Make llvm memory barrier available as an intrinsic
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57751 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/clang/AST/Builtins.def b/include/clang/AST/Builtins.def
index d23cc14..a2d54df 100644
--- a/include/clang/AST/Builtins.def
+++ b/include/clang/AST/Builtins.def
@@ -24,6 +24,7 @@
// The second value provided to the macro specifies the type of the function
// (result value, then each argument) as follows:
// v -> void
+// b -> boolean
// c -> char
// s -> short
// i -> int
@@ -165,4 +166,7 @@
BUILTIN(__sync_lock_test_and_set,"ii*i", "n")
BUILTIN(__sync_val_compare_and_swap,"ii*ii", "n")
+// LLVM instruction builtin
+BUILTIN(__builtin_llvm_memory_barrier,"vbbbbb", "n")
+
#undef BUILTIN
diff --git a/lib/AST/Builtins.cpp b/lib/AST/Builtins.cpp
index 3980d20..1823ee6 100644
--- a/lib/AST/Builtins.cpp
+++ b/lib/AST/Builtins.cpp
@@ -127,6 +127,10 @@
else
Type = Context.CharTy;
break;
+ case 'b': // boolean
+ assert(!Long && !Signed && !Unsigned && "Bad modifiers for 'b'!");
+ Type = Context.BoolTy;
+ break;
case 'z': // size_t.
assert(!Long && !Signed && !Unsigned && "Bad modifiers for 'z'!");
Type = Context.getSizeType();