craig.topper added a comment. I'm trying to catch up here. It looks like gcc has only started complaining about this from maybe version 7 on? And only as a warning?
The LLVM X86 backend used a 32-bit register for 'r' or 'R' on -m32 for 64-bit values. But the backend would fail for 'q' or 'Q' if the frontend check were not there. Weirdly the backend fails for double with 'Q' in 64-bit mode. But does not fail with 'q' or 'r' or 'R'. Repository: rG LLVM Github Monorepo CHANGES SINCE LAST ACTION https://reviews.llvm.org/D79804/new/ https://reviews.llvm.org/D79804 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits