What version of Clang are you using? I cannot tell from the Travis config. I cannot reproduce this with -Wall -Wextra with any of the Clangs I happen to have on hand (3.8.0, 4.0.1, 5.0.0).
> On 1 Apr 2018, at 12:00, via cfe-users <cfe-users@lists.llvm.org> wrote: > > Send cfe-users mailing list submissions to > cfe-users@lists.llvm.org > > To subscribe or unsubscribe via the World Wide Web, visit > http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-users > or, via email, send a message with subject or body 'help' to > cfe-users-requ...@lists.llvm.org > > You can reach the person managing the list at > cfe-users-ow...@lists.llvm.org > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of cfe-users digest..." > > > Today's Topics: > > 1. Problems with hexadecimal constant, _mm_set_epi64x and sign > conversion (Jeffrey Walton via cfe-users) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Sat, 31 Mar 2018 23:51:22 -0400 > From: Jeffrey Walton via cfe-users <cfe-users@lists.llvm.org> > To: "CFE-Users (Clang)" <cfe-users@lists.llvm.org> > Subject: [cfe-users] Problems with hexadecimal constant, > _mm_set_epi64x and sign conversion > Message-ID: > <cah8yc8k8dlaranj9z9ghndjx-dctafwhqz4gyt42daymbub...@mail.gmail.com> > Content-Type: text/plain; charset="UTF-8" > > I'm having trouble with Travis during testing. The failed test is > available at https://travis-ci.org/Tarsnap/scrypt/jobs/360781179. > > Clang has rejected my attempts to use the constant (no suffix, ULL and LL): > > MSG = _mm_add_epi32(MSG0, _mm_set_epi64x(0xE9B5DBA5B5C0FBCF, > 0x71374491428A2F98)); > > MSG = _mm_add_epi32(MSG0, _mm_set_epi64x(0xE9B5DBA5B5C0FBCFULL, > 0x71374491428A2F98ULL)); > > MSG = _mm_add_epi32(MSG0, _mm_set_epi64x(0xE9B5DBA5B5C0FBCFLL, > 0x71374491428A2F98LL)); > > The message the compiler provides is: > > crypto_sha256_shani.c:50:44: error: implicit conversion changes > signedness: 'unsigned long' to 'long long' [-Werror,-Wsign-conversion] > > The code came from Intel and I doubt it is defective. > > How do I trick Clang to accept the hexadecimal value? > > Thanks in advance. > > > ------------------------------ > > Subject: Digest Footer > > _______________________________________________ > cfe-users mailing list > cfe-users@lists.llvm.org > http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-users > > > ------------------------------ > > End of cfe-users Digest, Vol 63, Issue 1 > **************************************** _______________________________________________ cfe-users mailing list cfe-users@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-users
