[llvm] r179972 - [objc-arc] Check that objc-arc-expand properly handles all strictly forwarding calls and does not touch calls which are not strictly forwarding (i.e. objc_retainBlock).

[Michael Gottesman]

Author: mgottesman
Date: Sat Apr 20 20:57:46 2013
New Revision: 179972

URL: http://llvm.org/viewvc/llvm-project?rev=179972&view=rev
Log:
[objc-arc] Check that objc-arc-expand properly handles all strictly forwarding calls and does not touch calls which are not strictly forwarding (i.e. objc_retainBlock).

Modified:
    llvm/trunk/test/Transforms/ObjCARC/expand.ll

Modified: llvm/trunk/test/Transforms/ObjCARC/expand.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Transforms/ObjCARC/expand.ll?rev=179972&r1=179971&r2=179972&view=diff
==============================================================================
--- llvm/trunk/test/Transforms/ObjCARC/expand.ll (original)
+++ llvm/trunk/test/Transforms/ObjCARC/expand.ll Sat Apr 20 20:57:46 2013
@@ -4,25 +4,91 @@ target datalayout = "e-p:64:64:64"
 
 declare i8* @objc_retain(i8*)
 declare i8* @objc_autorelease(i8*)
+declare i8* @objc_retainAutoreleasedReturnValue(i8*)
+declare i8* @objc_autoreleaseReturnValue(i8*)
+declare i8* @objc_retainAutorelease(i8*)
+declare i8* @objc_retainAutoreleaseReturnValue(i8*)
+declare i8* @objc_retainBlock(i8*)
 
 declare void @use_pointer(i8*)
 
-; CHECK: define void @test0
+; CHECK: define void @test_retain(i8* %x) [[NUW:#[0-9]+]] {
+; CHECK: call i8* @objc_retain(i8* %x)
 ; CHECK: call void @use_pointer(i8* %x)
 ; CHECK: }
-define void @test0(i8* %x) nounwind {
+define void @test_retain(i8* %x) nounwind {
 entry:
   %0 = call i8* @objc_retain(i8* %x) nounwind
   call void @use_pointer(i8* %0)
   ret void
 }
 
-; CHECK: define void @test1
+; CHECK: define void @test_retainAutoreleasedReturnValue(i8* %x) [[NUW]] {
+; CHECK: call i8* @objc_retainAutoreleasedReturnValue(i8* %x)
 ; CHECK: call void @use_pointer(i8* %x)
 ; CHECK: }
-define void @test1(i8* %x) nounwind {
+define void @test_retainAutoreleasedReturnValue(i8* %x) nounwind {
+entry:
+  %0 = call i8* @objc_retainAutoreleasedReturnValue(i8* %x) nounwind
+  call void @use_pointer(i8* %0)
+  ret void
+}
+
+; CHECK: define void @test_retainAutorelease(i8* %x) [[NUW]] {
+; CHECK: call i8* @objc_retainAutorelease(i8* %x)
+; CHECK: call void @use_pointer(i8* %x)
+; CHECK: }
+define void @test_retainAutorelease(i8* %x) nounwind {
+entry:
+  %0 = call i8* @objc_retainAutorelease(i8* %x) nounwind
+  call void @use_pointer(i8* %0)
+  ret void
+}
+
+; CHECK: define void @test_retainAutoreleaseReturnValue(i8* %x) [[NUW]] {
+; CHECK: call i8* @objc_retainAutoreleaseReturnValue(i8* %x)
+; CHECK: call void @use_pointer(i8* %x)
+; CHECK: }
+define void @test_retainAutoreleaseReturnValue(i8* %x) nounwind {
+entry:
+  %0 = call i8* @objc_retainAutoreleaseReturnValue(i8* %x) nounwind
+  call void @use_pointer(i8* %0)
+  ret void
+}
+
+; CHECK: define void @test_autorelease(i8* %x) [[NUW]] {
+; CHECK: call i8* @objc_autorelease(i8* %x)
+; CHECK: call void @use_pointer(i8* %x)
+; CHECK: }
+define void @test_autorelease(i8* %x) nounwind {
 entry:
   %0 = call i8* @objc_autorelease(i8* %x) nounwind
-  call void @use_pointer(i8* %x)
+  call void @use_pointer(i8* %0)
+  ret void
+}
+
+; CHECK: define void @test_autoreleaseReturnValue(i8* %x) [[NUW]] {
+; CHECK: call i8* @objc_autoreleaseReturnValue(i8* %x)
+; CHECK: call void @use_pointer(i8* %x)
+; CHECK: }
+define void @test_autoreleaseReturnValue(i8* %x) nounwind {
+entry:
+  %0 = call i8* @objc_autoreleaseReturnValue(i8* %x) nounwind
+  call void @use_pointer(i8* %0)
+  ret void
+}
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+; RetainBlock is not strictly forwarding. Do not touch it. ;
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+; CHECK: define void @test_retainBlock(i8* %x) [[NUW]] {
+; CHECK: call i8* @objc_retainBlock(i8* %x)
+; CHECK: call void @use_pointer(i8* %0)
+; CHECK: }
+define void @test_retainBlock(i8* %x) nounwind {
+entry:
+  %0 = call i8* @objc_retainBlock(i8* %x) nounwind
+  call void @use_pointer(i8* %0)
   ret void
 }