From: Chris Lattner <sabre@nondot.org>
Date: Wed, 10 Aug 2005 00:48:11 +0000 (+0000)
Subject: new testcase we handle
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=138268160adf9bd1c31a213ec74d1b3effb10856;p=oota-llvm.git

new testcase we handle


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22741 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/test/Transforms/LoopStrengthReduce/variable_stride.ll b/test/Transforms/LoopStrengthReduce/variable_stride.ll
new file mode 100644
index 00000000000..25103bff1a0
--- /dev/null
+++ b/test/Transforms/LoopStrengthReduce/variable_stride.ll
@@ -0,0 +1,17 @@
+; Check that variable strides are reduced to adds instead of multiplies.
+; RUN: llvm-as < %s | opt -loop-reduce | llvm-dis | not grep 'mul'
+
+declare bool %pred(int)
+
+void %test([10000 x int]* %P, int %STRIDE) {
+	br label %Loop
+Loop:
+	%INDVAR = phi int [0, %0], [%INDVAR2, %Loop]
+	%Idx = mul int %INDVAR, %STRIDE
+
+	%cond = call bool %pred(int %Idx)
+	%INDVAR2 = add int %INDVAR, 1
+	br bool %cond, label %Loop, label %Out
+Out:
+	ret void
+}