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-rw-r--r--test/Analysis/ScalarEvolution/2008-02-12-SMAXTripCount.ll16
1 files changed, 16 insertions, 0 deletions
diff --git a/test/Analysis/ScalarEvolution/2008-02-12-SMAXTripCount.ll b/test/Analysis/ScalarEvolution/2008-02-12-SMAXTripCount.ll
new file mode 100644
index 0000000..292ea99
--- /dev/null
+++ b/test/Analysis/ScalarEvolution/2008-02-12-SMAXTripCount.ll
@@ -0,0 +1,16 @@
+; RUN: llvm-as < %s | opt -scalar-evolution -analyze | grep {Loop loop: ( 100 + ( -100 smax %n)) iterations!}
+; PR2002
+
+define void @foo(i8 %n) {
+entry:
+ br label %loop
+loop:
+ %i = phi i8 [ -100, %entry ], [ %i.inc, %next ]
+ %cond = icmp slt i8 %i, %n
+ br i1 %cond, label %next, label %return
+next:
+ %i.inc = add i8 %i, 1
+ br label %loop
+return:
+ ret void
+}