https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113652
--- Comment #3 from Erhard F. <erhard_f at mailbox dot org> --- (In reply to Christopher Fore from comment #0) > Created attachment 57251 [details] > original preprocessed file > > Steps to reproduce: > 1. Attempt to build GCC 14 (latest snapshot attempted is Gentoo's 20240128) > 2. Fails to assemble with: > /tmp/ccP8ev2f.s: Assembler messages: > /tmp/ccP8ev2f.s:85: Error: unrecognized opcode: `lfiwzx' > > Originally reported downstream at: https://bugs.gentoo.org/921621 > > Command to reproduce: > gcc -mcpu=7450 -O1 -mvsx -c _kf_to_sd.i I did the Gentoo downstream bugreport where I tried to build GCC 14 with GCC 11 + binutils 2.41. Building was done on a 32 bit partition on my Talos II via 'setarch ppc32 emerge -1 gcc'. As the PowerPC 7450 (aka PowerPC G4) is only capable of -maltivec but not -mvsx I only passed "-O2 -mcpu=7450 -mtune=7450" as CFLAGS. Still my GCC 14 build spills this "unrecognized opcode: `lfiwzx'" which is a Power ISA 2.06 (POWER 7) opcode. GCC 11 builds fine on the same system.
