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Keith Randall 679482fc60 [release-branch.go1.14] cmd/compile: sign extend constant folding properly
MOVLconst must have a properly sign-extended auxint constant.
The bit operations in these rules don't enforce that invariant.

Fixes #42755

Change-Id: I729afcad18752d9b7739e49709020e3be7b3653e
Reviewed-on: https://go-review.googlesource.com/c/go/+/272030
Trust: Keith Randall <khr@golang.org>
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: David Chase <drchase@google.com>
2020-12-03 13:58:36 +00:00
.github .github: add link to questions in ISSUE_TEMPLATE 2020-01-06 17:05:31 +00:00
api go/types: unexport Checker.LookupFieldOrMethod 2020-01-31 14:46:05 +00:00
doc [release-branch.go1.14] doc/go1.14: document json.Umarshal map key support of TextUnmarshaler 2020-09-02 13:39:59 +00:00
lib/time lib/time: update tz data to 2019c 2019-11-26 12:03:08 +00:00
misc [release-branch.go1.14-security] cmd/go, cmd/cgo: don't let bogus symbol set cgo_ldflag 2020-11-12 15:40:16 +01:00
src [release-branch.go1.14] cmd/compile: sign extend constant folding properly 2020-12-03 13:58:36 +00:00
test [release-branch.go1.14] cmd/compile: sign extend constant folding properly 2020-12-03 13:58:36 +00:00
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AUTHORS A+C: change email address for Akhil Indurti 2019-09-09 15:30:38 +00:00
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VERSION [release-branch.go1.14-security] go1.14.12 2020-11-12 16:47:42 +00:00

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