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[Bug target/32280] _mm_srli_si128, heinous code for some shifts
- From: "pinskia at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 11 Jun 2007 07:44:30 -0000
- Subject: [Bug target/32280] _mm_srli_si128, heinous code for some shifts
- References: <bug-32280-9709@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #3 from pinskia at gcc dot gnu dot org 2007-06-11 07:44 -------
Because you should not be have two patterns that could match (with one differs
via a clobber). The way to fix this is have the sse2_ashlti3 one do what
ashlti3_2 does for "r" constraints also.
This is the normal two patterns doing the same thing problem.
-- Pinski
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Component|rtl-optimization |target
Ever Confirmed|0 |1
GCC host triplet|x86-64, linux, gnu |
GCC target triplet| |x86_64-*-*
Keywords| |missed-optimization
Last reconfirmed|0000-00-00 00:00:00 |2007-06-11 07:44:30
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32280