rnk added a comment. I see, thanks for the info. Can you please add a targeted LLVM test for long double arguments? From what I can tell, the auto-generated update_llc_test_checks.py style tests are not a good fit for testing parameter passing because they pattern-match away the stack offsets which are relevant to the test.
I think it's also worth breaking this into LLVM and clang-side patches: 1. make clang emit x86_fp80 with -mlong-double-80 2. update LLVM datalayout (must affect clang via clang/lib/Basic/Targets/X86.h) to align fp80 to 16 bytes in the MSVC environment Repository: rG LLVM Github Monorepo CHANGES SINCE LAST ACTION https://reviews.llvm.org/D115441/new/ https://reviews.llvm.org/D115441 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
