[Bug target/68973] [6 regression] Internal compiler error on power for gcc/testsuite/g++.dg/pr67211.C

[trippels at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68973

Markus Trippelsdorf <trippels at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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                 CC|                            |trippels at gcc dot gnu.org

--- Comment #13 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
Created attachment 37639
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=37639&action=edit
reduced testcase

With today's trunk I've hit the ICE in the boost testsuite:

 % g++ -c -w -mcpu=power8 -O3 -mlra test_fixed_containers.ii
test_fixed_containers.ii: In function ‘void test_matrix(std::B<char>) [with T =
std::complex<float>]’:
test_fixed_containers.ii:203:1: error: insn does not satisfy its constraints:
 }
 ^
(insn 1206 1205 1207 2 (set (reg:DI 108 31)
        (reg:DI 9 9 [970])) test_fixed_containers.ii:171 540
{*movdi_internal64}
     (expr_list:REG_DEAD (reg:DI 9 9 [970])
        (nil)))
test_fixed_containers.ii:203:1: internal compiler error: in
extract_constrain_insn, at recog.c:2190