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.