>2011-09-26 Jakub Jelinek <ja...@redhat.com> > > * rtl.h (const_tiny_rtx): Change into array of 4 x MAX_MACHINE_MODE > from 3 x MAX_MACHINE_MODE. > (CONSTM1_RTX): Define. > * emit-rtl.c (const_tiny_rtx): Change into array of 4 x MAX_MACHINE_MODE > from 3 x MAX_MACHINE_MODE. > (gen_rtx_CONST_VECTOR): Use CONSTM1_RTX if all inner constants are > CONSTM1_RTX. > (init_emit_once): Initialize CONSTM1_RTX for MODE_INT and > MODE_VECTOR_INT modes. > * simplify-rtx.c (simplify_binary_operation_1) <case IOR, XOR, AND>: > Optimize if one operand is CONSTM1_RTX. > * config/i386/i386.c (ix86_expand_sse_movcc): Optimize mask ? -1 : x > into mask | x.
FYI - this patch (179238) breaks the Blackfin compiler build with an internal compiler error during configure of libgcc: conftest.c:1:0: internal compiler error: in gen_const_vector, at emit-rtl.c:5491 which is the: gcc_assert (const_tiny_rtx[constant][(int) inner]); gcc configured with: ../gcc-4.7/configure --build=x86_64-unknown-linux-gnu --host=x86_64-unknown-linux-gnu --target=bfin-elf --prefix=/home/shender/gnu/toolchain/bfin-elf --disable-libstdcxx-pch --enable-languages=c,c++ --with-newlib --enable-clocale=generic --disable-symvers --disable-libssp --disable-libffi --disable-libgcj --enable-version-specific-runtime-libs --enable-__cxa_atexit Stu
