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re PR regression/50999 (g++.dg/lto/20081109 execute -O2 -flto -flto-partition=1to1 -fno-use-linker-plugin)

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2011-11-08  Richard Guenther  <rguenther@suse.de>

	PR lto/50999
	* lto-opts.c (append_to_collect_gcc_options): Split out from...
	(lto_write_options): ... here.  Prepend frontend specific flags.

From-SVN: r181160
This commit is contained in:
Richard Guenther 2011-11-08 13:41:57 +00:00 committed by Richard Biener
parent a0eabe5751
commit a456676fbc
2 changed files with 47 additions and 27 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2011-11-08 Richard Guenther <rguenther@suse.de>
PR lto/50999
* lto-opts.c (append_to_collect_gcc_options): Split out from...
(lto_write_options): ... here. Prepend frontend specific flags.
2011-11-08 Jakub Jelinek <jakub@redhat.com>
* config/i386/sse.md (*avx_vperm2f128<mode>3_nozero): Emit mask

68
gcc/lto-opts.c
View File

@ -35,6 +35,29 @@ along with GCC; see the file COPYING3. If not see
#include "lto-streamer.h"
#include "toplev.h"
/* Append the option piece OPT to the COLLECT_GCC_OPTIONS string
set up by OB, appropriately quoted and separated by spaces
(if !*FIRST_P). */
static void
append_to_collect_gcc_options (struct obstack *ob,
bool *first_p, const char *opt)
{
const char *p, *q = opt;
if (!first_p)
obstack_grow (ob, " ", 1);
obstack_grow (ob, "'", 1);
while ((p = strchr (q, '\'')))
{
obstack_grow (ob, q, p - q);
obstack_grow (ob, "'\\''", 4);
q = ++p;
}
obstack_grow (ob, q, strlen (q));
obstack_grow (ob, "'", 1);
*first_p = false;
}
/* Write currently held options to an LTO IL section. */
void
@ -45,16 +68,30 @@ lto_write_options (void)
struct obstack temporary_obstack;
unsigned int i, j;
char *args;
bool first_p = true;
section_name = lto_get_section_name (LTO_section_opts, NULL, NULL);
lto_begin_section (section_name, false);
memset (&stream, 0, sizeof (stream));
obstack_init (&temporary_obstack);
/* Output options that affect GIMPLE IL semantics and are implicitely
enabled by the frontend.
This for now includes an explicit set of options that we also handle
explicitly in lto-wrapper.c. In the end the effects on GIMPLE IL
semantics should be explicitely encoded in the IL or saved per
function rather than per compilation unit. */
/* -fexceptions causes the EH machinery to be initialized, enabling
generation of unwind data so that explicit throw() calls work. */
if (global_options.x_flag_exceptions)
append_to_collect_gcc_options (&temporary_obstack, &first_p,
"-fexceptions");
/* Output explicitely passed options. */
for (i = 1; i < save_decoded_options_count; ++i)
{
struct cl_decoded_option *option = &save_decoded_options[i];
const char *q, *p;
/* Skip frontend and driver specific options here. */
if (!(cl_options[option->opt_index].flags & (CL_COMMON|CL_TARGET|CL_LTO)))
@ -82,32 +119,9 @@ lto_write_options (void)
break;
}
if (i != 1)
obstack_grow (&temporary_obstack, " ", 1);
obstack_grow (&temporary_obstack, "'", 1);
q = option->canonical_option[0];
while ((p = strchr (q, '\'')))
{
obstack_grow (&temporary_obstack, q, p - q);
obstack_grow (&temporary_obstack, "'\\''", 4);
q = ++p;
}
obstack_grow (&temporary_obstack, q, strlen (q));
obstack_grow (&temporary_obstack, "'", 1);
for (j = 1; j < option->canonical_option_num_elements; ++j)
{
obstack_grow (&temporary_obstack, " '", 2);
q = option->canonical_option[j];
while ((p = strchr (q, '\'')))
{
obstack_grow (&temporary_obstack, q, p - q);
obstack_grow (&temporary_obstack, "'\\''", 4);
q = ++p;
}
obstack_grow (&temporary_obstack, q, strlen (q));
obstack_grow (&temporary_obstack, "'", 1);
}
for (j = 0; j < option->canonical_option_num_elements; ++j)
append_to_collect_gcc_options (&temporary_obstack, &first_p,
option->canonical_option[j]);
}
obstack_grow (&temporary_obstack, "\0", 1);
args = XOBFINISH (&temporary_obstack, char *);