[PATCH] D130058: [Clang] Diagnose ill-formed constant expression when setting a non fixed enum to a value outside the range of the enumeration values
Erich Keane via Phabricator via cfe-commits
cfe-commits at lists.llvm.org
Thu Jul 28 11:35:27 PDT 2022
erichkeane added inline comments.
================
Comment at: clang/test/SemaCXX/enum-scoped.cpp:330
namespace PR35586 {
- enum C { R, G, B };
+ enum C { R=-1, G, B };
enum B { F = (enum C) -1, T}; // this should compile cleanly, it used to assert.
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shafik wrote:
> @erichkeane not sure if this fix for the test maintains the original intent of the test or not.
>From the looks of it, the problem (https://github.com/llvm/llvm-project/commit/bf5fad86db497775a4f0279b8a806d150c0fa201) was that the RHS of this expression (`F = (enum C) -1`) was not an ICE, it was an eum. So I don't think this changes the AST at all, which should have hit the same crash.
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D130058/new/
https://reviews.llvm.org/D130058
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