[Bug rtl-optimization/72843] New: [7 Regression] internal compiler error: in lra_set_insn_recog_data, at lra.c:964

[hjl.tools at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=72843

            Bug ID: 72843
           Summary: [7 Regression] internal compiler error: in
                    lra_set_insn_recog_data, at lra.c:964
           Product: gcc
           Version: 6.1.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: rtl-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: hjl.tools at gmail dot com
                CC: vmakarov at redhat dot com
  Target Milestone: ---

On Linux/x86, when compiled with

-mtune=slm -O2 -march=i686 -msse2 -mfpmath=sse -m32

r239180 caused:

/export/gnu/import/git/gcc-regression/gcc/libquadmath/math/asinq.c: In function
‘asinq’:
/export/gnu/import/git/gcc-regression/gcc/libquadmath/math/asinq.c:254:1:
internal compiler error: in lra_set_insn_recog_data, at lra.c:964
 }
 ^
0x87ea563 lra_set_insn_recog_data(rtx_insn*)
        /export/gnu/import/git/gcc-regression/gcc/gcc/lra.c:962
0x87e8913 lra_get_insn_recog_data
        /export/gnu/import/git/gcc-regression/gcc/gcc/lra-int.h:487
0x87ebc17 lra_update_insn_regno_info(rtx_insn*)
        /export/gnu/import/git/gcc-regression/gcc/gcc/lra.c:1584
0x87ec0c0 lra_push_insn_1
        /export/gnu/import/git/gcc-regression/gcc/gcc/lra.c:1735
0x87ec0ef lra_push_insn(rtx_insn*)
        /export/gnu/import/git/gcc-regression/gcc/gcc/lra.c:1743
0x87ec1e4 push_insns
        /export/gnu/import/git/gcc-regression/gcc/gcc/lra.c:1786
0x87ec47b lra_process_new_insns(rtx_insn*, rtx_insn*, rtx_insn*, char const*)
        /export/gnu/import/git/gcc-regression/gcc/gcc/lra.c:1844
0x8804827 remove_inheritance_pseudos
        /export/gnu/import/git/gcc-regression/gcc/gcc/lra-constraints.c:6352
0x880578b lra_undo_inheritance()
        /export/gnu/import/git/gcc-regression/gcc/gcc/lra-constraints.c:6672
0x87ed6bf lra(_IO_FILE*)
        /export/gnu/import/git/gcc-regression/gcc/gcc/lra.c:2423
0x87a3db0 do_reload
        /export/gnu/import/git/gcc-regression/gcc/gcc/ira.c:5384
0x87a4200 execute
        /export/gnu/import/git/gcc-regression/gcc/gcc/ira.c:5568
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.