[llvm-commits] [llvm-gcc-4.2] r52154 - /llvm-gcc-4.2/trunk/gcc/config/i386/llvm-i386.cpp

[Dale Johannesen]

Author: johannes
Date: Mon Jun  9 15:56:58 2008
New Revision: 52154

URL: http://llvm.org/viewvc/llvm-project?rev=52154&view=rev
Log:
x86-64 ABI.  Handle 16-byte struct where 2nd word
is padding as a return value.  Fixes c++/t025.


Modified:
    llvm-gcc-4.2/trunk/gcc/config/i386/llvm-i386.cpp

Modified: llvm-gcc-4.2/trunk/gcc/config/i386/llvm-i386.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm-gcc-4.2/trunk/gcc/config/i386/llvm-i386.cpp?rev=52154&r1=52153&r2=52154&view=diff

==============================================================================
--- llvm-gcc-4.2/trunk/gcc/config/i386/llvm-i386.cpp (original)
+++ llvm-gcc-4.2/trunk/gcc/config/i386/llvm-i386.cpp Mon Jun  9 15:56:58 2008
@@ -1035,6 +1035,7 @@
       //                                         <2 x i64>, or <2 x f64>.
       // 4. 1 x SSE + 1 x SSESF, size is 12: 1 x Double, 1 x Float.
       // 5. 2 x SSE, size is 16: 2 x Double.
+      // 6. 1 x SSE, 1 x NO:  Second is padding, pass as double.
       if ((NumClasses-i) == 1) {
         if (Bytes == 8) {
           Elts.push_back(Type::DoubleTy);
@@ -1088,8 +1089,12 @@
         } else if (Class[i+1] == X86_64_INTEGER_CLASS) {
           Elts.push_back(VectorType::get(Type::FloatTy, 2));
           Elts.push_back(Type::Int64Ty);
-        } else
+        } else if (Class[i+1] == X86_64_NO_CLASS) {
+          Elts.push_back(Type::DoubleTy);
+          Bytes -= 16;
+        } else {
           assert(0 && "Not yet handled!");
+        }
         ++i; // Already handled the next one.
       } else
         assert(0 && "Not yet handled!");