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Extra paranoid test for r179925 (verify that tail calls are not generated to 'this'-returning constructors of objects with different 'this' pointers than the caller)

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180032 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Stephen Lin 2013-04-22 17:23:49 +00:00
parent 72590d57bd
commit 2fdbbe307d
1 changed files with 14 additions and 0 deletions
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14
test/CodeGen/ARM/this-return.ll
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@ -5,6 +5,7 @@
%struct.B = type { i32 }
%struct.C = type { %struct.B }
%struct.D = type { %struct.B }
%struct.E = type { %struct.B, %struct.B }
declare %struct.A* @A_ctor_base(%struct.A* returned)
declare %struct.B* @B_ctor_base(%struct.B* returned, i32)
@ -89,3 +90,16 @@ entry:
%call2 = tail call %struct.B* @B_ctor_complete(%struct.B* %b, i32 %x)
ret %struct.D* %this
}
define %struct.E* @E_ctor_base(%struct.E* %this, i32 %x) {
entry:
; CHECKELF: E_ctor_base:
; CHECKELF-NOT: b B_ctor_complete
; CHECKT2D: E_ctor_base:
; CHECKT2D-NOT: b.w _B_ctor_complete
%b = getelementptr inbounds %struct.E* %this, i32 0, i32 0
%call = tail call %struct.B* @B_ctor_complete(%struct.B* %b, i32 %x)
%b2 = getelementptr inbounds %struct.E* %this, i32 0, i32 1
%call2 = tail call %struct.B* @B_ctor_complete(%struct.B* %b2, i32 %x)
ret %struct.E* %this
}