diff options
| author | H.J. Lu <hjl.tools@gmail.com> | 2020-06-29 06:28:31 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2020-06-29 06:28:46 -0700 |
| commit | 8c190ce03837391885bbba9055bea04d36077f9c (patch) | |
| tree | 9c235d4c1c749d7a75ab69135df39698dc985787 | |
| parent | a57f74bb7cc15f1116f72c6d70dcc3f31c303ad4 (diff) | |
| download | gdb-8c190ce03837391885bbba9055bea04d36077f9c.zip gdb-8c190ce03837391885bbba9055bea04d36077f9c.tar.gz gdb-8c190ce03837391885bbba9055bea04d36077f9c.tar.bz2 | |
x86: Support VEX base opcode length > 1
Intel AMX instructions with 8-bit immediate opcode extension without
operands:
tilerelease, 0, 0x49c0, None, 2, CpuAMX_TILE|Cpu64, Vex|VexOpcode=1|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
Update build_vex_prefix to support VEX base opcode length > 1.
* tc-i386.c (build_vex_prefix): Support VEX base opcode length > 1.
(md_assemble): Don't process ImmExt without operands.
| -rw-r--r-- | gas/ChangeLog | 5 | ||||
| -rw-r--r-- | gas/config/tc-i386.c | 8 |
2 files changed, 7 insertions, 6 deletions
diff --git a/gas/ChangeLog b/gas/ChangeLog index fdec78b..e3e1c47 100644 --- a/gas/ChangeLog +++ b/gas/ChangeLog @@ -1,3 +1,8 @@ +2020-06-29 H.J. Lu <hongjiu.lu@intel.com> + + * tc-i386.c (build_vex_prefix): Support VEX base opcode length > 1. + (md_assemble): Don't process ImmExt without operands. + 2020-06-29 Hans-Peter Nilsson <hp@bitrange.com> PR gas/25331 diff --git a/gas/config/tc-i386.c b/gas/config/tc-i386.c index ae2a2c1..be89478 100644 --- a/gas/config/tc-i386.c +++ b/gas/config/tc-i386.c @@ -3664,7 +3664,7 @@ build_vex_prefix (const insn_template *t) } } - switch ((i.tm.base_opcode >> 8) & 0xff) + switch ((i.tm.base_opcode >> (i.tm.opcode_length << 3)) & 0xff) { case 0: implied_prefix = 0; @@ -4873,12 +4873,8 @@ md_assemble (char *line) if (!process_operands ()) return; } - else + else if (!quiet_warnings && i.tm.opcode_modifier.ugh) { - if (i.tm.opcode_modifier.immext) - process_immext (); - - if (!quiet_warnings && i.tm.opcode_modifier.ugh) /* UnixWare fsub no args is alias for fsubp, fadd -> faddp, etc. */ as_warn (_("translating to `%sp'"), i.tm.name); } |