https://bugs.llvm.org/show_bug.cgi?id=41276
Bug ID: 41276
Summary: Invalid address space cast in C++17 mode
(CastConsistency assertion failure)
Product: clang
Version: 8.0
Hardware: All
OS: All
Status: NEW
Severity: normal
Priority: P
Component: C++
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected],
[email protected], [email protected],
[email protected]
Hi,
The following code triggers an assertion failure in clang-8 when compiling in
C++17 mode:
$ cat test.cpp
struct MyType {
MyType(int i): i(i) { }
int i;
};
MyType __attribute__((address_space(10))) m = 123;
$ clang -S -std=c++17 test.cpp
clang/lib/AST/Expr.cpp:1685: bool clang::CastExpr::CastConsistency() const:
Assertion `!Ty.isNull() && !SETy.isNull() && Ty.getAddressSpace() !=
SETy.getAddressSpace()' failed.
Godbolt segfault: https://godbolt.org/z/P4GXmF
This issue seems to have been introduced by this commit:
https://github.com/llvm/llvm-project/commit/04307941e2b16cd78347b90418204d84b584c49e
I think the old behavior was to create a CK_NoOp cast, while
PerformQualificationConversion will now create a CK_AddressSpaceConversion, but
this does not seem warranted?
Regards,
Bruno
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