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| author | H.J. Lu <hjl.tools@gmail.com> | 2018-02-22 06:18:27 -0800 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2018-02-22 06:18:39 -0800 |
| commit | 6b6b680700699c15e22b6c36975729035676eef1 (patch) | |
| tree | 436eba8cc606c8539c1185c14d74efb96b43a841 /gas/ChangeLog | |
| parent | 39334a61e63321352304cbae77b37fcba4fed662 (diff) | |
| download | gdb-6b6b680700699c15e22b6c36975729035676eef1.zip gdb-6b6b680700699c15e22b6c36975729035676eef1.tar.gz gdb-6b6b680700699c15e22b6c36975729035676eef1.tar.bz2 | |
x86: Add {rex} pseudo prefix
Add {rex} pseudo prefix to generate a REX byte for integer and legacy
vector instructions if possible. Note that this differs from the rex
prefix which generates REX prefix unconditionally.
gas/
* config/tc-i386.c (_i386_insn): Add rex_encoding.
(md_assemble): When i.rex_encoding is true, generate a REX byte
if possible.
(parse_insn): Set i.rex_encoding for {rex}.
* doc/c-i386.texi: Document {rex}.
* testsuite/gas/i386/x86-64-pseudos.s: Add {rex} tests.
* testsuite/gas/i386/x86-64-pseudos.d: Updated.
opcodes/
* i386-opc.tbl: Add {rex},
* i386-tbl.h: Regenerated.
Diffstat (limited to 'gas/ChangeLog')
| -rw-r--r-- | gas/ChangeLog | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/gas/ChangeLog b/gas/ChangeLog index ce7e258..20ea246 100644 --- a/gas/ChangeLog +++ b/gas/ChangeLog @@ -1,3 +1,13 @@ +2018-02-22 H.J. Lu <hongjiu.lu@intel.com> + + * config/tc-i386.c (_i386_insn): Add rex_encoding. + (md_assemble): When i.rex_encoding is true, generate a REX byte + if possible. + (parse_insn): Set i.rex_encoding for {rex}. + * doc/c-i386.texi: Document {rex}. + * testsuite/gas/i386/x86-64-pseudos.s: Add {rex} tests. + * testsuite/gas/i386/x86-64-pseudos.d: Updated. + 2018-02-22 A. Wilcox <awilfox@adelielinux.org> PR 22014 |