diff options
| author | Richard Henderson <richard.henderson@linaro.org> | 2020-11-20 18:28:31 -0800 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2021-06-03 14:04:02 -0700 |
| commit | d6e1f0cd59a59a27a2b109600653e57917cc9594 (patch) | |
| tree | 3cb4ea079caa5333714b39206b0893fb370c6d2b /fpu/softfloat-parts.c.inc | |
| parent | 25fdedf0d33e01ad4c950b7e4d58da498649aa29 (diff) | |
| download | qemu-d6e1f0cd59a59a27a2b109600653e57917cc9594.zip | |
softfloat: Reduce FloatFmt
Remove frac_lsb, frac_lsbm1, roundeven_mask. Compute
these from round_mask in parts$N_uncanon_normal.
With floatx80, round_mask will not be tied to frac_shift.
Everything else is easily computable.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'fpu/softfloat-parts.c.inc')
| -rw-r--r-- | fpu/softfloat-parts.c.inc | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/fpu/softfloat-parts.c.inc b/fpu/softfloat-parts.c.inc index e05909db8c..a026581c33 100644 --- a/fpu/softfloat-parts.c.inc +++ b/fpu/softfloat-parts.c.inc @@ -145,10 +145,10 @@ static void partsN(uncanon_normal)(FloatPartsN *p, float_status *s, { const int exp_max = fmt->exp_max; const int frac_shift = fmt->frac_shift; - const uint64_t frac_lsb = fmt->frac_lsb; - const uint64_t frac_lsbm1 = fmt->frac_lsbm1; const uint64_t round_mask = fmt->round_mask; - const uint64_t roundeven_mask = fmt->roundeven_mask; + const uint64_t frac_lsb = round_mask + 1; + const uint64_t frac_lsbm1 = round_mask ^ (round_mask >> 1); + const uint64_t roundeven_mask = round_mask | frac_lsb; uint64_t inc; bool overflow_norm = false; int exp, flags = 0; |