* haifa-sched.c (find_rgns): In no_loops case, fix test for leaf
blocks. Check for 1 successor which is the EXIT_BLOCK.
* haifa-sched.c (find_rgns): Detect unreachable blocks, including
unreachable loops with more than one block.
Co-Authored-By: Jim Wilson <wilson@cygnus.com>
From-SVN: r19558
* c-common.c (scan_char_table): Separate 's' and 'c'. 'c' does not
accept 'a' flag. 'S' does accept 'a' flag.
(check_format_info): When pedantic, warn for m/C/S/a/A formats,
and `a' flag.
From-SVN: r19545
* config/m68k/m68k.h: Declare functions from m68k.c used in
macros and machine description.
(ASM_OUTPUT_LONG_DOUBLE): Always use `l' flag in print format for
long values.
(ASM_OUTPUT_FLOAT): Likewise.
(ASM_OUTPUT_FLOAT_OPERAND): Likewise.
From-SVN: r19541
* tree.def: Add NAMESPACE_DECL.
* dwarfout.c (type_ok_for_scope): Ignore NAMESPACE_DECLs for now.
* dwarf2out.c (push_decl_scope): Likewise.
(scope_die_for): Likewise.
* tree.c (decl_function_context): Use TREE_CODE_CLASS to determine
how to get next context level.
From-SVN: r19540
* reorg.c (fill_slots_from_thread): Update REG_DEAD/REG_UNUSED notes
for any insns skipped at the start of a block because they were
redundant.
From-SVN: r19534
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Make UnixWare 7 bootstrap support work with final shipping product.
* configure.in: (i[34567]86-*-sysv5): append, not overwrite, xm_file.
Pick up xm-siglist and xm-alloca.
(xm_defines): Add USG so dbxout will build.
* configure: Regenerate.
From-SVN: r19529
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Make UnixWare 7 bootstrap support work with final shipping product.
* configure.in: (i[34567]86-*-sysv5): append, not overwrite, xm_file.
Pick up xm-siglist and xm-alloca.
(xm_defines): Add USG so dbxout will build.
* configure: Regenerate.
From-SVN: r19528
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Make UnixWare 7 bootstrap support work with final shipping product.
* configure.in: (i[34567]86-*-sysv5): append, not overwrite, xm_file.
Pick up xm-siglist and xm-alloca.
(xm_defines): Add USG so dbxout will build.
* configure: Regenerate.
From-SVN: r19527
* sparc.c (sparc_override_options): Force stack bias off for !arch64.
Care for flag_pcc_struct_return default.
(output_move_quad): Rewrite to move by halves on v9 and in the
proper direction.
(move_quad_direction): New function.
(output_fp_move_quad): Use it to determine the direction of copy.
(function_arg_slotno): Return -1 for FP reg overflow as well.
(function_arg_record_value*): New functions.
(function_arg): Use them. Streamline unprototyped parameter passing.
(function_arg_pass_by_reference): Pass TCmode by reference.
(function_value): New function.
* sparc.h (PTRDIFF_TYPE, SIZE_TYPE): For -pedantic's sake, don't use
long long in 64-bit mode.
(RETURN_IN_MEMORY): v9 returns structs < 32-bytes in regs.
(DEFAULT_PCC_STRUCT_RETURN): Make the default detectable.
(BASE_RETURN_VALUE_REG): Consider complex float types for arch64.
(BASE_OUTGOING_VALUE_REG, BASE_PASSING_ARG_REG): Likewise.
(BASE_INCOMING_ARG_REG): Likewise.
(FUNCTION_VALUE): Call function_value.
(FUNCTION_OUTGOING_VALUE, LIBCALL_VALUE): Likewise.
* sparc.md (movdi_sp32_v9): Disable for arch64.
(movsf, movdf, movtf): Sort all ulternatives using fp regs first.
(call_value_address_sp64): Remove register class constraints.
(call_value_symbolic_sp64): Likewise.
(nonlocal_goto): Pass label reg directly to goto_handlers. Constrain
v9 case to 32-bit constants.
(goto_handler_and_restore_v9): Provide a version for arch64.
* sparc/linux64.h (SIZE_TYPE, PTRDIFF_TYPE): Remove private definition.
* sparc/sp64-aout.h (TARGET_DEFAULT): Turn on stack bias.
(CPP_PREDEFINES): New.
* sparc/sp64-elf.h: Likewise.
(PREFERRED_DEBUGGING_TYPE): Dwarf2.
(ASM_OUTPUT_DWARF2_ADDR_CONST): New.
* sparc/sysv4.h (SIZE_TYPE, PTRDIFF_TYPE): Undo svr4.h's changes.
From-SVN: r19526
* reload.c (find_reloads): Emit USEs to mark where a pseudo
is reloaced with the MEM of its stack slot.
* reload1.c (cannot_omit_stores): Delete.
(reload): Don't initialize it.
Don't apply avoid_return_reg logic to USEs.
When done, remove USEs that have a REG_EQUAL note on them.
(emit_reload_insns): Handle case where we have inherited a MEM.
(delete_output_reload): Don't use cannot_omit_stores.
From-SVN: r19508
* sched.c (new_insn_dead_notes): Check if the register was
used in the original instruction.
* haifa-sched.c (new_insn_dead_notes): Likewise.
From-SVN: r19494
