Re: GCC 8 backports

["Martin Liška" <mliska@suse.cz>]

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On 2/14/19 12:23 PM, Martin Liška wrote:
> On 11/20/18 11:58 AM, Martin Liška wrote:
>> On 10/3/18 11:23 AM, Martin Liška wrote:
>>> On 9/25/18 8:48 AM, Martin Liška wrote:
>>>> Hi.
>>>>
>>>> One more tested patch.
>>>>
>>>> Martin
>>>>
>>>
>>> One more tested patch.
>>>
>>> Martin
>>>
>>
>> Hi.
>>
>> One another tested patch that I'm going to install.
>>
>> Martin
>>
> 
> Hi.
> 
> Another 2 patches that I've just tested and will install.
> 
> Martin
> 

One more patch.

Martin

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From a434c00b2d9a540152ea149244fa8df97f64def4 Mon Sep 17 00:00:00 2001
From: marxin <mliska@suse.cz>
Date: Thu, 14 Feb 2019 14:25:48 +0100
Subject: [PATCH] Backport r268873

gcc/ChangeLog:

2019-02-14  Martin Liska  <mliska@suse.cz>

	PR rtl-optimization/89242
	* dce.c (delete_unmarked_insns): Call free_dominance_info we
	process a transformation.

gcc/testsuite/ChangeLog:

2019-02-14  Martin Liska  <mliska@suse.cz>

	PR rtl-optimization/89242
	* g++.dg/pr89242.C: New test.
---
 gcc/dce.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/gcc/dce.c b/gcc/dce.c
index 2ef4dd7bd3b..ce2edc43efb 100644
--- a/gcc/dce.c
+++ b/gcc/dce.c
@@ -642,7 +642,10 @@ delete_unmarked_insns (void)
 
   /* Deleted a pure or const call.  */
   if (must_clean)
-    delete_unreachable_blocks ();
+    {
+      delete_unreachable_blocks ();
+      free_dominance_info (CDI_DOMINATORS);
+    }
 }
 
 
-- 
2.20.1