$ go version
go version go1.21.0 linux/amd64

$ gotip version
go version devel go1.22-ac64a362 Sat Aug 12 03:56:58 2023 +0000 linux/amd64

package p

type S1 struct {
	a, b, c []int
	i       int
}

type S2 struct {
	a, b []int
	m    map[int]int
}

func F(i int, f func(S1, S2, int) int) int {
	return f(
		S1{},
		S2{m: map[int]int{}},
		1<<i)
}

$ gotip build crash.go 

# command-line-arguments
./crash.go:17:3: internal compiler error: 'F': func F, startMem[b1] has different values, old v1, new v29

goroutine 9 [running]:
runtime/debug.Stack()
	./desktop/gotip/src/runtime/debug/stack.go:24 +0x5e
cmd/compile/internal/base.FatalfAt({0x41f678?, 0xc0?}, {0xc00002bf00, 0x40}, {0xc00040ee60, 0x5, 0x5})
	./desktop/gotip/src/cmd/compile/internal/base/print.go:230 +0x1d7
cmd/compile/internal/base.Fatalf(...)
	./desktop/gotip/src/cmd/compile/internal/base/print.go:199
cmd/compile/internal/ssagen.(*ssafn).Fatalf(0x10?, {0x589a2108?, 0x7eff?}, {0xd978d9, 0x3a}, {0xc000405c00, 0x4, 0x0?})
	./desktop/gotip/src/cmd/compile/internal/ssagen/ssa.go:8017 +0x16a
cmd/compile/internal/ssa.(*Func).Fatalf(0xc00037ba00, {0xd978d9, 0x3a}, {0xc000405c00, 0x4, 0x4})
	./desktop/gotip/src/cmd/compile/internal/ssa/func.go:716 +0x279
cmd/compile/internal/ssa.memState(0xc00037ba00, {0xc000022800, 0x4, 0x0?}, {0xc000022b00, 0x4, 0x0?})
	./desktop/gotip/src/cmd/compile/internal/ssa/tighten.go:240 +0x62a
cmd/compile/internal/ssa.tighten(0xc00037ba00)
	./desktop/gotip/src/cmd/compile/internal/ssa/tighten.go:30 +0x228
....