On Wed, 2018-12-19 at 22:01 -0500, David Malcolm wrote: > On Wed, 2018-12-19 at 17:27 -0600, Aaron Sawdey wrote: > > Assuming you applied this as svn 267273, it causes bootstrap > > failure > > on powerpc64le-unknown-linux-gnu. Stage 2 fails with multiple > > instances > > of this error: > > > > ../../trunk-base/gcc/c-family/c-pragma.c: In function ‘void > > handle_pragma_scalar_storage_order(cpp_reader*)’: > > ../../trunk-base/gcc/c-family/c-pragma.c:417:24: error: self- > > comparison always evaluates to false [-Werror=tautological-compare] > > 417 | if (BYTES_BIG_ENDIAN != WORDS_BIG_ENDIAN) > > | ^~ > > ../../trunk-base/gcc/c-family/c-attribs.c: In function ‘tree_node* > > handle_scalar_storage_order_attribute(tree_node**, tree, tree, int, > > bool*)’: > > ../../trunk-base/gcc/c-family/c-attribs.c:1401:24: error: self- > > comparison always evaluates to false [-Werror=tautological-compare] > > 1401 | if (BYTES_BIG_ENDIAN != WORDS_BIG_ENDIAN) > > | ^~ > > ../../trunk-base/gcc/builtins.c: In function ‘rtx_def* > > c_readstr(const char*, scalar_int_mode)’: > > ../../trunk-base/gcc/builtins.c:830:28: error: self-comparison > > always > > evaluates to false [-Werror=tautological-compare] > > 830 | if (BYTES_BIG_ENDIAN != WORDS_BIG_ENDIAN > > | ^~ > > ../../trunk-base/gcc/combine.c: In function ‘int > > rtx_equal_for_field_assignment_p(rtx, rtx, bool)’: > > ../../trunk-base/gcc/combine.c:9668:28: error: self-comparison > > always > > evaluates to false [-Werror=tautological-compare] > > 9668 | if (BYTES_BIG_ENDIAN != WORDS_BIG_ENDIAN) > > | ^~ > > > > Aaron > > Sorry about that. > > Does the following patch help? (testing in progress here) [...snip...]
According to comments within PR c++/87504, the patch fixes the bootstrap on aarch64, and fixes a similar issue on Solaris/SPARC. It also passed bootstrap®rtesting on x86_64-pc-linux-gnu. Given that, I've committed it to trunk as r267299. Aaron, does this fix the issue you saw? Thanks, and sorry again about the breakage. Dave
