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common.opt (ffat-lto-objects): Disable by default. 

* common.opt (ffat-lto-objects): Disable by default.
	* doc/invoke.texi (fat-lto-objects): Update documentation.
	* opts.c: Enable fat-lto-objects on lto plugin disable setups.

From-SVN: r205065
This commit is contained in:
Jan Hubicka 2013-11-19 23:52:19 +00:00
parent 0ab6c9a9bb
commit e9f67e625c
4 changed files with 21 additions and 6 deletions
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7
gcc/ChangeLog
View File

@ -1,3 +1,9 @@
2013-11-20 Jan Hubicka <jh@suse.cz>
* common.opt (ffat-lto-objects): Disable by default.
* doc/invoke.texi (fat-lto-objects): Update documentation.
* opts.c: Enable fat-lto-objects on lto plugin disable setups.
2013-11-19 Martin Jambor <mjambor@suse.cz>
PR rtl-optimization/59099
@ -1472,6 +1478,7 @@
(ssa_fix_duplicate_block_edges): Corresponding changes.
(ssa_fixup_template_block, thread_single_edge): Likewise.
>>>>>>> .r205063
2013-11-18 Marek Polacek <polacek@redhat.com>
* doc/invoke.texi: Extend -fsanitize=undefined documentation.

6
gcc/common.opt
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@ -1156,7 +1156,7 @@ ffast-math
Common
ffat-lto-objects
Common Var(flag_fat_lto_objects) Init(1)
Common Var(flag_fat_lto_objects)
Output lto objects containing both the intermediate language and binary output.
ffinite-math-only
@ -1392,6 +1392,10 @@ fipa-pure-const
Common Report Var(flag_ipa_pure_const) Init(0) Optimization
Discover pure and const functions
fipa-sem-equality
Common Report Var(flag_ipa_sem_equality) Iinit(1) Optimization
Perform Semantic function equality
fipa-reference
Common Report Var(flag_ipa_reference) Init(0) Optimization
Discover readonly and non addressable static variables

5
gcc/doc/invoke.texi
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@ -8626,9 +8626,8 @@ need to support linker plugins to allow a full-featured build environment
@command{gcc-nm}, @command{gcc-ranlib} wrappers to pass the right options
to these tools. With non fat LTO makefiles need to be modified to use them.
The default is @option{-ffat-lto-objects} but this default is intended to
change in future releases when linker plugin enabled environments become more
common.
The default is @option{-fno-fat-lto-objects} on targets with linker plugin
support.
@item -fcompare-elim
@opindex fcompare-elim

9
gcc/opts.c
View File

@ -493,6 +493,7 @@ static const struct default_options default_options_table[] =
{ OPT_LEVELS_2_PLUS, OPT_fvect_cost_model_, NULL, VECT_COST_MODEL_CHEAP },
{ OPT_LEVELS_2_PLUS_SPEED_ONLY, OPT_foptimize_strlen, NULL, 1 },
{ OPT_LEVELS_2_PLUS, OPT_fhoist_adjacent_loads, NULL, 1 },
{ OPT_LEVELS_2_PLUS, OPT_fipa_sem_equality, NULL, 1 },
{ OPT_LEVELS_2_PLUS, OPT_fisolate_erroneous_paths, NULL, 1 },
/* -O3 optimizations. */
@ -809,8 +810,12 @@ finish_options (struct gcc_options *opts, struct gcc_options *opts_set,
error_at (loc, "LTO support has not been enabled in this configuration");
#endif
if (!opts->x_flag_fat_lto_objects && !HAVE_LTO_PLUGIN)
error_at (loc, "-fno-fat-lto-objects are supported only with linker plugin.");
}
{
if (opts_set->x_flag_fat_lto_objects)
error_at (loc, "-fno-fat-lto-objects are supported only with linker plugin.");
opts->x_flag_fat_lto_objects = 1;
}
}
if ((opts->x_flag_lto_partition_balanced != 0) + (opts->x_flag_lto_partition_1to1 != 0)
+ (opts->x_flag_lto_partition_none != 0) >= 1)
{