Messages in this thread | | | From | Christophe Leroy <> | Subject | Re: [PATCH] compiler-gcc.h: Remove ancient workaround for gcc PR 58670 | Date | Fri, 26 Aug 2022 07:02:53 +0000 |
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Le 25/08/2022 à 20:08, Segher Boessenkool a écrit : > Hi! > > On Thu, Aug 25, 2022 at 04:00:52PM +0530, Naveen N. Rao wrote: >> This is causing a build issue on ppc64le with a new patch replacing use >> of unreachable() with __builtin_unreachable() in __WARN_FLAGS(): >> https://lore.kernel.org/linuxppc-dev/20220808114908.240813-2-sv@linux.ibm.com/ > > What is the compiler version? If this is a GCC version that is still > supported, could you please open a PR? <https://gcc.gnu.org/bugs.html> > >> during RTL pass: combine >> In file included from /linux/kernel/locking/rtmutex_api.c:9: >> /linux/kernel/locking/rtmutex.c: In function >> '__rt_mutex_slowlock.constprop': >> /linux/kernel/locking/rtmutex.c:1612:1: internal compiler error: in >> purge_dead_edges, at cfgrtl.c:3369 >> 1612 | } >> | ^ >> 0x142817c internal_error(char const*, ...) >> ???:0 >> 0x5c8a1b fancy_abort(char const*, int, char const*) >> ???:0 >> 0x72017f purge_all_dead_edges() >> ???:0 >> Please submit a full bug report, >> with preprocessed source if appropriate. >> Please include the complete backtrace with any bug report. >> See <file:///usr/share/doc/gcc-11/README.Bugs> for instructions. > > (For some reason your compiler does not show compiler source code file > names or line numbers.) > > So it is GCC 11... is it 11.3? If not, please try with that.
With gcc 11.3 I get:
CC kernel/locking/rtmutex_api.o during RTL pass: combine In file included from kernel/locking/rtmutex_api.c:9: kernel/locking/rtmutex.c: In function '__rt_mutex_slowlock.constprop': kernel/locking/rtmutex.c:1612:1: internal compiler error: in purge_dead_edges, at cfgrtl.c:3369 1612 | } | ^ Please submit a full bug report, with preprocessed source if appropriate. See <https://gcc.gnu.org/bugs/> for instructions. make[2]: *** [scripts/Makefile.build:249 : kernel/locking/rtmutex_api.o] Erreur 1 make[1]: *** [scripts/Makefile.build:465 : kernel/locking] Erreur 2 make: *** [Makefile:1857 : kernel] Erreur 2
With gcc 12.2 I get:
CC kernel/locking/rtmutex_api.o during RTL pass: combine In file included from kernel/locking/rtmutex_api.c:9: kernel/locking/rtmutex.c: In function '__rt_mutex_slowlock.constprop': kernel/locking/rtmutex.c:1612:1: internal compiler error: in purge_dead_edges, at cfgrtl.cc:3347 1612 | } | ^ Please submit a full bug report, with preprocessed source (by using -freport-bug). See <https://gcc.gnu.org/bugs/> for instructions. make[2]: *** [scripts/Makefile.build:249 : kernel/locking/rtmutex_api.o] Erreur 1 make[1]: *** [scripts/Makefile.build:465 : kernel/locking] Erreur 2 make: *** [Makefile:1857 : kernel] Erreur 2
> >> So, it looks like gcc still has issues with certain uses of asm goto. > > Could be. Please attach preprocessed code (or reduced code that shows > the same problem if you have that / can make that). Thanks! > > > Segher
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