Add the new `-no-builtin' flag. This flag is meant to mimic the GCC
`-fno-builtin' flag. Currently, it's used to replace "memset" with "_bzero"
instead of "__bzero" on Darwin10+. This arguably violates the meaning of this
flag, but is currently sufficient. The meaning of this flag should become more
specific over time.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56885 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/X86ISelLowering.h b/lib/Target/X86/X86ISelLowering.h
index dac0da7..5cdb65d 100644
--- a/lib/Target/X86/X86ISelLowering.h
+++ b/lib/Target/X86/X86ISelLowering.h
@@ -575,17 +575,18 @@
     SDNode *ExpandATOMIC_CMP_SWAP(SDNode *N, SelectionDAG &DAG);
     
     SDValue EmitTargetCodeForMemset(SelectionDAG &DAG,
-                                      SDValue Chain,
-                                      SDValue Dst, SDValue Src,
-                                      SDValue Size, unsigned Align,
-                                      const Value *DstSV, uint64_t DstSVOff);
+                                    SDValue Chain,
+                                    SDValue Dst, SDValue Src,
+                                    SDValue Size, unsigned Align,
+                                    const Value *DstSV, uint64_t DstSVOff,
+                                    bool NoBuiltin);
     SDValue EmitTargetCodeForMemcpy(SelectionDAG &DAG,
-                                      SDValue Chain,
-                                      SDValue Dst, SDValue Src,
-                                      SDValue Size, unsigned Align,
-                                      bool AlwaysInline,
-                                      const Value *DstSV, uint64_t DstSVOff,
-                                      const Value *SrcSV, uint64_t SrcSVOff);
+                                    SDValue Chain,
+                                    SDValue Dst, SDValue Src,
+                                    SDValue Size, unsigned Align,
+                                    bool AlwaysInline,
+                                    const Value *DstSV, uint64_t DstSVOff,
+                                    const Value *SrcSV, uint64_t SrcSVOff);
     
     /// Utility function to emit atomic bitwise operations (and, or, xor).
     // It takes the bitwise instruction to expand, the associated machine basic