Add two test-cases for (PR middle-end/82404).

2017-12-20  Martin Liska  <mliska@suse.cz>

	PR middle-end/82404
	* g++.dg/pr82404.C: New test.
	* gcc.dg/pr82404.c: New test.

From-SVN: r255851

gcc/testsuite/ChangeLog

+2017-12-20  Martin Liska  <mliska@suse.cz>
+
+	PR middle-end/82404
+	* g++.dg/pr82404.C: New test.
+	* gcc.dg/pr82404.c: New test.
+
 2017-12-20  Julia Koval  <julia.koval@intel.com>
 
 	* gcc.target/i386/avx-1.c: Handle new intrinsics.

gcc/testsuite/g++.dg/pr82404.C

+// PR middle-end/82404
+
+// { dg-do compile }
+// { dg-options "-O3 -Wall -fdump-tree-optimized -Wno-return-type" } 
+
+enum eShape { eSquare, eCircle, eShpere, eTetraeder };
+
+double test_switch_native(enum eShape shape, double r) {
+    switch(shape) {
+    case eSquare:    return 2;
+    case eCircle:    return 3;
+    case eShpere:    return 4;
+    case eTetraeder: return 5;
+    }
+}
+
+// { dg-final { scan-tree-dump-not "if "  optimized } }

gcc/testsuite/gcc.dg/pr82404.c

+// PR middle-end/82404
+
+// { dg-do compile }
+// { dg-options "-O3 -Wall -fdump-tree-optimized -Wno-return-type" } 
+
+enum eShape { eSquare, eCircle, eShpere, eTetraeder };
+
+double test_switch_native(enum eShape shape, double r) {
+    switch(shape) {
+    case eSquare:    return 2;
+    case eCircle:    return 3;
+    case eShpere:    return 4;
+    case eTetraeder: return 5;
+    }
+}
+
+// { dg-final { scan-tree-dump-times "if " 1 optimized } }