Control instantiation parameters are not always treated as constants · Issue #2995 · p4lang/p4c · GitHub

8000 Control instantiation parameters are not always treated as constants · Issue #2995 · p4lang/p4c · GitHub

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Control instantiation parameters are not always treated as constants #2995

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Control instantiation parameters are not always treated as constants#2995

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Here is a simple example:

control c()(int bar=16) {
    bit<(bar)> foo;
    apply {
    }
}

Compiling this with p4test produces the following error:

param_test.p4(2): [--Werror=expected] error: bar: expected a constant
    bit<(bar)> foo;
         ^^^

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