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Jonathan Albrecht 9636878913 [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 b1369d5862)
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>
2021-05-20 00:02:15 +00:00
.github .github: add link to questions in ISSUE_TEMPLATE 2020-01-06 17:05:31 +00:00
api go/printer: remove exported StdFormat flag 2020-07-17 02:15:01 +00:00
doc [release-branch.go1.15] doc/go1.15: mention 1.15.3 cgo restriction on empty structs 2020-12-16 04:10:01 +00:00
lib/time lib/time, time/tzdata: update tz data to 2020a 2020-04-30 08:07:39 +00:00
misc [release-branch.go1.15] cmd/link: avoid exporting all symbols on windows buildmode=pie 2021-03-31 21:39:47 +00:00
src [release-branch.go1.15] math/big: remove the s390x assembly for shlVU and shrVU 2021-05-20 00:02:15 +00:00
test [release-branch.go1.15] cmd/compile: disable shortcircuit optimization for intertwined phi values 2021-03-31 14:33:56 +00:00
.gitattributes all: treat all files as binary, but check in .bat with CRLF 2020-06-08 15:31:43 +00:00
.gitignore
AUTHORS A+C: add Kush Patel (corporate CLA for Hootsuite Inc) 2020-07-08 00:10:44 +00:00
CONTRIBUTING.md
CONTRIBUTORS [release-branch.go1.15] all: merge master into release-branch.go1.15 2020-08-11 17:05:57 +00:00
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VERSION [release-branch.go1.15] go1.15.12 2021-05-06 14:59:58 +00:00

README.md

The Go Programming Language

Go is an open source programming language that makes it easy to build simple, reliable, and efficient software.

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