5 GCC regressions, 1 new, with your patch on 2003-06-08T21:39:04Z.

[Jan Hubicka]

> 
> On Sunday, Jun 8, 2003, at 22:23 US/Eastern, GCC regression checker  
> wrote:
> >The new failures are:
> >native g++.sum g++.dg/conversion/to-virtual-base-1.C
> 
> 
> This one is most likely caused by:
> +Sun Jun  8 21:27:41 CEST 2003  Jan Hubicka  <jh@suse.cz>
> +
> +	* cfglayout.c (insn_scope): New static function
> +	(block_locators_*, line_locators*, file_locators*): New static  
> varrays.
> +	(scope_to_insns_initialize): Use them.
> +	(insn_line, insn_file): New functions.
> +	(scope_to_insns_finalize): Use insn_scope.
> +	(prologue_locator, epilogue_locator): New global variables.
> +	* emit-rt.c (try_split, make_insn_raw, make_jump_insn_raw,
> +	make_call_insn_raw, emit_copy_of_insn_after): Use locators.
> +	(emit_insn_after_scope, emit_insn_before_scope
> +	emit_jump_insn_after_scope, emit_jump_insn_before_scope
> +	emit_call_insn_after_scope, emit_call_insn_before_scope): Rename 
> to...
> +	(emit_insn_after_setloc, emit_insn_before_setloc
> +	emit_jump_insn_after_setloc, emit_jump_insn_before_setloc
> +	emit_call_insn_after_setloc, emit_call_insn_before_setloc): ... 
> these;
> +	use locators.
> +	* final.c (notice_source_line): Use locators.
> +	(final_start_function): Set initial source file and line.
> +	(final_scan_insn): Use locators.
> +	* ifcvt.c (noce_try_store_flag, noce_try_store_flag_constants,
> +	noce_try_addcc, noce_try_store_flag_mask, noce_try_cmove,
> +	noce_try_cmove_arith, noce_try_minmax, noce_try_abs,
> +	noce_process_if_block, find_cond_trap): Likewise.
> +	* integrate.c (copy_insn_list): Likewise.
> +	* jump.c (duplicate_loop_exit_test): LIkewise.
> +	* print-rtl.c (print_rtx): Print locators.
> +	* recog.c (peephole2_optimize): Likewise.
> +	* rtl.h (INSN_SCOPE): Remove.
> +	(emit_insn_after_scope, emit_insn_before_scope
> +	emit_jump_insn_after_scope, emit_jump_insn_before_scope
> +	emit_call_insn_after_scope, emit_call_insn_before_scope): Rename 
> to...
> +	(emit_insn_after_setloc, emit_insn_before_setloc
> +	emit_jump_insn_after_setloc, emit_jump_insn_before_setloc
> +	emit_call_insn_after_setloc, emit_call_insn_before_setloc): ... 
> these;
> +	(insn_file, insn_line, prologue_locator, epilogue_locator): Declare.
> +	* unroll.c (copy_loop_body): Use locators.
> +	* function.c (set_insn_locators): New function.
> +	(thread_prologue_and_epilogue_insns): Set the locators accordingly.
> 
> gdb log:
> 
> src/gcc/testsuite/g++.dg/conversion/to-virtual-base-1.C: In member  
> function `virtual void B::f(const A*)':
> src/gcc/testsuite/g++.dg/conversion/to-virtual-base-1.C:14: error:  
> cannot convert from base `A' to derived type `B' via virtual base `A'
> 
> Program received signal EXC_BAD_ACCESS, Could not access memory.
> insn_file (insn=0x10ad2a0) at  
> /Volumes/UFS_Partition/pinskia/src/fsf/gcc-clean/src/gcc/cfglayout.c:464
> 464       int max = VARRAY_ACTIVE_SIZE (file_locators_locs);

Hmm, so file_locators_locs are not initialized at all?  That looks
strange, I will try to debug this soon.

Honza