Add truncate and AssertZext result expansion.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46926 91177308-0d34-0410-b5e6-96231b3b80d8
2025-09-24 23:28:41 +00:00 · 2008-02-10 10:08:52 +00:00
parent a900d17580
commit d885dbdf9e
3 changed files with 33 additions and 0 deletions
--- a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
@@ -2018,6 +2018,7 @@ SDOperand SelectionDAG::getNode(unsigned Opcode, MVT::ValueType VT,
           "Cannot *_EXTEND_INREG FP types");
    assert(MVT::getSizeInBits(EVT) <= MVT::getSizeInBits(VT) &&
           "Not extending!");
+    if (VT == EVT) return N1; // noop assertion.
    break;
  }
  case ISD::SIGN_EXTEND_INREG: {