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Diffstat (limited to 'gcc/testsuite/gcc.dg/tree-ssa/phi-opt-9.c')
-rw-r--r--gcc/testsuite/gcc.dg/tree-ssa/phi-opt-9.c21
1 files changed, 21 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/phi-opt-9.c b/gcc/testsuite/gcc.dg/tree-ssa/phi-opt-9.c
new file mode 100644
index 00000000000..dccea7b0506
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/phi-opt-9.c
@@ -0,0 +1,21 @@
+/* { dg-do compile } */
+/* { dg-options "-O -fdump-tree-optimized" } */
+
+int g(int,int);
+int f(int t, int c)
+{
+ int d = 0;
+ int e = 0;
+ if (t)
+ {
+ d = c+1;
+ e = t;
+ }
+ else d = 0, e = 0;
+ return g(e,d);
+}
+
+/* The value e should have been replaced with t and there should be only one PHI. */
+/* { dg-final { scan-tree-dump "g .t_\[0-9\]*.D.," "optimized" } } */
+/* { dg-final { scan-tree-dump-times "PHI" 1 "optimized" } } */
+/* { dg-final { cleanup-tree-dump "optimized" } } */