https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87762
Bug ID: 87762
Summary: extract_constrain_insn, at recog.c:2206 on s390x
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: marxin at gcc dot gnu.org
Target Milestone: ---
Host: x86_64-pc-linux-gnu
Target: s390x-linux-gnu
Following causes ICE:
$ s390x-linux-gnu-gcc
/home/marxin/Programming/gcc/gcc/testsuite/c-c++-common/pr59037.c -O
/home/marxin/Programming/gcc/gcc/testsuite/c-c++-common/pr59037.c: In function
‘main’:
/home/marxin/Programming/gcc/gcc/testsuite/c-c++-common/pr59037.c:12:1: error:
insn does not satisfy its constraints:
12 | }
| ^
(insn 17 9 14 2 (set (reg/f:DI 1 %r1 [65])
(plus:DI (unspec:DI [
(symbol_ref/u:DI ("*.LC0") [flags 0x2])
(reg:DI 5 %r5)
] UNSPEC_LTREF)
(const_int 16 [0x10])))
"/home/marxin/Programming/gcc/gcc/testsuite/c-c++-common/pr59037.c":12:1 1269
{*movdi_64}
(expr_list:REG_DEAD (reg:DI 5 %r5)
(expr_list:REG_EQUIV (const:DI (plus:DI (symbol_ref/u:DI ("*.LC0")
[flags 0x2])
(const_int 16 [0x10])))
(nil))))
during RTL pass: cprop_hardreg
/home/marxin/Programming/gcc/gcc/testsuite/c-c++-common/pr59037.c:12:1:
internal compiler error: in extract_constrain_insn, at recog.c:2206
0x55d382 _fatal_insn(char const*, rtx_def const*, char const*, int, char
const*)
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-s390x/build/gcc/rtl-error.c:108
0x55d3a8 _fatal_insn_not_found(rtx_def const*, char const*, int, char const*)
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-s390x/build/gcc/rtl-error.c:118
0x55c8ae extract_constrain_insn(rtx_insn*)
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-s390x/build/gcc/recog.c:2206
0x97b007 copyprop_hardreg_forward_1
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-s390x/build/gcc/regcprop.c:801
0x97bb74 execute
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-s390x/build/gcc/regcprop.c:1307
