[Bug ipa/65305] New: [5 regression] FAIL: gcc.target/i386/chkp-strchr.c and FAIL: gcc.target/i386/pr63995-2.c

[Bug ipa/65305] New: [5 regression] FAIL: gcc.target/i386/chkp-strchr.c and FAIL: gcc.target/i386/pr63995-2.c

[hjl.tools at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65305

            Bug ID: 65305
           Summary: [5 regression] FAIL: gcc.target/i386/chkp-strchr.c and
                    FAIL: gcc.target/i386/pr63995-2.c
           Product: gcc
           Version: 5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: ipa
          Assignee: unassigned at gcc dot gnu.org
          Reporter: hjl.tools at gmail dot com
                CC: ienkovich at gcc dot gnu.org

On Linux/x86, r221149 gave

FAIL: gcc.target/i386/chkp-strchr.c (internal compiler error)
FAIL: gcc.target/i386/chkp-strchr.c (test for excess errors)
FAIL: gcc.target/i386/pr63995-2.c (internal compiler error)
FAIL: gcc.target/i386/pr63995-2.c (test for excess errors)

[hjl@gnu-6 gcc]$ ./xgcc -B./ -O2 -g -fcheck-pointer-bounds -mmpx
/export/gnu/import/git/sources/gcc/gcc/testsuite/gcc.target/i386/pr63995-2.c
/export/gnu/import/git/sources/gcc/gcc/testsuite/gcc.target/i386/pr63995-2.c:
In function ‘init.chkp’:
/export/gnu/import/git/sources/gcc/gcc/testsuite/gcc.target/i386/pr63995-2.c:28:1:
internal compiler error: Segmentation fault
 }
 ^
0xd23b34 crash_signal
    /export/gnu/import/git/sources/gcc/gcc/toplev.c:383
0xe334f1 gimple_code
    /export/gnu/import/git/sources/gcc/gcc/gimple.h:1553
0xe33f66 gimple_call_num_args
    /export/gnu/import/git/sources/gcc/gcc/gimple.h:2843
0xe42a81 ipa_sra_check_caller
    /export/gnu/import/git/sources/gcc/gcc/tree-sra.c:5039
0x83bfb8 cgraph_node::call_for_symbol_thunks_and_aliases(bool (*)(cgraph_node*,
void*), void*, bool, bool)
    /export/gnu/import/git/sources/gcc/gcc/cgraph.c:2192
0xe42f0c ipa_sra_preliminary_function_checks
    /export/gnu/import/git/sources/gcc/gcc/tree-sra.c:5134
0xe42fb6 ipa_early_sra
    /export/gnu/import/git/sources/gcc/gcc/tree-sra.c:5163
0xe43306 execute
    /export/gnu/import/git/sources/gcc/gcc/tree-sra.c:5268
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.
[hjl@gnu-6 gcc]$ 

r221131 is OK.
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From: "hubicka at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug ipa/65287] [5 Regression] Current trunk ICE in address_matters_p, at symtab.c:1908
Date: Tue, 03 Mar 2015 17:32:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?ide287

--- Comment #8 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
Author: hubicka
Date: Tue Mar  3 17:32:21 2015
New Revision: 221156

URL: https://gcc.gnu.org/viewcvs?rev"1156&root=gcc&view=rev
Log:
    PR ipa/65287
    * ipa-icf.c (sem_variable::parse): Skip all alias variables.
    * gcc.dg/ipa/pr65287.c: New test.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/ipa-icf.c
    trunk/gcc/testsuite/ChangeLog

[Bug ipa/65305] [5 regression] FAIL: gcc.target/i386/chkp-strchr.c and FAIL: gcc.target/i386/pr63995-2.c

[hjl.tools at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65305

H.J. Lu <hjl.tools at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2015-03-03
                 CC|                            |jamborm at gcc dot gnu.org
     Ever confirmed|0                           |1

--- Comment #1 from H.J. Lu <hjl.tools at gmail dot com> ---
It is caused by r221148.

[Bug ipa/65305] [5 regression] FAIL: gcc.target/i386/chkp-strchr.c and FAIL: gcc.target/i386/pr63995-2.c

[ebotcazou at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65305

Eric Botcazou <ebotcazou at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |ebotcazou at gcc dot gnu.org

--- Comment #2 from Eric Botcazou <ebotcazou at gcc dot gnu.org> ---
It looks like we can now have cgraph_edge with null call_stmt so:

Index: tree-sra.c
===================================================================
--- tree-sra.c  (revision 221159)
+++ tree-sra.c  (working copy)
@@ -5036,6 +5036,8 @@ ipa_sra_check_caller (struct cgraph_node
   for (cgraph_edge *cs = node->callers; cs; cs = cs->next_caller)
     {
       gimple call_stmt = cs->call_stmt;
+      if (!call_stmt)
+       continue;
       unsigned count = gimple_call_num_args (call_stmt);
       for (unsigned i = 0; i < count; i++)
        {

is very likely the way to go.

[Bug ipa/65305] [5 regression] FAIL: gcc.target/i386/chkp-strchr.c and FAIL: gcc.target/i386/pr63995-2.c

[ebotcazou at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65305

Eric Botcazou <ebotcazou at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

--- Comment #3 from Eric Botcazou <ebotcazou at gcc dot gnu.org> ---
Presumably fixed by Jan's patch.