From 4ecbca558f8ee558dd0e84e079f16528fd9768f2 Mon Sep 17 00:00:00 2001
From: Dan Gohman <gohman@apple.com>
Date: Tue, 9 Mar 2010 23:46:50 +0000
Subject: Avoid analyzing instructions in blocks not reachable from the entry
 block. They are lots of trouble, and they don't matter. This fixes PR6559.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98103 91177308-0d34-0410-b5e6-96231b3b80d8
---
 test/Analysis/ScalarEvolution/unreachable-code.ll | 13 +++++++++++++
 1 file changed, 13 insertions(+)
 create mode 100644 test/Analysis/ScalarEvolution/unreachable-code.ll

(limited to 'test/Analysis/ScalarEvolution/unreachable-code.ll')

diff --git a/test/Analysis/ScalarEvolution/unreachable-code.ll b/test/Analysis/ScalarEvolution/unreachable-code.ll
new file mode 100644
index 0000000..51d9398
--- /dev/null
+++ b/test/Analysis/ScalarEvolution/unreachable-code.ll
@@ -0,0 +1,13 @@
+; RUN: opt < %s -analyze -scalar-evolution | FileCheck %s
+
+; CHECK: %t = add i64 %t, 1
+; CHECK: -->  %t
+
+define void @foo() {
+entry:
+  ret void
+
+dead:
+  %t = add i64 %t, 1
+  ret void
+}
-- 
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