From a1040199e4363374112394da135784d42a557d51 Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Wed, 5 Mar 2003 21:34:35 +0000
Subject: [PATCH] Add new testcase

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5701 91177308-0d34-0410-b5e6-96231b3b80d8
---
 test/Transforms/SimplifyCFG/PhiBlockMerge2.ll | 24 +++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 test/Transforms/SimplifyCFG/PhiBlockMerge2.ll

diff --git a/test/Transforms/SimplifyCFG/PhiBlockMerge2.ll b/test/Transforms/SimplifyCFG/PhiBlockMerge2.ll
new file mode 100644
index 00000000000..aecb6b9244f
--- /dev/null
+++ b/test/Transforms/SimplifyCFG/PhiBlockMerge2.ll
@@ -0,0 +1,24 @@
+; Test merging of blocks that only have PHI nodes in them.  This tests the case
+; where the mergedinto block doesn't have any PHI nodes, and is in fact 
+; dominated by the block-to-be-eliminated
+;
+; RUN: if as < %s | opt -simplifycfg | dis | grep 'N:'
+; RUN: then exit 1
+; RUN: else exit 0
+; RUN: fi
+;
+
+int %test(bool %a, bool %b) {
+	br bool %b, label %N, label %Q
+Q:
+	br label %N
+N:
+	%W = phi int [0, %0], [1, %Q]
+	; This block should be foldable into M
+	br label %M
+
+M:
+	%R = add int %W, 1
+	ret int %R
+}
+