[PULL 09/85] target/arm: Convert PAC[ID]*, AUT[ID]* to decodetree

[Peter Maydell]

From: Richard Henderson <richard.henderson@linaro.org>

This includes PACIA, PACIZA, PACIB, PACIZB, PACDA, PACDZA, PACDB,
PACDZB, AUTIA, AUTIZA, AUTIB, AUTIZB, AUTDA, AUTDZA, AUTDB, AUTDZB.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20241211163036.2297116-10-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 target/arm/tcg/a64.decode      |  13 +++
 target/arm/tcg/translate-a64.c | 173 +++++++++------------------------
 2 files changed, 58 insertions(+), 128 deletions(-)

diff --git a/target/arm/tcg/a64.decode b/target/arm/tcg/a64.decode
index 410eaa9333a..9083ac4ac30 100644
--- a/target/arm/tcg/a64.decode
+++ b/target/arm/tcg/a64.decode
@@ -699,6 +699,19 @@ REV64           1 10 11010110 00000 000011 ..... .....  @rr
 CLZ             . 10 11010110 00000 000100 ..... .....  @rr_sf
 CLS             . 10 11010110 00000 000101 ..... .....  @rr_sf
 
+&pacaut         rd rn z
+@pacaut         . .. ........ ..... .. z:1 ... rn:5 rd:5  &pacaut
+
+PACIA           1 10 11010110 00001 00.000 ..... .....  @pacaut
+PACIB           1 10 11010110 00001 00.001 ..... .....  @pacaut
+PACDA           1 10 11010110 00001 00.010 ..... .....  @pacaut
+PACDB           1 10 11010110 00001 00.011 ..... .....  @pacaut
+
+AUTIA           1 10 11010110 00001 00.100 ..... .....  @pacaut
+AUTIB           1 10 11010110 00001 00.101 ..... .....  @pacaut
+AUTDA           1 10 11010110 00001 00.110 ..... .....  @pacaut
+AUTDB           1 10 11010110 00001 00.111 ..... .....  @pacaut
+
 # Logical (shifted reg)
 # Add/subtract (shifted reg)
 # Add/subtract (extended reg)
diff --git a/target/arm/tcg/translate-a64.c b/target/arm/tcg/translate-a64.c
index 552b45b4e25..852545dfcc2 100644
--- a/target/arm/tcg/translate-a64.c
+++ b/target/arm/tcg/translate-a64.c
@@ -7764,6 +7764,35 @@ static void gen_cls32(TCGv_i64 tcg_rd, TCGv_i64 tcg_rn)
 TRANS(CLZ, gen_rr, a->rd, a->rn, a->sf ? gen_clz64 : gen_clz32)
 TRANS(CLS, gen_rr, a->rd, a->rn, a->sf ? tcg_gen_clrsb_i64 : gen_cls32)
 
+static bool gen_pacaut(DisasContext *s, arg_pacaut *a, NeonGenTwo64OpEnvFn fn)
+{
+    TCGv_i64 tcg_rd, tcg_rn;
+
+    if (a->z) {
+        if (a->rn != 31) {
+            return false;
+        }
+        tcg_rn = tcg_constant_i64(0);
+    } else {
+        tcg_rn = cpu_reg_sp(s, a->rn);
+    }
+    if (s->pauth_active) {
+        tcg_rd = cpu_reg(s, a->rd);
+        fn(tcg_rd, tcg_env, tcg_rd, tcg_rn);
+    }
+    return true;
+}
+
+TRANS_FEAT(PACIA, aa64_pauth, gen_pacaut, a, gen_helper_pacia)
+TRANS_FEAT(PACIB, aa64_pauth, gen_pacaut, a, gen_helper_pacib)
+TRANS_FEAT(PACDA, aa64_pauth, gen_pacaut, a, gen_helper_pacda)
+TRANS_FEAT(PACDB, aa64_pauth, gen_pacaut, a, gen_helper_pacdb)
+
+TRANS_FEAT(AUTIA, aa64_pauth, gen_pacaut, a, gen_helper_autia)
+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)
+
 /* Logical (shifted register)
  *   31  30 29 28       24 23   22 21  20  16 15    10 9    5 4    0
  * +----+-----+-----------+-------+---+------+--------+------+------+
@@ -8373,134 +8402,6 @@ static void disas_data_proc_1src(DisasContext *s, 
uint32_t insn)
 #define MAP(SF, O2, O1) ((SF) | (O1 << 1) | (O2 << 7))
 
     switch (MAP(sf, opcode2, opcode)) {
-    case MAP(1, 0x01, 0x00): /* PACIA */
-        if (s->pauth_active) {
-            tcg_rd = cpu_reg(s, rd);
-            gen_helper_pacia(tcg_rd, tcg_env, tcg_rd, cpu_reg_sp(s, rn));
-        } else if (!dc_isar_feature(aa64_pauth, s)) {
-            goto do_unallocated;
-        }
-        break;
-    case MAP(1, 0x01, 0x01): /* PACIB */
-        if (s->pauth_active) {
-            tcg_rd = cpu_reg(s, rd);
-            gen_helper_pacib(tcg_rd, tcg_env, tcg_rd, cpu_reg_sp(s, rn));
-        } else if (!dc_isar_feature(aa64_pauth, s)) {
-            goto do_unallocated;
-        }
-        break;
-    case MAP(1, 0x01, 0x02): /* PACDA */
-        if (s->pauth_active) {
-            tcg_rd = cpu_reg(s, rd);
-            gen_helper_pacda(tcg_rd, tcg_env, tcg_rd, cpu_reg_sp(s, rn));
-        } else if (!dc_isar_feature(aa64_pauth, s)) {
-            goto do_unallocated;
-        }
-        break;
-    case MAP(1, 0x01, 0x03): /* PACDB */
-        if (s->pauth_active) {
-            tcg_rd = cpu_reg(s, rd);
-            gen_helper_pacdb(tcg_rd, tcg_env, tcg_rd, cpu_reg_sp(s, rn));
-        } else if (!dc_isar_feature(aa64_pauth, s)) {
-            goto do_unallocated;
-        }
-        break;
-    case MAP(1, 0x01, 0x04): /* AUTIA */
-        if (s->pauth_active) {
-            tcg_rd = cpu_reg(s, rd);
-            gen_helper_autia(tcg_rd, tcg_env, tcg_rd, cpu_reg_sp(s, rn));
-        } else if (!dc_isar_feature(aa64_pauth, s)) {
-            goto do_unallocated;
-        }
-        break;
-    case MAP(1, 0x01, 0x05): /* AUTIB */
-        if (s->pauth_active) {
-            tcg_rd = cpu_reg(s, rd);
-            gen_helper_autib(tcg_rd, tcg_env, tcg_rd, cpu_reg_sp(s, rn));
-        } else if (!dc_isar_feature(aa64_pauth, s)) {
-            goto do_unallocated;
-        }
-        break;
-    case MAP(1, 0x01, 0x06): /* AUTDA */
-        if (s->pauth_active) {
-            tcg_rd = cpu_reg(s, rd);
-            gen_helper_autda(tcg_rd, tcg_env, tcg_rd, cpu_reg_sp(s, rn));
-        } else if (!dc_isar_feature(aa64_pauth, s)) {
-            goto do_unallocated;
-        }
-        break;
-    case MAP(1, 0x01, 0x07): /* AUTDB */
-        if (s->pauth_active) {
-            tcg_rd = cpu_reg(s, rd);
-            gen_helper_autdb(tcg_rd, tcg_env, tcg_rd, cpu_reg_sp(s, rn));
-        } else if (!dc_isar_feature(aa64_pauth, s)) {
-            goto do_unallocated;
-        }
-        break;
-    case MAP(1, 0x01, 0x08): /* PACIZA */
-        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_pacia(tcg_rd, tcg_env, tcg_rd, tcg_constant_i64(0));
-        }
-        break;
-    case MAP(1, 0x01, 0x09): /* PACIZB */
-        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_pacib(tcg_rd, tcg_env, tcg_rd, tcg_constant_i64(0));
-        }
-        break;
-    case MAP(1, 0x01, 0x0a): /* PACDZA */
-        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_pacda(tcg_rd, tcg_env, tcg_rd, tcg_constant_i64(0));
-        }
-        break;
-    case MAP(1, 0x01, 0x0b): /* PACDZB */
-        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_pacdb(tcg_rd, tcg_env, tcg_rd, tcg_constant_i64(0));
-        }
-        break;
-    case MAP(1, 0x01, 0x0c): /* AUTIZA */
-        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_autia(tcg_rd, tcg_env, tcg_rd, tcg_constant_i64(0));
-        }
-        break;
-    case MAP(1, 0x01, 0x0d): /* AUTIZB */
-        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_autib(tcg_rd, tcg_env, tcg_rd, tcg_constant_i64(0));
-        }
-        break;
-    case MAP(1, 0x01, 0x0e): /* AUTDZA */
-        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_autda(tcg_rd, tcg_env, tcg_rd, tcg_constant_i64(0));
-        }
-        break;
-    case MAP(1, 0x01, 0x0f): /* AUTDZB */
-        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_autdb(tcg_rd, tcg_env, tcg_rd, tcg_constant_i64(0));
-        }
-        break;
     case MAP(1, 0x01, 0x10): /* XPACI */
         if (!dc_isar_feature(aa64_pauth, s) || rn != 31) {
             goto do_unallocated;
@@ -8530,6 +8431,22 @@ static void disas_data_proc_1src(DisasContext *s, 
uint32_t insn)
     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;
     }
-- 
2.34.1