This avoids unlinking the assembler output file at the end of WPA
stage (we don't produce anything useful there) which eventually
clobbers an assembler output from a previous stage. Instead simply
don't open the file. That requires not performing debug init
which we shouldn't need either here (maybe we can also drop
lang_dependent_init_target which for example inits IRA, but
I'm not sure).
Bootstrapped and tested on x86_64-unknown-linux-gnu, SPEC 2k6 built
with LTO and -g.
Ok?
Thanks,
Richard.
2011-04-06 Richard Guenther <rguent...@suse.de>
PR lto/48467
* toplev.c (lang_dependent_init): Do not open asm_out_file
in WPA mode, nor perform debug machinery initialization.
(finalize): Do not unlink asm_out_file in WPA mode.
Index: gcc/toplev.c
===================================================================
*** gcc/toplev.c (revision 172023)
--- gcc/toplev.c (working copy)
*************** lang_dependent_init (const char *name)
*** 1743,1753 ****
return 0;
input_location = save_loc;
! init_asm_output (name);
! /* If stack usage information is desired, open the output file. */
! if (flag_stack_usage)
! stack_usage_file = open_auxiliary_file ("su");
/* This creates various _DECL nodes, so needs to be called after the
front end is initialized. */
--- 1743,1756 ----
return 0;
input_location = save_loc;
! if (!flag_wpa)
! {
! init_asm_output (name);
! /* If stack usage information is desired, open the output file. */
! if (flag_stack_usage)
! stack_usage_file = open_auxiliary_file ("su");
! }
/* This creates various _DECL nodes, so needs to be called after the
front end is initialized. */
*************** lang_dependent_init (const char *name)
*** 1756,1775 ****
/* Do the target-specific parts of the initialization. */
lang_dependent_init_target ();
! /* If dbx symbol table desired, initialize writing it and output the
! predefined types. */
! timevar_push (TV_SYMOUT);
#if defined DWARF2_DEBUGGING_INFO || defined DWARF2_UNWIND_INFO
! if (dwarf2out_do_frame ())
! dwarf2out_frame_init ();
#endif
! /* Now we have the correct original filename, we can initialize
! debug output. */
! (*debug_hooks->init) (name);
! timevar_pop (TV_SYMOUT);
return 1;
}
--- 1759,1781 ----
/* Do the target-specific parts of the initialization. */
lang_dependent_init_target ();
! if (!flag_wpa)
! {
! /* If dbx symbol table desired, initialize writing it and output the
! predefined types. */
! timevar_push (TV_SYMOUT);
#if defined DWARF2_DEBUGGING_INFO || defined DWARF2_UNWIND_INFO
! if (dwarf2out_do_frame ())
! dwarf2out_frame_init ();
#endif
! /* Now we have the correct original filename, we can initialize
! debug output. */
! (*debug_hooks->init) (name);
! timevar_pop (TV_SYMOUT);
! }
return 1;
}
*************** finalize (bool no_backend)
*** 1848,1855 ****
fatal_error ("error writing to %s: %m", asm_file_name);
if (fclose (asm_out_file) != 0)
fatal_error ("error closing %s: %m", asm_file_name);
- if (flag_wpa)
- unlink_if_ordinary (asm_file_name);
}
if (stack_usage_file)
--- 1854,1859 ----
