target-tricore: Use clz opcode

Tested-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: Richard Henderson <rth@twiddle.net>

diff --git a/target/tricore/helper.h b/target/tricore/helper.h
index 9333e161abfaff23357284e003d9734e9a4d01e6..2cf04e1b1165ac01d6455f7d0373d946d155311b 100644 (file)
--- a/target/tricore/helper.h
+++ b/target/tricore/helper.h
@@ -87,9 +87,7 @@ DEF_HELPER_FLAGS_2(min_hu, TCG_CALL_NO_RWG_SE, i32, i32, i32)
 DEF_HELPER_FLAGS_2(ixmin, TCG_CALL_NO_RWG_SE, i64, i64, i32)
 DEF_HELPER_FLAGS_2(ixmin_u, TCG_CALL_NO_RWG_SE, i64, i64, i32)
 /* count leading ... */
-DEF_HELPER_FLAGS_1(clo, TCG_CALL_NO_RWG_SE, i32, i32)
 DEF_HELPER_FLAGS_1(clo_h, TCG_CALL_NO_RWG_SE, i32, i32)
-DEF_HELPER_FLAGS_1(clz, TCG_CALL_NO_RWG_SE, i32, i32)
 DEF_HELPER_FLAGS_1(clz_h, TCG_CALL_NO_RWG_SE, i32, i32)
 DEF_HELPER_FLAGS_1(cls, TCG_CALL_NO_RWG_SE, i32, i32)
 DEF_HELPER_FLAGS_1(cls_h, TCG_CALL_NO_RWG_SE, i32, i32)

diff --git a/target/tricore/op_helper.c b/target/tricore/op_helper.c
index ac02e0a36b576fd191bdef853f92bda5324e9420..3731d5e6f164c2e9423ca6f96ff80e4d3940139a 100644 (file)
--- a/target/tricore/op_helper.c
+++ b/target/tricore/op_helper.c
@@ -1733,11 +1733,6 @@ EXTREMA_H_B(min, <)
 
 #undef EXTREMA_H_B
 
-uint32_t helper_clo(target_ulong r1)
-{
-    return clo32(r1);
-}
-
 uint32_t helper_clo_h(target_ulong r1)
 {
     uint32_t ret_hw0 = extract32(r1, 0, 16);
@@ -1756,11 +1751,6 @@ uint32_t helper_clo_h(target_ulong r1)
     return ret_hw0 | (ret_hw1 << 16);
 }
 
-uint32_t helper_clz(target_ulong r1)
-{
-    return clz32(r1);
-}
-
 uint32_t helper_clz_h(target_ulong r1)
 {
     uint32_t ret_hw0 = extract32(r1, 0, 16);

diff --git a/target/tricore/translate.c b/target/tricore/translate.c
index 36f734a662f4123ac44d2f911fdb1c72e8ec6643..69cdfb91778802c21d821474c08e6c084bf36ca1 100644 (file)
--- a/target/tricore/translate.c
+++ b/target/tricore/translate.c
@@ -6367,7 +6367,8 @@ static void decode_rr_logical_shift(CPUTriCoreState *env, DisasContext *ctx)
         tcg_gen_andc_tl(cpu_gpr_d[r3], cpu_gpr_d[r1], cpu_gpr_d[r2]);
         break;
     case OPC2_32_RR_CLO:
-        gen_helper_clo(cpu_gpr_d[r3], cpu_gpr_d[r1]);
+        tcg_gen_not_tl(cpu_gpr_d[r3], cpu_gpr_d[r1]);
+        tcg_gen_clzi_tl(cpu_gpr_d[r3], cpu_gpr_d[r3], TARGET_LONG_BITS);
         break;
     case OPC2_32_RR_CLO_H:
         gen_helper_clo_h(cpu_gpr_d[r3], cpu_gpr_d[r1]);
@@ -6379,7 +6380,7 @@ static void decode_rr_logical_shift(CPUTriCoreState *env, DisasContext *ctx)
         gen_helper_cls_h(cpu_gpr_d[r3], cpu_gpr_d[r1]);
         break;
     case OPC2_32_RR_CLZ:
-        gen_helper_clz(cpu_gpr_d[r3], cpu_gpr_d[r1]);
+        tcg_gen_clzi_tl(cpu_gpr_d[r3], cpu_gpr_d[r1], TARGET_LONG_BITS);
         break;
     case OPC2_32_RR_CLZ_H:
         gen_helper_clz_h(cpu_gpr_d[r3], cpu_gpr_d[r1]);