x86: correct decoding of packed-FP-only AVX encodings
authorJan Beulich <jbeulich@suse.com>
Tue, 9 Jun 2020 06:56:39 +0000 (08:56 +0200)
committerJan Beulich <jbeulich@suse.com>
Tue, 9 Jun 2020 06:56:39 +0000 (08:56 +0200)
commitbf926894b63fef2559685909ea2e9f794648a256
tree85f1ff082f3bc576874260a6efc43a79e6e79f82
parenta5aaedb9dba2775d855fa394246ede08e9f36652
x86: correct decoding of packed-FP-only AVX encodings

Various AVX insns utilizing the X macro fail to reject F3/F2 embedded
prefix encodings. As the PREFIX_OPCODE attribute wasn't used by any
non-legacy-encoded insns so far, re-use it to achieve the intended
effect.
gas/ChangeLog
gas/testsuite/gas/i386/prefix.d
gas/testsuite/gas/i386/prefix.s
opcodes/ChangeLog
opcodes/i386-dis.c