From: Owen Anderson <resistor@mac.com>
Date: Tue, 19 Jun 2007 05:41:22 +0000 (+0000)
Subject: Add a new testcase for memory corruption issues.
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=5b689c3a28cb3e51d25c2ef1e9ea448a4baf0757;p=oota-llvm.git

Add a new testcase for memory corruption issues.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37648 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/test/Transforms/GVNPRE/2007-06-18-EraseNumbering.ll b/test/Transforms/GVNPRE/2007-06-18-EraseNumbering.ll
new file mode 100644
index 00000000000..af51a032cab
--- /dev/null
+++ b/test/Transforms/GVNPRE/2007-06-18-EraseNumbering.ll
@@ -0,0 +1,26 @@
+; RUN: llvm-as < %s | opt -gvnpre | llvm-dis
+
+define i32 @TreeCCStreamFlush(i8* %stream) {
+entry:
+	br i1 false, label %bb55.preheader, label %cond_true
+
+cond_true:		; preds = %entry
+	ret i32 0
+
+bb55.preheader:		; preds = %entry
+	%tmp57 = icmp eq i8* null, null		; <i1> [#uses=0]
+	br i1 false, label %cond_next106, label %bb124
+
+cond_next106:		; preds = %bb55.preheader
+	%tmp109 = load i8** null
+	br i1 false, label %bb124, label %bb116
+
+bb116:		; preds = %cond_next106
+	ret i32 0
+
+bb124:		; preds = %cond_next106, %bb55.preheader
+	%buffer.4 = phi i8* [ null, %bb55.preheader ], [ %tmp109, %cond_next106 ]
+	%tmp131 = icmp eq i8* %buffer.4, null
+	%bothcond = or i1 %tmp131, false
+	ret i32 0
+}