guopeilin added a comment.
Hi @hokein , I encounter a bug when clang parses enum and I have been recorded
in https://bugs.llvm.org/show_bug.cgi?id=51554.
The source code like the following:
enum E { e = E() };
int main() {
return 0;
}
Some error message are expected like the following:
test.cpp:1:14: error: invalid use of incomplete type 'E'
enum E { e = E() };
^~~
test.cpp:1:6: note: definition of 'E' is not complete until the closing '}'
enum E { e = E() };
Also, I have made some analyses like the following:
In ParseDecl.cpp:
1. llvm-10:
AssignedVal.get(): NULL
2. llvm-12(Context.getLangOpts().RecoveryASTType: default
false)(early-version):
AssignedVal.get(): RecoveryExpr 0xaaaaba19df20 '<dependent type>'
contains-errors lvalue
3. llvm-12(Context.getLangOpts().RecoveryASTType: default true)
(latest-version, Finally crashed):
AssignedVal.get()->dump(): RecoveryExpr 0xaaaabb4d9500 'enum E'
contains-errors
In CheckEnumConstant(), EltTy(type: QualType, value: EnumType 0xaaaabb517dd0
'enum E') cannot use getIntWidth(), so crashed. But the code doesn't seem to be
wrong around here.
Could you please have a look at this issue? Thanks a lot.
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D82657/new/
https://reviews.llvm.org/D82657
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