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runtime: replace all uses of CtzXX with TrailingZerosXX

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Replace all uses of Ctz64/32/8 with TrailingZeros64/32/8, because they
are the same and maybe duplicated. Also renamed CtzXX functions in 386
assembly code.

Change-Id: I19290204858083750f4be589bb0923393950ae6d
Reviewed-on: https://go-review.googlesource.com/c/go/+/438935
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Bryan Mills <bcmills@google.com>
Auto-Submit: Keith Randall <khr@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
Run-TryBot: Keith Randall <khr@golang.org>
This commit is contained in:
Youlin Feng 2022-10-05 15:29:29 +08:00 • committed by Gopher Robot
parent c45ebef05e
commit 7ae652b7c0
12 changed files with 114 additions and 158 deletions
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2
src/runtime/stack.go
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@ -617,7 +617,7 @@ func adjustpointers(scanp unsafe.Pointer, bv *bitvector, adjinfo *adjustinfo, f
}
b := *(addb(bv.bytedata, i/8))
for b != 0 {
j := uintptr(sys.Ctz8(b))
j := uintptr(sys.TrailingZeros8(b))
b &= b - 1
pp := (*uintptr)(add(scanp, (i+j)*goarch.PtrSize))
retry: