tidy up.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102558 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
index 4dc106eda7399a106dda194475df80542f4e9d91..43e6b1bc8a463ae40b4e39e3cddd70650cb10e10 100644 (file)
--- a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
@@ -3814,14 +3814,8 @@ SelectionDAGBuilder::visitIntrinsicCall(const CallInst &I, unsigned Intrinsic) {
 
     MDNode *Variable = DI.getVariable();
     // Parameters are handled specially.
-    bool isParameter = false;
-    ConstantInt *CI = dyn_cast_or_null<ConstantInt>(Variable->getOperand(0));
-    if (CI) {
-      unsigned Val = CI->getZExtValue();
-      unsigned Tag = Val & ~LLVMDebugVersionMask;
-      if (Tag == dwarf::DW_TAG_arg_variable)
-        isParameter = true;
-    }
+    bool isParameter = 
+      DIVariable(Variable).getTag() == dwarf::DW_TAG_arg_variable;
     const Value *Address = DI.getAddress();
     if (!Address)
       return 0;