gover.Startup.AutoFile = file
		if toolchain == "default" {
			// "default" means always use the default toolchain,
			// which is already set, so nothing to do here.
			// Note that if we have Go 1.21 installed originally,
			// GOTOOLCHAIN=go1.30.0+auto or GOTOOLCHAIN=go1.30.0,
			// and the go.mod  says "toolchain default", we use Go 1.30, not Go 1.21.
			// That is, default overrides the "auto" part of the calculation

		return true
	}
	sym := f.fe.Func().Sym()
	return base.DebugHashMatchPkgFunc(sym.Pkg.Path, sym.Name)
}

func (f *Func) spSb() (sp, sb *Value) {
	initpos := src.NoXPos // These are originally created with no position in ssa.go; if they are optimized out then recreated, should be the same.
	for _, v := range f.Entry.Values {
		if v.Op == OpSB {
			sb = v
		}
		if v.Op == OpSP {
			sp = v
		}

	// so that if the minWhenModified is observed to be 0, that means the minWhenHeap that
	// follows will include the information that was zeroed out of it.
	//
	// Originally Step 3 locked every timer, which made sure any timer update that was
	// already in progress during Steps 1+2 completed and was observed by Step 3.
	// All that locking was too expensive, so now we do an atomic load of t.astate to