Hi Jack,
Thanks for reporting the issue! Sorry for my belated reply.
Seems all the failures were caused by a clang issue, which could be
reproduced by:
$ cat x.cc
namespace NS {
template<typename T> struct S {
struct S1;
struct S2;
struct S3 : public S1, public S2 {};
};
}
$ clang -v
clang version 9.0.1
Target: x86_64-unknown-linux-gnu
Thread model: posix
$ clang x.cc
clang-9:
/backup/work/compilers/compiler-source/llvm-9.0.1.src/tools/clang/include/clang/AST/DeclCXX.h:671:
struct DefinitionData &clang::CXXRecordDecl::data() const: Assertion
`DD && "queried property of class with no definition"' failed.
Stack dump:
Actually, seems the latest dev version also has the same issue. I
submitted a bug to Clang:
https://bugs.llvm.org/show_bug.cgi?id=48307
- Yang
On 7/29/20 10:51 AM, Jack wrote:
Please let me know if you want these sent separately - there are nine
included.
For background information, I am trying to track down a ICE (internal
compiler error) in gcc (specifically x86_64-pc-linux-gnu-g++) when
compiling boost-1.73.0. gcc has been built with debugging info, but
the file I am reducing is part of boost. The current run has been
going for over 48 hours and has so far reduced from 92792 lines/
3267829 bytes to 12389 lines/585124 bytes. A minor issue (but
probably not for creduce itself) is that the bug seems
non-deterministic, so a single example may not fail every time. An
earlier run (about 6 hours) came down to a single (not actually
syntactically valid) line, and the current run is after applying a
patch to gcc to fix that one. Additional info, in case it matters, is
that the interestingness test is just grepping for "internal compiler
error" in the gcc output.
I am not subscribed to either list, but will be watching the archives
in case I need to subscribe to participate in any discussion.
Thank.