https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92489
Bug ID: 92489 Summary: GNAT Bug for Invalid_Value Attribute Product: gcc Version: 9.2.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: ada Assignee: unassigned at gcc dot gnu.org Reporter: kunalsareen at posteo dot org Target Milestone: --- Created attachment 47228 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=47228&action=edit Minimal example to showcase bug (including all relevant packages in a single file) # System Setup: ## gcc -v: Using built-in specs. COLLECT_GCC=gcc COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-pc-linux-gnu/9.2.0/lto-wrapper Target: x86_64-pc-linux-gnu Configured with: /build/gcc/src/gcc/configure --prefix=/usr --libdir=/usr/lib --libexecdir=/usr/lib --mandir=/usr/share/man --infodir=/usr/share/info --with-bugurl=https://bugs.archlinux.org/ --enable-languages=c,c++,ada,fortran,go,lto,objc,obj-c++,d --enable-shared --enable-threads=posix --with-system-zlib --with-isl --enable-__cxa_atexit --disable-libunwind-exceptions --enable-clocale=gnu --disable-libstdcxx-pch --disable-libssp --enable-gnu-unique-object --enable-linker-build-id --enable-lto --enable-plugin --enable-install-libiberty --with-linker-hash-style=gnu --enable-gnu-indirect-function --enable-multilib --disable-werror --enable-checking=release --enable-default-pie --enable-default-ssp --enable-cet=auto gdc_include_dir=/usr/include/dlang/gdc Thread model: posix gcc version 9.2.0 (GCC) ## gcc/gnatmake switches used: No explicit switches or flags were used in gnatmake, and hence all compilation is done as gcc -c <source_file>. # Expected Behaviour: The program should compile and run. I have confirmed the above works for gcc version 8.3.0. # Actual Behaviour: A GNAT bug is encountered as such: +===========================GNAT BUG DETECTED==============================+ | 9.2.0 (x86_64-pc-linux-gnu) GCC error: | | in gnat_to_gnu_entity, at ada/gcc-interface/decl.c:449 | | Error detected at id_dispenser.adb:28:37 [minimal_example.adb:6:5] | | Please submit a bug report; see https://gcc.gnu.org/bugs/ . | | Use a subject line meaningful to you and us to track the bug. | | Include the entire contents of this bug box in the report. | | Include the exact command that you entered. | | Also include sources listed below. | +==========================================================================+ I believe it is complaining about the Invalid_Value attribute. This bug is present in gcc version 9.1.0 as well. # Other Remarks: As mentioned earlier, the above can be compiled in gcc version 8.3.0 and below (have tested till 7.4.0). I have also attached a log file which is generated by using the -gnatd.n switch in gcc 9.2.0.