[llvm] CodeGen: replace assertions with explicit errors for landinpad lowering (PR #71287)

[Matt Arsenault via llvm-commits]

================
@@ -3166,7 +3166,9 @@ void SelectionDAGBuilder::visitLandingPad(const LandingPadInst &LP) {
   SmallVector<EVT, 2> ValueVTs;
   SDLoc dl = getCurSDLoc();
   ComputeValueVTs(TLI, DAG.getDataLayout(), LP.getType(), ValueVTs);
-  assert(ValueVTs.size() == 2 && "Only two-valued landingpads are supported");
+  if (ValueVTs.size() != 2) {
+    report_fatal_error("Only two-valued landingpads are supported");
+  }
----------------
arsenm wrote:

The verifier should enforce this, not fatal error in codegen 

https://github.com/llvm/llvm-project/pull/71287