2010-04-12 Kai Tietz <kai.tietz@onevision.com>

[pf3gnuchains/gcc-fork.git] / gcc / config / i386 / i386.c

diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index 2c6a09c..b99fe2a 100644 (file)
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -26232,11 +26232,13 @@ x86_this_parameter (tree function)
 
       if (lookup_attribute ("fastcall", TYPE_ATTRIBUTES (type)))
        regno = aggr ? DX_REG : CX_REG;
-      /* ???: To be verified. It is not absolutely clear how aggregates
-         have to be treated for thiscall.  We assume that they are
-        identical to fastcall.  */
       else if (lookup_attribute ("thiscall", TYPE_ATTRIBUTES (type)))
-       regno = aggr ? DX_REG : CX_REG;
+        {
+         regno = CX_REG;
+         if (aggr)
+           return gen_rtx_MEM (SImode,
+                               plus_constant (stack_pointer_rtx, 4));
+       }
       else
         {
          regno = AX_REG;