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riscv-gcc-1
Commit 21c7361e by Andreas Jaeger
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c-decl.c (c_decode_option): Remove support of -Wmissing-noreturn. 

	* c-decl.c (c_decode_option): Remove support of
	-Wmissing-noreturn.

	* toplev.c (documented_lang_options): Remove -Wmissing-noreturn.
	(W_options): Add -Wmissing-noreturn here.

	* flow.c: Define lang_missing_noreturn_ok_p.
	(check_function_return_warnings): Use it.

	* c-common.h: Declare lang_missing_noreturn_ok_p.

	* c-lang.c (c_missing_noreturn_ok_p): New function.
	(lang_init): Set lang_missing_noreturn_ok_p.

	* invoke.texi (Warning Options): Document this.

From-SVN: r38612
parent 42ded877
Showing with 150 additions and 113 deletions
gcc/ChangeLog
2001-01-02 Andreas Jaeger <aj@suse.de>
* c-decl.c (c_decode_option): Remove support of
-Wmissing-noreturn.
* toplev.c (documented_lang_options): Remove -Wmissing-noreturn.
(W_options): Add -Wmissing-noreturn here.
* flow.c: Define lang_missing_noreturn_ok_p.
(check_function_return_warnings): Use it.
* c-common.h: Declare lang_missing_noreturn_ok_p.
* c-lang.c (c_missing_noreturn_ok_p): New function.
(lang_init): Set lang_missing_noreturn_ok_p.
* invoke.texi (Warning Options): Document this.
2000-12-27 Phil Edwards <pme@sources.redhat.com> 2000-12-27 Phil Edwards <pme@sources.redhat.com>
* extend.texi (C++ Extensions): New node for C++ attributes; * extend.texi (C++ Extensions): New node for C++ attributes;
...@@ -113,13 +131,13 @@ Mon Jan 1 07:38:33 2001 Richard Kenner <kenner@vlsi1.ultra.nyu.edu> ...@@ -113,13 +131,13 @@ Mon Jan 1 07:38:33 2001 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* unroll.c (copy_loop_body, loop_iterations): Likewise. * unroll.c (copy_loop_body, loop_iterations): Likewise.
(remap_split_bivs): Likewise. (remap_split_bivs): Likewise.
2001-01-01 Michael Hayes <mhayes@redhat.com> 2001-01-01 Michael Hayes <mhayes@redhat.com>
* loop.c (loop_ivs_free): New function. * loop.c (loop_ivs_free): New function.
(strength_reduce): Break out from... (strength_reduce): Break out from...
2001-01-01 Michael Hayes <mhayes@redhat.com> 2001-01-01 Michael Hayes <mhayes@redhat.com>
* loop.h (struct iv): New. * loop.h (struct iv): New.
(REG_IV_TYPE, REG_IV_CLASS, REG_INFO): Modify to use 'struct iv'. (REG_IV_TYPE, REG_IV_CLASS, REG_INFO): Modify to use 'struct iv'.
(struct loop_ivs): Replace 'reg_iv_type', 'reg_iv_info', (struct loop_ivs): Replace 'reg_iv_type', 'reg_iv_info',
...@@ -139,7 +157,7 @@ Mon Jan 1 07:38:33 2001 Richard Kenner <kenner@vlsi1.ultra.nyu.edu> ...@@ -139,7 +157,7 @@ Mon Jan 1 07:38:33 2001 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* loop.h (REG_IV_CLASS): New accessor macro. * loop.h (REG_IV_CLASS): New accessor macro.
* loop.c (REG_IV_CLASS): Use it instead of reg_iv_class array. * loop.c (REG_IV_CLASS): Use it instead of reg_iv_class array.
* unroll.c (REG_IV_CLASS): Likewise. * unroll.c (REG_IV_CLASS): Likewise.
Sun Dec 31 19:20:51 2000 Richard Kenner <kenner@vlsi1.ultra.nyu.edu> Sun Dec 31 19:20:51 2000 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* dwarf2out.c (loc_descriptor_from_tree, case WITH_RECORD_EXPR): New. * dwarf2out.c (loc_descriptor_from_tree, case WITH_RECORD_EXPR): New.
...@@ -152,14 +170,14 @@ Sun Dec 31 19:20:51 2000 Richard Kenner <kenner@vlsi1.ultra.nyu.edu> ...@@ -152,14 +170,14 @@ Sun Dec 31 19:20:51 2000 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
(prescan_loop): Set pre_header_has_call in loop_info. (prescan_loop): Set pre_header_has_call in loop_info.
* loop.h (struct_iv_class): Add `final_value' and `all_reduced'. * loop.h (struct_iv_class): Add `final_value' and `all_reduced'.
(struct loop_info): Add `pre_header_has_call'. (struct loop_info): Add `pre_header_has_call'.
* loop.c (loop_bivs_find): Break out from strength_reduce. * loop.c (loop_bivs_find): Break out from strength_reduce.
(loop_bivs_init_find, loop_bivs_check, loop_givs_find): Likewise. (loop_bivs_init_find, loop_bivs_check, loop_givs_find): Likewise.
(loop_givs_check, loop_biv_eliminable_p): Likewise. (loop_givs_check, loop_biv_eliminable_p): Likewise.
* loop.c (LOOP_REG_LIFETIME, LOOP_REG_GLOBAL_P): Define. * loop.c (LOOP_REG_LIFETIME, LOOP_REG_GLOBAL_P): Define.
(scan_loop, record_giv): Use LOOP_REG_LIFETIME and LOOP_REG_GLOBAL_P. (scan_loop, record_giv): Use LOOP_REG_LIFETIME and LOOP_REG_GLOBAL_P.
* loop.h (REGNO_FIRST_LUID, REGNO_LAST_LUID): Define. * loop.h (REGNO_FIRST_LUID, REGNO_LAST_LUID): Define.
* loop.c (REGNO_FIRST_LUID, REGNO_LAST_LUID): Use in place of * loop.c (REGNO_FIRST_LUID, REGNO_LAST_LUID): Use in place of
direct access to uid_luid array. direct access to uid_luid array.
...@@ -198,7 +216,7 @@ Sun Dec 31 19:20:51 2000 Richard Kenner <kenner@vlsi1.ultra.nyu.edu> ...@@ -198,7 +216,7 @@ Sun Dec 31 19:20:51 2000 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
2000-12-30 Philip Blundell <philb@gnu.org> 2000-12-30 Philip Blundell <philb@gnu.org>
* config/arm/arm.c (arm_expand_prologue): Fix typos in error * config/arm/arm.c (arm_expand_prologue): Fix typos in error
message and comment. Note location of testcase for an unhandled message and comment. Note location of testcase for an unhandled
situation. situation.
...@@ -236,7 +254,7 @@ Sun Dec 31 19:20:51 2000 Richard Kenner <kenner@vlsi1.ultra.nyu.edu> ...@@ -236,7 +254,7 @@ Sun Dec 31 19:20:51 2000 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* stmt.c (expand_decl): Don't use assign_stack_temp in error case. * stmt.c (expand_decl): Don't use assign_stack_temp in error case.
(add_case_node): No need to copy nodes anymore. (add_case_node): No need to copy nodes anymore.
2000-12-30 Alexandre Oliva <aoliva@redhat.com> 2000-12-30 Alexandre Oliva <aoliva@redhat.com>
* config/sh/sh.c (split_branches): Don't dereference re-computed * config/sh/sh.c (split_branches): Don't dereference re-computed
...@@ -391,7 +409,7 @@ Sun Dec 31 19:20:51 2000 Richard Kenner <kenner@vlsi1.ultra.nyu.edu> ...@@ -391,7 +409,7 @@ Sun Dec 31 19:20:51 2000 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* calls.c (store_one_arg): If parm is passed both in stack and in * calls.c (store_one_arg): If parm is passed both in stack and in
register and offset is greater than reg_parm_stack_space, split register and offset is greater than reg_parm_stack_space, split
the offset and call emit_push_insn(). the offset and call emit_push_insn().
2000-12-27 Nick Clifton <nickc@redhat.com> 2000-12-27 Nick Clifton <nickc@redhat.com>
...@@ -417,7 +435,7 @@ Sun Dec 31 19:20:51 2000 Richard Kenner <kenner@vlsi1.ultra.nyu.edu> ...@@ -417,7 +435,7 @@ Sun Dec 31 19:20:51 2000 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
between conditionally executed insns. between conditionally executed insns.
(sched_analyze_1, sched_analyze_2, sched_analyze_insn): Don't free (sched_analyze_1, sched_analyze_2, sched_analyze_insn): Don't free
dependency lists if current insn is a COND_EXEC. dependency lists if current insn is a COND_EXEC.
2000-12-27 Geoffrey Keating <geoffk@redhat.com> 2000-12-27 Geoffrey Keating <geoffk@redhat.com>
* config/rs6000/rs6000.md (define_attr "length"): Correct * config/rs6000/rs6000.md (define_attr "length"): Correct
...@@ -478,7 +496,7 @@ Sun Dec 31 19:20:51 2000 Richard Kenner <kenner@vlsi1.ultra.nyu.edu> ...@@ -478,7 +496,7 @@ Sun Dec 31 19:20:51 2000 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
(arm_expand_prologue): If the link register has not been saved set (arm_expand_prologue): If the link register has not been saved set
lr_save_eliminated and emit a USE to prevent later passes from lr_save_eliminated and emit a USE to prevent later passes from
scavenging it. scavenging it.
* dwarf2out_frame_debug_expr: Allow the (scratch) frame * dwarf2out_frame_debug_expr: Allow the (scratch) frame
pointer to be initialised from the stack pointer plus a pointer to be initialised from the stack pointer plus a
constant. constant.
...@@ -513,7 +531,7 @@ Sun Dec 31 19:20:51 2000 Richard Kenner <kenner@vlsi1.ultra.nyu.edu> ...@@ -513,7 +531,7 @@ Sun Dec 31 19:20:51 2000 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* dwarf2out.c (file_info_cmp): Prototype. * dwarf2out.c (file_info_cmp): Prototype.
(dwarf2out_line): Hide variable `old_in_use'. (dwarf2out_line): Hide variable `old_in_use'.
* objc-act.c (objc_fatal): Delete. * objc-act.c (objc_fatal): Delete.
* sched-vis.c (visualize_stall_cycles): Remove unused variable. * sched-vis.c (visualize_stall_cycles): Remove unused variable.
...@@ -615,7 +633,7 @@ Sun Dec 31 19:20:51 2000 Richard Kenner <kenner@vlsi1.ultra.nyu.edu> ...@@ -615,7 +633,7 @@ Sun Dec 31 19:20:51 2000 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
(nop_m, nop_i, nop_f, nop_b, nop_x, cycle_display, cycle_display_1, (nop_m, nop_i, nop_f, nop_b, nop_x, cycle_display, cycle_display_1,
bundle_selector): New patterns. bundle_selector): New patterns.
(insn_group_barrier): Now has an operand. (insn_group_barrier): Now has an operand.
2000-12-21 DJ Delorie <dj@redhat.com> 2000-12-21 DJ Delorie <dj@redhat.com>
* dwarf2out.c (simple_decl_align_in_bits): new * dwarf2out.c (simple_decl_align_in_bits): new
...@@ -958,9 +976,9 @@ Sun Dec 17 12:41:48 2000 Richard Kenner <kenner@vlsi1.ultra.nyu.edu> ...@@ -958,9 +976,9 @@ Sun Dec 17 12:41:48 2000 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* config/c4x/c4x-protos.h (c4x_init_builtins): Add tree argument. * config/c4x/c4x-protos.h (c4x_init_builtins): Add tree argument.
* config/c4x/c4x.c (c4x_init_builtins): Add tree argument. * config/c4x/c4x.c (c4x_init_builtins): Add tree argument.
(c4x_output_ascii): Fix. (c4x_output_ascii): Fix.
2000-12-17 Michael Hayes <m.hayes@elec.canterbury.ac.nz> 2000-12-17 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl> Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
...@@ -979,7 +997,7 @@ Sun Dec 17 12:41:48 2000 Richard Kenner <kenner@vlsi1.ultra.nyu.edu> ...@@ -979,7 +997,7 @@ Sun Dec 17 12:41:48 2000 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
(*toieee_movqf_clobber, *frieee_movqf_clobber): Likewise. (*toieee_movqf_clobber, *frieee_movqf_clobber): Likewise.
2000-12-17 Michael Hayes <m.hayes@elec.canterbury.ac.nz> 2000-12-17 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
* libgcc2.h: Use Wtype for SItype and DWtype for DItype in prototypes. * libgcc2.h: Use Wtype for SItype and DWtype for DItype in prototypes.
* libgcc2.c (__absvsi2): Use Wtype and DWtype. * libgcc2.c (__absvsi2): Use Wtype and DWtype.
(__absvdi2, __addvsi3, __addvdi3, __subvsi3): Likewise. (__absvdi2, __addvsi3, __addvdi3, __subvsi3): Likewise.
...@@ -1021,8 +1039,8 @@ Sat Dec 16 10:41:11 2000 Richard Kenner <kenner@vlsi1.ultra.nyu.edu> ...@@ -1021,8 +1039,8 @@ Sat Dec 16 10:41:11 2000 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
(do_warning): New function. (do_warning): New function.
(finclude): Skip past the newline and increase the line number (finclude): Skip past the newline and increase the line number
before calling output_line_command. before calling output_line_command.
(do_line): Skip the new line after output_line_command. Don't (do_line): Skip the new line after output_line_command. Don't
pre-decrement the line number. pre-decrement the line number.
2000-12-15 Diego Novillo <dnovillo@redhat.com> 2000-12-15 Diego Novillo <dnovillo@redhat.com>
...@@ -1087,7 +1105,7 @@ Fri Dec 15 03:37:51 2000 J"orn Rennecke <amylaar@redhat.com> ...@@ -1087,7 +1105,7 @@ Fri Dec 15 03:37:51 2000 J"orn Rennecke <amylaar@redhat.com>
* alias.c (get_alias_set): Call record_component_aliases for * alias.c (get_alias_set): Call record_component_aliases for
COMPLEX_TYPE. COMPLEX_TYPE.
(record_component_aliases): Handle COMPLEX_TYPE. (record_component_aliases): Handle COMPLEX_TYPE.
2000-12-14 Kaveh R. Ghazi <ghazi@caip.rutgers.edu> 2000-12-14 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
* fixinc/gnu-regex.c: Disable NLS. * fixinc/gnu-regex.c: Disable NLS.
...@@ -1109,7 +1127,7 @@ Fri Dec 15 03:37:51 2000 J"orn Rennecke <amylaar@redhat.com> ...@@ -1109,7 +1127,7 @@ Fri Dec 15 03:37:51 2000 J"orn Rennecke <amylaar@redhat.com>
* gcc.c (cpp_options): Update to use '&'. * gcc.c (cpp_options): Update to use '&'.
(struct switchstr): Change type of validated to save space. (struct switchstr): Change type of validated to save space.
New member 'ordering'. New member 'ordering'.
(handle_braces, validate_switches): Update to handle '&'. (handle_braces, validate_switches): Update to handle '&'.
2000-12-13 Laurynas Biveinis <lauras@softhome.net> 2000-12-13 Laurynas Biveinis <lauras@softhome.net>
...@@ -1153,7 +1171,7 @@ Fri Dec 15 03:37:51 2000 J"orn Rennecke <amylaar@redhat.com> ...@@ -1153,7 +1171,7 @@ Fri Dec 15 03:37:51 2000 J"orn Rennecke <amylaar@redhat.com>
* tradcpp.c (special_symbol): Improve test for definedness, * tradcpp.c (special_symbol): Improve test for definedness,
though it is still not perfect. though it is still not perfect.
(do_define): Don't define illegal macro names. (do_define): Don't define illegal macro names.
2000-12-07 Aldy Hernandez <aldyh@redhat.com> 2000-12-07 Aldy Hernandez <aldyh@redhat.com>
* config/mips/elf.h (ASM_OUTPUT_SECTION_NAME): emit @nobits * config/mips/elf.h (ASM_OUTPUT_SECTION_NAME): emit @nobits
...@@ -1262,7 +1280,7 @@ Mon Dec 11 13:51:09 2000 Jeffrey A Law (law@cygnus.com) ...@@ -1262,7 +1280,7 @@ Mon Dec 11 13:51:09 2000 Jeffrey A Law (law@cygnus.com)
* cppfiles.c (stack_include_file): Update. * cppfiles.c (stack_include_file): Update.
(_cpp_pop_file_buffer): Update. (_cpp_pop_file_buffer): Update.
* cpphash.h (struct cpp_buffer): New members * cpphash.h (struct cpp_buffer): New members
include_stack_listed and type. include_stack_listed and type.
* cpplib.c (_cpp_handle_directive): Buffer->inc is not null. * cpplib.c (_cpp_handle_directive): Buffer->inc is not null.
(run_directive): Take buffer type. cpp_push_buffer cannot fail. (run_directive): Take buffer type. cpp_push_buffer cannot fail.
(_cpp_do__Pragma, cpp_define, _cpp_define_builtin, cpp_undef, (_cpp_do__Pragma, cpp_define, _cpp_define_builtin, cpp_undef,
...@@ -1296,7 +1314,7 @@ Mon Dec 11 13:51:09 2000 Jeffrey A Law (law@cygnus.com) ...@@ -1296,7 +1314,7 @@ Mon Dec 11 13:51:09 2000 Jeffrey A Law (law@cygnus.com)
2000-12-09 Richard Henderson <rth@redhat.com> 2000-12-09 Richard Henderson <rth@redhat.com>
* genrecog.c (validate_pattern): Verify that ZERO_EXTRACT and * genrecog.c (validate_pattern): Verify that ZERO_EXTRACT and
STRICT_LOW_PART as SET_DEST have in-out constraints. STRICT_LOW_PART as SET_DEST have in-out constraints.
2000-12-09 Joseph S. Myers <jsm28@cam.ac.uk> 2000-12-09 Joseph S. Myers <jsm28@cam.ac.uk>
...@@ -2065,8 +2083,8 @@ Tue Dec 5 20:09:14 2000 Jeffrey A Law (law@cygnus.com) ...@@ -2065,8 +2083,8 @@ Tue Dec 5 20:09:14 2000 Jeffrey A Law (law@cygnus.com)
2000-12-02 Geoffrey Keating <geoffk@redhat.com> 2000-12-02 Geoffrey Keating <geoffk@redhat.com>
* c-common.c (combine_strings): When the ISO C standard specifies * c-common.c (combine_strings): When the ISO C standard specifies
the maximum length of a string, it doesn't include the trailing the maximum length of a string, it doesn't include the trailing
zero byte. zero byte.
* cpplib.c (do_ifdef): Add check_eol() call. * cpplib.c (do_ifdef): Add check_eol() call.
(do_ifndef): Likewise. (do_ifndef): Likewise.
...@@ -2188,13 +2206,13 @@ Tue Dec 5 20:09:14 2000 Jeffrey A Law (law@cygnus.com) ...@@ -2188,13 +2206,13 @@ Tue Dec 5 20:09:14 2000 Jeffrey A Law (law@cygnus.com)
2000-12-01 Jim Blandy <jimb@redhat.com> 2000-12-01 Jim Blandy <jimb@redhat.com>
* dbxout.c (dbxout_parms): Correctly describe parameters passed by * dbxout.c (dbxout_parms): Correctly describe parameters passed by
invisible reference in registers, but then spilled to the stack. invisible reference in registers, but then spilled to the stack.
Remove code to emit a second stab for such parameters; it attempts Remove code to emit a second stab for such parameters; it attempts
to describe the value's location by introducing a synthetic C++ to describe the value's location by introducing a synthetic C++
`reference' type, and then saying the stack slot has that `reference' type, and then saying the stack slot has that
reference type. This loses type information (breaking GDB's reference type. This loses type information (breaking GDB's
`ptype' command, among other things) just to describe a location `ptype' command, among other things) just to describe a location
which stabs can represent correctly in other ways. which stabs can represent correctly in other ways.
2000-12-01 Alexandre Oliva <aoliva@redhat.com> 2000-12-01 Alexandre Oliva <aoliva@redhat.com>
...@@ -2749,7 +2767,7 @@ Mon Nov 27 17:29:44 2000 kaz Kojima <kkojima@rr.iij4u.or.jp> ...@@ -2749,7 +2767,7 @@ Mon Nov 27 17:29:44 2000 kaz Kojima <kkojima@rr.iij4u.or.jp>
canonicalizes conditional compares. canonicalizes conditional compares.
(arm_select_cc_mode): Likewise. (arm_select_cc_mode): Likewise.
* arm.md: Garbage collect some dead code. * arm.md: Garbage collect some dead code.
(cmp_and, cmp_ior): New patterns. (cmp_and, cmp_ior): New patterns.
(splitter for conditional move with inverted false): Use cond_exec (splitter for conditional move with inverted false): Use cond_exec
and handle unordered comparisons. and handle unordered comparisons.
...@@ -2766,7 +2784,7 @@ Mon Nov 27 17:22:56 MET 2000 Jan Hubicka <jh@suse.cz> ...@@ -2766,7 +2784,7 @@ Mon Nov 27 17:22:56 MET 2000 Jan Hubicka <jh@suse.cz>
arm_subsi3_insn, anddi_zesidi_di, arm_andsi3_insn, anddi_notdi_di, arm_subsi3_insn, anddi_zesidi_di, arm_andsi3_insn, anddi_notdi_di,
anddi_notzesidi_di, anddi_notsesidi_di, arm_iorsi3, anddi_notzesidi_di, anddi_notsesidi_di, arm_iorsi3,
one_cmpldi2): Merge with splitters to create define_insn_and_split one_cmpldi2): Merge with splitters to create define_insn_and_split
patterns. Remove redundant splits. patterns. Remove redundant splits.
(peephole2 for add:SI of invalid immediate): New. (peephole2 for add:SI of invalid immediate): New.
(peephole2 for minus:SI of invalid immediate): New. (peephole2 for minus:SI of invalid immediate): New.
(peephole2 for ior:SI of invalid immediate): New. (peephole2 for ior:SI of invalid immediate): New.
...@@ -7486,7 +7504,7 @@ Mon 25-Sep-2000 23:31:45 BST Neil Booth <neilb@earthling.net> ...@@ -7486,7 +7504,7 @@ Mon 25-Sep-2000 23:31:45 BST Neil Booth <neilb@earthling.net>
* dwarf2out.c (UNALIGNED_SHORT_ASM_OP, UNALIGNED_INT_ASM_OP, * dwarf2out.c (UNALIGNED_SHORT_ASM_OP, UNALIGNED_INT_ASM_OP,
UNALIGNED_DOUBLE_INT_ASM_OP, SECTION_ASM_OP, ASM_BYTE_OP): Here. UNALIGNED_DOUBLE_INT_ASM_OP, SECTION_ASM_OP, ASM_BYTE_OP): Here.
* dwarfout.c (FILE_ASM_OP, VERSION_ASM_OP, * dwarfout.c (FILE_ASM_OP, VERSION_ASM_OP,
UNALIGNED_SHORT_ASM_OP, UNALIGNED_INT_ASM_OP, ASM_BYTE_OP, UNALIGNED_SHORT_ASM_OP, UNALIGNED_INT_ASM_OP, ASM_BYTE_OP,
PUSHSECTION_ASM_OP, POPSECTION_ASM_OP): Here. PUSHSECTION_ASM_OP, POPSECTION_ASM_OP): Here.
* defaults.h (ASM_STABD_OP, EH_FRAME_SECTION_ASM_OP): Here. * defaults.h (ASM_STABD_OP, EH_FRAME_SECTION_ASM_OP): Here.
* varasm.c (ASM_STABS_OP): Here. * varasm.c (ASM_STABS_OP): Here.
......
gcc/c-common.h
/* Definitions for c-common.c. /* Definitions for c-common.c.
Copyright (C) 1987, 1993, 1994, 1995, 1997, 1998, Copyright (C) 1987, 1993, 1994, 1995, 1997, 1998,
1999, 2000 Free Software Foundation, Inc. 1999, 2000, 2001 Free Software Foundation, Inc.
This file is part of GNU CC. This file is part of GNU CC.
...@@ -222,7 +222,7 @@ typedef enum c_language_kind ...@@ -222,7 +222,7 @@ typedef enum c_language_kind
etc. */ etc. */
clk_cplusplus, /* ANSI/ISO C++ */ clk_cplusplus, /* ANSI/ISO C++ */
clk_objective_c /* Objective C */ clk_objective_c /* Objective C */
} }
c_language_kind; c_language_kind;
/* Information about a statement tree. */ /* Information about a statement tree. */
...@@ -244,10 +244,10 @@ struct stmt_tree_s { ...@@ -244,10 +244,10 @@ struct stmt_tree_s {
However, in order to represent aggregate initialization code as However, in order to represent aggregate initialization code as
tree structure, we use statement-expressions. The statements tree structure, we use statement-expressions. The statements
within the statement expression should not result in cleanups within the statement expression should not result in cleanups
being run until the entire enclosing statement is complete. being run until the entire enclosing statement is complete.
This flag has no effect in C. */ This flag has no effect in C. */
int stmts_are_full_exprs_p; int stmts_are_full_exprs_p;
}; };
typedef struct stmt_tree_s *stmt_tree; typedef struct stmt_tree_s *stmt_tree;
...@@ -294,10 +294,15 @@ extern void (*lang_expand_stmt) PARAMS ((tree)); ...@@ -294,10 +294,15 @@ extern void (*lang_expand_stmt) PARAMS ((tree));
extern void (*lang_expand_decl_stmt) PARAMS ((tree)); extern void (*lang_expand_decl_stmt) PARAMS ((tree));
extern void (*lang_expand_function_end) PARAMS ((void)); extern void (*lang_expand_function_end) PARAMS ((void));
/* Callback that determines if it's ok for a function to have no
noreturn attribute. */
extern int (*lang_missing_noreturn_ok_p) PARAMS ((tree));
/* The type of a function that walks over tree structure. */ /* The type of a function that walks over tree structure. */
typedef tree (*walk_tree_fn) PARAMS ((tree *, typedef tree (*walk_tree_fn) PARAMS ((tree *,
int *, int *,
void *)); void *));
extern stmt_tree current_stmt_tree PARAMS ((void)); extern stmt_tree current_stmt_tree PARAMS ((void));
...@@ -436,7 +441,7 @@ extern int warn_long_long; ...@@ -436,7 +441,7 @@ extern int warn_long_long;
descending through array types. Note that this macro evaluates its descending through array types. Note that this macro evaluates its
arguments mor than once. */ arguments mor than once. */
#define C_TYPE_QUALS(TYPE) \ #define C_TYPE_QUALS(TYPE) \
(TYPE_QUALS ((TREE_CODE (TYPE) == ARRAY_TYPE \ (TYPE_QUALS ((TREE_CODE (TYPE) == ARRAY_TYPE \
&& c_language == clk_cplusplus) \ && c_language == clk_cplusplus) \
? strip_array_types (TYPE) : TYPE)) ? strip_array_types (TYPE) : TYPE))
...@@ -595,7 +600,7 @@ extern tree strip_array_types PARAMS ((tree)); ...@@ -595,7 +600,7 @@ extern tree strip_array_types PARAMS ((tree));
#define ASM_CLOBBERS(NODE) TREE_OPERAND (ASM_STMT_CHECK (NODE), 4) #define ASM_CLOBBERS(NODE) TREE_OPERAND (ASM_STMT_CHECK (NODE), 4)
/* DECL_STMT accessor. This gives access to the DECL associated with /* DECL_STMT accessor. This gives access to the DECL associated with
the given declaration statement. */ the given declaration statement. */
#define DECL_STMT_DECL(NODE) TREE_OPERAND (DECL_STMT_CHECK (NODE), 0) #define DECL_STMT_DECL(NODE) TREE_OPERAND (DECL_STMT_CHECK (NODE), 0)
/* STMT_EXPR accessor. */ /* STMT_EXPR accessor. */
...@@ -607,7 +612,7 @@ extern tree strip_array_types PARAMS ((tree)); ...@@ -607,7 +612,7 @@ extern tree strip_array_types PARAMS ((tree));
/* Nonzero if this SCOPE_STMT is for the beginning of a scope. */ /* Nonzero if this SCOPE_STMT is for the beginning of a scope. */
#define SCOPE_BEGIN_P(NODE) \ #define SCOPE_BEGIN_P(NODE) \
(TREE_LANG_FLAG_0 (SCOPE_STMT_CHECK (NODE))) (TREE_LANG_FLAG_0 (SCOPE_STMT_CHECK (NODE)))
/* Nonzero if this SCOPE_STMT is for the end of a scope. */ /* Nonzero if this SCOPE_STMT is for the end of a scope. */
#define SCOPE_END_P(NODE) \ #define SCOPE_END_P(NODE) \
...@@ -629,7 +634,7 @@ extern tree strip_array_types PARAMS ((tree)); ...@@ -629,7 +634,7 @@ extern tree strip_array_types PARAMS ((tree));
/* Nonzero for a SCOPE_STMT if this statement is for a partial scope. /* Nonzero for a SCOPE_STMT if this statement is for a partial scope.
For example, in: For example, in:
S s; S s;
l: l:
S s2; S s2;
...@@ -654,12 +659,12 @@ extern tree strip_array_types PARAMS ((tree)); ...@@ -654,12 +659,12 @@ extern tree strip_array_types PARAMS ((tree));
/* If non-zero, the STMT_LINENO for NODE is the line at which the /* If non-zero, the STMT_LINENO for NODE is the line at which the
function ended. */ function ended. */
#define STMT_LINENO_FOR_FN_P(NODE) \ #define STMT_LINENO_FOR_FN_P(NODE) \
(TREE_LANG_FLAG_2 ((NODE))) (TREE_LANG_FLAG_2 ((NODE)))
/* Nonzero if we want the new ISO rules for pushing a new scope for `for' /* Nonzero if we want the new ISO rules for pushing a new scope for `for'
initialization variables. */ initialization variables. */
#define NEW_FOR_SCOPE_P(NODE) (TREE_LANG_FLAG_0 (NODE)) #define NEW_FOR_SCOPE_P(NODE) (TREE_LANG_FLAG_0 (NODE))
#define DEFTREECODE(SYM, NAME, TYPE, LENGTH) SYM, #define DEFTREECODE(SYM, NAME, TYPE, LENGTH) SYM,
...@@ -754,7 +759,7 @@ extern void extract_interface_info PARAMS ((void)); ...@@ -754,7 +759,7 @@ extern void extract_interface_info PARAMS ((void));
extern void mark_c_language_function PARAMS ((struct language_function *)); extern void mark_c_language_function PARAMS ((struct language_function *));
extern int case_compare PARAMS ((splay_tree_key, extern int case_compare PARAMS ((splay_tree_key,
splay_tree_key)); splay_tree_key));
extern tree c_add_case_label PARAMS ((splay_tree, extern tree c_add_case_label PARAMS ((splay_tree,
...@@ -807,5 +812,3 @@ struct c_fileinfo *get_fileinfo PARAMS ((const char *)); ...@@ -807,5 +812,3 @@ struct c_fileinfo *get_fileinfo PARAMS ((const char *));
extern void dump_time_statistics PARAMS ((void)); extern void dump_time_statistics PARAMS ((void));
#endif #endif
gcc/c-decl.c
/* Process declarations and variables for C compiler. /* Process declarations and variables for C compiler.
Copyright (C) 1988, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000 Copyright (C) 1988, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
Free Software Foundation, Inc. 2001 Free Software Foundation, Inc.
This file is part of GNU CC. This file is part of GNU CC.
...@@ -665,8 +665,6 @@ c_decode_option (argc, argv) ...@@ -665,8 +665,6 @@ c_decode_option (argc, argv)
warn_bad_function_cast = 1; warn_bad_function_cast = 1;
else if (!strcmp (p, "-Wno-bad-function-cast")) else if (!strcmp (p, "-Wno-bad-function-cast"))
warn_bad_function_cast = 0; warn_bad_function_cast = 0;
else if (!strcmp (p, "-Wmissing-noreturn"))
warn_missing_noreturn = 1;
else if (!strcmp (p, "-Wno-missing-noreturn")) else if (!strcmp (p, "-Wno-missing-noreturn"))
warn_missing_noreturn = 0; warn_missing_noreturn = 0;
else if (!strcmp (p, "-Wmissing-format-attribute")) else if (!strcmp (p, "-Wmissing-format-attribute"))
...@@ -4487,7 +4485,7 @@ grokdeclarator (declarator, declspecs, decl_context, initialized) ...@@ -4487,7 +4485,7 @@ grokdeclarator (declarator, declspecs, decl_context, initialized)
else if (decl_context == FIELD) else if (decl_context == FIELD)
{ {
/* ??? Need to check somewhere that this is a structure /* ??? Need to check somewhere that this is a structure
and not a union, that this field is last, and that and not a union, that this field is last, and that
this structure has at least one other named member. */ this structure has at least one other named member. */
if (pedantic && !flag_isoc99 && !in_system_header) if (pedantic && !flag_isoc99 && !in_system_header)
...@@ -6515,7 +6513,7 @@ store_parm_decls () ...@@ -6515,7 +6513,7 @@ store_parm_decls ()
init_function_start (fndecl, input_filename, lineno); init_function_start (fndecl, input_filename, lineno);
/* Begin the statement tree for this function. */ /* Begin the statement tree for this function. */
DECL_LANG_SPECIFIC (current_function_decl) DECL_LANG_SPECIFIC (current_function_decl)
=((struct lang_decl *) ggc_alloc (sizeof (struct lang_decl))); =((struct lang_decl *) ggc_alloc (sizeof (struct lang_decl)));
begin_stmt_tree (&DECL_SAVED_TREE (current_function_decl)); begin_stmt_tree (&DECL_SAVED_TREE (current_function_decl));
...@@ -6903,7 +6901,7 @@ c_expand_body (fndecl, nested_p) ...@@ -6903,7 +6901,7 @@ c_expand_body (fndecl, nested_p)
pop_function_context (); pop_function_context ();
} }
} }
} }
/* Check the declarations given in a for-loop for satisfying the C99 /* Check the declarations given in a for-loop for satisfying the C99
...@@ -6979,7 +6977,7 @@ push_c_function_context (f) ...@@ -6979,7 +6977,7 @@ push_c_function_context (f)
struct function *f; struct function *f;
{ {
struct c_language_function *p; struct c_language_function *p;
p = ((struct c_language_function *) p = ((struct c_language_function *)
xmalloc (sizeof (struct c_language_function))); xmalloc (sizeof (struct c_language_function)));
f->language = (struct language_function *) p; f->language = (struct language_function *) p;
...@@ -7001,7 +6999,7 @@ void ...@@ -7001,7 +6999,7 @@ void
pop_c_function_context (f) pop_c_function_context (f)
struct function *f; struct function *f;
{ {
struct c_language_function *p struct c_language_function *p
= (struct c_language_function *) f->language; = (struct c_language_function *) f->language;
tree link; tree link;
...@@ -7042,7 +7040,7 @@ void ...@@ -7042,7 +7040,7 @@ void
mark_c_function_context (f) mark_c_function_context (f)
struct function *f; struct function *f;
{ {
struct c_language_function *p struct c_language_function *p
= (struct c_language_function *) f->language; = (struct c_language_function *) f->language;
if (p == 0) if (p == 0)
...@@ -7158,12 +7156,12 @@ c_begin_compound_stmt () ...@@ -7158,12 +7156,12 @@ c_begin_compound_stmt ()
stmt = add_stmt (build_stmt (COMPOUND_STMT, NULL_TREE)); stmt = add_stmt (build_stmt (COMPOUND_STMT, NULL_TREE));
/* If we haven't already declared __FUNCTION__ and its ilk then this /* If we haven't already declared __FUNCTION__ and its ilk then this
is the opening curly brace of the function. Declare them now. */ is the opening curly brace of the function. Declare them now. */
if (!c_function_name_declared_p) if (!c_function_name_declared_p)
{ {
c_function_name_declared_p = 1; c_function_name_declared_p = 1;
declare_function_name (); declare_function_name ();
} }
return stmt; return stmt;
} }
...@@ -7175,7 +7173,7 @@ c_expand_decl_stmt (t) ...@@ -7175,7 +7173,7 @@ c_expand_decl_stmt (t)
tree t; tree t;
{ {
tree decl = DECL_STMT_DECL (t); tree decl = DECL_STMT_DECL (t);
/* Expand nested functions. */ /* Expand nested functions. */
if (TREE_CODE (decl) == FUNCTION_DECL if (TREE_CODE (decl) == FUNCTION_DECL
&& DECL_CONTEXT (decl) == current_function_decl && DECL_CONTEXT (decl) == current_function_decl
......
gcc/c-lang.c
/* Language-specific hook definitions for C front end. /* Language-specific hook definitions for C front end.
Copyright (C) 1991, 1995, 1997, 1998, Copyright (C) 1991, 1995, 1997, 1998,
1999, 2000 Free Software Foundation, Inc. 1999, 2000, 2001 Free Software Foundation, Inc.
This file is part of GNU CC. This file is part of GNU CC.
...@@ -37,10 +37,11 @@ Boston, MA 02111-1307, USA. */ ...@@ -37,10 +37,11 @@ Boston, MA 02111-1307, USA. */
#include "cpplib.h" #include "cpplib.h"
static int c_tree_printer PARAMS ((output_buffer *)); static int c_tree_printer PARAMS ((output_buffer *));
static int c_missing_noreturn_ok_p PARAMS ((tree));
/* Each of the functions defined here /* Each of the functions defined here
is an alternative to a function in objc-actions.c. */ is an alternative to a function in objc-actions.c. */
int int
lang_decode_option (argc, argv) lang_decode_option (argc, argv)
int argc; int argc;
...@@ -81,6 +82,7 @@ lang_init () ...@@ -81,6 +82,7 @@ lang_init ()
lang_safe_from_p = &c_safe_from_p; lang_safe_from_p = &c_safe_from_p;
lang_printer = &c_tree_printer; lang_printer = &c_tree_printer;
lang_expand_decl_stmt = &c_expand_decl_stmt; lang_expand_decl_stmt = &c_expand_decl_stmt;
lang_missing_noreturn_ok_p = &c_missing_noreturn_ok_p;
c_parse_init (); c_parse_init ();
} }
...@@ -186,8 +188,8 @@ start_cdtor (method_type) ...@@ -186,8 +188,8 @@ start_cdtor (method_type)
tree body; tree body;
start_function (void_list_node_1, start_function (void_list_node_1,
build_parse_node (CALL_EXPR, fnname, build_parse_node (CALL_EXPR, fnname,
tree_cons (NULL_TREE, NULL_TREE, tree_cons (NULL_TREE, NULL_TREE,
void_list_node_1), void_list_node_1),
NULL_TREE), NULL_TREE),
NULL_TREE, NULL_TREE); NULL_TREE, NULL_TREE);
...@@ -213,11 +215,11 @@ finish_cdtor (body) ...@@ -213,11 +215,11 @@ finish_cdtor (body)
tree block; tree block;
scope = add_scope_stmt (/*begin_p=*/0, /*partial_p=*/0); scope = add_scope_stmt (/*begin_p=*/0, /*partial_p=*/0);
block = poplevel (0, 0, 0); block = poplevel (0, 0, 0);
SCOPE_STMT_BLOCK (TREE_PURPOSE (scope)) = block; SCOPE_STMT_BLOCK (TREE_PURPOSE (scope)) = block;
SCOPE_STMT_BLOCK (TREE_VALUE (scope)) = block; SCOPE_STMT_BLOCK (TREE_VALUE (scope)) = block;
RECHAIN_STMTS (body, COMPOUND_BODY (body)); RECHAIN_STMTS (body, COMPOUND_BODY (body));
finish_function (0); finish_function (0);
} }
...@@ -252,7 +254,7 @@ finish_file () ...@@ -252,7 +254,7 @@ finish_file ()
finish_cdtor (body); finish_cdtor (body);
} }
#endif #endif
if (back_end_hook) if (back_end_hook)
(*back_end_hook) (getdecls ()); (*back_end_hook) (getdecls ());
...@@ -294,3 +296,12 @@ c_tree_printer (buffer) ...@@ -294,3 +296,12 @@ c_tree_printer (buffer)
return 0; return 0;
} }
} }
static int
c_missing_noreturn_ok_p (decl)
tree decl;
{
/* A missing noreturn is not ok for freestanding implementations and
ok for the `main' function in hosted implementations. */
return flag_hosted && MAIN_NAME_P (DECL_ASSEMBLER_NAME (decl));
}
gcc/flow.c
/* Data flow analysis for GNU compiler. /* Data flow analysis for GNU compiler.
Copyright (C) 1987, 1988, 1992, 1993, 1994, 1995, 1996, 1997, 1998, Copyright (C) 1987, 1988, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
1999, 2000 Free Software Foundation, Inc. 1999, 2000, 2001 Free Software Foundation, Inc.
This file is part of GNU CC. This file is part of GNU CC.
...@@ -251,6 +251,10 @@ regset regs_live_at_setjmp; ...@@ -251,6 +251,10 @@ regset regs_live_at_setjmp;
are another pair, etc. */ are another pair, etc. */
rtx regs_may_share; rtx regs_may_share;
/* Callback that determines if it's ok for a function to have no
noreturn attribute. */
int (*lang_missing_noreturn_ok_p) PARAMS ((tree));
/* Set of registers that may be eliminable. These are handled specially /* Set of registers that may be eliminable. These are handled specially
in updating regs_ever_live. */ in updating regs_ever_live. */
...@@ -424,15 +428,15 @@ static void invalidate_mems_from_autoinc PARAMS ((struct propagate_block_info *, ...@@ -424,15 +428,15 @@ static void invalidate_mems_from_autoinc PARAMS ((struct propagate_block_info *,
static void invalidate_mems_from_set PARAMS ((struct propagate_block_info *, static void invalidate_mems_from_set PARAMS ((struct propagate_block_info *,
rtx)); rtx));
static void remove_fake_successors PARAMS ((basic_block)); static void remove_fake_successors PARAMS ((basic_block));
static void flow_nodes_print PARAMS ((const char *, const sbitmap, static void flow_nodes_print PARAMS ((const char *, const sbitmap,
FILE *)); FILE *));
static void flow_edge_list_print PARAMS ((const char *, const edge *, static void flow_edge_list_print PARAMS ((const char *, const edge *,
int, FILE *)); int, FILE *));
static void flow_loops_cfg_dump PARAMS ((const struct loops *, static void flow_loops_cfg_dump PARAMS ((const struct loops *,
FILE *)); FILE *));
static int flow_loop_nested_p PARAMS ((struct loop *, static int flow_loop_nested_p PARAMS ((struct loop *,
struct loop *)); struct loop *));
static int flow_loop_entry_edges_find PARAMS ((basic_block, const sbitmap, static int flow_loop_entry_edges_find PARAMS ((basic_block, const sbitmap,
edge **)); edge **));
static int flow_loop_exit_edges_find PARAMS ((const sbitmap, edge **)); static int flow_loop_exit_edges_find PARAMS ((const sbitmap, edge **));
static int flow_loop_nodes_find PARAMS ((basic_block, basic_block, sbitmap)); static int flow_loop_nodes_find PARAMS ((basic_block, basic_block, sbitmap));
...@@ -530,7 +534,9 @@ check_function_return_warnings () ...@@ -530,7 +534,9 @@ check_function_return_warnings ()
{ {
if (warn_missing_noreturn if (warn_missing_noreturn
&& !TREE_THIS_VOLATILE (cfun->decl) && !TREE_THIS_VOLATILE (cfun->decl)
&& EXIT_BLOCK_PTR->pred == NULL) && EXIT_BLOCK_PTR->pred == NULL
&& (lang_missing_noreturn_ok_p
&& !lang_missing_noreturn_ok_p (cfun->decl)))
warning ("function might be possible candidate for attribute `noreturn'"); warning ("function might be possible candidate for attribute `noreturn'");
/* If we have a path to EXIT, then we do return. */ /* If we have a path to EXIT, then we do return. */
...@@ -1537,7 +1543,7 @@ split_block (bb, insn) ...@@ -1537,7 +1543,7 @@ split_block (bb, insn)
/* Redirect the src of the successor edges of bb to point to new_bb. */ /* Redirect the src of the successor edges of bb to point to new_bb. */
for (e = new_bb->succ; e; e = e->succ_next) for (e = new_bb->succ; e; e = e->succ_next)
e->src = new_bb; e->src = new_bb;
/* Place the new block just after the block being split. */ /* Place the new block just after the block being split. */
VARRAY_GROW (basic_block_info, ++n_basic_blocks); VARRAY_GROW (basic_block_info, ++n_basic_blocks);
...@@ -1576,7 +1582,7 @@ split_block (bb, insn) ...@@ -1576,7 +1582,7 @@ split_block (bb, insn)
propagate_block to determine which registers are live. */ propagate_block to determine which registers are live. */
COPY_REG_SET (new_bb->global_live_at_start, bb->global_live_at_end); COPY_REG_SET (new_bb->global_live_at_start, bb->global_live_at_end);
propagate_block (new_bb, new_bb->global_live_at_start, NULL, NULL, 0); propagate_block (new_bb, new_bb->global_live_at_start, NULL, NULL, 0);
COPY_REG_SET (bb->global_live_at_end, COPY_REG_SET (bb->global_live_at_end,
new_bb->global_live_at_start); new_bb->global_live_at_start);
} }
...@@ -3382,7 +3388,7 @@ calculate_global_regs_live (blocks_in, blocks_out, flags) ...@@ -3382,7 +3388,7 @@ calculate_global_regs_live (blocks_in, blocks_out, flags)
SET_REGNO_REG_SET (new_live_at_end, STACK_POINTER_REGNUM); SET_REGNO_REG_SET (new_live_at_end, STACK_POINTER_REGNUM);
/* Before reload, there are a few registers that must be forced /* Before reload, there are a few registers that must be forced
live everywhere -- which might not already be the case for live everywhere -- which might not already be the case for
blocks within infinite loops. */ blocks within infinite loops. */
if (! reload_completed) if (! reload_completed)
{ {
...@@ -4200,7 +4206,7 @@ insn_dead_p (pbi, x, call_ok, notes) ...@@ -4200,7 +4206,7 @@ insn_dead_p (pbi, x, call_ok, notes)
#ifdef AUTO_INC_DEC #ifdef AUTO_INC_DEC
/* Check if memory reference matches an auto increment. Only /* Check if memory reference matches an auto increment. Only
post increment/decrement or modify are valid. */ post increment/decrement or modify are valid. */
if (GET_MODE (mem) == GET_MODE (r) if (GET_MODE (mem) == GET_MODE (r)
&& (GET_CODE (XEXP (mem, 0)) == POST_DEC && (GET_CODE (XEXP (mem, 0)) == POST_DEC
|| GET_CODE (XEXP (mem, 0)) == POST_INC || GET_CODE (XEXP (mem, 0)) == POST_INC
|| GET_CODE (XEXP (mem, 0)) == POST_MODIFY) || GET_CODE (XEXP (mem, 0)) == POST_MODIFY)
...@@ -4978,7 +4984,7 @@ flush_reg_cond_reg_1 (node, data) ...@@ -4978,7 +4984,7 @@ flush_reg_cond_reg_1 (node, data)
the in-order traversal. */ the in-order traversal. */
if (xdata[1] >= (int) node->key) if (xdata[1] >= (int) node->key)
return 0; return 0;
/* Splice out portions of the expression that refer to regno. */ /* Splice out portions of the expression that refer to regno. */
rcli = (struct reg_cond_life_info *) node->value; rcli = (struct reg_cond_life_info *) node->value;
rcli->condition = elim_reg_cond (rcli->condition, regno); rcli->condition = elim_reg_cond (rcli->condition, regno);
...@@ -6599,7 +6605,7 @@ count_or_remove_death_notes (blocks, kill) ...@@ -6599,7 +6605,7 @@ count_or_remove_death_notes (blocks, kill)
/* Update insns block within BB. */ /* Update insns block within BB. */
void void
update_bb_for_insn (bb) update_bb_for_insn (bb)
basic_block bb; basic_block bb;
{ {
...@@ -7089,7 +7095,7 @@ verify_edge_list (f, elist) ...@@ -7089,7 +7095,7 @@ verify_edge_list (f, elist)
if (EDGE_INDEX (elist, BASIC_BLOCK (pred), BASIC_BLOCK (succ)) if (EDGE_INDEX (elist, BASIC_BLOCK (pred), BASIC_BLOCK (succ))
!= EDGE_INDEX_NO_EDGE && found_edge == 0) != EDGE_INDEX_NO_EDGE && found_edge == 0)
fprintf (f, "*** Edge (%d, %d) has index %d, but there is no edge\n", fprintf (f, "*** Edge (%d, %d) has index %d, but there is no edge\n",
pred, succ, EDGE_INDEX (elist, BASIC_BLOCK (pred), pred, succ, EDGE_INDEX (elist, BASIC_BLOCK (pred),
BASIC_BLOCK (succ))); BASIC_BLOCK (succ)));
} }
for (succ = 0; succ < n_basic_blocks; succ++) for (succ = 0; succ < n_basic_blocks; succ++)
...@@ -7334,7 +7340,7 @@ redirect_edge_pred (e, new_pred) ...@@ -7334,7 +7340,7 @@ redirect_edge_pred (e, new_pred)
/* Dump the list of basic blocks in the bitmap NODES. */ /* Dump the list of basic blocks in the bitmap NODES. */
static void static void
flow_nodes_print (str, nodes, file) flow_nodes_print (str, nodes, file)
const char *str; const char *str;
const sbitmap nodes; const sbitmap nodes;
...@@ -7353,7 +7359,7 @@ flow_nodes_print (str, nodes, file) ...@@ -7353,7 +7359,7 @@ flow_nodes_print (str, nodes, file)
/* Dump the list of edges in the array EDGE_LIST. */ /* Dump the list of edges in the array EDGE_LIST. */
static void static void
flow_edge_list_print (str, edge_list, num_edges, file) flow_edge_list_print (str, edge_list, num_edges, file)
const char *str; const char *str;
const edge *edge_list; const edge *edge_list;
...@@ -7467,7 +7473,7 @@ flow_loop_dump (loop, file, loop_dump_aux, verbose) ...@@ -7467,7 +7473,7 @@ flow_loop_dump (loop, file, loop_dump_aux, verbose)
/* Dump the loop information specified by LOOPS to the stream FILE, /* Dump the loop information specified by LOOPS to the stream FILE,
using auxiliary dump callback function LOOP_DUMP_AUX if non null. */ using auxiliary dump callback function LOOP_DUMP_AUX if non null. */
void void
flow_loops_dump (loops, file, loop_dump_aux, verbose) flow_loops_dump (loops, file, loop_dump_aux, verbose)
const struct loops *loops; const struct loops *loops;
FILE *file; FILE *file;
...@@ -7481,7 +7487,7 @@ flow_loops_dump (loops, file, loop_dump_aux, verbose) ...@@ -7481,7 +7487,7 @@ flow_loops_dump (loops, file, loop_dump_aux, verbose)
if (! num_loops || ! file) if (! num_loops || ! file)
return; return;
fprintf (file, ";; %d loops found, %d levels\n", fprintf (file, ";; %d loops found, %d levels\n",
num_loops, loops->levels); num_loops, loops->levels);
for (i = 0; i < num_loops; i++) for (i = 0; i < num_loops; i++)
...@@ -7510,7 +7516,7 @@ flow_loops_dump (loops, file, loop_dump_aux, verbose) ...@@ -7510,7 +7516,7 @@ flow_loops_dump (loops, file, loop_dump_aux, verbose)
must be disjoint. */ must be disjoint. */
disjoint = ! flow_loop_nested_p (smaller ? loop : oloop, disjoint = ! flow_loop_nested_p (smaller ? loop : oloop,
smaller ? oloop : loop); smaller ? oloop : loop);
fprintf (file, fprintf (file,
";; loop header %d shared by loops %d, %d %s\n", ";; loop header %d shared by loops %d, %d %s\n",
loop->header->index, i, j, loop->header->index, i, j,
disjoint ? "disjoint" : "nested"); disjoint ? "disjoint" : "nested");
...@@ -7586,7 +7592,7 @@ flow_loop_entry_edges_find (header, nodes, entry_edges) ...@@ -7586,7 +7592,7 @@ flow_loop_entry_edges_find (header, nodes, entry_edges)
for (e = header->pred; e; e = e->pred_next) for (e = header->pred; e; e = e->pred_next)
{ {
basic_block src = e->src; basic_block src = e->src;
if (src == ENTRY_BLOCK_PTR || ! TEST_BIT (nodes, src->index)) if (src == ENTRY_BLOCK_PTR || ! TEST_BIT (nodes, src->index))
num_entries++; num_entries++;
} }
...@@ -7600,7 +7606,7 @@ flow_loop_entry_edges_find (header, nodes, entry_edges) ...@@ -7600,7 +7606,7 @@ flow_loop_entry_edges_find (header, nodes, entry_edges)
for (e = header->pred; e; e = e->pred_next) for (e = header->pred; e; e = e->pred_next)
{ {
basic_block src = e->src; basic_block src = e->src;
if (src == ENTRY_BLOCK_PTR || ! TEST_BIT (nodes, src->index)) if (src == ENTRY_BLOCK_PTR || ! TEST_BIT (nodes, src->index))
(*entry_edges)[num_entries++] = e; (*entry_edges)[num_entries++] = e;
} }
...@@ -7632,7 +7638,7 @@ flow_loop_exit_edges_find (nodes, exit_edges) ...@@ -7632,7 +7638,7 @@ flow_loop_exit_edges_find (nodes, exit_edges)
EXECUTE_IF_SET_IN_SBITMAP (nodes, 0, node, { EXECUTE_IF_SET_IN_SBITMAP (nodes, 0, node, {
for (e = BASIC_BLOCK (node)->succ; e; e = e->succ_next) for (e = BASIC_BLOCK (node)->succ; e; e = e->succ_next)
{ {
basic_block dest = e->dest; basic_block dest = e->dest;
if (dest == EXIT_BLOCK_PTR || ! TEST_BIT (nodes, dest->index)) if (dest == EXIT_BLOCK_PTR || ! TEST_BIT (nodes, dest->index))
num_exits++; num_exits++;
...@@ -7649,7 +7655,7 @@ flow_loop_exit_edges_find (nodes, exit_edges) ...@@ -7649,7 +7655,7 @@ flow_loop_exit_edges_find (nodes, exit_edges)
EXECUTE_IF_SET_IN_SBITMAP (nodes, 0, node, { EXECUTE_IF_SET_IN_SBITMAP (nodes, 0, node, {
for (e = BASIC_BLOCK (node)->succ; e; e = e->succ_next) for (e = BASIC_BLOCK (node)->succ; e; e = e->succ_next)
{ {
basic_block dest = e->dest; basic_block dest = e->dest;
if (dest == EXIT_BLOCK_PTR || ! TEST_BIT (nodes, dest->index)) if (dest == EXIT_BLOCK_PTR || ! TEST_BIT (nodes, dest->index))
(*exit_edges)[num_exits++] = e; (*exit_edges)[num_exits++] = e;
...@@ -8143,7 +8149,7 @@ flow_loops_find (loops, flags) ...@@ -8143,7 +8149,7 @@ flow_loops_find (loops, flags)
must always be built if this function is called. */ must always be built if this function is called. */
if (! (flags & LOOP_TREE)) if (! (flags & LOOP_TREE))
abort (); abort ();
memset (loops, 0, sizeof (*loops)); memset (loops, 0, sizeof (*loops));
/* Taking care of this degenerate case makes the rest of /* Taking care of this degenerate case makes the rest of
...@@ -8258,7 +8264,7 @@ flow_loops_find (loops, flags) ...@@ -8258,7 +8264,7 @@ flow_loops_find (loops, flags)
loop->nodes = sbitmap_alloc (n_basic_blocks); loop->nodes = sbitmap_alloc (n_basic_blocks);
loop->num_nodes loop->num_nodes
= flow_loop_nodes_find (loop->header, loop->latch, loop->nodes); = flow_loop_nodes_find (loop->header, loop->latch, loop->nodes);
/* Compute first and last blocks within the loop. /* Compute first and last blocks within the loop.
These are often the same as the loop header and These are often the same as the loop header and
loop latch respectively, but this is not always loop latch respectively, but this is not always
...@@ -8267,7 +8273,7 @@ flow_loops_find (loops, flags) ...@@ -8267,7 +8273,7 @@ flow_loops_find (loops, flags)
= BASIC_BLOCK (sbitmap_first_set_bit (loop->nodes)); = BASIC_BLOCK (sbitmap_first_set_bit (loop->nodes));
loop->last loop->last
= BASIC_BLOCK (sbitmap_last_set_bit (loop->nodes)); = BASIC_BLOCK (sbitmap_last_set_bit (loop->nodes));
if (flags & LOOP_EDGES) if (flags & LOOP_EDGES)
{ {
/* Find edges which enter the loop header. /* Find edges which enter the loop header.
...@@ -8277,12 +8283,12 @@ flow_loops_find (loops, flags) ...@@ -8277,12 +8283,12 @@ flow_loops_find (loops, flags)
= flow_loop_entry_edges_find (loop->header, = flow_loop_entry_edges_find (loop->header,
loop->nodes, loop->nodes,
&loop->entry_edges); &loop->entry_edges);
/* Find edges which exit the loop. */ /* Find edges which exit the loop. */
loop->num_exits loop->num_exits
= flow_loop_exit_edges_find (loop->nodes, = flow_loop_exit_edges_find (loop->nodes,
&loop->exit_edges); &loop->exit_edges);
/* Determine which loop nodes dominate all the exits /* Determine which loop nodes dominate all the exits
of the loop. */ of the loop. */
loop->exits_doms = sbitmap_alloc (n_basic_blocks); loop->exits_doms = sbitmap_alloc (n_basic_blocks);
...@@ -8290,17 +8296,17 @@ flow_loops_find (loops, flags) ...@@ -8290,17 +8296,17 @@ flow_loops_find (loops, flags)
for (j = 0; j < loop->num_exits; j++) for (j = 0; j < loop->num_exits; j++)
sbitmap_a_and_b (loop->exits_doms, loop->exits_doms, sbitmap_a_and_b (loop->exits_doms, loop->exits_doms,
dom[loop->exit_edges[j]->src->index]); dom[loop->exit_edges[j]->src->index]);
/* The header of a natural loop must dominate /* The header of a natural loop must dominate
all exits. */ all exits. */
if (! TEST_BIT (loop->exits_doms, loop->header->index)) if (! TEST_BIT (loop->exits_doms, loop->header->index))
abort (); abort ();
} }
if (flags & LOOP_PRE_HEADER) if (flags & LOOP_PRE_HEADER)
{ {
/* Look to see if the loop has a pre-header node. */ /* Look to see if the loop has a pre-header node. */
loop->pre_header loop->pre_header
= flow_loop_pre_header_find (loop->header, dom); = flow_loop_pre_header_find (loop->header, dom);
flow_loop_pre_header_scan (loop); flow_loop_pre_header_scan (loop);
...@@ -8347,7 +8353,7 @@ flow_loops_update (loops, flags) ...@@ -8347,7 +8353,7 @@ flow_loops_update (loops, flags)
throw away the old stuff and rebuild what we need. */ throw away the old stuff and rebuild what we need. */
if (loops->array) if (loops->array)
flow_loops_free (loops); flow_loops_free (loops);
return flow_loops_find (loops, flags); return flow_loops_find (loops, flags);
} }
......
gcc/invoke.texi
...@@ -5,7 +5,7 @@ ...@@ -5,7 +5,7 @@
@ignore @ignore
@c man begin COPYRIGHT @c man begin COPYRIGHT
Copyright @copyright{} 1988, 1989, 1992, 1993, 1994, 1995, 1996, 1997, Copyright @copyright{} 1988, 1989, 1992, 1993, 1994, 1995, 1996, 1997,
1998, 1999, 2000 Free Software Foundation, Inc. 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
Permission is granted to make and distribute verbatim copies of this Permission is granted to make and distribute verbatim copies of this
manual provided the copyright notice and this permission notice are manual provided the copyright notice and this permission notice are
...@@ -2170,7 +2170,8 @@ Warn about functions which might be candidates for attribute @code{noreturn}. ...@@ -2170,7 +2170,8 @@ Warn about functions which might be candidates for attribute @code{noreturn}.
Note these are only possible candidates, not absolute ones. Care should Note these are only possible candidates, not absolute ones. Care should
be taken to manually verify functions actually do not ever return before be taken to manually verify functions actually do not ever return before
adding the @code{noreturn} attribute, otherwise subtle code generation adding the @code{noreturn} attribute, otherwise subtle code generation
bugs could be introduced. bugs could be introduced. You will not get a warning for @code{main} in
hosted C environments.
@item -Wmissing-format-attribute @item -Wmissing-format-attribute
If @samp{-Wformat} is enabled, also warn about functions which might be If @samp{-Wformat} is enabled, also warn about functions which might be
......
gcc/toplev.c
/* Top level of GNU C compiler /* Top level of GNU C compiler
Copyright (C) 1987, 1988, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998, Copyright (C) 1987, 1988, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
1999, 2000 Free Software Foundation, Inc. 1999, 2000, 2001 Free Software Foundation, Inc.
This file is part of GNU CC. This file is part of GNU CC.
...@@ -969,7 +969,7 @@ const char *user_label_prefix; ...@@ -969,7 +969,7 @@ const char *user_label_prefix;
lang_independent_options f_options[] = lang_independent_options f_options[] =
{ {
{"eliminate-dwarf2-dups", &flag_eliminate_dwarf2_dups, 1, {"eliminate-dwarf2-dups", &flag_eliminate_dwarf2_dups, 1,
"Perform DWARF2 duplicate elimination"}, "Perform DWARF2 duplicate elimination"},
{"float-store", &flag_float_store, 1, {"float-store", &flag_float_store, 1,
"Do not store floats in registers" }, "Do not store floats in registers" },
...@@ -1210,8 +1210,6 @@ documented_lang_options[] = ...@@ -1210,8 +1210,6 @@ documented_lang_options[] =
{ "-Wbad-function-cast", { "-Wbad-function-cast",
"Warn about casting functions to incompatible types" }, "Warn about casting functions to incompatible types" },
{ "-Wno-bad-function-cast", "" }, { "-Wno-bad-function-cast", "" },
{ "-Wmissing-noreturn",
"Warn about functions which might be candidates for attribute noreturn" },
{ "-Wno-missing-noreturn", "" }, { "-Wno-missing-noreturn", "" },
{ "-Wmissing-format-attribute", { "-Wmissing-format-attribute",
"Warn about functions which might be candidates for format attributes" }, "Warn about functions which might be candidates for format attributes" },
...@@ -1461,7 +1459,9 @@ lang_independent_options W_options[] = ...@@ -1461,7 +1459,9 @@ lang_independent_options W_options[] =
{"padded", &warn_padded, 1, {"padded", &warn_padded, 1,
"Warn when padding is required to align struct members"}, "Warn when padding is required to align struct members"},
{"disabled-optimization", &warn_disabled_optimization, 1, {"disabled-optimization", &warn_disabled_optimization, 1,
"Warn when an optimization pass is disabled"} "Warn when an optimization pass is disabled"},
{"missing-noreturn", &warn_missing_noreturn, 1,
"Warn about functions which might be candidates for attribute noreturn"}
}; };
/* Output files for assembler code (real compiler output) /* Output files for assembler code (real compiler output)
...@@ -1576,7 +1576,7 @@ approx_sqrt (x) ...@@ -1576,7 +1576,7 @@ approx_sqrt (x)
double s, d; double s, d;
if (x < 0) if (x < 0)
abort (); abort ();
if (x == 0) if (x == 0)
return 0; return 0;
...@@ -1584,8 +1584,8 @@ approx_sqrt (x) ...@@ -1584,8 +1584,8 @@ approx_sqrt (x)
do do
{ {
d = (s * s - x) / (2 * s); d = (s * s - x) / (2 * s);
s -= d; s -= d;
} }
while (d > .0001); while (d > .0001);
return s; return s;
} }
...@@ -1962,7 +1962,7 @@ wrapup_global_declarations (vec, len) ...@@ -1962,7 +1962,7 @@ wrapup_global_declarations (vec, len)
if (TREE_CODE (decl) == VAR_DECL && TREE_STATIC (decl) if (TREE_CODE (decl) == VAR_DECL && TREE_STATIC (decl)
&& (! TREE_READONLY (decl) && (! TREE_READONLY (decl)
|| TREE_PUBLIC (decl) || TREE_PUBLIC (decl)
|| (!optimize || (!optimize
&& flag_keep_static_consts && flag_keep_static_consts
&& !DECL_ARTIFICIAL (decl)) && !DECL_ARTIFICIAL (decl))
|| TREE_SYMBOL_REFERENCED (DECL_ASSEMBLER_NAME (decl)))) || TREE_SYMBOL_REFERENCED (DECL_ASSEMBLER_NAME (decl))))
...@@ -2878,7 +2878,7 @@ rest_of_compilation (decl) ...@@ -2878,7 +2878,7 @@ rest_of_compilation (decl)
integrate.*/ integrate.*/
rtx_equal_function_value_matters = 0; rtx_equal_function_value_matters = 0;
purge_hard_subreg_sets (get_insns ()); purge_hard_subreg_sets (get_insns ());
/* Don't return yet if -Wreturn-type; we need to do jump_optimize. */ /* Don't return yet if -Wreturn-type; we need to do jump_optimize. */
if ((rtl_dump_and_exit || flag_syntax_only) && !warn_return_type) if ((rtl_dump_and_exit || flag_syntax_only) && !warn_return_type)
goto exit_rest_of_compilation; goto exit_rest_of_compilation;
...@@ -3075,7 +3075,7 @@ rest_of_compilation (decl) ...@@ -3075,7 +3075,7 @@ rest_of_compilation (decl)
insns = get_insns (); insns = get_insns ();
eliminate_dead_code(); eliminate_dead_code();
close_dump_file (DFI_dce, print_rtl_with_bb, insns); close_dump_file (DFI_dce, print_rtl_with_bb, insns);
timevar_pop (TV_DEAD_CODE_ELIM); timevar_pop (TV_DEAD_CODE_ELIM);
} }
......
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