[PATCH] D105946: [PowerPC] Store, load, move from and to registers related builtins

[Nemanja Ivanovic via Phabricator via llvm-commits]

nemanjai requested changes to this revision.
nemanjai added a comment.
This revision now requires changes to proceed.

We have encountered an issue with `lwarx/ldarx` that required that they emit inline asm rather than an intrinsic. What makes `lbarx/lharx` different?



================
Comment at: clang/lib/Sema/SemaChecking.cpp:3370
+  case PPC::BI__builtin_ppc_lbarx:
+    return SemaFeatureCheck(*this, TheCall, "extdiv",
+                            diag::err_ppc_builtin_only_on_arch, "8");
----------------
Why do these need the `extdiv` feature?


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https://reviews.llvm.org/D105946