| commit | f44404ebbfeff57f3e45ebf4b314a320bb89841f | [log] [tgz] |
|---|---|---|
| author | Matthew Dempsky <mdempsky@google.com> | Tue Jun 11 19:52:58 2019 -0700 |
| committer | Matthew Dempsky <mdempsky@google.com> | Wed Jun 12 18:03:46 2019 +0000 |
| tree | 4e76a2aa951eb65617c6d50092ae53c1b329a23d | |
| parent | 87367cf86a0a8390418a8e2431a11d5dcdddff72 [diff] |
cmd/compile: fix range analysis of small signed integers For int8, int16, and int32, comparing their unsigned value to MaxInt64 to determine non-negativity doesn't make sense, because they have negative values whose unsigned representation is smaller than that. Fix is simply to compare with the appropriate upper bound based on the value type's size. Fixes #32560. Change-Id: Ie7afad7a56af92bd890ba5ff33c86d1df06cfd9a Reviewed-on: https://go-review.googlesource.com/c/go/+/181797 Run-TryBot: Matthew Dempsky <mdempsky@google.com> Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com> Reviewed-by: David Chase <drchase@google.com> Reviewed-by: Keith Randall <khr@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org>
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