diff options
| author | Jan Beulich <jbeulich@novell.com> | 2018-04-26 08:45:35 +0200 |
|---|---|---|
| committer | Jan Beulich <jbeulich@suse.com> | 2018-04-26 08:45:35 +0200 |
| commit | 0e0eea782025d92f894f6d132aae2507c6a90a7b (patch) | |
| tree | 5f39ceb89a86e72bcaf7f14070e8749f9f119b13 /gas/config/tc-i386.c | |
| parent | bed3d976b7a4fd111f3e291f1bd896cf441b3479 (diff) | |
| download | gdb-0e0eea782025d92f894f6d132aae2507c6a90a7b.zip gdb-0e0eea782025d92f894f6d132aae2507c6a90a7b.tar.gz gdb-0e0eea782025d92f894f6d132aae2507c6a90a7b.tar.bz2 | |
x86: x87-related adjustments
Neither 287 wrt 8087 nor 387 wrt 287 are proper supersets - in each case
some insns get removed from the ISA (they become NOPs, but code intended
for newer co-processors should not use them).
Furthermore with .no87, ST should not be recognized as a register name.
Diffstat (limited to 'gas/config/tc-i386.c')
| -rw-r--r-- | gas/config/tc-i386.c | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/gas/config/tc-i386.c b/gas/config/tc-i386.c index 42186ff..fcd40e2 100644 --- a/gas/config/tc-i386.c +++ b/gas/config/tc-i386.c @@ -10109,6 +10109,11 @@ parse_real_register (char *reg_string, char **end_op) /* Handle floating point regs, allowing spaces in the (i) part. */ if (r == i386_regtab /* %st is first entry of table */) { + if (!cpu_arch_flags.bitfield.cpu8087 + && !cpu_arch_flags.bitfield.cpu287 + && !cpu_arch_flags.bitfield.cpu387) + return (const reg_entry *) NULL; + if (is_space_char (*s)) ++s; if (*s == '(') @@ -10149,12 +10154,6 @@ parse_real_register (char *reg_string, char **end_op) && !cpu_arch_flags.bitfield.cpui386) return (const reg_entry *) NULL; - if (r->reg_type.bitfield.tbyte - && !cpu_arch_flags.bitfield.cpu8087 - && !cpu_arch_flags.bitfield.cpu287 - && !cpu_arch_flags.bitfield.cpu387) - return (const reg_entry *) NULL; - if (r->reg_type.bitfield.regmmx && !cpu_arch_flags.bitfield.cpuregmmx) return (const reg_entry *) NULL; |