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go / go / a222963bc4c6f370a6d3bbf3954447433317b689
commita222963bc4c6f370a6d3bbf3954447433317b689[log] [tgz]
authorCherry Mui <cherryyz@google.com>Mon Feb 14 12:43:27 2022 -0500
committerDmitri Shuralyov <dmitshur@golang.org>Fri Feb 18 00:51:15 2022 +0000
tree9deb0a98d4d79bc07fa733f07463a6a11d40df95
parent8a24f67ca73fc275646d768c66566af064f7ae09 [diff]
[release-branch.go1.16] cmd/compile: correct type of pointer difference on RISCV64

Pointer comparison is lowered to the following on RISCV64

(EqPtr x y) => (SEQZ (SUB <x.Type> x y))

The difference of two pointers (the SUB) should not be pointer
type. Otherwise it can cause the GC to find a bad pointer.

Updates #51101.
Fixes #51198.

Change-Id: I7e73c2155c36ff403c032981a9aa9cccbfdf0f64
Reviewed-on: https://go-review.googlesource.com/c/go/+/385655
Trust: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
(cherry picked from commit 1ed30ca537a05b887f8479027b6363a03f957610)
Reviewed-on: https://go-review.googlesource.com/c/go/+/386475
3 files changed
tree: 9deb0a98d4d79bc07fa733f07463a6a11d40df95
  1. .github/
  2. api/
  3. doc/
  4. lib/
  5. misc/
  6. src/
  7. test/
  8. .gitattributes
  9. .gitignore
  10. AUTHORS
  11. CONTRIBUTING.md
  12. CONTRIBUTORS
  13. favicon.ico
  14. LICENSE
  15. PATENTS
  16. README.md
  17. robots.txt
  18. SECURITY.md
  19. VERSION
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