hctim added a comment. In D82249#2110010 <https://reviews.llvm.org/D82249#2110010>, @arsenm wrote:
> I don't follow. It no longer falls back, so what is the problem? HWASan-globals end up with an address that's outside of the code model (due to the tag), so the normal instruction sequence of `adrp + mov` or `adrp + ldr/str (with folded imm)` isn't adequate. In SelectionDAGISel, we emit a `movk` as well after the `adrp` to capture the top 16 bits. We need to do the same for GlobalISel. This is a temporary workaround to fix HWASan at `-O0` while I go and add support for adding the tagged-address lowering in GlobalISel. Repository: rG LLVM Github Monorepo CHANGES SINCE LAST ACTION https://reviews.llvm.org/D82249/new/ https://reviews.llvm.org/D82249 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
