------- Comment #1 from hjl dot tools at gmail dot com 2009-07-20 21:13 -------
Vectorizer needs to check signs when vectorizing conversions from
unsigned int to float if int > float vector insn is used. For example:
cvtdq2ps u4(%rip), %xmm2
movaps %xmm2, %xmm1
pxor %xmm0, %xmm0
cmpltps %xmm0, %xmm1
andps _2il0floatpacket.1(%rip), %xmm1
addps %xmm1, %xmm2
...
_2il0floatpacket.1:
.long 0x4f800000,0x4f800000,0x4f800000,0x4f800000
--
hjl dot tools at gmail dot com changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |irar at il dot ibm dot com,
| |rguenth at gcc dot gnu dot
| |org
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
Last reconfirmed|0000-00-00 00:00:00 |2009-07-20 21:13:31
date| |
Version|4.4.0 |4.3.4
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40809
