http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60909
Bug ID: 60909 Summary: ICE: in extract_insn, at recog.c:2202 (unrecognizable insn) with -mrdrnd and __builtin_ia32_rdrand32_step() Product: gcc Version: 4.10.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: target Assignee: unassigned at gcc dot gnu.org Reporter: zsojka at seznam dot cz Created attachment 32645 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=32645&action=edit reduced testcase Compiler output: $ gcc -mrdrnd testcase.c testcase.c: In function 'foo': testcase.c:8:1: error: unrecognizable insn: } ^ (insn 10 9 11 2 (set (mem/c:SI (plus:DI (reg/f:DI 78 virtual-stack-vars) (const_int -4 [0xfffffffffffffffc])) [0 i+0 S4 A32]) (if_then_else:SI (geu (reg:CCC 17 flags) (const_int 0 [0])) (reg:SI 83) (reg:SI 85))) testcase.c:6 -1 (nil)) testcase.c:8:1: internal compiler error: in extract_insn, at recog.c:2202 0xac2df8 _fatal_insn(char const*, rtx_def const*, char const*, int, char const*) /mnt/svn/gcc-trunk/gcc/rtl-error.c:109 0xac2e88 _fatal_insn_not_found(rtx_def const*, char const*, int, char const*) /mnt/svn/gcc-trunk/gcc/rtl-error.c:117 0xa788b6 extract_insn(rtx_def*) /mnt/svn/gcc-trunk/gcc/recog.c:2202 0x8d6557 instantiate_virtual_regs_in_insn /mnt/svn/gcc-trunk/gcc/function.c:1555 0x8d6557 instantiate_virtual_regs /mnt/svn/gcc-trunk/gcc/function.c:1921 0x8d6557 execute /mnt/svn/gcc-trunk/gcc/function.c:1972 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-209536-lto-fortran-checking-yes-rtl-df/libexec/gcc/x86_64-unknown-linux-gnu/4.10.0/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-209536-lto-fortran-checking-yes-rtl-df/ --without-cloog --without-ppl Thread model: posix gcc version 4.10.0 20140420 (experimental) (GCC) Tested revisions: r209536 - ICE 4.9 r209346 - ICE 4.8 r209342 - ICE 4.7 r209345 - ICE 4.6 r197894 - ICE 4.5.4 - -mrdrnd not supported