New test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37823 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/CodeGen/X86/2007-06-29-DAGCombinerBug.ll b/test/CodeGen/X86/2007-06-29-DAGCombinerBug.ll
new file mode 100644 (file)
index 0000000..eaedb52
--- /dev/null
+++ b/test/CodeGen/X86/2007-06-29-DAGCombinerBug.ll
@@ -0,0 +1,50 @@
+; RUN: llvm-as < %s | | llc -march=x86 -mattr=+sse2
+
+define void @test() {
+entry:
+       br i1 false, label %bb13944.preheader, label %cond_true418
+
+cond_true418:          ; preds = %entry
+       ret void
+
+bb13944.preheader:             ; preds = %entry
+       br i1 false, label %bb3517, label %bb13968.preheader
+
+bb3517:                ; preds = %bb13944.preheader
+       br i1 false, label %cond_false7408, label %cond_next11422
+
+cond_false7408:                ; preds = %bb3517
+       switch i32 0, label %cond_false10578 [
+                i32 7, label %cond_next11422
+                i32 6, label %cond_true7828
+                i32 1, label %cond_true10095
+                i32 3, label %cond_true10095
+                i32 5, label %cond_true10176
+                i32 24, label %cond_true10176
+       ]
+
+cond_true7828:         ; preds = %cond_false7408
+       br i1 false, label %cond_next8191, label %cond_true8045
+
+cond_true8045:         ; preds = %cond_true7828
+       ret void
+
+cond_next8191:         ; preds = %cond_true7828
+       %tmp8234 = sub <4 x i32> < i32 939524096, i32 939524096, i32 939524096, i32 939524096 >, zeroinitializer                ; <<4 x i32>> [#uses=0]
+       ret void
+
+cond_true10095:                ; preds = %cond_false7408, %cond_false7408
+       ret void
+
+cond_true10176:                ; preds = %cond_false7408, %cond_false7408
+       ret void
+
+cond_false10578:               ; preds = %cond_false7408
+       ret void
+
+cond_next11422:                ; preds = %cond_false7408, %bb3517
+       ret void
+
+bb13968.preheader:             ; preds = %bb13944.preheader
+       ret void
+}