From 2439911ac5f386fd208407afa3b6d2cab670ee2f Mon Sep 17 00:00:00 2001
From: Matthijs Kooijman <matthijs@stdin.nl>
Date: Tue, 15 Jul 2008 14:42:58 +0000
Subject: [PATCH] Add a testcase for the canonicalizations now performed by
 deadargelim.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53611 91177308-0d34-0410-b5e6-96231b3b80d8
---
 test/Transforms/DeadArgElim/canon.ll | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 test/Transforms/DeadArgElim/canon.ll

diff --git a/test/Transforms/DeadArgElim/canon.ll b/test/Transforms/DeadArgElim/canon.ll
new file mode 100644
index 00000000000..b8adb713a7a
--- /dev/null
+++ b/test/Transforms/DeadArgElim/canon.ll
@@ -0,0 +1,24 @@
+; This test shows a few canonicalizations made by deadargelim
+; RUN: llvm-as < %s | opt -deadargelim | llvm-dis > %t
+; This test should remove {} and replace it with void
+; RUN: cat %t | grep {define internal void @test}
+; This test shouls replace the {i32} return value with just i32
+; RUN: cat %t | grep {define internal i32 @test2}
+
+define internal {} @test() {
+  ret {} undef
+}
+
+define internal {i32} @test2() {
+  ret {i32} undef;
+}
+
+define void @caller() {
+  call {} @test()
+  %X = call {i32} @test2();
+  %Y = extractvalue {i32} %X, 0
+  call void @user(i32 %Y, {i32} %X)
+  ret void
+}
+
+declare void @user(i32, {i32})