commit 18bb39ebd299a2e65bad0ef08f5d24b667ec99bf
author Eli Friedman <eli.friedman@gmail.com> Mon May 19 23:27:48 2008 +0000
committer Eli Friedman <eli.friedman@gmail.com> Mon May 19 23:27:48 2008 +0000
tree 5ca08872d00fad81c462bdfd01ea538044b36f2d
parent d09515f9f207c2e3a7515eea94d53d76c9868e97

Implement CodeGen for __builtin_memcpy.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51282 91177308-0d34-0410-b5e6-96231b3b80d8

lib/CodeGen/CGBuiltin.cpp

diff --git a/lib/CodeGen/CGBuiltin.cpp b/lib/CodeGen/CGBuiltin.cpp
index d15780a..e29a174 100644
--- a/lib/CodeGen/CGBuiltin.cpp
+++ b/lib/CodeGen/CGBuiltin.cpp
@@ -252,6 +252,16 @@
     return RValue::get(Builder.CreateAlloca(llvm::Type::Int8Ty,
                                             EmitScalarExpr(E->getArg(0)),
                                             "tmp"));
+  case Builtin::BI__builtin_memcpy: {
+    Value* MemCpyOps[4] = {
+      EmitScalarExpr(E->getArg(0)),
+      EmitScalarExpr(E->getArg(1)),
+      EmitScalarExpr(E->getArg(2)),
+      llvm::ConstantInt::get(llvm::Type::Int32Ty, 0)
+    };
+    Builder.CreateCall(CGM.getMemCpyFn(), MemCpyOps, MemCpyOps+4);
+    return RValue::get(MemCpyOps[0]);
+  }
   case Builtin::BI__sync_fetch_and_add:
     return EmitBinaryAtomic(*this, Intrinsic::atomic_las, E);
   case Builtin::BI__sync_fetch_and_sub: