When the enclosed test case is compiled with -O3, the vectorization code loads
and SSE register with 0x00000001000000010000000100000001 instead of
0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF, then ANDs this with elements of the array.
This causes the code to fail.
--
Summary: vectorization ANDs array elements together incorrectly
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: major
Priority: P3
Component: c
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: Daniel dot Davies at xerox dot com
GCC build triplet: i386-pc-solaris2.10
GCC host triplet: i386-pc-solaris2.10
GCC target triplet: i386-pc-solaris2.10
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44507