| commit | 5dfbc9e4903c0121140f2945f05df48cea72dd82 | |
| author | Richard Henderson <richard.henderson@linaro.org> | |
| Wed, 3 Oct 2018 14:35:51 +0000 (3 09:35 -0500) | ||
| committer | Richard Henderson <richard.henderson@linaro.org> | |
| Fri, 5 Oct 2018 17:57:41 +0000 (5 12:57 -0500) | ||
| tree | a3919c99dfd9c4144513dc134836ffc902977a72 | treesnapshot (tar.gz zip) |
| parent | 0019d5c3a18c31604fb55f9cec3ceb13999c4866 | commitdiff |
softfloat: Fix division
The __udiv_qrnnd primitive that we nicked from gmp requires its
inputs to be normalized. We were not doing that. Because the
inputs are nearly normalized already, finishing that is trivial.
Replace div128to64 with a "proper" udiv_qrnnd, so that this
remains a reusable primitive.
Fixes: cf07323d494
Fixes: https://bugs.launchpad.net/qemu/+bug/1793119
Tested-by: Emilio G. Cota <cota@braap.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
The __udiv_qrnnd primitive that we nicked from gmp requires its
inputs to be normalized. We were not doing that. Because the
inputs are nearly normalized already, finishing that is trivial.
Replace div128to64 with a "proper" udiv_qrnnd, so that this
remains a reusable primitive.
Fixes: cf07323d494
Fixes: https://bugs.launchpad.net/qemu/+bug/1793119
Tested-by: Emilio G. Cota <cota@braap.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
| fpu/softfloat.c | diffblobblamehistory | |
| include/fpu/softfloat-macros.h | diffblobblamehistory |