[llvm-branch-commits] [clang] release/19.x: [SystemZ] Fix codegen for _[u]128 intrinsics (PR #111376)

[Ulrich Weigand via llvm-branch-commits]

uweigand wrote:

> @uweigand (or anyone else). If you would like to add a note about this fix in the release notes (completely optional). Please reply to this comment with a one or two sentence description of the fix. When you are done, please add the release:note label to this PR.

Fix a regression introduced with the LLVM 18 release, which caused incorrect code to be generated by the following SystemZ vector intrinsics: vec_add_u128, vec_addc_u128, vec_adde_u128, vec_addec_u128, vec_sub_u128, vec_subc_u128, vec_sube_u128, vec_subec_u128, vec_sum_u128, vec_msum_u128, vec_gfmsum_128, vec_gfmsum_accum_128.


https://github.com/llvm/llvm-project/pull/111376