https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121016
Bug ID: 121016
Summary: coroutine appears to be allergic to {()}
Product: gcc
Version: 14.2.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: beewoolie at proton dot me
Target Milestone: ---
Greetings,
I will attach the preprocessed source to this message. I think I see what the
compiler doesn't accept.
/** *** FIXME: code generates a compiler error when enclosed in ({}) */
#define COTHREAD_PROTOTHREAD(f) ({ \
using namespace Glow::Cothreads; \
int result = Completed; \
do { \
int v = f; \
result = Completed; \
if (v & THREAD_READY) result = Yielded; \
if (v & THREAD_BLOCKED) result = Blocked; \
if (v & THREAD_SLEEPING) result = Sleeping; \
if (result != Completed) \
co_yield cothread_result{result}; \
} while (result != Completed); })
When this macro body is enclosed in ({}), the compiler throws an error.
COMPILE projects/blink/blink.cc
projects/blink/blink.cc: In function 'void
Console::cothread_main_console(cothread_main_console(Glow::Cothreads::cothread_corral&,
const
char*)::_ZN7Console21cothread_main_consoleERN4Glow9Cothreads6corralINS1_15cothread_resultEEEPKc.Frame*)':
projects/blink/blink.cc:242:3: internal compiler error: in
gimplify_var_or_parm_decl, at gimplify.cc:3308
242 | }
| ^
Please submit a full bug report, with preprocessed source (by using
-freport-bug).
See <https://bugs.linaro.org/> for instructions.
Of course, I'd like to isolate the 'using namespace' clause, so the use of this
form is preferable.
