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Cuong Manh Le ddc93a536f cmd/compile: fix unified IR shapifying recursive instantiated types
Shape-based stenciling in unified IR is done by converting type argument
to its underlying type. So it agressively check that type argument is
not a TFORW. However, for recursive instantiated type argument, it may
still be a TFORW when shapifying happens. Thus the assertion failed,
causing the compiler crashing.

To fix it, just allow fully instantiated type when shapifying.

Fixes #54512
Fixes #54722

Change-Id: I527e3fd696388c8a37454e738f0324f0c2ec16cb
Reviewed-on: https://go-review.googlesource.com/c/go/+/426335
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Heschi Kreinick <heschi@google.com>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2022-08-30 17:23:27 +00:00
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src cmd/compile: fix unified IR shapifying recursive instantiated types 2022-08-30 17:23:27 +00:00
test cmd/compile: fix unified IR shapifying recursive instantiated types 2022-08-30 17:23:27 +00:00
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