From: Andrew Lenharth <andrewl@lenharth.org>
Date: Tue, 19 Sep 2006 18:23:39 +0000 (+0000)
Subject: Inspired by the linux kernel, the more we keep adds in the pointer realm, the better... 
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=e454200b954c8ffc4f7e348376833fcab855dd51;p=oota-llvm.git

Inspired by the linux kernel, the more we keep adds in the pointer realm, the better pointer analysis works.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30495 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/test/Transforms/InstCombine/cast_ptr.ll b/test/Transforms/InstCombine/cast_ptr.ll
new file mode 100644
index 00000000000..be0a8970dce
--- /dev/null
+++ b/test/Transforms/InstCombine/cast_ptr.ll
@@ -0,0 +1,15 @@
+; Tests to make sure elimination of casts is working correctly
+; RUN: llvm-as < %s | opt -instcombine -disable-output &&
+; RUN: llvm-as < %s | opt -instcombine | llvm-dis | not grep cast
+
+target pointersize = 32
+
+implementation
+
+sbyte* %test1(sbyte* %t) {
+	%tmpc = cast sbyte* %t to uint
+	%tmpa = add uint %tmpc, 32
+	%tv = cast uint %tmpa to sbyte*
+	ret sbyte* %tv
+}
+