Learn IPConstProp to propagate arguments that are directly returned. Strictly speaking these are not constant values. However, when a function always returns one of its arguments, then from the point of view of each caller the return value is constant (or at least a known value) and can be replaced.
Learn IPConstProp to propagate arguments that are directly returned. Strictly
speaking these are not constant values. However, when a function always returns
one of its arguments, then from the point of view of each caller the return
value is constant (or at least a known value) and can be replaced.



git-svn-id: 0ff597fd157e6f4fc38580e8d64ab130330d2411@52397 91177308-0d34-0410-b5e6-96231b3b80d8

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