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