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all: gofmt main repo

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[This CL is part of a sequence implementing the proposal #51082.
The design doc is at https://go.dev/s/godocfmt-design.]

Run the updated gofmt, which reformats doc comments,
on the main repository. Vendored files are excluded.

For #51082.

Change-Id: I7332f099b60f716295fb34719c98c04eb1a85407
Reviewed-on: https://go-review.googlesource.com/c/go/+/384268
Reviewed-by: Jonathan Amsterdam <jba@google.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This commit is contained in:
Russ Cox 2022-02-03 14:12:08 -05:00
parent 017933163a
commit 19309779ac
373 changed files with 3238 additions and 2532 deletions
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40
src/cmd/compile/internal/ssa/prove.go
View file

@ -27,17 +27,17 @@ const (
//
// E.g.
//
// r := relation(...)
// r := relation(...)
//
// if v < w {
// newR := r & lt
// }
// if v >= w {
// newR := r & (eq|gt)
// }
// if v != w {
// newR := r & (lt|gt)
// }
// if v < w {
// newR := r & lt
// }
// if v >= w {
// newR := r & (eq|gt)
// }
// if v != w {
// newR := r & (lt|gt)
// }
type relation uint
const (
@ -746,19 +746,19 @@ func (ft *factsTable) cleanup(f *Func) {
// By far, the most common redundant pair are generated by bounds checking.
// For example for the code:
//
// a[i] = 4
// foo(a[i])
// a[i] = 4
// foo(a[i])
//
// The compiler will generate the following code:
//
// if i >= len(a) {
// panic("not in bounds")
// }
// a[i] = 4
// if i >= len(a) {
// panic("not in bounds")
// }
// foo(a[i])
// if i >= len(a) {
// panic("not in bounds")
// }
// a[i] = 4
// if i >= len(a) {
// panic("not in bounds")
// }
// foo(a[i])
//
// The second comparison i >= len(a) is clearly redundant because if the
// else branch of the first comparison is executed, we already know that i < len(a).