Test case for a SETCC / BRCOND folding bug.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25258 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/CodeGen/Generic/2006-01-12-BadSetCCFold.ll b/test/CodeGen/Generic/2006-01-12-BadSetCCFold.ll
new file mode 100644 (file)
index 0000000..fb5092a
--- /dev/null
+++ b/test/CodeGen/Generic/2006-01-12-BadSetCCFold.ll
@@ -0,0 +1,39 @@
+; RUN: llvm-as < %s | llc
+
+target endian = little
+target pointersize = 32
+       %struct.node_t = type { double*, %struct.node_t*, %struct.node_t**, double**, double*, int, int }
+
+implementation   ; Functions:
+
+void %main() {
+entry:
+       br bool false, label %then.2.i, label %endif.2.i
+
+then.2.i:              ; preds = %entry
+       br label %dealwithargs.exit
+
+endif.2.i:             ; preds = %entry
+       br bool false, label %then.3.i, label %dealwithargs.exit
+
+then.3.i:              ; preds = %endif.2.i
+       br label %dealwithargs.exit
+
+dealwithargs.exit:             ; preds = %then.3.i, %endif.2.i, %then.2.i
+       %n_nodes.4 = phi int [ 64, %then.3.i ], [ 64, %then.2.i ], [ 64, %endif.2.i ]           ; <int> [#uses=1]
+       %tmp.14.i1134.i.i = setgt int %n_nodes.4, 1             ; <bool> [#uses=2]
+       br bool %tmp.14.i1134.i.i, label %no_exit.i12.i.i, label %fill_table.exit22.i.i
+
+no_exit.i12.i.i:               ; preds = %no_exit.i12.i.i, %dealwithargs.exit
+       br bool false, label %fill_table.exit22.i.i, label %no_exit.i12.i.i
+
+fill_table.exit22.i.i:         ; preds = %no_exit.i12.i.i, %dealwithargs.exit
+       %cur_node.0.i8.1.i.i = phi %struct.node_t* [ undef, %dealwithargs.exit ], [ null, %no_exit.i12.i.i ]            ; <%struct.node_t*> [#uses=0]
+       br bool %tmp.14.i1134.i.i, label %no_exit.i.preheader.i.i, label %make_tables.exit.i
+
+no_exit.i.preheader.i.i:               ; preds = %fill_table.exit22.i.i
+       ret void
+
+make_tables.exit.i:            ; preds = %fill_table.exit22.i.i
+       ret void
+}