This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
[Bug target/47977] powerpc (-mcpu=8548) Wrong code for double operations in little endian mode
- From: "jsm28 at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Thu, 3 Mar 2011 16:22:14 +0000
- Subject: [Bug target/47977] powerpc (-mcpu=8548) Wrong code for double operations in little endian mode
- Auto-submitted: auto-generated
- References: <bug-47977-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47977
Joseph S. Myers <jsm28 at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Component|c |target
--- Comment #1 from Joseph S. Myers <jsm28 at gcc dot gnu.org> 2011-03-03 16:22:13 UTC ---
Using --enable-e500-double for a non-e500 target will produce a broken
compiler. So if you want e500 double code to work at all, try the
powerpc-eabispe target. (Or else pass -mabi=spe explicitly.)
It is also known that all the insn patterns for e500 are only expected to work
for big-endian. In general little-endian Power is hardly tested at all, but
the SPE case is specifically expected to be broken.