[cfe-commits] r44521 - in /cfe/trunk: CodeGen/CGBuiltin.cpp include/clang/AST/Builtins.def

[Anders Carlsson]

Author: andersca
Date: Sun Dec  2 15:58:10 2007
New Revision: 44521

URL: http://llvm.org/viewvc/llvm-project?rev=44521&view=rev
Log:
Implement __builtin_bswap32 and __builtin_bswap64.

Modified:
    cfe/trunk/CodeGen/CGBuiltin.cpp
    cfe/trunk/include/clang/AST/Builtins.def

Modified: cfe/trunk/CodeGen/CGBuiltin.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/CodeGen/CGBuiltin.cpp?rev=44521&r1=44520&r2=44521&view=diff

==============================================================================
--- cfe/trunk/CodeGen/CGBuiltin.cpp (original)
+++ cfe/trunk/CodeGen/CGBuiltin.cpp Sun Dec  2 15:58:10 2007
@@ -100,6 +100,18 @@
     llvm::Value *Condition = EmitScalarExpr(E->getArg(0));   
     return RValue::get(Condition);
   }
+  case Builtin::BI__builtin_bswap32:
+  case Builtin::BI__builtin_bswap64: {
+    llvm::Value *ArgValue = EmitScalarExpr(E->getArg(0));
+    const llvm::Type *ArgType = ArgValue->getType();
+    llvm::Value *F = 
+      llvm::Intrinsic::getDeclaration(&CGM.getModule(), 
+                                      llvm::Intrinsic::bswap,
+                                      &ArgType, 1);
+    llvm::Value *V = Builder.CreateCall(F, ArgValue, "tmp");
+      
+    return RValue::get(V);      
+  }
   }
   
   return RValue::get(0);

Modified: cfe/trunk/include/clang/AST/Builtins.def
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/AST/Builtins.def?rev=44521&r1=44520&r2=44521&view=diff

==============================================================================
--- cfe/trunk/include/clang/AST/Builtins.def (original)
+++ cfe/trunk/include/clang/AST/Builtins.def Sun Dec  2 15:58:10 2007
@@ -74,6 +74,8 @@
 
 
 // Random GCC builtins
+BUILTIN(__builtin_bswap32, "UiUi", "nc")
+BUILTIN(__builtin_bswap64, "ULLiULLi", "nc")
 BUILTIN(__builtin_constant_p, "UsUs", "nc")
 BUILTIN(__builtin_classify_type, "i.", "nc")
 BUILTIN(__builtin___CFStringMakeConstantString, "FC*cC*", "nc")