>From emit-rtl.c:
/* ??? x86 sse code makes heavy use of *paradoxical* vector subregs,
i.e. (subreg:V4SF (reg:SF) 0). This surely isn't the cleanest way to
represent this. It's questionable if this ought to be represented at
all -- why can't this all be hidden in post-reload splitters that make
arbitrarily mode changes to the registers themselves. */
--
Summary: (subreg:V4SF (reg:SF) 0) should be invalid RTL, happens
for -mfp-math=sse
Product: gcc
Version: 4.1.0
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: target
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: pinskia at gcc dot gnu dot org
GCC target triplet: i?86-*-*, x86_64-*-*
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24436
