New test case

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/intervals.ll b/test/intervals.ll
new file mode 100644 (file)
index 0000000..e355ff8
--- /dev/null
+++ b/test/intervals.ll
@@ -0,0 +1,29 @@
+implementation
+
+;; This is a simple nested loop to test interval construction
+
+int "loop test"(int %i, int %j)
+begin
+Start:
+       %j1 = add int 0, 0
+       br label %L1Header
+
+L1Header:
+       %j2 = phi int [%j1, %Start], [%j3, %L2Done]
+
+       %i1 = add int 0, 0             ; %i1 = 0
+       br label %L2Body
+L2Body:
+       %i2 = phi int [%i1, %L1Header], [%i3, %L2Body]
+       %i3 = add int %i2, 1
+       %L2Done = seteq int %i3, 10
+       br bool %L2Done, label %L2Done, label %L2Body
+L2Done:
+       %j3 = add int %j2, %i3
+       %L1Done = seteq int %j3, 100
+       br bool %L1Done, label %L1Done, label %L1Header
+
+L1Done:
+       ret int %j3
+end
+