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re PR middle-end/65233 (ICE (segfault) on arm-linux-gnueabihf and aarch64-linux-gnu)

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PR middle-end/65233
	* ipa-polymorphic-call.c (walk_ssa_copies): Handle empty PHIs.

From-SVN: r221097
This commit is contained in:
Aldy Hernandez 2015-03-02 05:22:03 +00:00 committed by Aldy Hernandez
parent 4630573709
commit 34a108c813
2 changed files with 9 additions and 1 deletions
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gcc/ChangeLog
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@ -1,3 +1,8 @@
2015-03-01 Aldy Hernandez <aldyh@redhat.com>
PR middle-end/65233
* ipa-polymorphic-call.c (walk_ssa_copies): Handle empty PHIs.
2015-02-28 Jan Hubicka <hubicka@ucw.cz>
* ipa-icf.c: Include stor-layout.h

5
gcc/ipa-polymorphic-call.c
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@ -835,7 +835,10 @@ walk_ssa_copies (tree op, hash_set<tree> **global_visited = NULL)
{
gimple phi = SSA_NAME_DEF_STMT (op);
if (gimple_phi_num_args (phi) > 2)
if (gimple_phi_num_args (phi) > 2
/* We can be called while cleaning up the CFG and can
have empty PHIs about to be removed. */
|| gimple_phi_num_args (phi) == 0)
goto done;
if (gimple_phi_num_args (phi) == 1)
op = gimple_phi_arg_def (phi, 0);