[llvm-commits] [llvm] r49109 - /llvm/trunk/lib/Target/CBackend/CBackend.cpp

[Dan Gohman]

Author: djg
Date: Wed Apr  2 14:40:14 2008
New Revision: 49109

URL: http://llvm.org/viewvc/llvm-project?rev=49109&view=rev
Log:
Partial CBackend support for 128-bit integers. This is needed
now that llvm-gcc is lowering appropriately-sized struct returns
to i128 on x86-64.

Modified:
    llvm/trunk/lib/Target/CBackend/CBackend.cpp

Modified: llvm/trunk/lib/Target/CBackend/CBackend.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/CBackend/CBackend.cpp?rev=49109&r1=49108&r2=49109&view=diff

==============================================================================
--- llvm/trunk/lib/Target/CBackend/CBackend.cpp (original)
+++ llvm/trunk/lib/Target/CBackend/CBackend.cpp Wed Apr  2 14:40:14 2008
@@ -445,9 +445,11 @@
       return Out << (isSigned?"signed":"unsigned") << " short " << NameSoFar;
     else if (NumBits <= 32)
       return Out << (isSigned?"signed":"unsigned") << " int " << NameSoFar;
-    else { 
-      assert(NumBits <= 64 && "Bit widths > 64 not implemented yet");
+    else if (NumBits <= 64)
       return Out << (isSigned?"signed":"unsigned") << " long long "<< NameSoFar;
+    else { 
+      assert(NumBits <= 128 && "Bit widths > 128 not implemented yet");
+      return Out << (isSigned?"llvmInt128":"llvmUInt128") << " " << NameSoFar;
     }
   }
   case Type::FloatTyID:  return Out << "float "   << NameSoFar;
@@ -1478,6 +1480,11 @@
       << "#define __builtin_stack_restore(X) /* noop */\n"
       << "#endif\n\n";
 
+  Out << "#ifdef __GNUC__ /* 128-bit integer types */\n"
+      << "typedef int __attribute__((mode(TI))) llvmInt128;\n"
+      << "typedef unsigned __attribute__((mode(TI))) llvmUInt128;\n"
+      << "#endif\n\n";
+
   // Output target-specific code that should be inserted into main.
   Out << "#define CODE_FOR_MAIN() /* Any target-specific code for main()*/\n";
 }