Re: [PINGv2][PATCH] Asan optimization for aligned accesses.

2014-09-16 Thread Jakub Jelinek
On Tue, Sep 16, 2014 at 06:59:57PM +0400, Marat Zakirov wrote: > --- a/gcc/asan.c > +++ b/gcc/asan.c > @@ -1639,9 +1639,11 @@ build_check_stmt (location_t loc, tree base, tree len, >if (end_instrumented) > flags |= ASAN_CHECK_END_INSTRUMENTED; > > - g = gimple_build_call_internal (IFN_A

[PINGv2][PATCH] Asan optimization for aligned accesses.

2014-09-16 Thread Marat Zakirov
On 09/10/2014 04:30 PM, Marat Zakirov wrote: On 09/02/2014 07:09 PM, Marat Zakirov wrote: Hi all! Here's a simple optimization patch for Asan. It stores alignment information into ASAN_CHECK which is then extracted by sanopt to reduce number of "and 0x7" instructions for sufficiently aligned

[PING][PATCH] Asan optimization for aligned accesses.

2014-09-10 Thread Marat Zakirov
On 09/02/2014 07:09 PM, Marat Zakirov wrote: Hi all! Here's a simple optimization patch for Asan. It stores alignment information into ASAN_CHECK which is then extracted by sanopt to reduce number of "and 0x7" instructions for sufficiently aligned accesses. I checked it on linux kernel by com

[PATCH] Asan optimization for aligned accesses.

2014-09-02 Thread Marat Zakirov
Sorry for wrong subject! On 09/02/2014 07:03 PM, Marat Zakirov wrote: Hi all! Here's a simple optimization patch for Asan. It stores alignment information into ASAN_CHECK which is then extracted by sanopt to reduce number of "and 0x7" instructions for sufficiently aligned accesses. I checked