Parameter attributes on invoke calls were being lost due to the wrong

attribute index being used.  Fix proposed by Anton Korobeynikov, who
asked me to implement and commit it for him.  This is PR1398.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36906 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
index cdaf191cf18b4806ed1ccb2299fa8ad5b67f748f..b70366357d931c37ebcf86a8c9c4eb2d4ea1389d 100644 (file)
--- a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
@@ -2787,10 +2787,12 @@ void SelectionDAGLowering::LowerCallTo(Instruction &I,
     Value *Arg = I.getOperand(i);
     SDOperand ArgNode = getValue(Arg);
     Entry.Node = ArgNode; Entry.Ty = Arg->getType();
-    Entry.isSExt   = Attrs && Attrs->paramHasAttr(i, ParamAttr::SExt);
-    Entry.isZExt   = Attrs && Attrs->paramHasAttr(i, ParamAttr::ZExt);
-    Entry.isInReg  = Attrs && Attrs->paramHasAttr(i, ParamAttr::InReg);
-    Entry.isSRet   = Attrs && Attrs->paramHasAttr(i, ParamAttr::StructRet);
+
+    unsigned attrInd = i - OpIdx + 1;
+    Entry.isSExt  = Attrs && Attrs->paramHasAttr(attrInd, ParamAttr::SExt);
+    Entry.isZExt  = Attrs && Attrs->paramHasAttr(attrInd, ParamAttr::ZExt);
+    Entry.isInReg = Attrs && Attrs->paramHasAttr(attrInd, ParamAttr::InReg);
+    Entry.isSRet  = Attrs && Attrs->paramHasAttr(attrInd, ParamAttr::StructRet);
     Args.push_back(Entry);
   }