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runtime: use max/min func

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Change-Id: I3f0b7209621b39cee69566a5cc95e4343b4f1f20
GitHub-Last-Rev: af9dbbe69a
GitHub-Pull-Request: golang/go#63321
Reviewed-on: https://go-review.googlesource.com/c/go/+/531916
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Mauri de Souza Meneguzzo <mauri870@gmail.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
This commit is contained in:
qiulaidongfeng 2023-10-10 12:43:40 +00:00 • committed by Keith Randall
parent 9ab5121691
commit b5f87b5407
10 changed files with 39 additions and 68 deletions
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8
src/runtime/export_test.go
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@ -806,7 +806,7 @@ func (b *PallocBits) PopcntRange(i, n uint) uint { return (*pageBits)(b).popcntR
// SummarizeSlow is a slow but more obviously correct implementation
// of (*pallocBits).summarize. Used for testing.
func SummarizeSlow(b *PallocBits) PallocSum {
var start, max, end uint
var start, most, end uint
const N = uint(len(b)) * 64
for start < N && (*pageBits)(b).get(start) == 0 {
@ -822,11 +822,9 @@ func SummarizeSlow(b *PallocBits) PallocSum {
} else {
run = 0
}
if run > max {
max = run
}
most = max(most, run)
}
return PackPallocSum(start, max, end)
return PackPallocSum(start, most, end)
}
// Expose non-trivial helpers for testing.