http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60541
Bug ID: 60541 Summary: [4.9 Regression] ICE: in final_scan_insn, at final.c:2952: could not split insn with -march=barcelona Product: gcc Version: 4.9.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: target Assignee: unassigned at gcc dot gnu.org Reporter: zsojka at seznam dot cz Created attachment 32360 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=32360&action=edit reduced testcase Compiler output: $ gcc -march=barcelona testcase.c testcase.c: In function 'foo': testcase.c:4:1: error: could not split insn } ^ (insn 7 4 8 2 (parallel [ (set (reg:DF 21 xmm0 [orig:83 D.1796 ] [83]) (float:DF (mem/c:DI (plus:DI (reg/f:DI 6 bp) (const_int -8 [0xfffffffffffffff8])) [0 a+0 S8 A64]))) (clobber (mem/c:DI (plus:DI (reg/f:DI 6 bp) (const_int -24 [0xffffffffffffffe8])) [0 S8 A64])) ]) testcase.c:3 219 {*floatdidf2_sse_with_temp} (nil)) testcase.c:4:1: internal compiler error: in final_scan_insn, at final.c:2952 0xac1248 _fatal_insn(char const*, rtx_def const*, char const*, int, char const*) /mnt/svn/gcc-trunk/gcc/rtl-error.c:109 0x871bf4 final_scan_insn(rtx_def*, _IO_FILE*, int, int, int*) /mnt/svn/gcc-trunk/gcc/final.c:2952 0x872a9d final(rtx_def*, _IO_FILE*, int) /mnt/svn/gcc-trunk/gcc/final.c:2023 0x872fae rest_of_handle_final /mnt/svn/gcc-trunk/gcc/final.c:4427 0x872fae execute /mnt/svn/gcc-trunk/gcc/final.c:4502 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. $ gcc -v Using built-in specs. COLLECT_GCC=/mnt/svn/gcc-trunk/binary-latest/bin/gcc COLLECT_LTO_WRAPPER=/mnt/svn/gcc-trunk/binary-208561-lto-fortran-checking-yes-rtl-df/libexec/gcc/x86_64-unknown-linux-gnu/4.9.0/lto-wrapper Target: x86_64-unknown-linux-gnu Configured with: /mnt/svn/gcc-trunk//configure --enable-checking=yes,rtl,df --enable-languages=c,c++,lto,fortran --prefix=/mnt/svn/gcc-trunk/binary-208561-lto-fortran-checking-yes-rtl-df/ --without-cloog --without-ppl Thread model: posix gcc version 4.9.0 20140314 (experimental) (GCC)