[Qemu-arm] [PATCH v3 16/27] target/arm/vfp_helper: Extract vfp_set_fpscr_from_host()

[Philippe Mathieu-Daudé]

The vfp_set_fpscr() helper contains code specific to the host
floating point implementation (here the SoftFloat library).
Extract this code to vfp_set_fpscr_from_host().

Signed-off-by: Philippe Mathieu-Daudé <address@hidden>
---
 target/arm/vfp_helper.c | 19 +++++++++++++------
 1 file changed, 13 insertions(+), 6 deletions(-)

diff --git a/target/arm/vfp_helper.c b/target/arm/vfp_helper.c
index b19a395b67..838f7d25fd 100644
--- a/target/arm/vfp_helper.c
+++ b/target/arm/vfp_helper.c
@@ -81,6 +81,18 @@ static inline int vfp_exceptbits_to_host(int target_bits)
     return host_bits;
 }
 
+static uint32_t vfp_get_fpscr_from_host(CPUARMState *env)
+{
+    uint32_t i;
+
+    i = get_float_exception_flags(&env->vfp.fp_status);
+    i |= get_float_exception_flags(&env->vfp.standard_fp_status);
+    /* FZ16 does not generate an input denormal exception.  */
+    i |= (get_float_exception_flags(&env->vfp.fp_status_f16)
+          & ~float_flag_input_denormal);
+    return vfp_exceptbits_from_host(i);
+}
+
 static void vfp_set_fpscr_to_host(CPUARMState *env, uint32_t val)
 {
     int i;
@@ -141,12 +153,7 @@ uint32_t HELPER(vfp_get_fpscr)(CPUARMState *env)
             | (env->vfp.vec_len << 16)
             | (env->vfp.vec_stride << 20);
 
-    i = get_float_exception_flags(&env->vfp.fp_status);
-    i |= get_float_exception_flags(&env->vfp.standard_fp_status);
-    /* FZ16 does not generate an input denormal exception.  */
-    i |= (get_float_exception_flags(&env->vfp.fp_status_f16)
-          & ~float_flag_input_denormal);
-    fpscr |= vfp_exceptbits_from_host(i);
+    fpscr |= vfp_get_fpscr_from_host(env);
 
     i = env->vfp.qc[0] | env->vfp.qc[1] | env->vfp.qc[2] | env->vfp.qc[3];
     fpscr |= i ? FPCR_QC : 0;
-- 
2.20.1