New testcase, reduced from 256.bzip2

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12492 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/Transforms/CodeExtractor/2004-03-17-MissedLiveIns.ll b/test/Transforms/CodeExtractor/2004-03-17-MissedLiveIns.ll
new file mode 100644 (file)
index 0000000..3c65f9d
--- /dev/null
+++ b/test/Transforms/CodeExtractor/2004-03-17-MissedLiveIns.ll
@@ -0,0 +1,47 @@
+; RUN: llvm-as < %s | opt -loop-extract -disable-output
+
+void %sendMTFValues() {
+entry:
+       br bool false, label %then.1, label %endif.1
+
+then.1:                ; preds = %entry
+       br bool false, label %loopentry.6.preheader, label %else.0
+
+endif.1:               ; preds = %entry
+       ret void
+
+else.0:                ; preds = %then.1
+       ret void
+
+loopentry.6.preheader:         ; preds = %then.1
+       br bool false, label %endif.7.preheader, label %loopexit.9
+
+endif.7.preheader:             ; preds = %loopentry.6.preheader
+       %tmp.183 = add int 0, -1                ; <int> [#uses=1]
+       br label %endif.7
+
+endif.7:               ; preds = %endif.7.preheader, %loopexit.15
+       br bool false, label %loopentry.10, label %loopentry.12
+
+loopentry.10:          ; preds = %endif.7
+       br label %loopentry.12
+
+loopentry.12:          ; preds = %endif.7, %loopentry.10
+       %ge.2.1 = phi int [ 0, %loopentry.10 ], [ %tmp.183, %endif.7 ]          ; <int> [#uses=0]
+       br bool false, label %loopexit.14, label %no_exit.11
+
+no_exit.11:            ; preds = %loopentry.12
+       ret void
+
+loopexit.14:           ; preds = %loopentry.12
+       br bool false, label %loopexit.15, label %no_exit.14
+
+no_exit.14:            ; preds = %loopexit.14
+       ret void
+
+loopexit.15:           ; preds = %loopexit.14
+       br bool false, label %endif.7, label %loopexit.9
+
+loopexit.9:            ; preds = %loopentry.6.preheader, %loopexit.15
+       ret void
+}