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x86: extend %BW use to VP{COMPRESS,EXPAND}{B,W}

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Unlike the earlier ones these also need their operands adjusted. Replace
the (mis-described: there's nothing "scalar" here) {b,w}_scalar_mode by
a single new mode, with the actual unit width controlled by EVEX.W.
This commit is contained in:
Jan Beulich
2020-07-14 10:29:25 +02:00
parent b24d668c07
commit 4726e9a479
4 changed files with 22 additions and 24 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
opcodes/ChangeLog
View File

@ -1,3 +1,16 @@
2020-07-14 Jan Beulich <jbeulich@suse.com>
* i386-dis.c (EVEX_W_0F3862_P_2, EVEX_W_0F3863_P_2): Delete.
(EXbScalar, EXwScalar): Fold to ...
(EXbwUnit): ... this.
(b_scalar_mode, w_scalar_mode): Fold to ...
(bw_unit_mode): ... this.
(intel_operand_size, OP_E_memory): Replace b_scalar_mode /
w_scalar_mode handling by bw_unit_mode one.
* i386-dis-evex-w.h: Move entries for opcodes 0F3862 and 0F3863
...
* i386-dis-evex-prefix.h: ... here.
2020-07-14 Jan Beulich <jbeulich@suse.com>
* i386-dis.c (PCMPESTR_Fixup): Delete.

4
opcodes/i386-dis-evex-prefix.h
View File

@ -723,13 +723,13 @@
{
{ Bad_Opcode },
{ Bad_Opcode },
{ VEX_W_TABLE (EVEX_W_0F3862_P_2) },
{ "vpexpand%BW", { XM, EXbwUnit }, 0 },
},
/* PREFIX_EVEX_0F3863 */
{
{ Bad_Opcode },
{ Bad_Opcode },
{ VEX_W_TABLE (EVEX_W_0F3863_P_2) },
{ "vpcompress%BW", { EXbwUnit, XM }, 0 },
},
/* PREFIX_EVEX_0F3864 */
{

10
opcodes/i386-dis-evex-w.h
View File

@ -522,16 +522,6 @@
{ MOD_TABLE (MOD_EVEX_0F385B_P_2_W_0) },
{ MOD_TABLE (MOD_EVEX_0F385B_P_2_W_1) },
},
/* EVEX_W_0F3862_P_2 */
{
{ "vpexpandb", { XM, EXbScalar }, 0 },
{ "vpexpandw", { XM, EXwScalar }, 0 },
},
/* EVEX_W_0F3863_P_2 */
{
{ "vpcompressb", { EXbScalar, XM }, 0 },
{ "vpcompressw", { EXwScalar, XM }, 0 },
},
/* EVEX_W_0F3870_P_2 */
{
{ Bad_Opcode },

19
opcodes/i386-dis.c
View File

@ -358,9 +358,8 @@ fetch_data (struct disassemble_info *info, bfd_byte *addr)
#define EMS { OP_EM, v_swap_mode }
#define EMd { OP_EM, d_mode }
#define EMx { OP_EM, x_mode }
#define EXbScalar { OP_EX, b_scalar_mode }
#define EXbwUnit { OP_EX, bw_unit_mode }
#define EXw { OP_EX, w_mode }
#define EXwScalar { OP_EX, w_scalar_mode }
#define EXd { OP_EX, d_mode }
#define EXdS { OP_EX, d_swap_mode }
#define EXq { OP_EX, q_mode }
@ -488,6 +487,8 @@ enum
x_mode,
/* Similar to x_mode, but with different EVEX mem shifts. */
evex_x_gscat_mode,
/* Similar to x_mode, but with yet different EVEX mem shifts. */
bw_unit_mode,
/* Similar to x_mode, but with disabled broadcast. */
evex_x_nobcst_mode,
/* Similar to x_mode, but with operands swapped and disabled broadcast
@ -579,10 +580,6 @@ enum
/* scalar, ignore vector length. */
scalar_mode,
/* like b_mode, ignore vector length. */
b_scalar_mode,
/* like w_mode, ignore vector length. */
w_scalar_mode,
/* like d_swap_mode, ignore vector length. */
d_scalar_swap_mode,
/* like q_swap_mode, ignore vector length. */
@ -2183,8 +2180,6 @@ enum
EVEX_W_0F3859_P_2,
EVEX_W_0F385A_P_2,
EVEX_W_0F385B_P_2,
EVEX_W_0F3862_P_2,
EVEX_W_0F3863_P_2,
EVEX_W_0F3870_P_2,
EVEX_W_0F3872_P_1,
EVEX_W_0F3872_P_2,
@ -14109,8 +14104,7 @@ intel_operand_size (int bytemode, int sizeflag)
case x_swap_mode:
case evex_x_gscat_mode:
case evex_x_nobcst_mode:
case b_scalar_mode:
case w_scalar_mode:
case bw_unit_mode:
if (need_vex)
{
switch (vex.length)
@ -14592,11 +14586,12 @@ OP_E_memory (int bytemode, int sizeflag)
case d_scalar_swap_mode:
shift = 2;
break;
case w_scalar_mode:
case bw_unit_mode:
shift = vex.w ? 1 : 0;
break;
case xmm_mw_mode:
shift = 1;
break;
case b_scalar_mode:
case xmm_mb_mode:
shift = 0;
break;