From d2c3bdd2699a5938d92c4dbb50c7e74065c9a03b Mon Sep 17 00:00:00 2001
From: Nick Lewycky <nicholas@mxc.ca>
Date: Sun, 29 Jul 2012 01:15:37 +0000
Subject: [PATCH] Add testcases for GlobalOpt changes in r160693 and r160757.

llvm-svn: 160925
---
 .../GlobalOpt/cleanup-pointer-root-users.ll   | 36 +++++++++++++++++--
 1 file changed, 33 insertions(+), 3 deletions(-)

diff --git a/llvm/test/Transforms/GlobalOpt/cleanup-pointer-root-users.ll b/llvm/test/Transforms/GlobalOpt/cleanup-pointer-root-users.ll
index f426120e7075..a472f1033ff9 100644
--- a/llvm/test/Transforms/GlobalOpt/cleanup-pointer-root-users.ll
+++ b/llvm/test/Transforms/GlobalOpt/cleanup-pointer-root-users.ll
@@ -1,12 +1,12 @@
 ; RUN: opt -globalopt -S -o - < %s | FileCheck %s
 
-@test1 = internal global i8* null
+@glbl = internal global i8* null
 
 define void @test1a() {
 ; CHECK: @test1a
 ; CHECK-NOT: store
 ; CHECK-NEXT: ret void
-  store i8* null, i8** @test1
+  store i8* null, i8** @glbl
   ret void
 }
 
@@ -14,6 +14,36 @@ define void @test1b(i8* %p) {
 ; CHECK: @test1b
 ; CHECK-NEXT: store
 ; CHECK-NEXT: ret void
-  store i8* %p, i8** @test1
+  store i8* %p, i8** @glbl
   ret void
 }
+
+define void @test2() {
+; CHECK: @test2
+; CHECK: alloca i8
+  %txt = alloca i8
+  call void @foo2(i8* %txt)
+  %call2 = call i8* @strdup(i8* %txt)
+  store i8* %call2, i8** @glbl
+  ret void
+}
+declare i8* @strdup(i8*)
+declare void @foo2(i8*)
+
+define void @test3() uwtable {
+; CHECK: @test3
+; CHECK-NOT: bb1:
+; CHECK-NOT: bb2:
+; CHECK: invoke
+  %ptr = invoke i8* @_Znwm(i64 1)
+          to label %bb1 unwind label %bb2
+bb1:
+  store i8* %ptr, i8** @glbl
+  unreachable
+bb2:
+  %tmp1 = landingpad { i8*, i32 } personality i32 (i32, i64, i8*, i8*)* @__gxx_personality_v0
+          cleanup
+  resume { i8*, i32 } %tmp1
+}
+declare i32 @__gxx_personality_v0(i32, i64, i8*, i8*)
+declare i8* @_Znwm(i64)