https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69847
--- Comment #23 from Vladimir Makarov <vmakarov at gcc dot gnu.org> --- (In reply to mwahab from comment #22) > I believe that this patch is the cause of compilation failures for a number > of tests on arm-none-linux-gnueabihf and arm-none-eabi. > > E.g. arm-none-linux-gnueabihf-gcc -S testsuite/gcc.dg/torture/vshuf-v64qi.c > -O1 > results in an ICE with > ---- > testsuite/gcc.dg/torture/vshuf-main.inc: In function ‘test_2’: > testsuite/gcc.dg/torture/vshuf-main.inc:28:1: error: insn does not satisfy > its constraints: > TESTS > ^~~~~ > (insn 606 607 589 2 (set (reg:QI 3 r3 [326]) > (reg:QI 31 s15)) testsuite/gcc.dg/torture/vshuf-main.inc:28 182 > {*arm_movqi_insn} > (expr_list:REG_EQUAL (const_int 13 [0xd]) > (nil))) > testsuite/gcc.dg/torture/vshuf-main.inc:28:1: internal compiler error: in > extract_constrain_insn, at recog.c:2211 > 0xaea3e8 _fatal_insn(char const*, rtx_def const*, char const*, int, char > const*) > /work/src/gnutools/armdsg/src/gcc/gcc/rtl-error.c:108 > 0xaea40f _fatal_insn_not_found(rtx_def const*, char const*, int, char const*) > /work/src/gnutools/armdsg/src/gcc/gcc/rtl-error.c:119 > 0xabcf1d extract_constrain_insn(rtx_insn*) > /work/src/gnutools/armdsg/src/gcc/gcc/recog.c:2211 > 0x9d76af check_rtl > /work/src/gnutools/armdsg/src/gcc/gcc/lra.c:2108 > 0x9dbfa9 lra(_IO_FILE*) > /work/src/gnutools/armdsg/src/gcc/gcc/lra.c:2516 > 0x99106f do_reload > /work/src/gnutools/armdsg/src/gcc/gcc/ira.c:5384 > 0x99106f execute > /work/src/gnutools/armdsg/src/gcc/gcc/ira.c:5568 > ---- > > The test compiles with trunk before the change. > > Let me know if there's anything else I should check. I tried to reproduce it on my arm board (armv7l-unknown-linux-gnueabihf) and using cross-compiler arm-non-eabi without any success. Could you provide a preprocessed source file with all *cc1* options for arm-non-eabi. Thank you.