[cfe-commits] r70794 - in /cfe/trunk: include/clang/AST/Builtins.def lib/CodeGen/CGBuiltin.cpp test/CodeGen/builtins.c

[Eli Friedman]

Author: efriedma
Date: Sun May  3 14:23:23 2009
New Revision: 70794

URL: http://llvm.org/viewvc/llvm-project?rev=70794&view=rev
Log:
PR4134: Implement __builtin_extract_return_addr.


Modified:
    cfe/trunk/include/clang/AST/Builtins.def
    cfe/trunk/lib/CodeGen/CGBuiltin.cpp
    cfe/trunk/test/CodeGen/builtins.c

Modified: cfe/trunk/include/clang/AST/Builtins.def
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/AST/Builtins.def?rev=70794&r1=70793&r2=70794&view=diff

==============================================================================
--- cfe/trunk/include/clang/AST/Builtins.def (original)
+++ cfe/trunk/include/clang/AST/Builtins.def Sun May  3 14:23:23 2009
@@ -162,6 +162,7 @@
 BUILTIN(__builtin_strspn, "zcC*cC*", "nF")
 BUILTIN(__builtin_strstr, "c*cC*cC*", "nF")
 BUILTIN(__builtin_return_address, "v*Ui", "n")
+BUILTIN(__builtin_extract_return_addr, "v*v*", "n")
 BUILTIN(__builtin_frame_address, "v*Ui", "n")
 BUILTIN(__builtin_flt_rounds, "i", "nc")
 BUILTIN(__builtin_setjmp, "iv**", "")

Modified: cfe/trunk/lib/CodeGen/CGBuiltin.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGBuiltin.cpp?rev=70794&r1=70793&r2=70794&view=diff

==============================================================================
--- cfe/trunk/lib/CodeGen/CGBuiltin.cpp (original)
+++ cfe/trunk/lib/CodeGen/CGBuiltin.cpp Sun May  3 14:23:23 2009
@@ -310,7 +310,10 @@
     Value *F = CGM.getIntrinsic(Intrinsic::frameaddress, 0, 0);
     return RValue::get(Builder.CreateCall(F, EmitScalarExpr(E->getArg(0))));
   }
-
+  case Builtin::BI__builtin_extract_return_addr: {
+    // FIXME: There should be a target hook for this
+    return RValue::get(EmitScalarExpr(E->getArg(0)));
+  }
   case Builtin::BI__sync_fetch_and_add:
     return EmitBinaryAtomic(*this, Intrinsic::atomic_load_add, E);
   case Builtin::BI__sync_fetch_and_sub:

Modified: cfe/trunk/test/CodeGen/builtins.c
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGen/builtins.c?rev=70794&r1=70793&r2=70794&view=diff

==============================================================================
--- cfe/trunk/test/CodeGen/builtins.c (original)
+++ cfe/trunk/test/CodeGen/builtins.c Sun May  3 14:23:23 2009
@@ -109,6 +109,7 @@
   // FIXME
   // V(clear_cache, (&N, &N+1));
   V(trap, ());
+  P(extract_return_addr, (&N));
 
   return 0;
 }