[Bug target/94587] Intrinsics optimization bug with -O2 -march=skylake-avx512

2020-04-14 Thread lopresti at gmail dot com
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94587 --- Comment #8 from Patrick J. LoPresti --- (In reply to Andrew Pinski from comment #6) > (In reply to Patrick J. LoPresti from comment #5) > > I did not use -ffp-contract=fast nor -funsafe-math-optimizations nor > > -ffast-math. Yet the statemen

[Bug target/94587] Intrinsics optimization bug with -O2 -march=skylake-avx512

2020-04-14 Thread jakub at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94587 --- Comment #7 from Jakub Jelinek --- Note, clang defaults to -ffp-contract=on which is like =fast (except when you use FP_CONTRACT pragma).

[Bug target/94587] Intrinsics optimization bug with -O2 -march=skylake-avx512

2020-04-14 Thread pinskia at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94587 --- Comment #6 from Andrew Pinski --- (In reply to Patrick J. LoPresti from comment #5) > I did not use -ffp-contract=fast nor -funsafe-math-optimizations nor > -ffast-math. Yet the statements were contracted. So the documentation has a > bug. N

[Bug target/94587] Intrinsics optimization bug with -O2 -march=skylake-avx512

2020-04-14 Thread lopresti at gmail dot com
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94587 --- Comment #5 from Patrick J. LoPresti --- (In reply to Andrew Pinski from comment #4) > > Note this is true even without using intrinsics really. You can get the > same behavior you are seeing with using standard C code. Yes, which is one

[Bug target/94587] Intrinsics optimization bug with -O2 -march=skylake-avx512

2020-04-14 Thread pinskia at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94587 Andrew Pinski changed: What|Removed |Added Resolution|--- |WONTFIX Status|REOPENED

[Bug target/94587] Intrinsics optimization bug with -O2 -march=skylake-avx512

2020-04-14 Thread lopresti at gmail dot com
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94587 Patrick J. LoPresti changed: What|Removed |Added Status|RESOLVED|REOPENED Resolution|INVALI

[Bug target/94587] Intrinsics optimization bug with -O2 -march=skylake-avx512

2020-04-14 Thread jakub at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94587 Jakub Jelinek changed: What|Removed |Added CC||jakub at gcc dot gnu.org Sta

[Bug target/94587] Intrinsics optimization bug with -O2 -march=skylake-avx512

2020-04-13 Thread marxin at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94587 Martin Liška changed: What|Removed |Added Status|UNCONFIRMED |NEW CC|