runtime: retype mheap.reclaimIndex as atomic.Uint64

[git-generate]
cd src/runtime
mv export_test.go export.go
GOROOT=$(dirname $(dirname $PWD)) rf '
  add mheap.reclaimIndex \
// reclaimIndex is the page index in allArenas of next page to \
// reclaim. Specifically, it refers to page (i % \
// pagesPerArena) of arena allArenas[i / pagesPerArena]. \
// \
// If this is >= 1<<63, the page reclaimer is done scanning \
// the page marks. \
reclaimIndex_ atomic.Uint64
  ex {
    import "runtime/internal/atomic"

    var t mheap
    var v, w uint64
    var d int64

    t.reclaimIndex -> t.reclaimIndex_.Load()
    t.reclaimIndex = v -> t.reclaimIndex_.Store(v)
    atomic.Load64(&t.reclaimIndex) -> t.reclaimIndex_.Load()
    atomic.LoadAcq64(&t.reclaimIndex) -> t.reclaimIndex_.LoadAcquire()
    atomic.Store64(&t.reclaimIndex, v) -> t.reclaimIndex_.Store(v)
    atomic.StoreRel64(&t.reclaimIndex, v) -> t.reclaimIndex_.StoreRelease(v)
    atomic.Cas64(&t.reclaimIndex, v, w) -> t.reclaimIndex_.CompareAndSwap(v, w)
    atomic.Xchg64(&t.reclaimIndex, v) -> t.reclaimIndex_.Swap(v)
    atomic.Xadd64(&t.reclaimIndex, d) -> t.reclaimIndex_.Add(d)
  }
  rm mheap.reclaimIndex
  mv mheap.reclaimIndex_ mheap.reclaimIndex
'
mv export.go export_test.go

Change-Id: I1d619e3ac032285b5f7eb6c563a5188c8e36d089
Reviewed-on: https://go-review.googlesource.com/c/go/+/356711
Reviewed-by: Austin Clements <austin@google.com>
Trust: Michael Knyszek <mknyszek@google.com>
2 files changed
tree: 2a63625f5b3b41dc6b7aa98b39c55f6c45099b4b
  1. .github/
  2. api/
  3. doc/
  4. lib/
  5. misc/
  6. src/
  7. test/
  8. .gitattributes
  9. .gitignore
  10. AUTHORS
  11. codereview.cfg
  12. CONTRIBUTING.md
  13. CONTRIBUTORS
  14. LICENSE
  15. PATENTS
  16. README.md
  17. SECURITY.md
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