commit 8404f670f5bda1efb60076c701613b86b576533d
author Fariborz Jahanian <fjahanian@apple.com> Fri Aug 13 00:19:55 2010 +0000
committer Fariborz Jahanian <fjahanian@apple.com> Fri Aug 13 00:19:55 2010 +0000
tree 3dd7e958a4c518638769446882caffdf136198d9
parent 279b5eb6910d64a293e9c0e2887a05c65d8737d7

Make use of __func__ in a block actually refer to
block's helper function. Fixes radar 7860965.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110988 91177308-0d34-0410-b5e6-96231b3b80d8

lib/CodeGen/CGBlocks.cpp

diff --git a/lib/CodeGen/CGBlocks.cpp b/lib/CodeGen/CGBlocks.cpp
index bb81bf5..1dceb32 100644
--- a/lib/CodeGen/CGBlocks.cpp
+++ b/lib/CodeGen/CGBlocks.cpp
@@ -790,7 +790,11 @@
                            Name.getString(), &CGM.getModule());
 
   CGM.SetInternalFunctionAttributes(BD, Fn, FI);
-
+  StartFunction(BD, ResultType, Fn, Args,
+                BExpr->getBody()->getLocEnd());
+  
+  CurFuncDecl = OuterFuncDecl;
+  
   QualType FnType(BlockFunctionType, 0);
   bool HasPrototype = isa<FunctionProtoType>(BlockFunctionType);
   
@@ -802,12 +806,19 @@
                                      FunctionDecl::Static,
                                      FunctionDecl::None,
                                      false, HasPrototype);
+  if (FunctionProtoType *FT = dyn_cast<FunctionProtoType>(FnType)) {
+    const FunctionDecl *CFD = dyn_cast<FunctionDecl>(CurCodeDecl);
+    FunctionDecl *FD = const_cast<FunctionDecl *>(CFD);
+    llvm::SmallVector<ParmVarDecl*, 16> Params;
+    for (unsigned i = 0, e = FT->getNumArgs(); i != e; ++i)
+      Params.push_back(ParmVarDecl::Create(getContext(), FD, 
+                                           SourceLocation(), 0,
+                                           FT->getArgType(i), /*TInfo=*/0,
+                                           VarDecl::None, VarDecl::None, 0));
+    FD->setParams(Params.data(), Params.size());
+  }
   
-  StartFunction(BD, ResultType, Fn, Args,
-                BExpr->getBody()->getLocEnd());
-
-  CurFuncDecl = OuterFuncDecl;
-
+  
   // If we have a C++ 'this' reference, go ahead and force it into
   // existence now.
   if (Info.CXXThisRef) {

test/CodeGen/func-in-block.c

diff --git a/test/CodeGen/func-in-block.c b/test/CodeGen/func-in-block.c
index 27e0c09..7e65ff9 100644
--- a/test/CodeGen/func-in-block.c
+++ b/test/CodeGen/func-in-block.c
@@ -15,4 +15,5 @@
     return 0; // not reached
 }
 
+// CHECK: @__func__.__main_block_invoke_0 = private constant [22 x i8] c"__main_block_invoke_0\00"
 // CHECK: call void @PRINTF({{.*}}@__func__.__main_block_invoke_