From 009b1c42aa6266385f2c37e227516b24077e6dd7 Mon Sep 17 00:00:00 2001
From: Ed Schouten <ed@FreeBSD.org>
Date: Tue, 2 Jun 2009 17:52:33 +0000
Subject: Import LLVM, at r72732.

---
 test/Transforms/Mem2Reg/2005-11-28-Crash.ll | 62 +++++++++++++++++++++++++++++
 1 file changed, 62 insertions(+)
 create mode 100644 test/Transforms/Mem2Reg/2005-11-28-Crash.ll

(limited to 'test/Transforms/Mem2Reg/2005-11-28-Crash.ll')

diff --git a/test/Transforms/Mem2Reg/2005-11-28-Crash.ll b/test/Transforms/Mem2Reg/2005-11-28-Crash.ll
new file mode 100644
index 000000000000..a985db3eb8c7
--- /dev/null
+++ b/test/Transforms/Mem2Reg/2005-11-28-Crash.ll
@@ -0,0 +1,62 @@
+; RUN: llvm-as < %s | opt -mem2reg -disable-output
+; PR670
+
+define void @printk(i32, ...) {
+entry:
+	%flags = alloca i32		; <i32*> [#uses=2]
+	br i1 false, label %then.0, label %endif.0
+then.0:		; preds = %entry
+	br label %endif.0
+endif.0:		; preds = %then.0, %entry
+	store i32 0, i32* %flags
+	br label %loopentry
+loopentry:		; preds = %endif.3, %endif.0
+	br i1 false, label %no_exit, label %loopexit
+no_exit:		; preds = %loopentry
+	br i1 false, label %then.1, label %endif.1
+then.1:		; preds = %no_exit
+	br i1 false, label %shortcirc_done.0, label %shortcirc_next.0
+shortcirc_next.0:		; preds = %then.1
+	br label %shortcirc_done.0
+shortcirc_done.0:		; preds = %shortcirc_next.0, %then.1
+	br i1 false, label %shortcirc_done.1, label %shortcirc_next.1
+shortcirc_next.1:		; preds = %shortcirc_done.0
+	br label %shortcirc_done.1
+shortcirc_done.1:		; preds = %shortcirc_next.1, %shortcirc_done.0
+	br i1 false, label %shortcirc_done.2, label %shortcirc_next.2
+shortcirc_next.2:		; preds = %shortcirc_done.1
+	br label %shortcirc_done.2
+shortcirc_done.2:		; preds = %shortcirc_next.2, %shortcirc_done.1
+	br i1 false, label %then.2, label %endif.2
+then.2:		; preds = %shortcirc_done.2
+	br label %endif.2
+endif.2:		; preds = %then.2, %shortcirc_done.2
+	br label %endif.1
+endif.1:		; preds = %endif.2, %no_exit
+	br i1 false, label %then.3, label %endif.3
+then.3:		; preds = %endif.1
+	br label %endif.3
+endif.3:		; preds = %then.3, %endif.1
+	br label %loopentry
+loopexit:		; preds = %loopentry
+	br label %endif.4
+then.4:		; No predecessors!
+	%tmp.61 = load i32* %flags		; <i32> [#uses=0]
+	br label %out
+dead_block_after_goto:		; No predecessors!
+	br label %endif.4
+endif.4:		; preds = %dead_block_after_goto, %loopexit
+	br i1 false, label %then.5, label %else
+then.5:		; preds = %endif.4
+	br label %endif.5
+else:		; preds = %endif.4
+	br label %endif.5
+endif.5:		; preds = %else, %then.5
+	br label %out
+out:		; preds = %endif.5, %then.4
+	br label %return
+after_ret:		; No predecessors!
+	br label %return
+return:		; preds = %after_ret, %out
+	ret void
+}
-- 
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