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[committed] Add testcase for already fixed PR (PR tree-optimization/83283)

Message ID 20171205133622.GV2353@tucnak
State New
Headers show
Series [committed] Add testcase for already fixed PR (PR tree-optimization/83283) | expand

Commit Message

Jakub Jelinek Dec. 5, 2017, 1:36 p.m. UTC 
Hi!

This testcase has been fixed by r253146 but that testcase is quite different
from this one, so I've committed this to trunk as obvious.

2017-12-05  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/83283
	* g++.dg/torture/pr83283.C: New test.


	Jakub
diff mbox series

Patch

--- gcc/testsuite/g++.dg/torture/pr83283.C.jj	2017-12-05 13:01:03.432144366 +0100
+++ gcc/testsuite/g++.dg/torture/pr83283.C	2017-12-05 13:00:55.926238921 +0100
@@ -0,0 +1,26 @@ 
+// PR tree-optimization/83283
+// { dg-do run }
+// { dg-additional-options "-std=c++11" }
+
+enum E : unsigned char { X = 0, Y = 1 };
+
+void __attribute__((noinline))
+foo (E *v, int size)
+{
+  for (int i = 0; i < size; ++i)
+    {
+      const bool b = (v[i] == E::Y);
+      v[i] = static_cast<E>(static_cast<unsigned char>(b));
+    }
+}
+
+int
+main ()
+{
+  constexpr int items = 32;
+  E vals[items] = {X};
+  vals[3] = Y;
+  foo (vals, items);
+  if (vals[3] != 1)
+    __builtin_abort ();
+}