From 9c08d09de6a141c9331fb8c6f05b07123082e513 Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Sun, 22 Feb 2004 05:24:09 +0000
Subject: [PATCH] Test that the instruction combiner can fold away a cast in a
 GEP instruction. This occurs in 164.gzip, as a result of it declaring arrays
 extern.

llvm-svn: 11701
---
 llvm/test/Regression/Transforms/InstCombine/cast.ll | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/llvm/test/Regression/Transforms/InstCombine/cast.ll b/llvm/test/Regression/Transforms/InstCombine/cast.ll
index 11d95ca7e560..53e2c2e25de0 100644
--- a/llvm/test/Regression/Transforms/InstCombine/cast.ll
+++ b/llvm/test/Regression/Transforms/InstCombine/cast.ll
@@ -2,6 +2,8 @@
 
 ; RUN: llvm-as < %s | opt -instcombine -die | llvm-dis | grep '%c' | not grep cast
 
+%inbuf = external global [32832 x ubyte]
+
 implementation
 
 int %test1(int %A) {
@@ -79,3 +81,9 @@ int* %test12() {
 	%c = cast [4 x sbyte]* %p to int*
 	ret int* %c
 }
+
+
+ubyte *%test13(long %A) {
+	%c = getelementptr [0 x ubyte]* cast ([32832 x ubyte]*  %inbuf to [0 x ubyte]*), long 0, long %A
+	ret ubyte* %c
+}