[Bug target/86681] New: ICE in extract_insn, at recog.c:2304 on s390x

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86681

            Bug ID: 86681
           Summary: ICE in extract_insn, at recog.c:2304 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
                CC: krebbel at gcc dot gnu.org, uweigand at de dot ibm.com
  Target Milestone: ---

Following ICEs:

$ s390x-linux-gnu-gcc
/home/marxin/Programming/gcc/gcc/testsuite/gcc.target/s390/target-attribute/tattr-1.c 
/home/marxin/Programming/gcc/gcc/testsuite/gcc.target/s390/target-attribute/tattr-1.c:9:1:
warning: target attribute is not supported on this machine [-Wattributes]
 {
 ^
/home/marxin/Programming/gcc/gcc/testsuite/gcc.target/s390/target-attribute/tattr-1.c:15:1:
warning: target attribute is not supported on this machine [-Wattributes]
 {
 ^
/home/marxin/Programming/gcc/gcc/testsuite/gcc.target/s390/target-attribute/tattr-1.c:
In function ‘htm1’:
/home/marxin/Programming/gcc/gcc/testsuite/gcc.target/s390/target-attribute/tattr-1.c:11:1:
error: unrecognizable insn:
 }
 ^
(insn 5 2 6 2 (set (reg:CCRAW 33 %cc)
        (unspec_volatile:CCRAW [
                (const_int 0 [0])
            ] UNSPECV_TEND))
"/home/marxin/Programming/gcc/gcc/testsuite/gcc.target/s390/target-attribute/tattr-1.c":10
-1
     (nil))
during RTL pass: vregs
/home/marxin/Programming/gcc/gcc/testsuite/gcc.target/s390/target-attribute/tattr-1.c:11:1:
internal compiler error: in extract_insn, at recog.c:2304
0x54d4e9 _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
0x54d505 _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:116
0x54ca0e extract_insn(rtx_insn*)
       
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-s390x/build/gcc/recog.c:2304
0x78699f instantiate_virtual_regs_in_insn
       
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-s390x/build/gcc/function.c:1605
0x78699f instantiate_virtual_regs
       
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-s390x/build/gcc/function.c:1975
0x78699f execute
       
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-s390x/build/gcc/function.c:2024

verbose options:
 /dev/shm/buildbot/install/gcc/libexec/gcc/s390x-linux-gnu/9.0.0/cc1 -quiet -v
/home/marxin/Programming/gcc/gcc/testsuite/gcc.target/s390/zvector/vec-lcbb-1.c
-quiet -dumpbase vec-lcbb-1.c -m64 -mzarch -march=z900 -auxbase vec-lcbb-1 -O3
-version -o /tmp/ccjNz5Pq.s