* [binutils-gdb] Remove %ME and used %NE for movbe.
@ 2024-06-18 2:57 Lili Cui
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From: Lili Cui @ 2024-06-18 2:57 UTC (permalink / raw)
To: binutils-cvs
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=f7b1fe8dc463d1cc0758d6c010a3082ff124e360
commit f7b1fe8dc463d1cc0758d6c010a3082ff124e360
Author: Cui, Lili <lili.cui@intel.com>
Date: Tue Jun 18 10:46:31 2024 +0800
Remove %ME and used %NE for movbe.
%ME is added specifically for movbe. Now with %NE, we can use
MOD table + %NE to indicate whether a {evex} prefix is needed.
opcodes/ChangeLog:
* i386-dis-evex-mod.h: Added movbe.
* i386-dis-evex.h: Let movbe go through the mod table.
* i386-dis.c (struct dis386): Removed %ME.
(putop): Removed case ME.
Diff:
---
opcodes/i386-dis-evex-mod.h | 10 ++++++++++
opcodes/i386-dis-evex.h | 4 ++--
opcodes/i386-dis.c | 10 ++--------
3 files changed, 14 insertions(+), 10 deletions(-)
diff --git a/opcodes/i386-dis-evex-mod.h b/opcodes/i386-dis-evex-mod.h
index 879c91f3b76..bba32658ecf 100644
--- a/opcodes/i386-dis-evex-mod.h
+++ b/opcodes/i386-dis-evex-mod.h
@@ -1,3 +1,13 @@
+ /* MOD_EVEX_MAP4_60 */
+ {
+ { "movbeS", { Gv, Mv }, PREFIX_NP_OR_DATA },
+ { "%NEmovbeS", { Gv, Ev }, PREFIX_NP_OR_DATA },
+ },
+ /* MOD_EVEX_MAP4_61 */
+ {
+ { "movbeS", { Mv, Gv }, PREFIX_NP_OR_DATA },
+ { "%NEmovbeS", { Ev, Gv }, PREFIX_NP_OR_DATA },
+ },
/* MOD_EVEX_MAP4_F8_P1 */
{
{ "enqcmds", { Gva, M }, 0 },
diff --git a/opcodes/i386-dis-evex.h b/opcodes/i386-dis-evex.h
index 77c2ee772d1..0f63b5f701d 100644
--- a/opcodes/i386-dis-evex.h
+++ b/opcodes/i386-dis-evex.h
@@ -983,8 +983,8 @@ static const struct dis386 evex_table[][256] = {
{ Bad_Opcode },
{ Bad_Opcode },
/* 60 */
- { "%MEmovbeS", { Gv, Ev }, PREFIX_NP_OR_DATA },
- { "%MEmovbeS", { Ev, Gv }, PREFIX_NP_OR_DATA },
+ { MOD_TABLE (MOD_EVEX_MAP4_60) },
+ { MOD_TABLE (MOD_EVEX_MAP4_61) },
{ Bad_Opcode },
{ Bad_Opcode },
{ Bad_Opcode },
diff --git a/opcodes/i386-dis.c b/opcodes/i386-dis.c
index 86745a1b933..3a1afcc2fce 100644
--- a/opcodes/i386-dis.c
+++ b/opcodes/i386-dis.c
@@ -960,6 +960,8 @@ enum
MOD_VEX_0F3849_X86_64_L_0_W_0,
+ MOD_EVEX_MAP4_60,
+ MOD_EVEX_MAP4_61,
MOD_EVEX_MAP4_F8_P_1,
MOD_EVEX_MAP4_F8_P_3,
};
@@ -1800,9 +1802,6 @@ struct dis386 {
"XV" => print "{vex} " pseudo prefix
"XE" => print "{evex} " pseudo prefix if no EVEX-specific functionality is
is used by an EVEX-encoded (AVX512VL) instruction.
- "ME" => print "{evex} " pseudo prefix for ins->modrm.mod != 3,if no
- EVEX-specific functionality is used by an EVEX-encoded (AVX512VL)
- instruction.
"NF" => print "{nf} " pseudo prefix when EVEX.NF = 1 and print "{evex} "
pseudo prefix when instructions without NF, EGPR and VVVV,
"NE" => don't print "{evex} " pseudo prefix for some special instructions
@@ -10527,11 +10526,6 @@ putop (instr_info *ins, const char *in_template, int sizeflag)
/* Skip printing {evex} for some special instructions in MAP4. */
evex_printed = true;
break;
- case 'M':
- if (ins->modrm.mod != 3 && !(ins->rex2 & 7))
- oappend (ins, "{evex} ");
- evex_printed = true;
- break;
default:
abort ();
}
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