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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.
This commit is contained in:
Jan Beulich 2018-04-26 08:45:35 +02:00 committed by Jan Beulich
parent bed3d976b7
commit 0e0eea7820
10 changed files with 85 additions and 30 deletions
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8
gas/ChangeLog
View File

@ -1,3 +1,11 @@
2018-04-26 Jan Beulich <jbeulich@suse.com>
* config/tc-i386.c (parse_real_register): Check FPU register
earlier.
* testsuite/gas/i386/fpu.s, testsuite/gas/i386/fpu.l,
testsuite/gas/i386/stN.s, testsuite/gas/i386/stN.l: New.
* testsuite/gas/i386/i386.exp: Run new tests.
2018-04-26 Jan Beulich <jbeulich@suse.com>
* config/tc-i386.c (build_modrm_byte): Use tabs for indentation.

11
gas/config/tc-i386.c
View File

@ -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;

4
gas/testsuite/gas/i386/fpu.l Normal file
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@ -0,0 +1,4 @@
.*: Assembler messages:
.*:6: Error: .*`fneni'.*
.*:11: Error: .*`fneni'.*
.*:12: Error: .*`fnsetpm'.*

12
gas/testsuite/gas/i386/fpu.s Normal file
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@ -0,0 +1,12 @@
.text
.intel_syntax noprefix
.arch generic32
fpu:
.arch .287
fneni
fnsetpm
.arch .no287
.arch .387
fneni
fnsetpm

2
gas/testsuite/gas/i386/i386.exp
View File

@ -170,6 +170,8 @@ if [expr ([istarget "i*86-*-*"] || [istarget "x86_64-*-*"]) && [gas_32_check]]
run_list_test "no87" "-al"
run_list_test "no87-2" "-march=i686+no87 -al"
run_list_test "no87-3" "-al"
run_list_test "stN" "-al"
run_list_test "fpu"
run_list_test "nommx-1" "-al"
run_list_test "nommx-2" "-march=core+nommx -al"
run_list_test "nommx-3" "-march=+nommx -al"

16
gas/testsuite/gas/i386/stN.l Normal file
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@ -0,0 +1,16 @@
.*: Assembler messages:
.*:6: Error: .*junk.*
.*:7: Error: .*junk.*
.*:8: Error: .*junk.*
GAS LISTING .*
[ ]*1[ ]+\.text
[ ]*2[ ]+\.intel_syntax noprefix
[ ]*3[ ]+\.arch \.no87
[ ]*4[ ]+stN:
[ ]*5[ ]+\?\?\?\? A1000000[ ]+mov eax, st
[ ]*5[ ]+00
[ ]*6[ ]+mov eax, st\(7\)
[ ]*7[ ]+mov eax, st \( 7 \)
[ ]*8[ ]+mov eax, x\(7\)

8
gas/testsuite/gas/i386/stN.s Normal file
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@ -0,0 +1,8 @@
.text
.intel_syntax noprefix
.arch .no87
stN:
mov eax, st
mov eax, st(7)
mov eax, st ( 7 )
mov eax, x(7)

6
opcodes/ChangeLog
View File

@ -1,3 +1,9 @@
2018-04-26 Jan Beulich <jbeulich@suse.com>
* i386-gen.c (cpu_flag_init): CPU_I586_FLAGS inherits Cpu387 only.
CPU_287_FLAGS is Cpu287 only. CPU_387_FLAGS is Cpu387 only.
* i386-init.h: Re-generate.
2018-04-26 Jan Beulich <jbeulich@suse.com>
* i386-gen.c (VexImmExt): Delete.

6
opcodes/i386-gen.c
View File

@ -58,7 +58,7 @@ static initializer cpu_flag_init[] =
{ "CPU_I486_FLAGS",
"CPU_I386_FLAGS|Cpu486" },
{ "CPU_I586_FLAGS",
"CPU_I486_FLAGS|CPU_387_FLAGS|Cpu586" },
"CPU_I486_FLAGS|Cpu387|Cpu586" },
{ "CPU_I686_FLAGS",
"CPU_I586_FLAGS|Cpu686|Cpu687" },
{ "CPU_PENTIUMPRO_FLAGS",
@ -104,9 +104,9 @@ static initializer cpu_flag_init[] =
{ "CPU_8087_FLAGS",
"Cpu8087" },
{ "CPU_287_FLAGS",
"CPU_8087_FLAGS|Cpu287" },
"Cpu287" },
{ "CPU_387_FLAGS",
"CPU_287_FLAGS|Cpu387" },
"Cpu387" },
{ "CPU_687_FLAGS",
"CPU_387_FLAGS|Cpu687" },
{ "CPU_CLFLUSH_FLAGS",

42
opcodes/i386-init.h
View File

@ -35,7 +35,7 @@
0, 0, 0, 0, 0, 0, 0, 0 } }
#define CPU_GENERIC64_FLAGS \
{ { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0, 0, 0, \
{ { 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 1, 1, 1, 0, 0, 0, \
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
@ -83,7 +83,7 @@
0, 0, 0, 0, 0, 0, 0, 0 } }
#define CPU_I586_FLAGS \
{ { 1, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, \
{ { 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, \
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
@ -91,7 +91,7 @@
0, 0, 0, 0, 0, 0, 0, 0 } }
#define CPU_I686_FLAGS \
{ { 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, \
{ { 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, \
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
@ -99,7 +99,7 @@
0, 0, 0, 0, 0, 0, 0, 0 } }
#define CPU_PENTIUMPRO_FLAGS \
{ { 1, 1, 1, 1, 1, 1, 0, 1, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, \
{ { 1, 1, 1, 1, 1, 1, 0, 1, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, \
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
@ -107,7 +107,7 @@
0, 0, 0, 0, 0, 0, 0, 0 } }
#define CPU_P2_FLAGS \
{ { 1, 1, 1, 1, 1, 1, 0, 1, 0, 1, 1, 1, 1, 0, 1, 0, 0, 0, 0, 0, \
{ { 1, 1, 1, 1, 1, 1, 0, 1, 0, 0, 0, 1, 1, 0, 1, 0, 0, 0, 0, 0, \
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
@ -115,7 +115,7 @@
1, 0, 0, 0, 0, 0, 0, 0 } }
#define CPU_P3_FLAGS \
{ { 1, 1, 1, 1, 1, 1, 0, 1, 0, 1, 1, 1, 1, 0, 1, 1, 0, 0, 0, 0, \
{ { 1, 1, 1, 1, 1, 1, 0, 1, 0, 0, 0, 1, 1, 0, 1, 1, 0, 0, 0, 0, \
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
@ -123,7 +123,7 @@
1, 1, 0, 0, 0, 0, 0, 0 } }
#define CPU_P4_FLAGS \
{ { 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 0, 0, 0, \
{ { 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1, 0, 1, 1, 1, 0, 0, 0, \
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
@ -131,7 +131,7 @@
1, 1, 0, 0, 0, 0, 0, 0 } }
#define CPU_NOCONA_FLAGS \
{ { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, \
{ { 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 1, \
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, \
0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
@ -139,7 +139,7 @@
1, 1, 0, 0, 0, 0, 0, 0 } }
#define CPU_CORE_FLAGS \
{ { 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, \
{ { 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 1, \
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, \
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
@ -147,7 +147,7 @@
1, 1, 0, 0, 0, 0, 0, 0 } }
#define CPU_CORE2_FLAGS \
{ { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, \
{ { 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 1, \
0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, \
0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
@ -155,7 +155,7 @@
1, 1, 0, 0, 0, 0, 0, 0 } }
#define CPU_COREI7_FLAGS \
{ { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, \
{ { 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 1, \
0, 0, 0, 0, 1, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 0, \
0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
@ -203,7 +203,7 @@
1, 1, 0, 0, 0, 0, 0, 0 } }
#define CPU_BDVER1_FLAGS \
{ { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, \
{ { 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 1, \
0, 1, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
0, 1, 0, 1, 1, 0, 1, 1, 1, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 1, \
0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
@ -211,7 +211,7 @@
1, 1, 0, 0, 0, 0, 0, 0 } }
#define CPU_BDVER2_FLAGS \
{ { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, \
{ { 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 1, \
0, 1, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
0, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1, \
0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
@ -219,7 +219,7 @@
1, 1, 0, 0, 0, 0, 0, 0 } }
#define CPU_BDVER3_FLAGS \
{ { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, \
{ { 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 1, \
0, 1, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1, \
0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
@ -227,7 +227,7 @@
1, 1, 0, 0, 0, 0, 0, 0 } }
#define CPU_BDVER4_FLAGS \
{ { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, \
{ { 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 1, \
0, 1, 0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, \
0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
@ -235,7 +235,7 @@
1, 1, 0, 0, 0, 0, 0, 0 } }
#define CPU_ZNVER1_FLAGS \
{ { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, \
{ { 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 1, \
0, 1, 0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
0, 1, 1, 1, 1, 1, 0, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, \
0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0, 0, 0, 0, 0, \
@ -243,7 +243,7 @@
1, 1, 0, 0, 0, 0, 0, 0 } }
#define CPU_BTVER1_FLAGS \
{ { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, \
{ { 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 1, \
0, 1, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 1, \
0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
@ -251,7 +251,7 @@
1, 1, 0, 0, 0, 0, 0, 0 } }
#define CPU_BTVER2_FLAGS \
{ { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, \
{ { 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 1, \
0, 1, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 0, 1, 1, 0, 1, 0, 0, 1, 0, 1, \
0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
@ -267,7 +267,7 @@
0, 0, 0, 0, 0, 0, 0, 0 } }
#define CPU_287_FLAGS \
{ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
{ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
@ -275,7 +275,7 @@
0, 0, 0, 0, 0, 0, 0, 0 } }
#define CPU_387_FLAGS \
{ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, \
{ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, \
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
@ -283,7 +283,7 @@
0, 0, 0, 0, 0, 0, 0, 0 } }
#define CPU_687_FLAGS \
{ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, \
{ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, \
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \