[Bug tree-optimization/107855] gcc.dg/vect/vect-ifcvt-18.c FAILs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107855 Jakub Jelinek changed: What|Removed |Added Target Milestone|13.3|13.4 --- Comment #9 from Jakub Jelinek --- GCC 13.3 is being released, retargeting bugs to GCC 13.4.
[Bug tree-optimization/107855] gcc.dg/vect/vect-ifcvt-18.c FAILs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107855
--- Comment #8 from ro at CeBiTec dot Uni-Bielefeld.DE ---
> --- Comment #6 from Xi Ruoyao ---
> Hmm, the test contains
>
> "/* { dg-additional-options "-Ofast -mavx" { target avx_runtime } } */"
>
> So it passes on AVX capable native builds, but fails otherwise.
I can reproduce things in a VM now: when it doesn't have avx support,
the test is compiled with -msse2 only and FAILs both for the dump and
execution:
FAIL: gcc.dg/vect/vect-ifcvt-18.c -flto -ffat-lto-objects scan-tree-dump vect
"vectorized 3 loops"
FAIL: gcc.dg/vect/vect-ifcvt-18.c -flto -ffat-lto-objects execution test
FAIL: gcc.dg/vect/vect-ifcvt-18.c execution test
FAIL: gcc.dg/vect/vect-ifcvt-18.c scan-tree-dump vect "vectorized 3 loops"
The test aborts here:
Thread 2 received signal SIGABRT, Aborted.
#0 0xfe26e385 in __lwp_sigqueue () from /lib/libc.so.1
#1 0xfe2660ef in thr_kill () from /lib/libc.so.1
#2 0xfe19db82 in raise () from /lib/libc.so.1
#3 0xfe16b1f4 in abort () from /lib/libc.so.1
#4 0x08050d58 in main ()
at
/vol/gcc/src/hg/master/local/gcc/testsuite/gcc.dg/vect/vect-ifcvt-18.c:34
and the dump shows
/vol/gcc/src/hg/master/local/gcc/testsuite/gcc.dg/vect/vect-ifcvt-18.c:28:17:
note: === analyze_loop_nest ===
/vol/gcc/src/hg/master/local/gcc/testsuite/gcc.dg/vect/vect-ifcvt-18.c:28:17:
note: === vect_analyze_loop_form ===
/vol/gcc/src/hg/master/local/gcc/testsuite/gcc.dg/vect/vect-ifcvt-18.c:28:17:
note: using as main loop exit: 13 -> 14 [AUX: 0]
/vol/gcc/src/hg/master/local/gcc/testsuite/gcc.dg/vect/vect-ifcvt-18.c:28:17:
missed: not vectorized: unsupported control flow in loop.
/vol/gcc/src/hg/master/local/gcc/testsuite/gcc.dg/vect/vect-ifcvt-18.c:28:17:
missed: bad loop form.
/vol/gcc/src/hg/master/local/gcc/testsuite/gcc.dg/vect/vect-ifcvt-18.c:28:17:
missed: couldn't vectorize loop
When I add avx support to the VM, the test PASSes.
It seems the test is missing some requirement here.
[Bug tree-optimization/107855] gcc.dg/vect/vect-ifcvt-18.c FAILs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107855 Richard Biener changed: What|Removed |Added Target Milestone|13.2|13.3 --- Comment #7 from Richard Biener --- GCC 13.2 is being released, retargeting bugs to GCC 13.3.
[Bug tree-optimization/107855] gcc.dg/vect/vect-ifcvt-18.c FAILs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107855
Xi Ruoyao changed:
What|Removed |Added
Status|UNCONFIRMED |NEW
Last reconfirmed||2023-05-13
CC||xry111 at gcc dot gnu.org
Ever confirmed|0 |1
--- Comment #6 from Xi Ruoyao ---
Hmm, the test contains
"/* { dg-additional-options "-Ofast -mavx" { target avx_runtime } } */"
So it passes on AVX capable native builds, but fails otherwise.
[Bug tree-optimization/107855] gcc.dg/vect/vect-ifcvt-18.c FAILs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107855 Richard Biener changed: What|Removed |Added Target Milestone|13.0|13.2 --- Comment #5 from Richard Biener --- GCC 13.1 is being released, retargeting bugs to GCC 13.2.
[Bug tree-optimization/107855] gcc.dg/vect/vect-ifcvt-18.c FAILs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107855 --- Comment #4 from Rainer Orth --- (In reply to Richard Biener from comment #2) > Can you attach the ifcvt dump as well? The issue seems to be that only the > first loop is if-converted, so floats are not handled at all (only a single > loop is vectorized). Sure, done. > Not sure about the runtime FAIL with 32bit - does that also happen with -O0? No, the test runs successfully then.
[Bug tree-optimization/107855] gcc.dg/vect/vect-ifcvt-18.c FAILs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107855 --- Comment #3 from Rainer Orth --- Created attachment 53959 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=53959=edit 32-bit i386-pc-solaris2.11 vect-ifcvt-18.c.171t.ifcvt
[Bug tree-optimization/107855] gcc.dg/vect/vect-ifcvt-18.c FAILs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107855 --- Comment #2 from Richard Biener --- Can you attach the ifcvt dump as well? The issue seems to be that only the first loop is if-converted, so floats are not handled at all (only a single loop is vectorized). Not sure about the runtime FAIL with 32bit - does that also happen with -O0?
[Bug tree-optimization/107855] gcc.dg/vect/vect-ifcvt-18.c FAILs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107855 Rainer Orth changed: What|Removed |Added Target Milestone|--- |13.0
[Bug tree-optimization/107855] gcc.dg/vect/vect-ifcvt-18.c FAILs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107855 --- Comment #1 from Rainer Orth --- Created attachment 53958 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=53958=edit 32-bit i386-pc-solaris2.11 vect-ifcvt-18.c.172t.vect
