Fix X86/inline-asm.ll:test2, a case where an input value was implicitly

truncated.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28733 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
index 57f7446..0a9cb63 100644 (file)
--- a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
@@ -1804,9 +1804,12 @@ void RegsForValue::getCopyToRegs(SDOperand Val, SelectionDAG &DAG,
     // If there is a single register and the types differ, this must be
     // a promotion.
     if (RegVT != ValueVT) {
-      if (MVT::isInteger(RegVT))
-        Val = DAG.getNode(ISD::ANY_EXTEND, RegVT, Val);
-      else
+      if (MVT::isInteger(RegVT)) {
+        if (RegVT < ValueVT)
+          Val = DAG.getNode(ISD::TRUNCATE, RegVT, Val);
+        else
+          Val = DAG.getNode(ISD::ANY_EXTEND, RegVT, Val);
+      } else
         Val = DAG.getNode(ISD::FP_EXTEND, RegVT, Val);
     }
     Chain = DAG.getCopyToReg(Chain, Regs[0], Val, Flag);