The attached test case segfaults because the definition of V
would differ with and without -msse. Without, we would use
vector emulation and the type has BLKmode; with, we would
have native instructions and the type has V4SFmode.
Vector types probably need a functional query for TYPE_MODE,
so that we get different modes based on the target flags for
the current function.
--
Summary: Vector type definitions not compatible with attribute
target
Product: gcc
Version: 4.4.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: rth at gcc dot gnu dot org
GCC target triplet: i386-*
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38240