LDC halt with `-w` and use of function _and_ parameter magic attributes.

[bcarneal]

When compiling a function with -w and @target attribute LDC will exit with a spurious warning: "ignoring unrecognized special parameter attribute ...".

Here's the program that elicited the warning and subsequent exit on godbolt using 1.39.0:

import core.attribute;

@target("arch=znver4") void f(size_t n, int* a, int* b, @restrict int* dst) {
    foreach(i, ref x; dst[0 .. n])
        x = a[i] + b[i];
}

[JohanEngelen]

This is not specific to @target. Test case fails for any LDC magic attribute (e.g. replace @target with @hidden)

[bcarneal]

Good to hear it's repeatable and somewhat "generic".

On Mon, Apr 14, 2025 at 2:02 PM Johan Engelen @.***> wrote:

This is not specific to @target. Test case fails for any LDC magic attribute (e.g. replace @target with @hidden)

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This is not specific to @target. Test case fails for any LDC magic attribute (e.g. replace @target with @hidden)

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