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target/arm: Convert XPAC[ID] to decodetree

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Remove disas_data_proc_1src, as these were the last insns
decoded by that function.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20241211163036.2297116-11-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Richard Henderson 2024-12-11 10:29:37 -06:00 • committed by Peter Maydell
parent 6934d6c35c
commit 44e12416e8
2 changed files with 16 additions and 86 deletions
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3
target/arm/tcg/a64.decode
View file

@ -712,6 +712,9 @@ AUTIB 1 10 11010110 00001 00.101 ..... ..... @pacaut
AUTDA 1 10 11010110 00001 00.110 ..... ..... @pacaut
AUTDB 1 10 11010110 00001 00.111 ..... ..... @pacaut
XPACI 1 10 11010110 00001 010000 11111 rd:5
XPACD 1 10 11010110 00001 010001 11111 rd:5
# Logical (shifted reg)
# Add/subtract (shifted reg)
# Add/subtract (extended reg)

99
target/arm/tcg/translate-a64.c
View file

@ -7793,6 +7793,18 @@ TRANS_FEAT(AUTIB, aa64_pauth, gen_pacaut, a, gen_helper_autib)
TRANS_FEAT(AUTDA, aa64_pauth, gen_pacaut, a, gen_helper_autda)
TRANS_FEAT(AUTDB, aa64_pauth, gen_pacaut, a, gen_helper_autdb)
static bool do_xpac(DisasContext *s, int rd, NeonGenOne64OpEnvFn *fn)
{
if (s->pauth_active) {
TCGv_i64 tcg_rd = cpu_reg(s, rd);
fn(tcg_rd, tcg_env, tcg_rd);
}
return true;
}
TRANS_FEAT(XPACI, aa64_pauth, do_xpac, a->rd, gen_helper_xpaci)
TRANS_FEAT(XPACD, aa64_pauth, do_xpac, a->rd, gen_helper_xpacd)
/* Logical (shifted register)
* 31 30 29 28 24 23 22 21 20 16 15 10 9 5 4 0
* +----+-----+-----------+-------+---+------+--------+------+------+
@ -8377,84 +8389,6 @@ static void disas_cond_select(DisasContext *s, uint32_t insn)
}
}
/* Data-processing (1 source)
* 31 30 29 28 21 20 16 15 10 9 5 4 0
* +----+---+---+-----------------+---------+--------+------+------+
* | sf | 1 | S | 1 1 0 1 0 1 1 0 | opcode2 | opcode | Rn | Rd |
* +----+---+---+-----------------+---------+--------+------+------+
*/
static void disas_data_proc_1src(DisasContext *s, uint32_t insn)
{
unsigned int sf, opcode, opcode2, rn, rd;
TCGv_i64 tcg_rd;
if (extract32(insn, 29, 1)) {
unallocated_encoding(s);
return;
}
sf = extract32(insn, 31, 1);
opcode = extract32(insn, 10, 6);
opcode2 = extract32(insn, 16, 5);
rn = extract32(insn, 5, 5);
rd = extract32(insn, 0, 5);
#define MAP(SF, O2, O1) ((SF) | (O1 << 1) | (O2 << 7))
switch (MAP(sf, opcode2, opcode)) {
case MAP(1, 0x01, 0x10): /* XPACI */
if (!dc_isar_feature(aa64_pauth, s) || rn != 31) {
goto do_unallocated;
} else if (s->pauth_active) {
tcg_rd = cpu_reg(s, rd);
gen_helper_xpaci(tcg_rd, tcg_env, tcg_rd);
}
break;
case MAP(1, 0x01, 0x11): /* XPACD */
if (!dc_isar_feature(aa64_pauth, s) || rn != 31) {
goto do_unallocated;
} else if (s->pauth_active) {
tcg_rd = cpu_reg(s, rd);
gen_helper_xpacd(tcg_rd, tcg_env, tcg_rd);
}
break;
default:
do_unallocated:
case MAP(0, 0x00, 0x00): /* RBIT */
case MAP(1, 0x00, 0x00):
case MAP(0, 0x00, 0x01): /* REV16 */
case MAP(1, 0x00, 0x01):
case MAP(0, 0x00, 0x02): /* REV/REV32 */
case MAP(1, 0x00, 0x02):
case MAP(1, 0x00, 0x03): /* REV64 */
case MAP(0, 0x00, 0x04): /* CLZ */
case MAP(1, 0x00, 0x04):
case MAP(0, 0x00, 0x05): /* CLS */
case MAP(1, 0x00, 0x05):
case MAP(1, 0x01, 0x00): /* PACIA */
case MAP(1, 0x01, 0x01): /* PACIB */
case MAP(1, 0x01, 0x02): /* PACDA */
case MAP(1, 0x01, 0x03): /* PACDB */
case MAP(1, 0x01, 0x04): /* AUTIA */
case MAP(1, 0x01, 0x05): /* AUTIB */
case MAP(1, 0x01, 0x06): /* AUTDA */
case MAP(1, 0x01, 0x07): /* AUTDB */
case MAP(1, 0x01, 0x08): /* PACIZA */
case MAP(1, 0x01, 0x09): /* PACIZB */
case MAP(1, 0x01, 0x0a): /* PACDZA */
case MAP(1, 0x01, 0x0b): /* PACDZB */
case MAP(1, 0x01, 0x0c): /* AUTIZA */
case MAP(1, 0x01, 0x0d): /* AUTIZB */
case MAP(1, 0x01, 0x0e): /* AUTDZA */
case MAP(1, 0x01, 0x0f): /* AUTDZB */
unallocated_encoding(s);
break;
}
#undef MAP
}
/*
* Data processing - register
* 31 30 29 28 25 21 20 16 10 0
@ -8464,7 +8398,6 @@ static void disas_data_proc_1src(DisasContext *s, uint32_t insn)
*/
static void disas_data_proc_reg(DisasContext *s, uint32_t insn)
{
int op0 = extract32(insn, 30, 1);
int op1 = extract32(insn, 28, 1);
int op2 = extract32(insn, 21, 4);
int op3 = extract32(insn, 10, 6);
@ -8517,19 +8450,13 @@ static void disas_data_proc_reg(DisasContext *s, uint32_t insn)
disas_cond_select(s, insn);
break;
case 0x6: /* Data-processing */
if (op0) { /* (1 source) */
disas_data_proc_1src(s, insn);
} else { /* (2 source) */
goto do_unallocated;
}
break;
case 0x8 ... 0xf: /* (3 source) */
disas_data_proc_3src(s, insn);
break;
default:
do_unallocated:
case 0x6: /* Data-processing */
unallocated_encoding(s);
break;
}