.h: Delete file.
	* config/i386/i386.c (ix86_svr3_asm_out_constructor): Delete.

From-SVN: r91101

4 files changed, 1 insertions, 135 deletions

diff --git a/gcc/config/avr/avr.h b/gcc/config/avr/avr.h
index 669ca36..f1c6da0 100644
--- a/gcc/config/avr/avr.h
+++ b/gcc/config/avr/avr.h
@@ -196,8 +196,6 @@ extern int avr_asm_only_p;
     1,1,/*  STACK */				\
     1,1 /* arg pointer */  }
 
-#define NON_SAVING_SETJMP 0
-
 #define REG_ALLOC_ORDER {			\
     24,25,					\
     18,19,					\
diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index adb4e5b..3fca2f7 100644
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -924,9 +924,6 @@ static bool ix86_must_pass_in_stack (enum machine_mode mode, tree type);
 static bool ix86_pass_by_reference (CUMULATIVE_ARGS *, enum machine_mode,
 				    tree, bool);
 
-#if defined (DO_GLOBAL_CTORS_BODY) && defined (HAS_INIT_SECTION)
-static void ix86_svr3_asm_out_constructor (rtx, int);
-#endif
 /* This function is only used on Solaris.  */
 static void i386_solaris_elf_named_section (const char *, unsigned int, tree)
   ATTRIBUTE_UNUSED;
@@ -3709,24 +3706,13 @@ symbolic_reference_mentioned_p (rtx op)
    body of a function.  Do this only if the epilogue is simple, needing a
    couple of insns.  Prior to reloading, we can't tell how many registers
    must be saved, so return 0 then.  Return 0 if there is no frame
-   marker to de-allocate.
-
-   If NON_SAVING_SETJMP is defined and true, then it is not possible
-   for the epilogue to be simple, so return 0.  This is a special case
-   since NON_SAVING_SETJMP will not cause regs_ever_live to change
-   until final, but jump_optimize may need to know sooner if a
-   `return' is OK.  */
+   marker to de-allocate.  */
 
 int
 ix86_can_use_return_insn_p (void)
 {
   struct ix86_frame frame;
 
-#ifdef NON_SAVING_SETJMP
-  if (NON_SAVING_SETJMP && current_function_calls_setjmp)
-    return 0;
-#endif
-
   if (! reload_completed || frame_pointer_needed)
     return 0;
 
@@ -14374,17 +14360,6 @@ ix86_rtx_costs (rtx x, int code, int outer_code, int *total)
     }
 }
 
-#if defined (DO_GLOBAL_CTORS_BODY) && defined (HAS_INIT_SECTION)
-static void
-ix86_svr3_asm_out_constructor (rtx symbol, int priority ATTRIBUTE_UNUSED)
-{
-  init_section ();
-  fputs ("\tpushl $", asm_out_file);
-  assemble_name (asm_out_file, XSTR (symbol, 0));
-  fputc ('\n', asm_out_file);
-}
-#endif
-
 #if TARGET_MACHO
 
 static int current_machopic_label_num;
diff --git a/gcc/config/i386/sysv3.h b/gcc/config/i386/sysv3.h
deleted file mode 100644
index b2643b1..0000000
--- a/gcc/config/i386/sysv3.h
+++ /dev/null
@@ -1,105 +0,0 @@
-/* Definitions for Intel 386 running system V.
-   Copyright (C) 1988, 1996, 2000, 2002 Free Software Foundation, Inc.
-
-This file is part of GCC.
-
-GCC is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
-
-GCC is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with GCC; see the file COPYING.  If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA.  */
-
-#define TARGET_VERSION fprintf (stderr, " (80386, ATT syntax)"); 
-
-/* Use crt1.o as a startup file and crtn.o as a closing file.  */
-
-#define STARTFILE_SPEC  \
-  "%{pg:gcrt1.o%s}%{!pg:%{posix:%{p:mcrtp1.o%s}%{!p:crtp1.o%s}}%{!posix:%{p:mcrt1.o%s}%{!p:crt1.o%s}}} crtbegin.o%s\
-   %{p:-L/usr/lib/libp}%{pg:-L/usr/lib/libp}"
-
-/* ??? There is a suggestion that -lg is needed here.
-   Does anyone know whether this is right?  */
-#define LIB_SPEC "%{posix:-lcposix} %{shlib:-lc_s} -lc crtend.o%s crtn.o%s"
-
-/* Specify predefined symbols in preprocessor.  */
-
-#define TARGET_OS_CPP_BUILTINS()		\
-  do						\
-    {						\
-	builtin_define_std ("unix");		\
-	builtin_assert ("system=svr3");		\
-    }						\
-  while (0)
-
-#define CPP_SPEC "%{posix:-D_POSIX_SOURCE}"
-
-/* Writing `int' for a bit-field forces int alignment for the structure.  */
-
-#define PCC_BITFIELD_TYPE_MATTERS 1
-
-/* We want to be able to get DBX debugging information via -gstabs.  */
-
-#define DBX_DEBUGGING_INFO 1
-
-#undef PREFERRED_DEBUGGING_TYPE
-#define PREFERRED_DEBUGGING_TYPE SDB_DEBUG
-
-/* longjmp may fail to restore the registers if called from the same
-   function that called setjmp.  To compensate, the compiler avoids
-   putting variables in registers in functions that use both setjmp
-   and longjmp.  */
-
-#define NON_SAVING_SETJMP \
-  (current_function_calls_setjmp && current_function_calls_longjmp)
-
-/* longjmp may fail to restore the stack pointer if the saved frame
-   pointer is the same as the caller's frame pointer.  Requiring a frame
-   pointer in any function that calls setjmp or longjmp avoids this
-   problem, unless setjmp and longjmp are called from the same function.
-   Since a frame pointer will be required in such a function, it is OK
-   that the stack pointer is not restored.  */
-
-#undef SUBTARGET_FRAME_POINTER_REQUIRED
-#define SUBTARGET_FRAME_POINTER_REQUIRED \
-  (current_function_calls_setjmp || current_function_calls_longjmp)
-
-/* Modify ASM_OUTPUT_LOCAL slightly to test -msvr3-shlib.  */
-#undef ASM_OUTPUT_LOCAL
-#define ASM_OUTPUT_LOCAL(FILE, NAME, SIZE, ROUNDED)	\
-  do {							\
-    int align = exact_log2 (ROUNDED);			\
-    if (align > 2) align = 2;				\
-    if (TARGET_SVR3_SHLIB)				\
-      data_section ();					\
-    else						\
-      bss_section ();					\
-    ASM_OUTPUT_ALIGN ((FILE), align == -1 ? 2 : align);	\
-    ASM_OUTPUT_LABEL ((FILE), (NAME));			\
-    fprintf ((FILE), "\t.set .,.+%u\n", (int)(ROUNDED));\
-  } while (0)
-
-/* Define a few machine-specific details of the implementation of
-   constructors.
-
-   The __CTORS_LIST__ goes in the .init section.  Define CTOR_LIST_BEGIN
-   and CTOR_LIST_END to contribute to the .init section an instruction to
-   push a word containing 0 (or some equivalent of that).  */
-
-#undef INIT_SECTION_ASM_OP
-#define INIT_SECTION_ASM_OP     "\t.section .init,\"x\""
-
-#define CTOR_LIST_BEGIN				\
-  asm (INIT_SECTION_ASM_OP);			\
-  asm ("pushl $0")
-#define CTOR_LIST_END CTOR_LIST_BEGIN
-
-#define TARGET_ASM_CONSTRUCTOR  ix86_svr3_asm_out_constructor
diff --git a/gcc/config/ip2k/ip2k.h b/gcc/config/ip2k/ip2k.h
index aecc8cd..0638198 100644
--- a/gcc/config/ip2k/ip2k.h
+++ b/gcc/config/ip2k/ip2k.h
@@ -184,8 +184,6 @@ extern int target_flags;
 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,/*r224..r255*/\
 1,1,1,1}
 
-#define NON_SAVING_SETJMP 0
-
 #define REG_ALLOC_ORDER {			\
     0x88,0x89,0x8a,0x8b,0x8c,0x8d,0x8e,0x8f,	\
     0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,	\