From 03d49e955ed81d5adc6bc9d557c9e302584aa152 Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Mon, 3 Jan 2011 03:33:47 +0000
Subject: [PATCH] add a testcase for readonly call CSE

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122730 91177308-0d34-0410-b5e6-96231b3b80d8
---
 test/Transforms/EarlyCSE/basic.ll | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/test/Transforms/EarlyCSE/basic.ll b/test/Transforms/EarlyCSE/basic.ll
index a761ef764c6..6d772599b36 100644
--- a/test/Transforms/EarlyCSE/basic.ll
+++ b/test/Transforms/EarlyCSE/basic.ll
@@ -75,3 +75,15 @@ F:
   ; CHECK: F:
   ; CHECK: ret i32 %Diff
 }
+
+declare i32 @func(i32 *%P) readonly
+
+;; Simple call CSE'ing.
+; CHECK: @test5
+define i32 @test5(i32 *%P) {
+  %V1 = call i32 @func(i32* %P)
+  %V2 = call i32 @func(i32* %P)
+  %Diff = sub i32 %V1, %V2
+  ret i32 %Diff
+  ; CHECK: ret i32 0
+}
-- 
2.34.1