Add a test for the LCSSA issue I just fixed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29077 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/Transforms/LCSSA/2006-07-09-NoDominator.ll b/test/Transforms/LCSSA/2006-07-09-NoDominator.ll
new file mode 100644 (file)
index 0000000..5421139
--- /dev/null
+++ b/test/Transforms/LCSSA/2006-07-09-NoDominator.ll
@@ -0,0 +1,31 @@
+; RUN: llvm-as < %s | opt -lcssa
+
+       %struct.SetJmpMapEntry = type { sbyte*, uint, %struct.SetJmpMapEntry* }
+
+implementation   ; Functions:
+
+void %__llvm_sjljeh_try_catching_longjmp_exception() {
+entry:
+       br label %loopentry
+
+loopentry:             ; preds = %endif, %entry
+       %SJE.0 = phi %struct.SetJmpMapEntry* [ null, %entry ], [ %tmp.25, %endif ]              ; <%struct.SetJmpMapEntry*> [#uses=1]
+       br bool false, label %no_exit, label %loopexit
+
+no_exit:               ; preds = %loopentry
+       br bool false, label %then, label %endif
+
+then:          ; preds = %no_exit
+       %tmp.21 = getelementptr %struct.SetJmpMapEntry* %SJE.0, int 0, uint 1           ; <uint*> [#uses=0]
+       br label %return
+
+endif:         ; preds = %after_ret.0, %no_exit
+       %tmp.25 = load %struct.SetJmpMapEntry** null            ; <%struct.SetJmpMapEntry*> [#uses=1]
+       br label %loopentry
+
+loopexit:              ; preds = %loopentry
+       br label %return
+
+return:                ; preds = %after_ret.1, %loopexit, %then
+       ret void
+}