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| author |   H.J. Lu <hjl.tools@gmail.com> | 2018-09-17 09:33:20 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2018-09-17 09:33:35 -0700 |
| commit | 04e2a1829ea137ac23ac96e98fd60f9d720dcdcb (patch) | |
| tree | 6d9faae8d1067468634733e7b98c690cf8eae58d /opcodes/i386-dis.c | |
| parent | x86: Set Vex=1 on VEX.128 only vmovd and vmovq (diff) | |
| download | binutils-gdb-04e2a1829ea137ac23ac96e98fd60f9d720dcdcb.tar.gz binutils-gdb-04e2a1829ea137ac23ac96e98fd60f9d720dcdcb.tar.bz2 binutils-gdb-04e2a1829ea137ac23ac96e98fd60f9d720dcdcb.zip | |
x86: Set EVex=2 on EVEX.128 only vmovd and vmovq
EVEX "VMOVD xmm1, r32/m32", "VMOVD r32/m32, xmm2", "VMOVQ xmm1, r64/m64",
"VMOVD r64/m64, xmm2", "VMOVQ xmm1, xmm2/m64" and "VMOVQ xmm1/m64, xmm2"
can only be encoded with EVEX.128. Set EVex=2 on EVEX.128 only vmovd and
vmovq.
gas/
PR gas/23670
* testsuite/gas/i386/evex-lig-2.d: New file.
* testsuite/gas/i386/evex-lig-2.s: Likewise.
* testsuite/gas/i386/x86-64-evex-lig-2.d: Likewise.
* testsuite/gas/i386/x86-64-evex-lig-2.s: Likewise.
* testsuite/gas/i386/i386.exp: Run evex-lig-2 and
x86-64-evex-lig-2.
opcodes/
PR gas/23670
* i386-dis-evex.h (evex_table): Use EVEX_LEN_0F6E_P_2,
EVEX_LEN_0F7E_P_1, EVEX_LEN_0F7E_P_2 and EVEX_LEN_0FD6_P_2.
(EVEX_LEN_0F6E_P_2): New EVEX_LEN_TABLE entry.
(EVEX_LEN_0F7E_P_1): Likewise.
(EVEX_LEN_0F7E_P_2): Likewise.
(EVEX_LEN_0FD6_P_2): Likewise.
* i386-dis.c (USE_EVEX_LEN_TABLE): New.
(EVEX_LEN_TABLE): Likewise.
(EVEX_LEN_0F6E_P_2): New enum.
(EVEX_LEN_0F7E_P_1): Likewise.
(EVEX_LEN_0F7E_P_2): Likewise.
(EVEX_LEN_0FD6_P_2): Likewise.
(evex_len_table): New.
(get_valid_dis386): Handle USE_EVEX_LEN_TABLE.
* i386-opc.tbl: Set EVex=2 on EVEX.128 only vmovd and vmovq.
* i386-tbl.h: Regenerated.
Diffstat (limited to 'opcodes/i386-dis.c')
| -rw-r--r-- | opcodes/i386-dis.c | 41 |
1 files changed, 40 insertions, 1 deletions
diff --git a/opcodes/i386-dis.c b/opcodes/i386-dis.c index 89b824c85ca..bc4db68a311 100644 --- a/opcodes/i386-dis.c +++ b/opcodes/i386-dis.c @@ -703,7 +703,8 @@ enum USE_VEX_C5_TABLE, USE_VEX_LEN_TABLE, USE_VEX_W_TABLE, - USE_EVEX_TABLE + USE_EVEX_TABLE, + USE_EVEX_LEN_TABLE }; #define FLOAT NULL, { { NULL, FLOATCODE } }, 0 @@ -723,6 +724,7 @@ enum #define VEX_LEN_TABLE(I) DIS386 (USE_VEX_LEN_TABLE, (I)) #define VEX_W_TABLE(I) DIS386 (USE_VEX_W_TABLE, (I)) #define EVEX_TABLE(I) DIS386 (USE_EVEX_TABLE, (I)) +#define EVEX_LEN_TABLE(I) DIS386 (USE_EVEX_LEN_TABLE, (I)) enum { @@ -1931,6 +1933,14 @@ enum enum { + EVEX_LEN_0F6E_P_2 = 0, + EVEX_LEN_0F7E_P_1, + EVEX_LEN_0F7E_P_2, + EVEX_LEN_0FD6_P_2 +}; + +enum +{ VEX_W_0F41_P_0_LEN_1 = 0, VEX_W_0F41_P_2_LEN_1, VEX_W_0F42_P_0_LEN_1, @@ -9882,6 +9892,12 @@ static const struct dis386 vex_len_table[][2] = { }, }; +static const struct dis386 evex_len_table[][3] = { +#define NEED_EVEX_LEN_TABLE +#include "i386-dis-evex.h" +#undef NEED_EVEX_LEN_TABLE +}; + static const struct dis386 vex_w_table[][2] = { { /* VEX_W_0F41_P_0_LEN_1 */ @@ -11542,6 +11558,29 @@ get_valid_dis386 (const struct dis386 *dp, disassemble_info *info) dp = &vex_len_table[dp->op[1].bytemode][vindex]; break; + case USE_EVEX_LEN_TABLE: + if (!vex.evex) + abort (); + + switch (vex.length) + { + case 128: + vindex = 0; + break; + case 256: + vindex = 1; + break; + case 512: + vindex = 2; + break; + default: + abort (); + break; + } + + dp = &evex_len_table[dp->op[1].bytemode][vindex]; + break; + case USE_XOP_8F_TABLE: FETCH_DATA (info, codep + 3); /* All bits in the REX prefix are ignored. */ |