From e48c31ce33d5d033aa9a79f092057d92173a676d Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Sun, 21 Nov 2010 07:34:32 +0000
Subject: implement PR8576, deleting dead stores with intervening may-alias
 stores.

llvm-svn: 119927
---
 llvm/test/Transforms/DeadStoreElimination/simple.ll | 9 +++++++++
 1 file changed, 9 insertions(+)

(limited to 'llvm/test/Transforms/DeadStoreElimination/simple.ll')

diff --git a/llvm/test/Transforms/DeadStoreElimination/simple.ll b/llvm/test/Transforms/DeadStoreElimination/simple.ll
index f0c140d50a3..0a16603f55d 100644
--- a/llvm/test/Transforms/DeadStoreElimination/simple.ll
+++ b/llvm/test/Transforms/DeadStoreElimination/simple.ll
@@ -11,3 +11,12 @@ define void @test1(i32* %Q, i32* %P) {
 ; CHECK-NEXT: ret void
 }
 
+; PR8576 - Should delete store of 10 even though p/q are may aliases.
+define void @test2(i32 *%p, i32 *%q) {
+  store i32 10, i32* %p, align 4
+  store i32 20, i32* %q, align 4
+  store i32 30, i32* %p, align 4
+  ret void
+; CHECK: @test2
+; CHECK-NEXT: store i32 20
+}
-- 
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