Disable statistics on Release builds and move tests that depend on -stats.

[oota-llvm.git] / test / Transforms / LoopUnswitch / Stats / 2008-11-03-Invariant.ll

diff --git a/test/Transforms/LoopUnswitch/Stats/2008-11-03-Invariant.ll b/test/Transforms/LoopUnswitch/Stats/2008-11-03-Invariant.ll
new file mode 100644 (file)
index 0000000..9d73d31
--- /dev/null
+++ b/test/Transforms/LoopUnswitch/Stats/2008-11-03-Invariant.ll
@@ -0,0 +1,36 @@
+; RUN: opt < %s -loop-unswitch -stats -disable-output 2>&1 | grep "1 loop-unswitch - Number of branches unswitched" | count 1
+; PR 3170
+define i32 @a(i32 %x, i32 %y) nounwind {
+entry:
+       %0 = icmp ult i32 0, %y         ; <i1> [#uses=1]
+       br i1 %0, label %bb.nph, label %bb4
+
+bb.nph:                ; preds = %entry
+       %1 = icmp eq i32 %x, 0          ; <i1> [#uses=1]
+       br label %bb
+
+bb:            ; preds = %bb.nph, %bb3
+       %i.01 = phi i32 [ %3, %bb3 ], [ 0, %bb.nph ]            ; <i32> [#uses=1]
+       br i1 %1, label %bb2, label %bb1
+
+bb1:           ; preds = %bb
+       %2 = tail call i32 (...)* @b() nounwind         ; <i32> [#uses=0]
+       br label %bb2
+
+bb2:           ; preds = %bb, %bb1
+       %3 = add i32 %i.01, 1           ; <i32> [#uses=2]
+       br label %bb3
+
+bb3:           ; preds = %bb2
+       %i.0 = phi i32 [ %3, %bb2 ]             ; <i32> [#uses=1]
+       %4 = icmp ult i32 %i.0, %y              ; <i1> [#uses=1]
+       br i1 %4, label %bb, label %bb3.bb4_crit_edge
+
+bb3.bb4_crit_edge:             ; preds = %bb3
+       br label %bb4
+
+bb4:           ; preds = %bb3.bb4_crit_edge, %entry
+       ret i32 0
+}
+
+declare i32 @b(...)