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-rw-r--r--test/Analysis/RegionInfo/Stats/two_loops_same_header.ll46
1 files changed, 46 insertions, 0 deletions
diff --git a/test/Analysis/RegionInfo/Stats/two_loops_same_header.ll b/test/Analysis/RegionInfo/Stats/two_loops_same_header.ll
new file mode 100644
index 0000000000..e75661e890
--- /dev/null
+++ b/test/Analysis/RegionInfo/Stats/two_loops_same_header.ll
@@ -0,0 +1,46 @@
+; RUN: opt -regions -analyze < %s | FileCheck %s
+; RUN: opt -regions -stats < %s 2>&1 | FileCheck -check-prefix=STAT %s
+; RUN: opt -regions -print-region-style=bb -analyze < %s 2>&1 | FileCheck -check-prefix=BBIT %s
+; RUN: opt -regions -print-region-style=rn -analyze < %s 2>&1 | FileCheck -check-prefix=RNIT %s
+
+define internal fastcc zeroext i8 @handle_compress() nounwind {
+entry:
+ br label %outer
+
+outer:
+ br label %body
+
+body:
+ br i1 1, label %else, label %true77
+
+true77:
+ br i1 1, label %then83, label %else
+
+then83:
+ br label %outer
+
+else:
+ br label %else106
+
+else106:
+ br i1 1, label %end, label %outer
+
+end:
+ ret i8 1
+}
+
+; CHECK-NOT: =>
+; CHECK: [0] entry => <Function Return>
+; CHECK-NEXT: [1] outer => end
+; CHECK-NEXT: [2] outer => else
+
+; STAT: 3 region - The # of regions
+; STAT: 1 region - The # of simple regions
+
+; BBIT: entry, outer, body, else, else106, end, true77, then83,
+; BBIT: outer, body, else, else106, true77, then83,
+; BBIT: outer, body, true77, then83,
+
+; RNIT: entry, outer => end, end,
+; RNIT: outer => else, else, else106,
+; RNIT: outer, body, true77, then83,