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cmd/callgraph: update flag docstring
And add a TODO. Change-Id: I51c63b32e9ac4309cdfb8228348a5d528f36a919 Reviewed-on: https://go-review.googlesource.com/10489 Reviewed-by: Robert Griesemer <gri@golang.org>
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@ -42,7 +42,7 @@ import (
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)
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var algoFlag = flag.String("algo", "rta",
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`Call graph construction algorithm, one of "rta" or "pta"`)
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`Call graph construction algorithm (static, cha, rta, pta)`)
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var testFlag = flag.Bool("test", false,
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"Loads test code (*_test.go) for imported packages")
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@ -15,6 +15,8 @@ func CallGraph(prog *ssa.Program) *callgraph.Graph {
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cg := callgraph.New(nil) // TODO(adonovan) eliminate concept of rooted callgraph
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// TODO(adonovan): opt: use only a single pass over the ssa.Program.
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// TODO(adonovan): opt: this is slower than RTA (perhaps because
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// the lower precision means so many edges are allocated)!
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for f := range ssautil.AllFunctions(prog) {
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fnode := cg.CreateNode(f)
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for _, b := range f.Blocks {
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