[Bug target/59034] New: [4.9 Regression] FAIL gcc.c-torture/compile/20031208-1.c

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59034

            Bug ID: 59034
           Summary: [4.9 Regression] FAIL
                    gcc.c-torture/compile/20031208-1.c
           Product: gcc
           Version: 4.9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: hjl.tools at gmail dot com
                CC: ubizjak at gmail dot com

On x86-64, r203247 gave

# ./xgcc -B./ -fno-diagnostics-show-caret -fdiagnostics-color=never -O1 -w -S
/export/gnu/import/git/gcc/gcc/testsuite/gcc.c-torture/compile/20031208-1.c
-march=corei7 -mx32
/export/gnu/import/git/gcc/gcc/testsuite/gcc.c-torture/compile/20031208-1.c: In
function ‘bar’:
/export/gnu/import/git/gcc/gcc/testsuite/gcc.c-torture/compile/20031208-1.c:6:1:
internal compiler error: in plus_constant, at explow.c:86
0x7a4cf2 plus_constant(machine_mode, rtx_def*, long)
    /export/gnu/import/git/gcc/gcc/explow.c:86
0x113757d record_store
    /export/gnu/import/git/gcc/gcc/dse.c:1547
0x1139fec scan_insn
    /export/gnu/import/git/gcc/gcc/dse.c:2620
0x113a34a dse_step1
    /export/gnu/import/git/gcc/gcc/dse.c:2735
0x113c4bc rest_of_handle_dse
    /export/gnu/import/git/gcc/gcc/dse.c:3697
0x113c6ba execute
    /export/gnu/import/git/gcc/gcc/dse.c:3797
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.

It may be latent before and shows up with x86 tuning change in
r203171/r203172.