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[Bug c/36370] Is the sse2 psrlq insn accessible ?
- From: "ubizjak at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 29 May 2008 14:30:05 -0000
- Subject: [Bug c/36370] Is the sse2 psrlq insn accessible ?
- References: <bug-36370-717@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #5 from ubizjak at gmail dot com 2008-05-29 14:30 -------
Please note that psrlq doesn't implement x[N] << y[N] shift, but x[N] << y
shift. That is, all elements are shifted by the same value. Please see Intel
instruction reference.
Also, psrlq doesn't support memory operands.
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36370