From 0a0fc220cc20169f1e95afc2dbff4fee718c6acd Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Tue, 27 Jul 2004 02:19:27 +0000
Subject: [PATCH] New testcase.  DSE should delete all of the DEAD
 instructions.

llvm-svn: 15253
---
 .../DeadStoreElimination/context-sensitive.llx    | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
 create mode 100644 llvm/test/Regression/Transforms/DeadStoreElimination/context-sensitive.llx

diff --git a/llvm/test/Regression/Transforms/DeadStoreElimination/context-sensitive.llx b/llvm/test/Regression/Transforms/DeadStoreElimination/context-sensitive.llx
new file mode 100644
index 000000000000..428030c8e242
--- /dev/null
+++ b/llvm/test/Regression/Transforms/DeadStoreElimination/context-sensitive.llx
@@ -0,0 +1,15 @@
+; RUN: llvm-as < %s | opt -dse | llvm-dis | not grep DEAD
+
+declare void %ext() 
+
+int* %caller() {
+	%P = malloc int
+	%DEAD = load int* %P
+	%DEAD2 = add int %DEAD, 1
+	store int %DEAD2, int* %P  ;; dead store
+
+	call void %ext()         ; Can not clobber *P
+
+	store int 0, int* %P
+	ret int* %P
+}