https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94494
--- Comment #2 from Abrahm Scully <abrahm.scully at gmail dot com> --- Created attachment 48255 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=48255&action=edit preprocessed source file With gcc-10-20200329, "g++ -Wall -ftree-vectorize -march=pentium3 -O2 -m32 -c illegal-insn.cpp.ii -o illegal-insn.cpp.o" prints the following: illegal-insn.cpp: In function 'void illegal_insn(float*, float*, float*, int, int, int, int, int)': illegal-insn.cpp:16:1: error: unrecognizable insn: 16 | } | ^ (insn 80 79 81 13 (set (reg:V1TI 144) (lshiftrt:V1TI (subreg:V1TI (reg:V4SI 113 [ vect_found_18.20 ]) 0) (const_int 64 [0x40]))) -1 (nil)) during RTL pass: vregs illegal-insn.cpp:16:1: internal compiler error: in extract_insn, at recog.c:2294 Please submit a full bug report, with preprocessed source if appropriate. See <https://gcc.gnu.org/bugs/> for instructions.
