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-rw-r--r--gcc/testsuite/gcc.dg/tree-ssa/20030807-1.c46
1 files changed, 46 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/20030807-1.c b/gcc/testsuite/gcc.dg/tree-ssa/20030807-1.c
new file mode 100644
index 00000000000..ab013d3d9fc
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/20030807-1.c
@@ -0,0 +1,46 @@
+/* { dg-do compile } */
+/* { dg-options "-O1 -fdump-tree-dom3" } */
+
+struct rtx_def;
+typedef struct rtx_def *rtx;
+
+
+
+union rtunion_def
+{
+ int rtint;
+};
+typedef union rtunion_def rtunion;
+
+
+
+struct rtx_def
+{
+ rtunion fld[1];
+
+};
+
+static int *uid_cuid;
+static int max_uid_cuid;
+
+static rtx
+bar (rtx r)
+{
+ rtx place = r;
+
+ if (place->fld[0].rtint <= max_uid_cuid
+ && (place->fld[0].rtint > max_uid_cuid ? insn_cuid (place) :
+ uid_cuid[place->fld[0].rtint]))
+ return r;
+
+ return 0;
+}
+
+/* There should be two IF conditionals. One tests <= max_uid_cuid, the
+ other tets the value in uid_cuid. If either is false the jumps
+ are threaded to the return 0. Which in turn means the path
+ which combines the result of those two tests into a new test
+ must always be true and it is optimized appropriately. */
+/* { dg-final { scan-tree-dump-times "if " 2 "dom3"} } */
+
+