[PATCH] Fix PR ipa/65557

[Martin Liška]

On 04/30/2015 11:11 PM, Uros Bizjak wrote:
> Hello!
> 
>> 2015-03-29  Martin Liska  <mliska@suse.cz>
>>
>>    PR ipa/65557
>>    * ipa-icf.c (sem_function::equals_wpa): Check if IPA CP
>>    has already filled up function summary.
>>    (sem_item_optimizer::update_hash_by_addr_refs): Likewise.
>>
>> gcc/testsuite/ChangeLog:
>>
>> 2015-03-29  Martin Liska <mliska@suse.cz>
>>
>>    * g++.dg/ipa/pr65557.C: New test.
> 
> --- /dev/null
> +++ b/gcc/testsuite/g++.dg/ipa/pr65557.C
> @@ -0,0 +1,19 @@
> +/* { dg-do compile } */
> +/* { dg-options "-O2 -fdump-ipa-icf-details"  } */
> +
> +struct S0
> +{
> +  S0 ()
> +  {
> +  }
> +};
> +
> +struct S1
> +{
> +  S1 ()
> +  {
> +  }
> +};
> +
> +S0 s0;
> +S1 s1;
> 
> The testcase doesn't clean its IPA dump. However, there is also no
> scan dump function, so it is questionable, what the testcase tries to
> do with the dump. Also, the flags that trigger the bug in the PR are
> different: "-fdevirtualize -fipa-cp -fipa-icf-functions".
> 
> Can you please check the testcase?
> 
> Uros.
> 

Hi.

The test case caused ICE before the patch was applied. So removing -fdump*
is the right fix for the test.

I hope the patch is obvious. Should I also apply the patch for 5.1.0 branch?

Thanks,
Martin
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