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| author | H.J. Lu <hjl.tools@gmail.com> | 2018-09-17 09:26:18 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2018-09-17 09:26:29 -0700 |
| commit | 03751133023c5623cf60f8d3222cb79a376331f9 (patch) | |
| tree | 0ae561fd6f959782ff846f94f20465ee0d47a3a1 /gas/NEWS | |
| parent | ec6f095abc396e60f46e1b4724d0eb2e4d18213d (diff) | |
| download | gdb-03751133023c5623cf60f8d3222cb79a376331f9.zip gdb-03751133023c5623cf60f8d3222cb79a376331f9.tar.gz gdb-03751133023c5623cf60f8d3222cb79a376331f9.tar.bz2 | |
x86: Add -mvexwig=[0|1] option to assembler
Add -mvexwig=[0|1] option to x86 assembler to control how the assembler
should encode the VEX.W bit in WIG VEX instructions.
* gas/NEWS: Mention -mvexwig=[0|1] option.
* config/tc-i386.c (vexwig): New.
(build_vex_prefix): Set the VEX.W bit for -mvexwig=1 for WIG
VEX instructions.
(OPTION_MVEXWIG): New.
(md_longopts): Add -mvexwig=.
(md_parse_option): Handle OPTION_MVEXWIG.
(md_show_usage): Show -mvexwig=[0|1].
* doc/c-i386.texi: Document -mvexwig=[0|1].
* testsuite/gas/i386/avx-wig.d: New file.
* testsuite/gas/i386/avx-wig.s: Likewise.
* testsuite/gas/i386/avx2-wig.d: Likewise.
* testsuite/gas/i386/avx2-wig.s: Likewise.
* testsuite/gas/i386/x86-64-avx-wig.d: Likewise.
* testsuite/gas/i386/x86-64-avx-wig.s: Likewise.
* testsuite/gas/i386/x86-64-avx2-wig.d: Likewise.
* testsuite/gas/i386/x86-64-avx2-wig.s: Likewise.
* testsuite/gas/i386/i386.exp: Run avx-wig, avx2-wig,
x86-64-avx-wig and x86-64-avx2-wig.
Diffstat (limited to 'gas/NEWS')
| -rw-r--r-- | gas/NEWS | 3 |
1 files changed, 3 insertions, 0 deletions
@@ -1,5 +1,8 @@ -*- text -*- +* Add -mvexwig=[0|1] option to x86 assembler to control encoding of + VEX.W-ignored (WIG) VEX instructions. + * Add -mx86-used-note=[yes|no] option to generate (or not) x86 GNU property notes. Add a --enable-x86-used-note configure time option to set the default behavior. Set the default if the configure option is not used |