wzssyqa added a comment. In D138179#3934543 <https://reviews.llvm.org/D138179#3934543>, @MaskRay wrote:
> Rubber stamp. I try to find some mips folks who can verify, so maybe wait a > day or so. > >> When we use llc or lld to compiler IR files, the features +nan2008 and >> +fpxx/+fp64 are not used. Thus wrong format files are produced. > > Not sure lld is related. It just consumes the bitcode input when using LTO. > Did you mean Clang? Any program call libllvm to convert IR to asm file or object is effected. the example is like this: example 1: clang -flto -mnan=2008 -O3 -target mipsel-linux-gnu -c test.c # the nan2008 attribute does set llc test.o # the nan2008 is not set in the output test.o.s example 2 clang -flto -mnan=2008 -O3 -target mipsel-linux-gnu -o a.out test.c # the output is not nan2008 object #due to clang doesn't pass -mllvm=-mattr=+nan2008 to lld. For example2: We can: 1. pass -mllvm=-mattr=+nan2008 to lld, while ld.bfd doesn't support it. 2. make lld/llvm can recognize the `attributes #0 = ` in IR files. Repository: rG LLVM Github Monorepo CHANGES SINCE LAST ACTION https://reviews.llvm.org/D138179/new/ https://reviews.llvm.org/D138179 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
