From: Chris Lattner <sabre@nondot.org>
Date: Wed, 3 Aug 2005 18:01:07 +0000 (+0000)
Subject: Testcase  that used to crash simplifycfg
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=82e6ef3ec3fce02f14d879195789cbef5b24c9be;p=oota-llvm.git

Testcase  that used to crash simplifycfg


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22622 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/test/Transforms/SimplifyCFG/2005-08-03-PHIFactorCrash.ll b/test/Transforms/SimplifyCFG/2005-08-03-PHIFactorCrash.ll
new file mode 100644
index 00000000000..e844c08af1a
--- /dev/null
+++ b/test/Transforms/SimplifyCFG/2005-08-03-PHIFactorCrash.ll
@@ -0,0 +1,94 @@
+; RUN: llvm-as < %s | opt -simplifycfg -disable-output
+
+	%arraytype.1.Char = type { int, [0 x sbyte] }
+	%arraytype.4.Signed = type { int, [0 x int] }
+	%functiontype.23 = type %structtype.Task* (%structtype.Task*, %structtype.Packet*, %structtype.FailedRun*)
+	%functiontype.27 = type %structtype.object* ()
+	%functiontype.28 = type bool (%structtype.object*, %structtype.object_vtable*)
+	%functiontype.39 = type int (%structtype.listiter*)
+	%opaquetype.RuntimeTypeInfo = type sbyte* (sbyte*)
+	%structtype.AssertionError_vtable = type { %structtype.FailedRun_vtable }
+	%structtype.DeviceTask = type { %structtype.Task }
+	%structtype.FailedRun = type { %structtype.object }
+	%structtype.FailedRun_vtable = type { %structtype.object_vtable }
+	%structtype.Packet = type { %structtype.object, %structtype.list.1*, int, int, int, %structtype.Packet* }
+	%structtype.Task = type { %structtype.TaskState, %structtype.FailedRun*, int, %structtype.Packet*, %structtype.Task*, int }
+	%structtype.TaskState = type { %structtype.object, bool, bool, bool }
+	%structtype.list.1 = type { %arraytype.4.Signed* }
+	%structtype.listiter = type { %structtype.list.1*, int }
+	%structtype.object = type { %structtype.object_vtable* }
+	%structtype.object_vtable = type { %structtype.object_vtable*, %opaquetype.RuntimeTypeInfo*, %arraytype.1.Char*, %functiontype.27* }
+%structinstance.59 = external global %structtype.AssertionError_vtable		; <%structtype.AssertionError_vtable*> [#uses=0]
+
+implementation   ; Functions:
+
+declare fastcc bool %ll_isinstance__objectPtr_object_vtablePtr()
+
+declare fastcc void %ll_listnext__listiterPtr()
+
+fastcc void %WorkTask.fn() {
+block0:
+	br label %block1
+
+block1:		; preds = %block0
+	%v2542 = call fastcc bool %ll_isinstance__objectPtr_object_vtablePtr( )		; <bool> [#uses=1]
+	br bool %v2542, label %block4, label %block2
+
+block2:		; preds = %block1
+	br label %block3
+
+block3:		; preds = %block2
+	unwind
+
+block4:		; preds = %block1
+	br label %block5
+
+block5:		; preds = %block4
+	%v2565 = seteq %structtype.Packet* null, null		; <bool> [#uses=1]
+	br bool %v2565, label %block15, label %block6
+
+block6:		; preds = %block5
+	%self_2575 = phi %structtype.DeviceTask* [ null, %block5 ]		; <%structtype.DeviceTask*> [#uses=1]
+	br bool false, label %block14, label %block7
+
+block7:		; preds = %block14, %block6
+	%self_2635 = phi %structtype.DeviceTask* [ %self_2575, %block6 ], [ null, %block14 ]		; <%structtype.DeviceTask*> [#uses=1]
+	%tmp.124 = getelementptr %structtype.Packet* null, int 0, uint 2		; <int*> [#uses=0]
+	br label %block8
+
+block8:		; preds = %block10, %block7
+	%self_2672 = phi %structtype.DeviceTask* [ %self_2635, %block7 ], [ null, %block10 ]		; <%structtype.DeviceTask*> [#uses=0]
+	invoke fastcc void %ll_listnext__listiterPtr( )
+			to label %block9 unwind label %block8_exception_handling
+
+block8_exception_handling:		; preds = %block8
+	br bool false, label %block8_exception_found_branchto_block12, label %block8_not_exception_structinstance.10
+
+block8_not_exception_structinstance.10:		; preds = %block8_exception_handling
+	unwind
+
+block8_exception_found_branchto_block12:		; preds = %block8_exception_handling
+	br label %block12
+
+block9:		; preds = %block8
+	br bool false, label %block11, label %block10
+
+block10:		; preds = %block11, %block9
+	br label %block8
+
+block11:		; preds = %block9
+	br label %block10
+
+block12:		; preds = %block8_exception_found_branchto_block12
+	br label %block13
+
+block13:		; preds = %block15, %block12
+	ret void
+
+block14:		; preds = %block6
+	br label %block7
+
+block15:		; preds = %block5
+	%v2586 = phi %structtype.DeviceTask* [ null, %block5 ]		; <%structtype.DeviceTask*> [#uses=0]
+	br label %block13
+}