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| author | Jonathan Albrecht <jonathan.albrecht@ibm.com> | 2020-12-02 10:44:10 -0500 |
|---|---|---|
| committer | Dmitri Shuralyov <dmitshur@golang.org> | 2021-05-20 00:02:15 +0000 |
| commit | 963687891319d118c20a2a71f0234ceb3a8dade4 (patch) | |
| tree | 805c74301962efb18b6380f4191a7d4178863b97 /src/cmd/link/internal/ld/macho.go | |
| parent | 44a6805ca92b00f30d5ed3f9e8d0b464d3f402bf (diff) | |
| download | go-963687891319d118c20a2a71f0234ceb3a8dade4.tar.gz go-963687891319d118c20a2a71f0234ceb3a8dade4.zip | |
[release-branch.go1.15] math/big: remove the s390x assembly for shlVU and shrVU
The s390x assembly for shlVU does a forward copy when the shift amount s
is 0. This causes corruption of the result z when z is aliased to the
input x.
This fix removes the s390x assembly for both shlVU and shrVU so the pure
go implementations will be used.
Test cases have been added to the existing TestShiftOverlap test to
cover shift values of 0, 1 and (_W - 1).
Fixes #45335
Change-Id: I75ca0e98f3acfaa6366a26355dcd9dd82499a48b
Reviewed-on: https://go-review.googlesource.com/c/go/+/274442
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Trust: Robert Griesemer <gri@golang.org>
(cherry picked from commit b1369d5862bc78eaa902ae637c874e6a6133f1f9)
Reviewed-on: https://go-review.googlesource.com/c/go/+/320169
Trust: Carlos Amedee <carlos@golang.org>
Run-TryBot: Carlos Amedee <carlos@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Diffstat (limited to 'src/cmd/link/internal/ld/macho.go')
0 files changed, 0 insertions, 0 deletions