[Bug target/99422] [11 Regression] ICE in extract_constrain_insn building glibc pthread_create

[ebotcazou at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99422

--- Comment #24 from Eric Botcazou <ebotcazou at gcc dot gnu.org> ---
> Technically, you have ;-)  There's gcc211 in the cfarm, but
> unfortunately the installation is highly nonstandard, doesn't follow
> cfarm conventions, and lacks GNAT.  While I do have a local gcc
> installation on the box without these issues, I agree it would be quite
> tedious to use.  I suspect that the same issue occurs on Linux/sparc64,
> too (gcc202), but trying that on a machine that's pretty unreliable
> wouldn't be my idea of fun.

This can be reproduced with a minimal Ada cross-compiler, i.e. you just need
the gnat1 compiler, the skeleton of libada and the command line:
  $(srcdir)/configure --target=sparc-sun-solaris2.11
--enable-languages=c,c++,ada
  make CFLAGS=-g CXXFLAGS=-g ADAFLAGS="-gnatpga -gnatws"
  cd gcc/ada; make gnatlib
  cd rts; ../../gnat1 -quiet a-lfztio.ads -gnatpg

a-ztflau.adb: In function 'Ada.Long_Float_Wide_Wide_Text_Io.Aux_Float.Put':
a-ztflau.adb:101:8: error: insn does not satisfy its constraints:
(insn 32 31 88 2 (set (mem/c:DF (plus:SI (reg/f:SI 30 %fp)
                (const_int -5232 [0xffffffffffffeb90])) [29 %sfp+-5232 S8 A64])
        (reg:DF 40 %f8 [orig:109 _1 ] [109])) "a-ztflau.adb":99:7 153
{*movdf_insn_sp32}
     (nil))
during RTL pass: reload
+===========================GNAT BUG DETECTED==============================+
| 11.0.1 20210310 (experimental) [master revision
1c3c12b0a6f:f62bd375583:47403a0eefac52636db768dc46c3c88a2cd4b28e]
(sparc-sun-solaris2.11) GCC error:|
| in extract_constrain_insn, at recog.c:2670                               |
| Error detected around a-ztflau.adb:101:8