new testcase distilled from mesa

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22842 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/Transforms/LoopStrengthReduce/2005-08-17-OutOfLoopVariant.ll b/test/Transforms/LoopStrengthReduce/2005-08-17-OutOfLoopVariant.ll
new file mode 100644 (file)
index 0000000..77d118a
--- /dev/null
+++ b/test/Transforms/LoopStrengthReduce/2005-08-17-OutOfLoopVariant.ll
@@ -0,0 +1,18 @@
+; RUN: llvm-as < %s | opt -loop-reduce -disable-output
+
+int %image_to_texture(uint %indvar454) {
+loopentry.1.outer:
+       %j.2.1.ph = cast uint %indvar454 to int         ; <int> [#uses=1]
+       br label %loopentry.1
+
+loopentry.1:           ; preds = %label.5, %loopentry.1.outer
+       %i.3 = phi int [ 0, %loopentry.1.outer ], [ %i.3.be, %loopentry.1 ]
+       %tmp.390 = load int* null               ; <int> [#uses=1]
+       %tmp.392 = mul int %tmp.390, %j.2.1.ph          ; <int> [#uses=1]
+       %tmp.394 = add int %tmp.392, %i.3               ; <int> [#uses=1]
+       %i.3.be = add int %i.3, 1               ; <int> [#uses=1]
+       br bool false, label %loopentry.1, label %label.6
+
+label.6:               ; preds = %no_exit.1
+       ret int %tmp.394
+}