[PATCH 4/4] target/arm: Use correct FPST for VCMLA, VCADD on fp16

[Peter Maydell]

When we implemented the VCMLA and VCADD insns we put in the
code to handle fp16, but left it using the standard fp status
flags. Correct them to use FPST_STD_F16 for fp16 operations.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 target/arm/translate-neon.inc.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/target/arm/translate-neon.inc.c b/target/arm/translate-neon.inc.c
index 5158dd14ad2..96e27e28009 100644
--- a/target/arm/translate-neon.inc.c
+++ b/target/arm/translate-neon.inc.c
@@ -181,7 +181,7 @@ static bool trans_VCMLA(DisasContext *s, arg_VCMLA *a)
     }
 
     opr_sz = (1 + a->q) * 8;
-    fpst = fpstatus_ptr(FPST_STD);
+    fpst = fpstatus_ptr(a->size == 0 ? FPST_STD_F16 : FPST_STD);
     fn_gvec_ptr = a->size ? gen_helper_gvec_fcmlas : gen_helper_gvec_fcmlah;
     tcg_gen_gvec_3_ptr(vfp_reg_offset(1, a->vd),
                        vfp_reg_offset(1, a->vn),
@@ -218,7 +218,7 @@ static bool trans_VCADD(DisasContext *s, arg_VCADD *a)
     }
 
     opr_sz = (1 + a->q) * 8;
-    fpst = fpstatus_ptr(FPST_STD);
+    fpst = fpstatus_ptr(a->size == 0 ? FPST_STD_F16 : FPST_STD);
     fn_gvec_ptr = a->size ? gen_helper_gvec_fcadds : gen_helper_gvec_fcaddh;
     tcg_gen_gvec_3_ptr(vfp_reg_offset(1, a->vd),
                        vfp_reg_offset(1, a->vn),
@@ -322,7 +322,7 @@ static bool trans_VCMLA_scalar(DisasContext *s, 
arg_VCMLA_scalar *a)
     fn_gvec_ptr = (a->size ? gen_helper_gvec_fcmlas_idx
                    : gen_helper_gvec_fcmlah_idx);
     opr_sz = (1 + a->q) * 8;
-    fpst = fpstatus_ptr(FPST_STD);
+    fpst = fpstatus_ptr(a->size == 0 ? FPST_STD_F16 : FPST_STD);
     tcg_gen_gvec_3_ptr(vfp_reg_offset(1, a->vd),
                        vfp_reg_offset(1, a->vn),
                        vfp_reg_offset(1, a->vm),
-- 
2.20.1