re PR tree-optimization/40570 (ICE with recursion at -O3)

2009-07-30  Martin Jambor  <mjambor@suse.cz>

	PR tree-optimization/40570
	* ipa-inline.c (cgraph_decide_inlining): Watch out for dead single
	use inlining loops.

	* testsuite/gcc.c-torture/compile/pr40570.c: New test.

From-SVN: r150263

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index ca374c343d1c1e2db814501008eb1802277e0bdd..f5b3ba34104665168c31bb3233e35f4262fa953f 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2009-07-30  Martin Jambor  <mjambor@suse.cz>
+
+       PR tree-optimization/40570
+       * ipa-inline.c (cgraph_decide_inlining): Watch out for dead single
+       use inlining loops.
+
 2009-07-30  Razya Ladelsky <razya@il.ibm.com>
 
        * ssa-loop-manip.c: Include langhooks.h.

diff --git a/gcc/ipa-inline.c b/gcc/ipa-inline.c
index 040096fa0d10b6e68c3f01157c1dd4a838d4e5aa..dde8181c86cd4ec774906a5127948be7c3d8efb5 100644 (file)
--- a/gcc/ipa-inline.c
+++ b/gcc/ipa-inline.c
@@ -1227,6 +1227,8 @@ cgraph_decide_inlining (void)
              && !node->needed
              && node->local.inlinable
              && node->callers->inline_failed
+             && node->callers->caller != node
+             && node->callers->caller->global.inlined_to != node
              && !gimple_call_cannot_inline_p (node->callers->call_stmt)
              && !DECL_EXTERNAL (node->decl)
              && !DECL_COMDAT (node->decl))

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index e3b61034dc946ac7403c4baeb5d7fbafb0e09610..f86fc53c2fdeb19b59e40babd13922efd5e9331b 100644 (file)
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2009-07-30  Martin Jambor  <mjambor@suse.cz>
+
+       PR tree-optimization/40570
+       * gcc.c-torture/compile/pr40570.c: New test.
+
 2009-07-29  Jason Merrill  <jason@redhat.com>
 
        PR c++/14912

diff --git a/gcc/testsuite/gcc.c-torture/compile/pr40570.c b/gcc/testsuite/gcc.c-torture/compile/pr40570.c
new file mode 100644 (file)
index 0000000..7c3f4d8
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/compile/pr40570.c
@@ -0,0 +1,22 @@
+extern void anything(int);
+
+static int foo(int i);
+
+static int bar(int i) { foo(i); }
+
+extern int j;
+
+static int foo(int i)
+{
+  if (j)
+    anything(j);
+  return bar(i);
+}
+
+int baz()
+{
+  foo(0);
+  if (baz())
+    return 1;
+  return 0;
+}