[PATCH] D44090: [WebAssembly] Support instruction selection for catching exceptions

[Derek Schuff via Phabricator via llvm-commits]

dschuff accepted this revision.
dschuff added a comment.
This revision is now accepted and ready to land.

Otherwise LGTM



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Comment at: lib/Target/WebAssembly/WebAssemblyRegisterInfo.h:48
                      unsigned Kind = 0) const override;
+  const uint32_t *getNoPreservedMask() const override { return nullptr; }
 };
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aheejin wrote:
> This was needed to prevent assertions from [[ https://github.com/llvm-mirror/llvm/blob/5365e8b41893d044805a280c862c6a9a8732f3cc/lib/CodeGen/MachineBasicBlock.cpp#L1426-L1438 | these functions ]].
There should be a comment about that here, since the mask is something that shouldn't apply to wasm.


Repository:
  rL LLVM

https://reviews.llvm.org/D44090