From f3fbddd3336660b4679e5a4da4129a6d56fd7c0a Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Fri, 19 Mar 2004 06:07:43 +0000
Subject: New testcase, the optimizer can delete zero sized allocas

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12506 91177308-0d34-0410-b5e6-96231b3b80d8
---
 test/Transforms/InstCombine/alloca.ll | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
 create mode 100644 test/Transforms/InstCombine/alloca.ll

(limited to 'test/Transforms/InstCombine/alloca.ll')

diff --git a/test/Transforms/InstCombine/alloca.ll b/test/Transforms/InstCombine/alloca.ll
new file mode 100644
index 0000000000..23a52c328d
--- /dev/null
+++ b/test/Transforms/InstCombine/alloca.ll
@@ -0,0 +1,14 @@
+; Zero byte allocas should be deleted.
+
+; RUN: llvm-as < %s | opt -instcombine | llvm-dis | not grep alloca
+
+declare void %use(...)
+void %test() {
+	%X = alloca [0 x int]
+	call void(...)* %use([0 x int] *%X)
+	%Y = alloca int, uint 0
+	call void(...)* %use(int* %Y)
+	%Z = alloca {}
+	call void(...)* %use({}* %Z)
+	ret void
+}
-- 
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