target/mips: Remove helpers accessing SAARI register

DisasContext::saar boolean is never set, so this code
is not reachable. Remove it.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240209090513.9401-9-philmd@linaro.org>

diff --git a/target/mips/tcg/sysemu/cp0_helper.c b/target/mips/tcg/sysemu/cp0_helper.c
index f8883a35155a42f6061e1dd39d301cb08993e700..ded6c78e9a3ddce45ad2b7b2d176687700c22ef8 100644 (file)
--- a/target/mips/tcg/sysemu/cp0_helper.c
+++ b/target/mips/tcg/sysemu/cp0_helper.c
@@ -1077,14 +1077,6 @@ void helper_mtc0_count(CPUMIPSState *env, target_ulong arg1)
     cpu_mips_store_count(env, arg1);
 }
 
-void helper_mtc0_saari(CPUMIPSState *env, target_ulong arg1)
-{
-    uint32_t target = arg1 & 0x3f;
-    if (target <= 1) {
-        env->CP0_SAARI = target;
-    }
-}
-
 void helper_mtc0_entryhi(CPUMIPSState *env, target_ulong arg1)
 {
     target_ulong old, val, mask;

diff --git a/target/mips/tcg/sysemu_helper.h.inc b/target/mips/tcg/sysemu_helper.h.inc
index 78f7272208a83c3d163d3ea8a3ed3de041f13c31..1861d538de126f08432030ecb10e508284f1cf5d 100644 (file)
--- a/target/mips/tcg/sysemu_helper.h.inc
+++ b/target/mips/tcg/sysemu_helper.h.inc
@@ -100,7 +100,6 @@ DEF_HELPER_2(mtc0_srsconf4, void, env, tl)
 DEF_HELPER_2(mtc0_hwrena, void, env, tl)
 DEF_HELPER_2(mtc0_pwctl, void, env, tl)
 DEF_HELPER_2(mtc0_count, void, env, tl)
-DEF_HELPER_2(mtc0_saari, void, env, tl)
 DEF_HELPER_2(mtc0_entryhi, void, env, tl)
 DEF_HELPER_2(mttc0_entryhi, void, env, tl)
 DEF_HELPER_2(mtc0_compare, void, env, tl)

diff --git a/target/mips/tcg/translate.c b/target/mips/tcg/translate.c
index 173b19a090943587254c7c9aa3030823175ec8bc..3ba2101647d1e5102dd9122230a46f9fc3207c79 100644 (file)
--- a/target/mips/tcg/translate.c
+++ b/target/mips/tcg/translate.c
@@ -5653,11 +5653,6 @@ static void gen_mfc0(DisasContext *ctx, TCGv arg, int reg, int sel)
             ctx->base.is_jmp = DISAS_EXIT;
             register_name = "Count";
             break;
-        case CP0_REG09__SAARI:
-            CP0_CHECK(ctx->saar);
-            gen_mfc0_load32(arg, offsetof(CPUMIPSState, CP0_SAARI));
-            register_name = "SAARI";
-            break;
         default:
             goto cp0_unimplemented;
         }
@@ -6374,11 +6369,6 @@ static void gen_mtc0(DisasContext *ctx, TCGv arg, int reg, int sel)
             gen_helper_mtc0_count(tcg_env, arg);
             register_name = "Count";
             break;
-        case CP0_REG09__SAARI:
-            CP0_CHECK(ctx->saar);
-            gen_helper_mtc0_saari(tcg_env, arg);
-            register_name = "SAARI";
-            break;
         default:
             goto cp0_unimplemented;
         }
@@ -7143,11 +7133,6 @@ static void gen_dmfc0(DisasContext *ctx, TCGv arg, int reg, int sel)
             ctx->base.is_jmp = DISAS_EXIT;
             register_name = "Count";
             break;
-        case CP0_REG09__SAARI:
-            CP0_CHECK(ctx->saar);
-            gen_mfc0_load32(arg, offsetof(CPUMIPSState, CP0_SAARI));
-            register_name = "SAARI";
-            break;
         default:
             goto cp0_unimplemented;
         }
@@ -7850,11 +7835,6 @@ static void gen_dmtc0(DisasContext *ctx, TCGv arg, int reg, int sel)
             gen_helper_mtc0_count(tcg_env, arg);
             register_name = "Count";
             break;
-        case CP0_REG09__SAARI:
-            CP0_CHECK(ctx->saar);
-            gen_helper_mtc0_saari(tcg_env, arg);
-            register_name = "SAARI";
-            break;
         default:
             goto cp0_unimplemented;
         }