From: Chris Lattner <sabre@nondot.org>
Date: Fri, 25 Apr 2003 23:26:52 +0000 (+0000)
Subject: New testcase that crashes preheaders
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=d96f1eb5e0167825bd0aa31f83b96be53cfb40d3;p=llvm

New testcase that crashes preheaders


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5954 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/test/Transforms/LoopPreheaders/2003-04-25-AssertFail.ll b/test/Transforms/LoopPreheaders/2003-04-25-AssertFail.ll
new file mode 100644
index 00000000000..968c34fd17d
--- /dev/null
+++ b/test/Transforms/LoopPreheaders/2003-04-25-AssertFail.ll
@@ -0,0 +1,22 @@
+; RUN: as < %s | opt -preheaders
+
+implementation   ; Functions:
+
+int %yylex() {		; No predecessors!
+	br label %loopentry.0
+
+loopentry.0:		; preds = %0, %yy_find_action, %else.4
+	br label %loopexit.2
+
+loopexit.2:		; preds = %loopentry.0, %else.4, %loopexit.2
+	br bool false, label %loopexit.2, label %else.4
+
+yy_find_action:		; preds = %loopexit.2, %else.4
+	br label %else.4
+
+else.4:		; preds = %yy_find_action
+	switch uint 0, label %loopexit.2 [
+		 uint 2, label %yy_find_action
+		 uint 0, label %loopentry.0
+	]
+}
diff --git a/test/Transforms/LoopSimplify/2003-04-25-AssertFail.ll b/test/Transforms/LoopSimplify/2003-04-25-AssertFail.ll
new file mode 100644
index 00000000000..968c34fd17d
--- /dev/null
+++ b/test/Transforms/LoopSimplify/2003-04-25-AssertFail.ll
@@ -0,0 +1,22 @@
+; RUN: as < %s | opt -preheaders
+
+implementation   ; Functions:
+
+int %yylex() {		; No predecessors!
+	br label %loopentry.0
+
+loopentry.0:		; preds = %0, %yy_find_action, %else.4
+	br label %loopexit.2
+
+loopexit.2:		; preds = %loopentry.0, %else.4, %loopexit.2
+	br bool false, label %loopexit.2, label %else.4
+
+yy_find_action:		; preds = %loopexit.2, %else.4
+	br label %else.4
+
+else.4:		; preds = %yy_find_action
+	switch uint 0, label %loopexit.2 [
+		 uint 2, label %yy_find_action
+		 uint 0, label %loopentry.0
+	]
+}