diff mbox series

[v5,39/94] target/sparc: Move UDIV, SDIV to decodetree

Message ID 20231022232932.80507-40-richard.henderson@linaro.org
State Superseded
Headers show
Series target/sparc: Convert to decodetree | expand

Commit Message

Richard Henderson Oct. 22, 2023, 11:28 p.m. UTC 
Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Acked-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 target/sparc/insns.decode |  2 ++
 target/sparc/helper.c     |  4 ---
 target/sparc/translate.c  | 54 ++++++++++++++++++---------------------
 3 files changed, 27 insertions(+), 33 deletions(-)
diff mbox series

Patch

diff --git a/target/sparc/insns.decode b/target/sparc/insns.decode
index dd0ed3a993..4415d03858 100644
--- a/target/sparc/insns.decode
+++ b/target/sparc/insns.decode
@@ -173,6 +173,8 @@  SMUL        10 ..... 0.1011 ..... . .............          @r_r_ri_cc
 
 UDIVX       10 ..... 001101 ..... . .............          @r_r_ri_cc0
 SDIVX       10 ..... 101101 ..... . .............          @r_r_ri_cc0
+UDIV        10 ..... 0.1110 ..... . .............          @r_r_ri_cc
+SDIV        10 ..... 0.1111 ..... . .............          @r_r_ri_cc
 
 Tcc_r       10 0 cond:4 111010 rs1:5 0 cc:1 0000000 rs2:5
 {
diff --git a/target/sparc/helper.c b/target/sparc/helper.c
index c4358bba84..e25fdaeedd 100644
--- a/target/sparc/helper.c
+++ b/target/sparc/helper.c
@@ -102,9 +102,7 @@  static target_ulong do_udiv(CPUSPARCState *env, target_ulong a,
     }
 
     if (cc) {
-        env->cc_dst = x0;
         env->cc_src2 = overflow;
-        env->cc_op = CC_OP_DIV;
     }
     return x0;
 }
@@ -143,9 +141,7 @@  static target_ulong do_sdiv(CPUSPARCState *env, target_ulong a,
     }
 
     if (cc) {
-        env->cc_dst = x0;
         env->cc_src2 = overflow;
-        env->cc_op = CC_OP_DIV;
     }
     return x0;
 }
diff --git a/target/sparc/translate.c b/target/sparc/translate.c
index da530ff0a3..e5430af973 100644
--- a/target/sparc/translate.c
+++ b/target/sparc/translate.c
@@ -710,6 +710,26 @@  static void gen_op_sdivx(TCGv dst, TCGv src1, TCGv src2)
     gen_helper_sdivx(dst, tcg_env, src1, src2);
 }
 
+static void gen_op_udiv(TCGv dst, TCGv src1, TCGv src2)
+{
+    gen_helper_udiv(dst, tcg_env, src1, src2);
+}
+
+static void gen_op_sdiv(TCGv dst, TCGv src1, TCGv src2)
+{
+    gen_helper_sdiv(dst, tcg_env, src1, src2);
+}
+
+static void gen_op_udivcc(TCGv dst, TCGv src1, TCGv src2)
+{
+    gen_helper_udiv_cc(dst, tcg_env, src1, src2);
+}
+
+static void gen_op_sdivcc(TCGv dst, TCGv src1, TCGv src2)
+{
+    gen_helper_sdiv_cc(dst, tcg_env, src1, src2);
+}
+
 // 1
 static void gen_op_eval_ba(TCGv dst)
 {
@@ -2919,6 +2939,7 @@  static void gen_faligndata(TCGv dst, TCGv gsr, TCGv s1, TCGv s2)
 #ifdef TARGET_SPARC64
 # define avail_32(C)      false
 # define avail_ASR17(C)   false
+# define avail_DIV(C)     true
 # define avail_MUL(C)     true
 # define avail_POWERDOWN(C) false
 # define avail_64(C)      true
@@ -2927,6 +2948,7 @@  static void gen_faligndata(TCGv dst, TCGv gsr, TCGv s1, TCGv s2)
 #else
 # define avail_32(C)      true
 # define avail_ASR17(C)   ((C)->def->features & CPU_FEATURE_ASR17)
+# define avail_DIV(C)     ((C)->def->features & CPU_FEATURE_DIV)
 # define avail_MUL(C)     ((C)->def->features & CPU_FEATURE_MUL)
 # define avail_POWERDOWN(C) ((C)->def->features & CPU_FEATURE_POWERDOWN)
 # define avail_64(C)      false
@@ -4129,6 +4151,8 @@  TRANS(UMUL, MUL, do_logic, a, gen_op_umul, NULL)
 TRANS(SMUL, MUL, do_logic, a, gen_op_smul, NULL)
 TRANS(UDIVX, 64, do_arith, a, -1, gen_op_udivx, NULL, NULL)
 TRANS(SDIVX, 64, do_arith, a, -1, gen_op_sdivx, NULL, NULL)
+TRANS(UDIV, DIV, do_arith, a, CC_OP_DIV, gen_op_udiv, NULL, gen_op_udivcc)
+TRANS(SDIV, DIV, do_arith, a, CC_OP_DIV, gen_op_sdiv, NULL, gen_op_sdivcc)
 
 static bool trans_OR(DisasContext *dc, arg_r_r_ri_cc *a)
 {
@@ -4621,35 +4645,7 @@  static void disas_sparc_legacy(DisasContext *dc, unsigned int insn)
 #endif
             } else if (xop < 0x36) {
                 if (xop < 0x20) {
-                    cpu_src1 = get_src1(dc, insn);
-                    cpu_src2 = get_src2(dc, insn);
-                    switch (xop & ~0x10) {
-                    case 0xe: /* udiv */
-                        CHECK_IU_FEATURE(dc, DIV);
-                        if (xop & 0x10) {
-                            gen_helper_udiv_cc(cpu_dst, tcg_env, cpu_src1,
-                                               cpu_src2);
-                            dc->cc_op = CC_OP_DIV;
-                        } else {
-                            gen_helper_udiv(cpu_dst, tcg_env, cpu_src1,
-                                            cpu_src2);
-                        }
-                        break;
-                    case 0xf: /* sdiv */
-                        CHECK_IU_FEATURE(dc, DIV);
-                        if (xop & 0x10) {
-                            gen_helper_sdiv_cc(cpu_dst, tcg_env, cpu_src1,
-                                               cpu_src2);
-                            dc->cc_op = CC_OP_DIV;
-                        } else {
-                            gen_helper_sdiv(cpu_dst, tcg_env, cpu_src1,
-                                            cpu_src2);
-                        }
-                        break;
-                    default:
-                        goto illegal_insn;
-                    }
-                    gen_store_gpr(dc, rd, cpu_dst);
+                    goto illegal_insn;
                 } else {
                     cpu_src1 = get_src1(dc, insn);
                     cpu_src2 = get_src2(dc, insn);