[Bug middle-end/77468] C-ray regression on Aarch64
tulipawn at gmail dot com
gcc-bugzilla@gcc.gnu.org
Sun Sep 4 13:11:00 GMT 2016
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77468
--- Comment #1 from PeteVine <tulipawn at gmail dot com> ---
GCC 5.3's profile (./c-ray-mt -t 64 -s 1600x1200 -r 8 -i sphfract -o
output.ppm):
CPU: ARM Cortex-A53, speed 1536 MHz (estimated)
Counted CPU_CYCLES events (Cycle) with a unit mask of 0x00 (No unit mask) count
100000
samples % linenr info image name symbol
name
4247694 63.5062 c-ray-mt.c:372 c-ray-mt shade
1281882 19.1651 c-ray-mt.c:336 c-ray-mt trace
1022514 15.2874 c-ray-mt.c:310 c-ray-mt
render_scanline
49166 0.7351 e_pow.c:65 libm-2.23.so
__pow_finite
17372 0.2597 c-ray-mt.c:454 c-ray-mt
get_primary_ray
17013 0.2544 e_exp.c:248 libm-2.23.so __exp1
14750 0.2205 c-ray-mt.c:501 c-ray-mt
get_sample_pos
13948 0.2085 (no location information) no-vmlinux
/no-vmlinux
13325 0.1992 w_pow.c:26 libm-2.23.so pow
4844 0.0724 e_pow.c:455 libm-2.23.so checkint
4426 0.0662 fputc.c:32 libc-2.23.so fputc
932 0.0139 mpa.c:768 libm-2.23.so __sqr
393 0.0059 c-ray-mt.c:170 c-ray-mt main
214 0.0032 mpa.c:615 libm-2.23.so __mul
27 4.0e-04 mpa.c:443 libm-2.23.so
sub_magnitudes
19 2.8e-04 mpa.c:375 libm-2.23.so
add_magnitudes
11 1.6e-04 mpa.c:333 libm-2.23.so __dbl_mp
8 1.2e-04 mpa.c:114 libm-2.23.so __cpy
7 1.0e-04 mpexp.c:44 libm-2.23.so __mpexp
5 7.5e-05 c-ray-mt.c:656 c-ray-mt
thread_func
5 7.5e-05 strtod_l.c:481 libc-2.23.so
____strtod_l_internal
5 7.5e-05 strpbrk.c:30 libc-2.23.so strpbrk
5 7.5e-05 syscall-template.S:86 libc-2.23.so write
5 7.5e-05 mpa.c:310 libm-2.23.so __mp_dbl
5 7.5e-05 mpa.c:563 libm-2.23.so __sub
3 4.5e-05 fileops.c:808 libc-2.23.so
_IO_file_overflow@@GLIBC_2.17
3 4.5e-05 cancellation.c:69 libc-2.23.so
__libc_disable_asynccancel
3 4.5e-05 fileops.c:501 libc-2.23.so
new_do_write
3 4.5e-05 strtod_l.c:338 libc-2.23.so
str_to_mpn.isra.0
3 4.5e-05 mpa.c:899 libm-2.23.so __dvd
3 4.5e-05 halfulp.c:64 libm-2.23.so
__halfulp
2 3.0e-05 malloc.c:2940 libc-2.23.so free
2 3.0e-05 getpagesize.c:28 libc-2.23.so
getpagesize
2 3.0e-05 random.c:288 libc-2.23.so random
2 3.0e-05 random_r.c:357 libc-2.23.so random_r
2 3.0e-05 mpa.c:516 libm-2.23.so __add
2 3.0e-05 mplog.c:41 libm-2.23.so __mplog
1 1.5e-05 dl-runtime.c:66 ld-2.23.so
_dl_fixup
1 1.5e-05 rtld.c:647 ld-2.23.so
_dl_initial_error_catch_tsd
1 1.5e-05 dl-lookup.c:806 ld-2.23.so
_dl_lookup_symbol_x
1 1.5e-05 dl-load.c:871 ld-2.23.so
_dl_map_object_from_fd
1 1.5e-05 dl-reloc.c:149 ld-2.23.so
_dl_relocate_object
1 1.5e-05 dl-tls.c:321 ld-2.23.so
allocate_dtv
1 1.5e-05 dl-lookup.c:92 ld-2.23.so
check_match
1 1.5e-05 strcmp.S:52 ld-2.23.so strcmp
1 1.5e-05 fileops.c:494 libc-2.23.so
_IO_do_write@@GLIBC_2.17
1 1.5e-05 filedoalloc.c:95 libc-2.23.so
_IO_file_doallocate
1 1.5e-05 fileops.c:200 libc-2.23.so
_IO_file_finish@@GLIBC_2.17
1 1.5e-05 dl-addr.c:126 libc-2.23.so _dl_addr
1 1.5e-05 malloc.c:3842 libc-2.23.so
_int_free
1 1.5e-05 syscall-template.S:84 libc-2.23.so mprotect
1 1.5e-05 strtod_l.c:197 libc-2.23.so
round_and_return
1 1.5e-05 strtod.c:64 libc-2.23.so strtod
1 1.5e-05 strtok.c:40 libc-2.23.so strtok
1 1.5e-05 mpa.c:83 libm-2.23.so __acr
1 1.5e-05 k_standard.c:99 libm-2.23.so
__kernel_standard
1 1.5e-05 slowpow.c:51 libm-2.23.so
__slowpow
1 1.5e-05 allocatestack.c:263 libpthread-2.23.so
__free_stacks
1 1.5e-05 pthread_create.c:125 libpthread-2.23.so
__nptl_deallocate_tsd
1 1.5e-05 pthread_join.c:45 libpthread-2.23.so
pthread_join
versus gcc 7's:
samples % linenr info image name symbol
name
4293002 60.4752 c-ray-mt.c:372 c-ray-mt shade
1465464 20.6439 c-ray-mt.c:336 c-ray-mt trace
1199915 16.9031 c-ray-mt.c:310 c-ray-mt
render_scanline
52646 0.7416 e_pow.c:65 libm-2.23.so
__pow_finite
17097 0.2408 c-ray-mt.c:454 c-ray-mt
get_primary_ray
16953 0.2388 e_exp.c:248 libm-2.23.so __exp1
14991 0.2112 (no location information) no-vmlinux
/no-vmlinux
14445 0.2035 w_pow.c:26 libm-2.23.so pow
13474 0.1898 c-ray-mt.c:501 c-ray-mt
get_sample_pos
4792 0.0675 e_pow.c:455 libm-2.23.so checkint
4448 0.0627 fputc.c:32 libc-2.23.so fputc
823 0.0116 mpa.c:768 libm-2.23.so __sqr
381 0.0054 c-ray-mt.c:170 c-ray-mt main
201 0.0028 mpa.c:615 libm-2.23.so __mul
22 3.1e-04 mpa.c:443 libm-2.23.so
sub_magnitudes
17 2.4e-04 mpa.c:375 libm-2.23.so
add_magnitudes
7 9.9e-05 mpa.c:114 libm-2.23.so __cpy
7 9.9e-05 mpa.c:899 libm-2.23.so __dvd
7 9.9e-05 mpexp.c:44 libm-2.23.so __mpexp
6 8.5e-05 mpa.c:83 libm-2.23.so __acr
6 8.5e-05 mpa.c:333 libm-2.23.so __dbl_mp
6 8.5e-05 mpa.c:310 libm-2.23.so __mp_dbl
5 7.0e-05 syscall-template.S:86 libc-2.23.so write
4 5.6e-05 strtod_l.c:481 libc-2.23.so
____strtod_l_internal
4 5.6e-05 strpbrk.c:30 libc-2.23.so strpbrk
4 5.6e-05 halfulp.c:64 libm-2.23.so
__halfulp
3 4.2e-05 c-ray-mt.c:656 c-ray-mt
thread_func
3 4.2e-05 fileops.c:808 libc-2.23.so
_IO_file_overflow@@GLIBC_2.17
3 4.2e-05 mpa.c:516 libm-2.23.so __add
2 2.8e-05 dl-lookup.c:355 ld-2.23.so
do_lookup_x
2 2.8e-05 cancellation.c:32 libc-2.23.so
__libc_enable_asynccancel
2 2.8e-05 malloc.c:3320 libc-2.23.so
_int_malloc
2 2.8e-05 malloc.c:3173 libc-2.23.so calloc
2 2.8e-05 mplog.c:41 libm-2.23.so __mplog
2 2.8e-05 pthread_cond_wait.c:102 libpthread-2.23.so
pthread_cond_wait@@GLIBC_2.17
2 2.8e-05 pthread_create.c:254 libpthread-2.23.so
start_thread
1 1.4e-05 dl-tls.c:450 ld-2.23.so
_dl_allocate_tls_init
1 1.4e-05 dl-lookup.c:806 ld-2.23.so
_dl_lookup_symbol_x
1 1.4e-05 dl-load.c:871 ld-2.23.so
_dl_map_object_from_fd
1 1.4e-05 dl-misc.c:288 ld-2.23.so
_dl_name_match_p
1 1.4e-05 dl-reloc.c:149 ld-2.23.so
_dl_relocate_object
1 1.4e-05 access.c:28 ld-2.23.so access
1 1.4e-05 dl-lookup.c:92 ld-2.23.so
check_match
1 1.4e-05 strcmp.S:52 ld-2.23.so strcmp
1 1.4e-05 fileops.c:1256 libc-2.23.so
_IO_file_write@@GLIBC_2.17
1 1.4e-05 iogetline.c:49 libc-2.23.so
_IO_getline_info
1 1.4e-05 cancellation.c:69 libc-2.23.so
__libc_disable_asynccancel
1 1.4e-05 thread-freeres.c:28 libc-2.23.so
__libc_thread_freeres
1 1.4e-05 mpn2dbl.c:39 libc-2.23.so
__mpn_construct_double
1 1.4e-05 dl-addr.c:126 libc-2.23.so _dl_addr
1 1.4e-05 getpagesize.c:28 libc-2.23.so
getpagesize
1 1.4e-05 memcpy.S:50 libc-2.23.so memcpy
1 1.4e-05 fileops.c:501 libc-2.23.so
new_do_write
1 1.4e-05 random.c:288 libc-2.23.so random
1 1.4e-05 strtod_l.c:197 libc-2.23.so
round_and_return
1 1.4e-05 strtod_l.c:338 libc-2.23.so
str_to_mpn.isra.0
1 1.4e-05 strerror_l.c:66 libc-2.23.so
strerror_thread_freeres
1 1.4e-05 strlen.S:88 libc-2.23.so strlen
1 1.4e-05 vfprintf.c:1236 libc-2.23.so vfprintf
1 1.4e-05 k_standard.c:99 libm-2.23.so
__kernel_standard
1 1.4e-05 slowpow.c:51 libm-2.23.so
__slowpow
1 1.4e-05 allocatestack.c:762 libpthread-2.23.so
__deallocate_stack
1 1.4e-05 cleanup_compat.c:41 libpthread-2.23.so
_pthread_cleanup_pop
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