https://sourceware.org/bugzilla/show_bug.cgi?id=19685
Bug ID: 19685
Summary: vcmppd, vcmpps, vcmpsd, vcmpss disassembly is wrong
Product: binutils
Version: 2.26
Status: NEW
Severity: normal
Priority: P2
Component: binutils
Assignee: unassigned at sourceware dot org
Reporter: jdetter at wisc dot edu
Target Milestone: ---
I compiled the following lines using GNU as:
vcmppd $0x0, %xmm0, %xmm0, %xmm0
vcmpps $0x0, %xmm0, %xmm0, %xmm0
vcmpsd $0x0, %xmm0, %xmm0, %xmm0
vcmpss $0x0, %xmm0, %xmm0, %xmm0
And the disassembly doesn't match. The mnemonics are wrong and objdump
interprets the instruction with 3 operands instead of 4:
40049a: c5 f9 c2 c0 00 vcmpeqpd %xmm0,%xmm0,%xmm0
40049f: c5 f8 c2 c0 00 vcmpeqps %xmm0,%xmm0,%xmm0
4004a4: c5 fb c2 c0 00 vcmpeqsd %xmm0,%xmm0,%xmm0
4004a9: c5 fa c2 c0 00 vcmpeqss %xmm0,%xmm0,%xmm0
Output from version:
[detter@galapagos-03] (31)$ objdump --version
GNU objdump (GNU Binutils) 2.26.20160125
Copyright (C) 2015 Free Software Foundation, Inc.
This program is free software; you may redistribute it under the terms of
the GNU General Public License version 3 or (at your option) any later version.
This program has absolutely no warranty.
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