[PULL 27/29] fpu: Return struct from parts{64,128}_scalbn

[Richard Henderson]

At the same time, export.

Reviewed-by: Philippe Mathieu-Daudé <phi...@linaro.org>
Signed-off-by: Richard Henderson <richard.hender...@linaro.org>
---
 include/fpu/softfloat-parts.h |  3 +++
 fpu/softfloat-parts.c.inc     | 14 ++++++++------
 2 files changed, 11 insertions(+), 6 deletions(-)

diff --git a/include/fpu/softfloat-parts.h b/include/fpu/softfloat-parts.h
index 9504d0daa0..46618d217e 100644
--- a/include/fpu/softfloat-parts.h
+++ b/include/fpu/softfloat-parts.h
@@ -214,4 +214,7 @@ FloatParts128 parts128_round_to_int(const FloatParts128 *a,
 FloatParts64 parts64_round_to_fmt(const FloatParts64 *p, float_status *s,
                                   const FloatFmt *fmt);
 
+FloatParts64 parts64_scalbn(const FloatParts64 *a, int n, float_status *s);
+FloatParts128 parts128_scalbn(const FloatParts128 *a, int n, float_status *s);
+
 #endif
diff --git a/fpu/softfloat-parts.c.inc b/fpu/softfloat-parts.c.inc
index 2114797aca..3a9c2748cd 100644
--- a/fpu/softfloat-parts.c.inc
+++ b/fpu/softfloat-parts.c.inc
@@ -1633,22 +1633,24 @@ FloatRelation partsN(compare)(const FloatPartsN *a, 
const FloatPartsN *b,
 /*
  * Multiply A by 2 raised to the power N.
  */
-static void partsN(scalbn)(FloatPartsN *a, int n, float_status *s)
+FloatPartsN partsN(scalbn)(const FloatPartsN *a, int n, float_status *s)
 {
     switch (a->cls) {
     case float_class_snan:
     case float_class_qnan:
-        *a = partsN(return_nan)(a, s);
-        break;
+        return partsN(return_nan)(a, s);
     case float_class_zero:
     case float_class_inf:
-        break;
+        return *a;
     case float_class_denormal:
         float_raise(float_flag_input_denormal_used, s);
         /* fall through */
     case float_class_normal:
-        a->exp += MIN(MAX(n, -0x10000), 0x10000);
-        break;
+        {
+            FloatPartsN r = *a;
+            r.exp += MIN(MAX(n, -0x10000), 0x10000);
+            return r;
+        }
     default:
         g_assert_not_reached();
     }
-- 
2.43.0