[llvm] [IR] Add CallBr intrinsics support (PR #133907)

[Robert Imschweiler via llvm-commits]

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@@ -235,26 +235,26 @@ class IRTranslator : public MachineFunctionPass {
   bool translateStore(const User &U, MachineIRBuilder &MIRBuilder);
 
   /// Translate an LLVM string intrinsic (memcpy, memset, ...).
-  bool translateMemFunc(const CallInst &CI, MachineIRBuilder &MIRBuilder,
+  bool translateMemFunc(const CallBase &CI, MachineIRBuilder &MIRBuilder,
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ro-i wrote:

But doesn't it make the code easier to reason about? Because we only have one code path for call stuff without needing to distinguish?
Because we'd like to have translateCall / visitCall handle the underlying call for our callbr instruction, right? And if we adapt translateCall / visitCall to handle CallBase instead of CallInst, we either need to convert everything invoked by translateCall / visitCall from CallInst to CallBase (that's what I did) or we need to split stuff and/or insert more checks and conversions.
And it seems to me that the CallInst -> CallBase conversion does not really harm?

https://github.com/llvm/llvm-project/pull/133907