From c1aad08901d753bee7e26b15d15dd1ffad9479a2 Mon Sep 17 00:00:00 2001 From: Keith Randall Date: Wed, 21 May 2025 11:15:24 -0700 Subject: [PATCH] cmd/compile: remove unused function from escape analysis Change-Id: Ie6ff3d2dd62acfad6c1c7827973f1d9381923ca7 Reviewed-on: https://go-review.googlesource.com/c/go/+/675115 Reviewed-by: David Chase LUCI-TryBot-Result: Go LUCI Reviewed-by: Keith Randall Reviewed-by: Cuong Manh Le --- src/cmd/compile/internal/escape/graph.go | 29 ------------------------ 1 file changed, 29 deletions(-) diff --git a/src/cmd/compile/internal/escape/graph.go b/src/cmd/compile/internal/escape/graph.go index 0bbf6bb941..d20809d442 100644 --- a/src/cmd/compile/internal/escape/graph.go +++ b/src/cmd/compile/internal/escape/graph.go @@ -139,35 +139,6 @@ func (l *location) leakTo(sink *location, derefs int) { l.paramEsc.AddHeap(derefs) } -// leakTo records that parameter l leaks to sink. -func (b *batch) leakTo(l, sink *location, derefs int) { - if (logopt.Enabled() || base.Flag.LowerM >= 2) && !l.hasAttr(attrEscapes) { - if base.Flag.LowerM >= 2 { - fmt.Printf("%s: parameter %v leaks to %s with derefs=%d:\n", base.FmtPos(l.n.Pos()), l.n, b.explainLoc(sink), derefs) - } - explanation := b.explainPath(sink, l) - if logopt.Enabled() { - var e_curfn *ir.Func // TODO(mdempsky): Fix. - logopt.LogOpt(l.n.Pos(), "leak", "escape", ir.FuncName(e_curfn), - fmt.Sprintf("parameter %v leaks to %s with derefs=%d", l.n, b.explainLoc(sink), derefs), explanation) - } - } - - // If sink is a result parameter that doesn't escape (#44614) - // and we can fit return bits into the escape analysis tag, - // then record as a result leak. - if !sink.hasAttr(attrEscapes) && sink.isName(ir.PPARAMOUT) && sink.curfn == l.curfn { - if ri := sink.resultIndex - 1; ri < numEscResults { - // Leak to result parameter. - l.paramEsc.AddResult(ri, derefs) - return - } - } - - // Otherwise, record as heap leak. - l.paramEsc.AddHeap(derefs) -} - func (l *location) isName(c ir.Class) bool { return l.n != nil && l.n.Op() == ir.ONAME && l.n.(*ir.Name).Class == c } -- 2.50.0