From: Chris Lattner <sabre@nondot.org>
Date: Fri, 4 Oct 2002 23:29:40 +0000 (+0000)
Subject: New testcase for bug never checked into CVS, but that I hit during debugging a
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=41a29f2b6f08aeb5653825d66b9d48b9aa6ef291;p=oota-llvm.git

New testcase for bug never checked into CVS, but that I hit during debugging a
new feature


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4039 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/test/Transforms/CorrelatedExprs/2002-10-04-ForwardingBug.ll b/test/Transforms/CorrelatedExprs/2002-10-04-ForwardingBug.ll
new file mode 100644
index 00000000000..c76c8fd929b
--- /dev/null
+++ b/test/Transforms/CorrelatedExprs/2002-10-04-ForwardingBug.ll
@@ -0,0 +1,35 @@
+; Testcase distilled from bisort where we tried to perform branch target 
+; forwarding where it was not safe.
+; RUN: as < %s | opt -cee
+;
+	%HANDLE = type { int, %HANDLE*, %HANDLE* }
+	%struct.node = type { int, %HANDLE*, %HANDLE* }
+%.LC0 = internal global [11 x sbyte] c"%d @ 0x%x\0A\00"		; <[11 x sbyte]*> [#uses=1]
+
+implementation   ; Functions:
+
+void %InOrder(%HANDLE* %h) {
+bb0:		; No predecessors!
+	br label %bb2
+
+bb2:		; preds = %bb3, %bb0
+	%reg113 = phi %HANDLE* [ %reg109, %bb3 ], [ %h, %bb0 ]		; <%HANDLE*> [#uses=4]
+	%cond217 = seteq %HANDLE* %reg113, null		; <bool> [#uses=1]
+	br bool %cond217, label %bb4, label %bb3
+
+bb3:		; preds = %bb2
+	%reg221 = getelementptr %HANDLE* %reg113, long 0, ubyte 1		; <%HANDLE**> [#uses=1]
+	%reg108 = load %HANDLE** %reg221		; <%HANDLE*> [#uses=1]
+	%reg226 = getelementptr %HANDLE* %reg113, long 0, ubyte 2		; <%HANDLE**> [#uses=1]
+	%reg109 = load %HANDLE** %reg226		; <%HANDLE*> [#uses=1]
+	call void %InOrder( %HANDLE* %reg108 )
+	%cast231 = getelementptr %HANDLE* %reg113, long 0, ubyte 0		; <int*> [#uses=1]
+	%reg111 = load int* %cast231		; <int> [#uses=1]
+	%reg233 = call int (sbyte*, ...)* %printf( sbyte* getelementptr ([11 x sbyte]* %.LC0, long 0, long 0), int %reg111, uint 0 )		; <int> [#uses=0]
+	br label %bb2
+
+bb4:		; preds = %bb2
+	ret void
+}
+
+declare int %printf(sbyte*, ...)