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opts.c (finish_options): Disable aggressive opts for sanitizer.

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gcc

2014-11-18  Marat Zakirov  <m.zakirov@samsung.com>

	* opts.c (finish_options): Disable aggressive opts for sanitizer.  
	(common_handle_option): Move code to finish_options.  

gcc/testsuite

2014-11-18  Marat Zakirov  <m.zakirov@samsung.com>

	* c-c++-common/asan/aggressive-opts.c: New test.

From-SVN: r217690
This commit is contained in:
Marat Zakirov 2014-11-18 08:46:39 +00:00 committed by Marat Zakirov
parent 24ebfddf68
commit 9ca0032c91
4 changed files with 50 additions and 6 deletions
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5
gcc/ChangeLog
View File

@ -1,3 +1,8 @@
2014-11-18 Marat Zakirov <m.zakirov@samsung.com>
* opts.c (finish_options): Disable aggressive opts for sanitizer.
(common_handle_option): Move code to finish_options.
2014-11-18 Yury Gribov <y.gribov@samsung.com>
PR sanitizer/63802

19
gcc/opts.c
View File

@ -904,6 +904,19 @@ finish_options (struct gcc_options *opts, struct gcc_options *opts_set,
if (opts->x_flag_sanitize_recover & SANITIZE_LEAK)
error_at (loc, "-fsanitize-recover=leak is not supported");
/* When instrumenting the pointers, we don't want to remove
the null pointer checks. */
if (opts->x_flag_sanitize & (SANITIZE_NULL | SANITIZE_NONNULL_ATTRIBUTE
| SANITIZE_RETURNS_NONNULL_ATTRIBUTE))
opts->x_flag_delete_null_pointer_checks = 0;
/* Aggressive compiler optimizations may cause false negatives. */
if (opts->x_flag_sanitize)
{
opts->x_flag_aggressive_loop_optimizations = 0;
opts->x_flag_strict_overflow = 0;
}
}
#define LEFT_COLUMN 27
@ -1622,12 +1635,6 @@ common_handle_option (struct gcc_options *opts,
if (code != OPT_fsanitize_)
break;
/* When instrumenting the pointers, we don't want to remove
the null pointer checks. */
if (opts->x_flag_sanitize & (SANITIZE_NULL | SANITIZE_NONNULL_ATTRIBUTE
| SANITIZE_RETURNS_NONNULL_ATTRIBUTE))
opts->x_flag_delete_null_pointer_checks = 0;
/* Kernel ASan implies normal ASan but does not yet support
all features. */
if (opts->x_flag_sanitize & SANITIZE_KERNEL_ADDRESS)

4
gcc/testsuite/ChangeLog
View File

@ -1,3 +1,7 @@
2014-11-18 Marat Zakirov <m.zakirov@samsung.com>
* c-c++-common/asan/aggressive-opts.c: New test.
2014-11-18 Yury Gribov <y.gribov@samsung.com>
PR sanitizer/63802

28
gcc/testsuite/c-c++-common/asan/aggressive-opts.c Normal file
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@ -0,0 +1,28 @@
/* { dg-options "-fdump-tree-asan" } */
/* { dg-do compile } */
/* { dg-skip-if "" { *-*-* } { "*" } { "-O3" } } */
int ext;
int
Perl_do_sv_dump()
{
int freq[10];
int i;
int max = 0;
if (max < ext)
max = ext;
for (i = 0; i <= max; i++)
if (freq[i])
ext = 0;
if (i > 20)
return freq[i];
else
return 0;
}
/* { dg-final { scan-tree-dump-times "ASAN_CHECK" 2 "asan1" } } */
/* { dg-final { cleanup-tree-dump "asan1" } } */