ipa/106124 - ICE with -fkeep-inline-functions and OpenMP
Commit Message
The testcases in this bug reveal cases where an early generated
type is collected because it was unused but gets attempted to
be recreated later when a late DIE for a function (an OpenMP
reduction) is created. That's unexpected and possibly the fault
of OpenMP but the following allows the re-creation of the context
type to succeed.
Bootstrapped and tested on x86_64-unknown-linux-gnu.
OK?
Thanks,
Richard.
PR ipa/106124
* dwarf2out.cc (lookup_type_die): Reset TREE_ASM_WRITTEN
so we can re-create the DIE for the type if required.
* g++.dg/gomp/pr106124.C: New testcase.
---
gcc/dwarf2out.cc | 1 +
gcc/testsuite/g++.dg/gomp/pr106124.C | 19 +++++++++++++++++++
2 files changed, 20 insertions(+)
create mode 100644 gcc/testsuite/g++.dg/gomp/pr106124.C
@@ -5894,6 +5894,7 @@ lookup_type_die (tree type)
if (die && die->removed)
{
TYPE_SYMTAB_DIE (type) = NULL;
+ TREE_ASM_WRITTEN (type) = 0;
return NULL;
}
return die;
new file mode 100644
@@ -0,0 +1,19 @@
+// { dg-do compile }
+// { dg-require-effective-target c++11 }
+// { dg-options "-g -O2 -fopenmp -fkeep-inline-functions" }
+
+int q;
+struct A
+{
+ typedef int T;
+#pragma omp declare reduction (x : T : omp_out += omp_in + [] (){ return q; }()) initializer (omp_priv = [](){ return 0; }())
+ static void foo ();
+};
+void bar (int &, int &);
+void
+A::foo ()
+{
+ int r = 0, s = 0;
+#pragma omp parallel reduction (x : r, s)
+ bar (r, s);
+}