Rather than asserting. Dump out the MI that we are not able to encode and abort.

llvm-svn: 47933

1 files changed, 6 insertions, 1 deletions

diff --git a/llvm/lib/Target/X86/X86CodeEmitter.cpp b/llvm/lib/Target/X86/X86CodeEmitter.cpp
index 522891c7cd1..8fdf6a501f7 100644
--- a/llvm/lib/Target/X86/X86CodeEmitter.cpp
+++ b/llvm/lib/Target/X86/X86CodeEmitter.cpp
@@ -807,5 +807,10 @@ void Emitter::emitInstruction(const MachineInstr &MI,
     break;
   }
 
-  assert((Desc->isVariadic() || CurOp == NumOps) && "Unknown encoding!");
+  if (!Desc->isVariadic() && CurOp != NumOps) {
+    cerr << "Cannot encode: ";
+    MI.dump();
+    cerr << '\n';
+    abort();
+  }
 }