1 files changed, 64 insertions, 0 deletions
diff --git a/test/CodeGen/Hexagon/hwloop-recursion.ll b/test/CodeGen/Hexagon/hwloop-recursion.ll
new file mode 100644
index 000000000000..8ab2dc37d021
--- /dev/null
+++ b/test/CodeGen/Hexagon/hwloop-recursion.ll
@@ -0,0 +1,64 @@
+; RUN: llc -O2 -march=hexagon -mcpu=hexagonv5 < %s
+; REQUIRES: asserts
+; Check for successful compilation.
+
+@c = common global i32 0, align 4
+@e = common global i32 0, align 4
+@g = common global i32* null, align 4
+@a = common global i32 0, align 4
+@b = common global i32 0, align 4
+@h = common global i32* null, align 4
+@d = common global i32 0, align 4
+@f = common global i32 0, align 4
+
+define i32 @fn1([0 x i32]* nocapture readnone %p1) #0 {
+entry:
+  %0 = load i32*, i32** @h, align 4
+  %1 = load i32*, i32** @g, align 4
+  %.pre = load i32, i32* @c, align 4
+  br label %for.cond
+
+for.cond:
+  %2 = phi i32 [ %10, %if.end ], [ %.pre, %entry ]
+  store i32 %2, i32* @e, align 4
+  %tobool5 = icmp eq i32 %2, 0
+  br i1 %tobool5, label %for.end, label %for.body.lr.ph
+
+for.body.lr.ph:
+  %3 = sub i32 -5, %2
+  %4 = urem i32 %3, 5
+  %5 = sub i32 %3, %4
+  br label %for.body
+
+for.body:
+  %add6 = phi i32 [ %2, %for.body.lr.ph ], [ %add, %for.body ]
+  %6 = load i32, i32* %1, align 4
+  store i32 %6, i32* @a, align 4
+  %add = add nsw i32 %add6, 5
+  %tobool = icmp eq i32 %add, 0
+  br i1 %tobool, label %for.cond1.for.end_crit_edge, label %for.body
+
+for.cond1.for.end_crit_edge:
+  %7 = add i32 %2, 5
+  %8 = add i32 %7, %5
+  store i32 %8, i32* @e, align 4
+  br label %for.end
+
+for.end:
+  %9 = load i32, i32* @b, align 4
+  %tobool2 = icmp eq i32 %9, 0
+  br i1 %tobool2, label %if.end, label %if.then
+
+if.then:
+  store i32 0, i32* %0, align 4
+  %.pre7 = load i32, i32* @c, align 4
+  br label %if.end
+
+if.end:
+  %10 = phi i32 [ %2, %for.end ], [ %.pre7, %if.then ]
+  store i32 %10, i32* @d, align 4
+  %11 = load i32, i32* @f, align 4
+  %inc = add nsw i32 %11, 1
+  store i32 %inc, i32* @f, align 4
+  br label %for.cond
+}