diff options
Diffstat (limited to 'fpu')
| -rw-r--r-- | fpu/softfloat.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/fpu/softfloat.c b/fpu/softfloat.c index 5026f518b0..1cb162882b 100644 --- a/fpu/softfloat.c +++ b/fpu/softfloat.c @@ -3559,6 +3559,13 @@ float32 int64_to_float32_scalbn(int64_t a, int scale, float_status *status) { FloatParts64 p; + /* Without scaling, there are no overflow concerns. */ + if (likely(scale == 0) && can_use_fpu(status)) { + union_float32 ur; + ur.h = a; + return ur.s; + } + parts64_sint_to_float(&p, a, scale, status); return float32_round_pack_canonical(&p, status); } @@ -3592,6 +3599,13 @@ float64 int64_to_float64_scalbn(int64_t a, int scale, float_status *status) { FloatParts64 p; + /* Without scaling, there are no overflow concerns. */ + if (likely(scale == 0) && can_use_fpu(status)) { + union_float64 ur; + ur.h = a; + return ur.s; + } + parts_sint_to_float(&p, a, scale, status); return float64_round_pack_canonical(&p, status); } @@ -3726,6 +3740,13 @@ float32 uint64_to_float32_scalbn(uint64_t a, int scale, float_status *status) { FloatParts64 p; + /* Without scaling, there are no overflow concerns. */ + if (likely(scale == 0) && can_use_fpu(status)) { + union_float32 ur; + ur.h = a; + return ur.s; + } + parts_uint_to_float(&p, a, scale, status); return float32_round_pack_canonical(&p, status); } @@ -3759,6 +3780,13 @@ float64 uint64_to_float64_scalbn(uint64_t a, int scale, float_status *status) { FloatParts64 p; + /* Without scaling, there are no overflow concerns. */ + if (likely(scale == 0) && can_use_fpu(status)) { + union_float64 ur; + ur.h = a; + return ur.s; + } + parts_uint_to_float(&p, a, scale, status); return float64_round_pack_canonical(&p, status); } |