diff options
| author | Richard Henderson <rth@twiddle.net> | 2016-11-16 11:49:06 +0100 |
|---|---|---|
| committer | Richard Henderson <rth@twiddle.net> | 2017-01-10 08:06:11 -0800 |
| commit | 7539a012f614b724426ac9360238f3281d928a3f (patch) | |
| tree | fac1156451c03c015d19afe831dbba638f90acd8 /target/arm/translate-a64.c | |
| parent | b79ea941d6be8b64bdfa53bd4a1c09e72fd505a8 (diff) | |
| download | qemu-7539a012f614b724426ac9360238f3281d928a3f.tar.gz | |
target-arm: Use clz opcode
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Diffstat (limited to 'target/arm/translate-a64.c')
| -rw-r--r-- | target/arm/translate-a64.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c index a59c90c9ad..1bf94bc6f6 100644 --- a/target/arm/translate-a64.c +++ b/target/arm/translate-a64.c @@ -3954,11 +3954,11 @@ static void handle_clz(DisasContext *s, unsigned int sf, tcg_rn = cpu_reg(s, rn); if (sf) { - gen_helper_clz64(tcg_rd, tcg_rn); + tcg_gen_clzi_i64(tcg_rd, tcg_rn, 64); } else { TCGv_i32 tcg_tmp32 = tcg_temp_new_i32(); tcg_gen_extrl_i64_i32(tcg_tmp32, tcg_rn); - gen_helper_clz(tcg_tmp32, tcg_tmp32); + tcg_gen_clzi_i32(tcg_tmp32, tcg_tmp32, 32); tcg_gen_extu_i32_i64(tcg_rd, tcg_tmp32); tcg_temp_free_i32(tcg_tmp32); } @@ -7591,7 +7591,7 @@ static void handle_2misc_64(DisasContext *s, int opcode, bool u, switch (opcode) { case 0x4: /* CLS, CLZ */ if (u) { - gen_helper_clz64(tcg_rd, tcg_rn); + tcg_gen_clzi_i64(tcg_rd, tcg_rn, 64); } else { gen_helper_cls64(tcg_rd, tcg_rn); } @@ -10261,7 +10261,7 @@ static void disas_simd_two_reg_misc(DisasContext *s, uint32_t insn) goto do_cmop; case 0x4: /* CLS */ if (u) { - gen_helper_clz32(tcg_res, tcg_op); + tcg_gen_clzi_i32(tcg_res, tcg_op, 32); } else { gen_helper_cls32(tcg_res, tcg_op); } |