From: Chris Lattner <sabre@nondot.org>
Date: Sun, 22 Feb 2004 05:24:09 +0000 (+0000)
Subject: Test that the instruction combiner can fold away a cast in a GEP instruction.
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=0ca4418b955f4497eea7f573164aa0afff629902;p=oota-llvm.git

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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11701 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/test/Transforms/InstCombine/cast.ll b/test/Transforms/InstCombine/cast.ll
index 11d95ca7e56..53e2c2e25de 100644
--- a/test/Transforms/InstCombine/cast.ll
+++ b/test/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
+}