[llvm-commits] [llvm-gcc-4.2] r43297 - /llvm-gcc-4.2/trunk/gcc/llvm-types.cpp

[Dale Johannesen]

Author: johannes
Date: Wed Oct 24 12:06:02 2007
New Revision: 43297

URL: http://llvm.org/viewvc/llvm-project?rev=43297&view=rev
Log:
Mark the sret bit correctly for functions defined
with empty parameter list (treated as "K&R" style
internally, although it's equally valid and
semantically identical in ANSI for definitions.)
gcc.c-torture/execute/20020920-1.c


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

Modified: llvm-gcc-4.2/trunk/gcc/llvm-types.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm-gcc-4.2/trunk/gcc/llvm-types.cpp?rev=43297&r1=43296&r2=43297&view=diff

==============================================================================
--- llvm-gcc-4.2/trunk/gcc/llvm-types.cpp (original)
+++ llvm-gcc-4.2/trunk/gcc/llvm-types.cpp Wed Oct 24 12:06:02 2007
@@ -971,6 +971,12 @@
   
   ABIConverter.HandleReturnType(ReturnType);
 
+  // If this is a struct-return function, the dest loc is passed in as a
+  // pointer.  Mark that pointer as structret.
+  ParamAttrsVector Attrs;
+  if (ABIConverter.isStructReturn())
+    Attrs.push_back(ParamAttrsWithIndex::get(ArgTys.size(),
+                                             ParamAttr::StructRet));
   if (static_chain)
     // Pass the static chain as the first parameter.
     ABIConverter.HandleArgument(TREE_TYPE(static_chain));
@@ -978,7 +984,11 @@
   for (; Args && TREE_TYPE(Args) != void_type_node; Args = TREE_CHAIN(Args))
     ABIConverter.HandleArgument(TREE_TYPE(Args));
 
-  return GetFunctionType(RetTy, ArgTys, false, 0);
+  ParamAttrsList *PAL = 0;
+  if (!Attrs.empty())
+    PAL = ParamAttrsList::get(Attrs);
+
+  return GetFunctionType(RetTy, ArgTys, false, PAL);
 }
 
 const FunctionType *TypeConverter::ConvertFunctionType(tree type,