Hi, I was surprised that the funcs f and g do not generate the same
assembly code:
func f() string {
s := "a" + "b"
return s
}
func g() string {
s := "a"
s += "b"
return s
}
The compiled assembly respects the apparent instructions of the source
code, with g calling runtime.concatstring2, while f does not (f benefits
from an optimization that transforms "a"+"b" into the constant "ab").
I don't know exactly what SSA does in the compiler, but I thought it would
be capable of optimizing f and g into the exact same generated code. Am I
missing something?
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