Add the clang library to the repo (with some of my changes, too).

1 files changed, 47 insertions, 0 deletions

diff --git a/clang/test/CodeGenObjC/protocols-lazy.m b/clang/test/CodeGenObjC/protocols-lazy.m
new file mode 100644
index 0000000..1c551fb
--- /dev/null
+++ b/clang/test/CodeGenObjC/protocols-lazy.m
@@ -0,0 +1,47 @@
+// RUN: %clang_cc1 -emit-llvm -triple i686-apple-darwin8 -fobjc-fragile-abi -o %t %s
+// RUNX: llvm-gcc -S -emit-llvm -o %t %s &&
+
+// No object generated
+// RUN: grep OBJC_PROTOCOL_P0 %t | count 0
+@protocol P0;
+
+// No object generated
+// RUN: grep OBJC_PROTOCOL_P1 %t | count 0
+@protocol P1 -im1; @end
+
+// Definition triggered by protocol reference.
+// RUN: grep OBJC_PROTOCOL_P2 %t | count 3
+// RUN: grep OBJC_PROTOCOL_INSTANCE_METHODS_P2 %t | count 3
+@protocol P2 -im1; @end
+void f0() { id x = @protocol(P2); }
+
+// Forward definition triggered by protocol reference.
+// RUN: grep OBJC_PROTOCOL_P3 %t | count 3
+// RUN: grep OBJC_PROTOCOL_INSTANCE_METHODS_P3 %t | count 0
+@protocol P3;
+void f1() { id x = @protocol(P3); }
+
+// Definition triggered by class reference.
+// RUN: grep OBJC_PROTOCOL_P4 %t | count 3
+// RUN: grep OBJC_PROTOCOL_INSTANCE_METHODS_P4 %t | count 3
+@protocol P4 -im1; @end
+@interface I0<P4> @end
+@implementation I0 -im1 { return 0; }; @end
+
+// Definition following forward reference.
+// RUN: grep OBJC_PROTOCOL_P5 %t | count 3
+// RUN: grep OBJC_PROTOCOL_INSTANCE_METHODS_P5 %t | count 3
+@protocol P5;
+void f2() { id x = @protocol(P5); } // This generates a forward
+                                    // reference, which has to be
+                                    // updated on the next line.
+@protocol P5 -im1; @end               
+
+// Protocol reference following definition.
+// RUN: grep OBJC_PROTOCOL_P6 %t | count 4
+// RUN: grep OBJC_PROTOCOL_INSTANCE_METHODS_P6 %t | count 3
+@protocol P6 -im1; @end
+@interface I1<P6> @end
+@implementation I1 -im1 { return 0; }; @end
+void f3() { id x = @protocol(P6); }
+