MatCat.OpenSource/8sa1-binutils-gdb
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x86: re-number PREFIX_0X<nn>

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In preparation to use PREFIX_0X<nn> attributes also in VEX/XOP/EVEX
encoding templates, renumber the pseudo-enumerators such that their
values can then also be used directly in the respective prefix bit
fields.
This commit is contained in:
Jan Beulich 2021-03-23 17:09:53 +01:00
parent dac10fb0d1
commit b933fa4b5d
5 changed files with 192 additions and 181 deletions
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4
gas/ChangeLog
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@ -1,3 +1,7 @@
2021-03-23 Jan Beulich <jbeulich@suse.com>
* config/tc-i386.c (pte): Re-order opc_pfx[] entries.
2021-03-23 Jan Beulich <jbeulich@suse.com> 2021-03-23 Jan Beulich <jbeulich@suse.com>
* config/tc-i386.c (output_i386_opcode): Invoke * config/tc-i386.c (output_i386_opcode): Invoke

2
gas/config/tc-i386.c
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@ -3239,7 +3239,7 @@ pi (const char *line, i386_insn *x)
static void static void
pte (insn_template *t) pte (insn_template *t)
{ {
static const unsigned char opc_pfx[] = { 0, 0x66, 0xf2, 0xf3 }; static const unsigned char opc_pfx[] = { 0, 0x66, 0xf3, 0xf2 };
static const char *const opc_spc[] = { static const char *const opc_spc[] = {
NULL, "0f", "0f38", "0f3a", NULL, NULL, NULL, NULL, NULL, "0f", "0f38", "0f3a", NULL, NULL, NULL, NULL,
"XOP08", "XOP09", "XOP0A", "XOP08", "XOP09", "XOP0A",

6
opcodes/ChangeLog
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@ -1,3 +1,9 @@
2021-03-23 Jan Beulich <jbeulich@suse.com>
* i386-opc.h (PREFIX_0XF2, PREFIX_0XF3): Excahnge values. Extend
comment.
* i386-tbl.h: Re-generate.
2021-03-23 Jan Beulich <jbeulich@suse.com> 2021-03-23 Jan Beulich <jbeulich@suse.com>
* i386-opc.h (struct insn_template): Move cpu_flags field past * i386-opc.h (struct insn_template): Move cpu_flags field past

11
opcodes/i386-opc.h
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@ -593,16 +593,17 @@ enum
#define SPACE_XOP09 9 #define SPACE_XOP09 9
#define SPACE_XOP0A 0xA #define SPACE_XOP0A 0xA
OpcodeSpace, OpcodeSpace,
/* Opcode prefix: /* Opcode prefix (values chosen to be usable directly in
VEX/XOP/EVEX pp fields):
0: None 0: None
1: Add 0x66 opcode prefix. 1: Add 0x66 opcode prefix.
2: Add 0xf2 opcode prefix. 2: Add 0xf3 opcode prefix.
3: Add 0xf3 opcode prefix. 3: Add 0xf2 opcode prefix.
*/ */
#define PREFIX_NONE 0 #define PREFIX_NONE 0
#define PREFIX_0X66 1 #define PREFIX_0X66 1
#define PREFIX_0XF2 2 #define PREFIX_0XF3 2
#define PREFIX_0XF3 3 #define PREFIX_0XF2 3
OpcodePrefix, OpcodePrefix,
/* number of VEX source operands: /* number of VEX source operands:
0: <= 2 source operands. 0: <= 2 source operands.

350
opcodes/i386-tbl.h
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