From 1a0e7081c3e94ae69f2768465da34a3dceaaa5f6 Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Tue, 22 Dec 2009 06:07:30 +0000
Subject: Implement PR5795 by merging duplicated return blocks.  This could go
 further by merging all returns in a function into a single one, but
 simplifycfg currently likes to duplicate the return (an unfortunate choice!)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91890 91177308-0d34-0410-b5e6-96231b3b80d8
---
 test/Transforms/SimplifyCFG/basictest.ll | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

(limited to 'test/Transforms')

diff --git a/test/Transforms/SimplifyCFG/basictest.ll b/test/Transforms/SimplifyCFG/basictest.ll
index d0e4754..83a9fa7 100644
--- a/test/Transforms/SimplifyCFG/basictest.ll
+++ b/test/Transforms/SimplifyCFG/basictest.ll
@@ -38,3 +38,22 @@ return:
 @test4g = global i8* blockaddress(@test4, %return)
 
 
+; PR5795
+define void @test5(i32 %A) {
+  switch i32 %A, label %return [
+    i32 2, label %bb
+    i32 10, label %bb1
+  ]
+
+bb:                                               ; preds = %entry
+  ret void
+
+bb1:                                              ; preds = %entry
+  ret void
+
+return:                                           ; preds = %entry
+  ret void
+; CHECK: @test5
+; CHECK-NEXT: bb:
+; CHECK-NEXT: ret void
+}
-- 
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