[PATCH] D140160: [llvm][SelectionDAGBuilder] codegen callbr.landingpad intrinsic

[Nick Desaulniers via Phabricator via llvm-commits]

nickdesaulniers added inline comments.


================
Comment at: llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp:11680
+
+    SDValue V = DAG.getCopyFromReg(Chain, getCurSDLoc(), Output, ResultVTs[i]);
+    ResultValues.push_back(V);
----------------
Another issue I'm hitting in real world kernel code is that this MVT is potentially not legal.

```
void strncpy_from_kernel_nofault_count() {
  asm goto("" : "=r"(*(char *)0) : : : Efault);
Efault:
}
```
when target powerpc64le-linux-gnu, the MVT here is i8, but the first legal MVT for the constraint's register class is i32.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D140160/new/

https://reviews.llvm.org/D140160