[llvm-commits] [llvm] r50328 - /llvm/trunk/lib/VMCore/InlineAsm.cpp

[Chris Lattner]

Author: lattner
Date: Sun Apr 27 18:33:55 2008
New Revision: 50328

URL: http://llvm.org/viewvc/llvm-project?rev=50328&view=rev
Log:
Allow asms to return multiple results by value.

Modified:
    llvm/trunk/lib/VMCore/InlineAsm.cpp

Modified: llvm/trunk/lib/VMCore/InlineAsm.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/VMCore/InlineAsm.cpp?rev=50328&r1=50327&r2=50328&view=diff

==============================================================================
--- llvm/trunk/lib/VMCore/InlineAsm.cpp (original)
+++ llvm/trunk/lib/VMCore/InlineAsm.cpp Sun Apr 27 18:33:55 2008
@@ -202,11 +202,20 @@
       break;
     }
   }
-    
-  if (NumOutputs > 1) return false;  // Only one result allowed so far.
   
-  if ((Ty->getReturnType() != Type::VoidTy) != NumOutputs)
-    return false;   // NumOutputs = 1 iff has a result type.
+  switch (NumOutputs) {
+  case 0:
+    if (Ty->getReturnType() != Type::VoidTy) return false;
+    break;
+  case 1:
+    if (isa<StructType>(Ty->getReturnType())) return false;
+    break;
+  default:
+    const StructType *STy = dyn_cast<StructType>(Ty->getReturnType());
+    if (STy == 0 || STy->getNumElements() != NumOutputs)
+      return false;
+    break;
+  }      
   
   if (Ty->getNumParams() != NumInputs) return false;
   return true;