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Testcase for PR40874

Message ID alpine.LNX.2.00.1105231633500.810@zhemvz.fhfr.qr
State New
Headers show

Commit Message

Richard Biener May 23, 2011, 2:34 p.m. UTC 
Committed.

2011-05-23  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/40874
	* g++.dg/tree-ssa/pr40874.C: New testcase.
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Patch

Index: gcc/testsuite/g++.dg/tree-ssa/pr40874.C
===================================================================
--- gcc/testsuite/g++.dg/tree-ssa/pr40874.C	(revision 0)
+++ gcc/testsuite/g++.dg/tree-ssa/pr40874.C	(revision 0)
@@ -0,0 +1,25 @@ 
+// { dg-do compile }
+// { dg-options "-O -fdump-tree-optimized" }
+
+struct pf
+{
+  inline pf(int(*x)(int)) : x(x) {}
+
+  inline int operator()(int a) const
+    {
+      return x(a);
+    }
+
+  int (*x)(int);
+};
+
+inline int g(int x) { return x/x - 1; }
+
+int main(int argc, char* argv[])
+{
+  pf f(g);
+  return f(3);
+}
+
+// { dg-final { scan-tree-dump "return 0" "optimized" } }
+// { dg-final { cleanup-tree-dump "optimized" } }