Re: gm2 internal compiler error report

[Alice Osako]

    Gaius Mulley:
> Thanks for the bug report - I believe this is fixed in the latest git
> gcc repro (gcc-14):
>
> $ gm2 -g -Idefs -fiso -c impls/UTF8.mod 
> impls/UTF8.mod:47:13: error: In procedure ‘GetExtChar’: type incompatibility between ‘CARDINAL’ and ‘BYTE’
>    47 |    RETURN b - {7, 6};
>       |           ~~^~~~~~~~
>
> $ gm2 --version
> gm2 (GCC) 14.0.1 20240308 (experimental)
>
> I'll back port the fix to gm2 13.2
>     
    
    OK, I tried the latest build of gm2, which according to the GCC git
    summary includes the fix you mentioned, and I continued to get an
    internal compiler error. 
    
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    // Target: x86_64-pc-linux-gnu
      // Configured with:
      /home/schol-r-lea/Deployments/gm2/gcc/configure
      --host=x86_64-pc-linux-gnu --target=x86_64-pc-linux-gnu
      --prefix=/home/schol-r-lea/opt --bindir=/home/schol-r-lea/opt/bin
      --libdir=/home/schol-r-lea/opt/lib
      --libexecdir=/home/schol-r-lea/opt/lib --enable-threads=posix
      --enable-clocale=gnu --disable-multilib --disable-bootstrap
      --enable-checking --enable-languages=m2 : (reconfigured)
      /home/schol-r-lea/Deployments/gm2/gcc/configure
      --host=x86_64-pc-linux-gnu --target=x86_64-pc-linux-gnu
      --prefix=/home/schol-r-lea/opt --bindir=/home/schol-r-lea/opt/bin
      --libdir=/home/schol-r-lea/opt/lib
      --libexecdir=/home/schol-r-lea/opt/lib --enable-threads=posix
      --enable-clocale=gnu --disable-multilib --disable-bootstrap
      --enable-checking --enable-languages=m2
      // Thread model: posix
      // Supported LTO compression algorithms: zlib zstd
      // gcc version 13.2.1 20240314 (GCC) 
      // 
      //  _M2_UTF8_init _M2_UTF8_fini
      // -quiet: internal compiler error: not expecting this kind of
      symbol
      // 0x1f081d7 internal_error(char const*, ...)
      //     ???:0
      // 0x8cbdc2 m2linemap_internal_error
      //     ???:0
      // 0x99669b M2Emit_InternalError
      //     ???:0
      // 0x8f60ee M2Error_InternalError
      //     ???:0
      // 0x9573b3 SymbolTable_IsValueSolved
      //     ???:0
      // 0x8e206d M2ALU_TryEvaluateValue
      //     ???:0
      // 0x8fb656 M2GCCDeclare_TryDeclareConstructor
      //     ???:0
      // 0x8fb6c2 M2GCCDeclare_TryDeclareConstant
      //     ???:0
      // 0x90701e M2GenGCC_ResolveConstantExpressions
      //     ???:0
      // 0x938c6c M2Scope_ForeachScopeBlockDo
      //     ???:0
      // 0x8f23c2 M2Code_CodeBlock
      //     ???:0
      // 0x8dfb2a Lists_ForeachItemInListDo
      //     ???:0
      // 0x8f2536 M2Code_CodeBlock
      //     ???:0
      // 0x8f28da M2Code_Code
      //     ???:0
      // 0x8f3751 M2Comp_compile
      //     ???:0
      // Please submit a full bug report, with preprocessed source.
      // Please include the complete backtrace with any bug report.
      // See <https://gcc.gnu.org/bugs/> for instructions.
    
    
      // /home/schol-r-lea/opt/lib/gcc/x86_64-pc-linux-gnu/13.2.1/cc1gm2
      -quiet -dumpbase UTF8.mod -dumpbase-ext .mod -mtune=generic
      -march=x86-64 -g -fiso -freport-bug -fm2-pathname=-
      -fm2-pathnameIdefs/ -fm2-pathnameI. -fscaffold-dynamic
      -flibs=m2iso,m2cor,m2pim,m2log -fm2-pathname=- -fm2-pathnameIdefs/
      -fm2-pathnameI. impls/UTF8.mod -c -o - -frandom-seed=0
      -fdump-noaddr
    
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    
    The current version of the code is which seems to breaking is:
    
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    (* in the definition file *)
      TYPE
         Octet = PACKEDSET OF CARDINAL [0 .. 0FFH];
         UTF8Buffer = ARRAY [0..3] OF Octet;
    
    
      (* in the implementation file  *)
      PROCEDURE GetSubChar(b: Octet): Octet;
      BEGIN
         RETURN b - {6..7};
      END GetSubChar;
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    
    Again, the repo for the whole can be found at
    https://github.com/Schol-R-LEA/UNICODE-For-Modula-2/
    
    Sorry to keep bothering you with this.