[Bug c/83108] Unaligned 128bit dereference causes segfault with -O2 on x86-64

2017-11-22 Thread trippels at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83108 --- Comment #4 from Markus Trippelsdorf --- (In reply to Jon Levell from comment #3) > I'm surprised this was closed invalid. > > "While the x86 architecture originally did not require aligned memory > access, and still works without it, some

[Bug c/83108] Unaligned 128bit dereference causes segfault with -O2 on x86-64

2017-11-22 Thread gcc-bugspam at coralbark dot net
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83108 --- Comment #3 from Jon Levell --- I'm surprised this was closed invalid. "While the x86 architecture originally did not require aligned memory access, and still works without it, some SSE2 instructions on x86 CPUs do require the data to be

[Bug c/83108] Unaligned 128bit dereference causes segfault with -O2 on x86-64

2017-11-22 Thread trippels at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83108 Markus Trippelsdorf changed: What|Removed |Added Status|UNCONFIRMED |RESOLVED CC|

[Bug c/83108] Unaligned 128bit dereference causes segfault with -O2 on x86-64

2017-11-22 Thread gcc-bugspam at coralbark dot net
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83108 --- Comment #1 from Jon Levell --- Created attachment 42682 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=42682=edit Plain source file