[PATCH] D45711: [WebAssembly] Add an assertion for an invalid CFG

[Heejin Ahn via Phabricator via llvm-commits]

This revision was automatically updated to reflect the committed changes.
Closed by commit rL330217: [WebAssembly] Add an assertion for an invalid CFG (authored by aheejin, committed by ).

Repository:
  rL LLVM

https://reviews.llvm.org/D45711

Files:
  llvm/trunk/lib/Target/WebAssembly/WebAssemblyCFGStackify.cpp


Index: llvm/trunk/lib/Target/WebAssembly/WebAssemblyCFGStackify.cpp
===================================================================
--- llvm/trunk/lib/Target/WebAssembly/WebAssemblyCFGStackify.cpp
+++ llvm/trunk/lib/Target/WebAssembly/WebAssemblyCFGStackify.cpp
@@ -145,6 +145,9 @@
            std::prev(InsertPos)->getOpcode() != WebAssembly::END_LOOP)
       --InsertPos;
   }
+  // The header block in which a 'block' mark will be inserted should have a
+  // terminator because it is branching to a non-layout successor.
+  assert(InsertPos != Header->end());
 
   // Add the BLOCK.
   MachineInstr *Begin =


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