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ipa-fnsummary.c: fix use-after-free crash (PR jit/82826)

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gcc/ChangeLog:
	PR jit/82826
	* ipa-fnsummary.c (ipa_fnsummary_c_finalize): New function.
	* ipa-fnsummary.h (ipa_fnsummary_c_finalize): New decl.
	* toplev.c: Include "ipa-fnsummary.h".
	(toplev::finalize): Call ipa_fnsummary_c_finalize.

From-SVN: r254458
This commit is contained in:
David Malcolm 2017-11-06 16:31:04 +00:00 committed by David Malcolm
parent 3e2927a1b0
commit de4381a4e9
4 changed files with 21 additions and 0 deletions
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8
gcc/ChangeLog
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@ -1,3 +1,11 @@
2017-11-06 David Malcolm <dmalcolm@redhat.com>
PR jit/82826
* ipa-fnsummary.c (ipa_fnsummary_c_finalize): New function.
* ipa-fnsummary.h (ipa_fnsummary_c_finalize): New decl.
* toplev.c: Include "ipa-fnsummary.h".
(toplev::finalize): Call ipa_fnsummary_c_finalize.
2017-11-06 Jakub Jelinek <jakub@redhat.com>
PR tree-optimization/82838

9
gcc/ipa-fnsummary.c
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@ -3619,3 +3619,12 @@ make_pass_ipa_fn_summary (gcc::context *ctxt)
{
return new pass_ipa_fn_summary (ctxt);
}
/* Reset all state within ipa-fnsummary.c so that we can rerun the compiler
within the same process. For use by toplev::finalize. */
void
ipa_fnsummary_c_finalize (void)
{
ipa_free_fn_summary ();
}

2
gcc/ipa-fnsummary.h
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@ -266,4 +266,6 @@ void estimate_node_size_and_time (struct cgraph_node *node,
vec<inline_param_summary>
inline_param_summary);
void ipa_fnsummary_c_finalize (void);
#endif /* GCC_IPA_FNSUMMARY_H */

2
gcc/toplev.c
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@ -83,6 +83,7 @@ along with GCC; see the file COPYING3. If not see
#include "edit-context.h"
#include "tree-pass.h"
#include "dumpfile.h"
#include "ipa-fnsummary.h"
#if defined(DBX_DEBUGGING_INFO) || defined(XCOFF_DEBUGGING_INFO)
#include "dbxout.h"
@ -2236,6 +2237,7 @@ toplev::finalize (void)
/* Needs to be called before cgraph_c_finalize since it uses symtab. */
ipa_reference_c_finalize ();
ipa_fnsummary_c_finalize ();
cgraph_c_finalize ();
cgraphunit_c_finalize ();