cmd/compile/internal/pgo: gofmt and simplify

Change-Id: I29621cb6a3845917e7558be28579fe0e1b2d5afa
Reviewed-on: https://go-review.googlesource.com/c/go/+/446776
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
Run-TryBot: Keith Randall <khr@golang.org>
Reviewed-by: Bryan Mills <bcmills@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
Auto-Submit: Keith Randall <khr@golang.org>

diff --git a/src/cmd/compile/internal/pgo/irgraph.go b/src/cmd/compile/internal/pgo/irgraph.go
index 8177cf855e749cc6d5dcea9af252f745cc6c632e..ca9e2f3b5adde3917c91d84e390594c5bcc410c9 100644 (file)
--- a/src/cmd/compile/internal/pgo/irgraph.go
+++ b/src/cmd/compile/internal/pgo/irgraph.go
@@ -380,7 +380,7 @@ func (p *Profile) PrintWeightedCallGraphDOT(edgeThreshold float64) {
 
        // Determine nodes of DOT.
        nodes := make(map[string]*ir.Func)
-       for name, _ := range funcs {
+       for name := range funcs {
                if n, ok := p.WeightedCG.IRNodes[name]; ok {
                        for _, e := range p.WeightedCG.OutEdges[n] {
                                if _, ok := nodes[ir.PkgFuncName(e.Src.AST)]; !ok {
@@ -484,7 +484,7 @@ func (g *IRGraph) calculateWeight(parent *IRNode, cur *IRNode) int64 {
        sum := int64(0)
        pw := int64(0)
        for _, InEdge := range g.InEdges[cur] {
-               sum = sum + InEdge.Weight
+               sum += InEdge.Weight
                if InEdge.Src == parent {
                        pw = InEdge.Weight
                }