target-alpha: Use the ctz and clz opcodes

Signed-off-by: Richard Henderson <rth@twiddle.net>

diff --git a/target/alpha/helper.h b/target/alpha/helper.h
index 004221df8c03a85783bd20db6378613ca10d5a7f..eed3906bd4a31eb427f17293234837ca00eabf44 100644 (file)
--- a/target/alpha/helper.h
+++ b/target/alpha/helper.h
@@ -4,8 +4,6 @@ DEF_HELPER_FLAGS_1(load_pcc, TCG_CALL_NO_RWG_SE, i64, env)
 DEF_HELPER_FLAGS_3(check_overflow, TCG_CALL_NO_WG, void, env, i64, i64)
 
 DEF_HELPER_FLAGS_1(ctpop, TCG_CALL_NO_RWG_SE, i64, i64)
-DEF_HELPER_FLAGS_1(ctlz, TCG_CALL_NO_RWG_SE, i64, i64)
-DEF_HELPER_FLAGS_1(cttz, TCG_CALL_NO_RWG_SE, i64, i64)
 
 DEF_HELPER_FLAGS_2(zap, TCG_CALL_NO_RWG_SE, i64, i64, i64)
 DEF_HELPER_FLAGS_2(zapnot, TCG_CALL_NO_RWG_SE, i64, i64, i64)

diff --git a/target/alpha/int_helper.c b/target/alpha/int_helper.c
index 19bebfe7424e2b5b82184b92d4e069dd27eb9fe5..3c303bd1dbfd66bb9121d74d06df7000b2786064 100644 (file)
--- a/target/alpha/int_helper.c
+++ b/target/alpha/int_helper.c
@@ -29,16 +29,6 @@ uint64_t helper_ctpop(uint64_t arg)
     return ctpop64(arg);
 }
 
-uint64_t helper_ctlz(uint64_t arg)
-{
-    return clz64(arg);
-}
-
-uint64_t helper_cttz(uint64_t arg)
-{
-    return ctz64(arg);
-}
-
 uint64_t helper_zapnot(uint64_t val, uint64_t mskb)
 {
     uint64_t mask;

diff --git a/target/alpha/translate.c b/target/alpha/translate.c
index 5ac227700a2eccee0f776c0fee2547500368cda2..6e2e5638a3934bc5341b8c0ce473e94bd916eb5a 100644 (file)
--- a/target/alpha/translate.c
+++ b/target/alpha/translate.c
@@ -2555,14 +2555,14 @@ static ExitStatus translate_one(DisasContext *ctx, uint32_t insn)
             REQUIRE_TB_FLAG(TB_FLAGS_AMASK_CIX);
             REQUIRE_REG_31(ra);
             REQUIRE_NO_LIT;
-            gen_helper_ctlz(vc, vb);
+            tcg_gen_clzi_i64(vc, vb, 64);
             break;
         case 0x33:
             /* CTTZ */
             REQUIRE_TB_FLAG(TB_FLAGS_AMASK_CIX);
             REQUIRE_REG_31(ra);
             REQUIRE_NO_LIT;
-            gen_helper_cttz(vc, vb);
+            tcg_gen_ctzi_i64(vc, vb, 64);
             break;
         case 0x34:
             /* UNPKBW */