re: xsltproc floating-point exception

["Maciej W. Rozycki" <macro%orcam.me.uk@localhost>]

On Mon, 4 May 2026, matthew green wrote:

> i tried to do this but i got a compiler crash in security/libgcrypt:
> 
> libtool: compile:  gcc -DHAVE_CONFIG_H -I. -I.. -I../src -I../mpi -I/var/obj/pkgsrc/security/libgcrypt/work.vax-simh/.buildlink/include -O2 -fvisibility=hidden -fno-delete-null-pointer-checks -Wall -MT rijndael.lo -MD -MP -MF .deps/rijndael.Tpo -c rijndael.c  -fPIC -DPIC -o .libs/rijndael.o
> rijndael.c: In function 'do_setkey':
> rijndael.c:1015:1: error: insn does not satisfy its constraints:
>  1015 | }
>       | ^
> (insn 309 308 120 20 (parallel [
>             (set (reg/v:SI 2 %r2 [orig:52 out ] [52])
>                 (zero_extract:SI (mem:SI (reg:SI 2 %r2) [1 enc_tables.T[_110]+0 S4 A32])
>                     (const_int 8 [0x8])
>                     (const_int 8 [0x8])))
>             (clobber (reg:CC 16 %psl))
>         ]) "rijndael.c":626:7 476 {*extzv_aligned_2}
>      (expr_list:REG_UNUSED (reg:CC 16 %psl)
>         (nil)))
> during RTL pass: cprop_hardreg
> rijndael.c:1015:1: internal compiler error: in extract_constrain_insn, at recog.cc:2719
> 0xeea65a diagnostic_impl(rich_location*, diagnostic_metadata const*, int, char const*, void**, diagnostic_t)
>         ???:0
> 0xeea8e3 internal_error(char const*, ...)
>         ???:0
> 0xfbaaaa fancy_abort(char const*, int, char const*)
>         ???:0
> 0xfba4da _fatal_insn(char const*, rtx_def const*, char const*, int, char const*)
>         ???:0
> 0xfba51f _fatal_insn_not_found(rtx_def const*, char const*, int, char const*)
>         ???:0
> 0x2a4737 extract_constrain_insn(rtx_insn*)
>         ???:0
> 0xd4c74a copyprop_hardreg_forward_1(basic_block_def*, value_data*)
>         ???:0
> 0xd4d54e (anonymous namespace)::cprop_hardreg_bb(basic_block_def*, value_data*, simple_bitmap_def*)
>         ???:0
> 0xd4d662 (anonymous namespace)::pass_cprop_hardreg::execute(function*)
>         ???:0

 Would you please file a bug upstream, at <https://gcc.gnu.org/bugzilla/>, 
quoting the compiler invocation line and attaching the preprocessed source 
file (rijndael.i)?

  Maciej