[llvm-commits] [llvm-gcc-4.2] r42315 - /llvm-gcc-4.2/trunk/gcc/llvm-convert.cpp

[Duncan Sands]

Author: baldrick
Date: Tue Sep 25 15:12:14 2007
New Revision: 42315

URL: http://llvm.org/viewvc/llvm-project?rev=42315&view=rev
Log:
Handle scalar to aggregate VIEW_CONVERT_EXPR lvalue.

Modified:
    llvm-gcc-4.2/trunk/gcc/llvm-convert.cpp

Modified: llvm-gcc-4.2/trunk/gcc/llvm-convert.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm-gcc-4.2/trunk/gcc/llvm-convert.cpp?rev=42315&r1=42314&r2=42315&view=diff

==============================================================================
--- llvm-gcc-4.2/trunk/gcc/llvm-convert.cpp (original)
+++ llvm-gcc-4.2/trunk/gcc/llvm-convert.cpp Tue Sep 25 15:12:14 2007
@@ -5068,12 +5068,22 @@
 }
 
 LValue TreeToLLVM::EmitLV_VIEW_CONVERT_EXPR(tree exp) {
-  // The address is the address of the operand.
-  LValue LV = EmitLV(TREE_OPERAND(exp, 0));
-  // The type is the type of the expression.
-  const Type *Ty = ConvertType(TREE_TYPE(exp));
-  LV.Ptr = BitCastToType(LV.Ptr, PointerType::get(Ty));
-  return LV;
+  tree Op = TREE_OPERAND(exp, 0);
+
+  if (isAggregateTreeType(TREE_TYPE(Op))) {
+    // If the input is an aggregate, the address is the address of the operand.
+    LValue LV = EmitLV(Op);
+    // The type is the type of the expression.
+    LV.Ptr = BitCastToType(LV.Ptr, PointerType::get(ConvertType(TREE_TYPE(exp))));
+    return LV;
+  } else {
+    // If the input is a scalar, emit to a temporary.
+    Value *Dest = CreateTemporary(ConvertType(TREE_TYPE(Op)));
+    Builder.CreateStore(Emit(Op, 0), Dest);
+    // The type is the type of the expression.
+    Dest = BitCastToType(Dest, PointerType::get(ConvertType(TREE_TYPE(exp))));
+    return LValue(Dest);
+  }
 }
 
 LValue TreeToLLVM::EmitLV_EXC_PTR_EXPR(tree exp) {