From a24653cdfc1e4ec7a8055d8f086e2a210cfd7bac Mon Sep 17 00:00:00 2001
From: Misha Brukman <brukman+llvm@gmail.com>
Date: Fri, 12 Mar 2004 06:17:22 +0000
Subject: [PATCH] Test the mod/ref analysis in DSA.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12333 91177308-0d34-0410-b5e6-96231b3b80d8
---
 test/Analysis/DSGraph/2004-03-10-ElimLoad.ll   | 13 +++++++++++++
 test/Analysis/DSGraph/2004-03-10-NoElimLoad.ll | 14 ++++++++++++++
 2 files changed, 27 insertions(+)
 create mode 100644 test/Analysis/DSGraph/2004-03-10-ElimLoad.ll
 create mode 100644 test/Analysis/DSGraph/2004-03-10-NoElimLoad.ll

diff --git a/test/Analysis/DSGraph/2004-03-10-ElimLoad.ll b/test/Analysis/DSGraph/2004-03-10-ElimLoad.ll
new file mode 100644
index 00000000000..1ae0a48a843
--- /dev/null
+++ b/test/Analysis/DSGraph/2004-03-10-ElimLoad.ll
@@ -0,0 +1,13 @@
+; RUN: llvm-as < %s | opt -ds-aa -load-vn -gcse -instcombine | llvm-dis | not grep sub
+
+void %bar(int* %p) {
+  ret void
+}
+
+int %foo(int* %a) {
+  %b = load int* %a
+  call void %bar(int* %a)
+  %d = load int* %a
+  %e = sub int %b, %d
+  ret int %e
+}
diff --git a/test/Analysis/DSGraph/2004-03-10-NoElimLoad.ll b/test/Analysis/DSGraph/2004-03-10-NoElimLoad.ll
new file mode 100644
index 00000000000..3a8e540ef16
--- /dev/null
+++ b/test/Analysis/DSGraph/2004-03-10-NoElimLoad.ll
@@ -0,0 +1,14 @@
+; RUN: llvm-as < %s | opt -ds-aa -load-vn -gcse -instcombine | llvm-dis | grep sub
+
+void %bar(int* %p) {
+  store int 15, int* %p
+  ret void
+}
+
+int %foo(int* %a) {
+  %b = load int* %a
+  call void %bar(int* %a)
+  %d = load int* %a
+  %e = sub int %b, %d
+  ret int %e
+}
-- 
2.11.0