Start the migration of more of the blocks code out of sight for most
people. De-duplicates BLOCK_NEEDS_FREE and friends.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@66035 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CGBlocks.h b/lib/CodeGen/CGBlocks.h
new file mode 100644
index 0000000..4ba699b
--- /dev/null
+++ b/lib/CodeGen/CGBlocks.h
@@ -0,0 +1,54 @@
+//===-- CGBlocks.h - state for LLVM CodeGen for blocks ----------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This is the internal state used for llvm translation for block literals.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef CLANG_CODEGEN_CGBLOCKS_H
+#define CLANG_CODEGEN_CGBLOCKS_H
+
+namespace clang {
+
+namespace CodeGen {
+
+class BlockBase {
+public:
+ enum {
+ BLOCK_NEEDS_FREE = (1 << 24),
+ BLOCK_HAS_COPY_DISPOSE = (1 << 25),
+ BLOCK_HAS_CXX_OBJ = (1 << 26),
+ BLOCK_IS_GC = (1 << 27),
+ BLOCK_IS_GLOBAL = (1 << 28),
+ BLOCK_HAS_DESCRIPTOR = (1 << 29)
+ };
+};
+
+class BlockModule : public BlockBase {
+};
+
+class BlockFunction : public BlockBase {
+public:
+ enum {
+ BLOCK_FIELD_IS_OBJECT = 3, /* id, NSObject, __attribute__((NSObject)),
+ block, ... */
+ BLOCK_FIELD_IS_BLOCK = 7, /* a block variable */
+ BLOCK_FIELD_IS_BYREF = 8, /* the on stack structure holding the __block
+ variable */
+ BLOCK_FIELD_IS_WEAK = 16, /* declared __weak, only used in byref copy
+ helpers */
+ BLOCK_BYREF_CALLER = 128 /* called from __block (byref) copy/dispose
+ support routines */
+ };
+};
+
+} // end namespace CodeGen
+} // end namespace clang
+
+#endif