TomTan added a comment. In D63617#1552561 <https://reviews.llvm.org/D63617#1552561>, @rnk wrote:
> I think it would be preferable to make `llvm.debugtrap` emit `brk #0xF000` on > aarch64-windows-*, so other frontends (Rust etc) get the right behavior by > default. Right now, AArch64 doesn't do anything special for DEBUGTRAP, so we > get the default behavior of `llvm.trap`. > > Is this `BRK #0xF000` convention universal to all OSs, or is it a specific > convention for Windows debuggers? I looked at `llvm.debugtrap` but I am not sure the side-effect of that fix, like could there be some other ABI (mingw, etc.) on Windows ARM64 which expects DEBUGTRAP to be the same as `Android/Linux`. I think this `BRK #0xF000` convention is only for Windows debugger and exception handler, such as we define `__fastfail` in the same way with different operand, not universal for all OSs. Repository: rC Clang CHANGES SINCE LAST ACTION https://reviews.llvm.org/D63617/new/ https://reviews.llvm.org/D63617 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
