aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorRichard Henderson <richard.henderson@linaro.org>2018-05-10 18:10:58 +0100
committerPeter Maydell <peter.maydell@linaro.org>2018-05-10 18:10:58 +0100
commit9a9f1f59521f46e8ff4527d9a2b52f83577e2aa3 (patch)
tree1f61c19351af8a1bb1de183983fe97c9879285c8
parent88808a022c06f98d81cd3f2d105a5734c5614839 (diff)
downloadqemu-arm-9a9f1f59521f46e8ff4527d9a2b52f83577e2aa3.tar.gz
target/arm: Clear SVE high bits for FMOVpull-target-arm-20180510
Use write_fp_dreg and clear_vec_high to zero the bits that need zeroing for these cases. Cc: qemu-stable@nongnu.org Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20180502221552.3873-5-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
-rw-r--r--target/arm/translate-a64.c17
1 files changed, 5 insertions, 12 deletions
diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
index b302171545..b0471c842e 100644
--- a/target/arm/translate-a64.c
+++ b/target/arm/translate-a64.c
@@ -5681,31 +5681,24 @@ static void handle_fmov(DisasContext *s, int rd, int rn, int type, bool itof)
if (itof) {
TCGv_i64 tcg_rn = cpu_reg(s, rn);
+ TCGv_i64 tmp;
switch (type) {
case 0:
- {
/* 32 bit */
- TCGv_i64 tmp = tcg_temp_new_i64();
+ tmp = tcg_temp_new_i64();
tcg_gen_ext32u_i64(tmp, tcg_rn);
- tcg_gen_st_i64(tmp, cpu_env, fp_reg_offset(s, rd, MO_64));
- tcg_gen_movi_i64(tmp, 0);
- tcg_gen_st_i64(tmp, cpu_env, fp_reg_hi_offset(s, rd));
+ write_fp_dreg(s, rd, tmp);
tcg_temp_free_i64(tmp);
break;
- }
case 1:
- {
/* 64 bit */
- TCGv_i64 tmp = tcg_const_i64(0);
- tcg_gen_st_i64(tcg_rn, cpu_env, fp_reg_offset(s, rd, MO_64));
- tcg_gen_st_i64(tmp, cpu_env, fp_reg_hi_offset(s, rd));
- tcg_temp_free_i64(tmp);
+ write_fp_dreg(s, rd, tcg_rn);
break;
- }
case 2:
/* 64 bit to top half. */
tcg_gen_st_i64(tcg_rn, cpu_env, fp_reg_hi_offset(s, rd));
+ clear_vec_high(s, true, rd);
break;
}
} else {