[Bug ipa/64664] New: [5 Regression] ICE: tree check: expected function_decl, have <invalid tree code> in opts_for_fn, at tree.h:4706

[Bug ipa/64664] New: [5 Regression] ICE: tree check: expected function_decl, have <invalid tree code> in opts_for_fn, at tree.h:4706

[trippels at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64664

            Bug ID: 64664
           Summary: [5 Regression] ICE: tree check: expected
                    function_decl, have <invalid tree code> in
                    opts_for_fn, at tree.h:4706
           Product: gcc
           Version: 5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: ipa
          Assignee: unassigned at gcc dot gnu.org
          Reporter: trippels at gcc dot gnu.org
                CC: hubicka at gcc dot gnu.org, marxin at gcc dot gnu.org

I guess either r219822 or r219823 caused the following Firefox build error:

/home/trippels/gcc_test/usr/local/bin/c++ -fPIC -Wall -Wempty-body
-Woverloaded-virtual -Wsign-compare -Wwrite-strings -Werror=endif-labels
-Werror=int-to-pointer-cast -Werror=missing-braces -Werror=pointer-arith
-Werror=return-type -Werror=sequence-point -Werror=unused-label
-Werror=trigraphs -Werror=type-limits -Wno-invalid-offsetof -Wcast-align
-flto=80 --param lto-partitions=80 -mcpu=power8 -ffunction-sections
-fdata-sections -fno-exceptions -fno-strict-aliasing -frtti -fno-exceptions
-fno-math-errno -std=gnu++0x -pthread -pipe -UDEBUG -DNDEBUG -O3
-DU_STATIC_IMPLEMENTATION -fvisibility=hidden -W -Wall -pedantic
-Wpointer-arith -Wwrite-strings -Wno-long-long -Wno-unused
-Wno-unused-parameter   -lpthread
-Wl,--hash-style=gnu,--as-needed,--gc-sections,--icf=all -Wl,-z,noexecstack
-Wl,-z,text -Wl,--build-id -Wl,--gc-sections  -o ../../bin/makeconv makeconv.o
ucnvstat.o genmbcs.o gencnvex.o -L../../lib -licutu -L../../lib -licui18n
-L../../lib -licuuc -L../../stubdata -licudata -lpthread -ldl -lm
lto1: internal compiler error: tree check: expected function_decl, have
<invalid tree code> in opts_for_fn, at tree.h:4706
0x109fcf23 tree_check_failed(tree_node const*, char const*, int, char const*,
...)
        ../../gcc/gcc/tree.c:9290
0x10164e17 tree_check(tree_node const*, char const*, int, char const*,
tree_code)
        ../../gcc/gcc/tree.h:3091
0x10164e17 opts_for_fn
        ../../gcc/gcc/tree.h:4706
0x10d90b33 opts_for_fn
        ../../gcc/gcc/tree.h:2846
0x10d90b33 ipa_icf::sem_item_optimizer::filter_removed_items()
        ../../gcc/gcc/ipa-icf.c:1656
0x10d921bf ipa_icf::sem_item_optimizer::execute()
        ../../gcc/gcc/ipa-icf.c:1703
0x10d930a3 ipa_icf_driver
        ../../gcc/gcc/ipa-icf.c:2460
0x10d930a3 ipa_icf::pass_ipa_icf::execute(function*)
        ../../gcc/gcc/ipa-icf.c:2508
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.
lto-wrapper: fatal error: /home/trippels/gcc_test/usr/local/bin/c++ returned 1
exit status

[Bug ipa/64664] [5 Regression] ICE: tree check: expected function_decl, have <invalid tree code> in opts_for_fn, at tree.h:4706

[trippels at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64664

Markus Trippelsdorf <trippels at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2015-01-19
   Target Milestone|---                         |5.0
     Ever confirmed|0                           |1

--- Comment #1 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
Looking at the patches the culprit is definetely r219823.

[Bug ipa/64664] [5 Regression] ICE: tree check: expected function_decl, have <invalid tree code> in opts_for_fn, at tree.h:4706

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64664

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P3                          |P1

[Bug ipa/64664] [5 Regression] ICE: tree check: expected function_decl, have <invalid tree code> in opts_for_fn, at tree.h:4706

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64664

--- Comment #2 from Martin Liška <marxin at gcc dot gnu.org> ---
Author: marxin
Date: Mon Jan 19 18:07:08 2015
New Revision: 219853

URL: https://gcc.gnu.org/viewcvs?rev=219853&root=gcc&view=rev
Log:
Fix PR64664.

        PR ipa/64664
    * ipa-icf.c (sem_item_optimizer::filter_removed_items):
    Handle safe potentially removed nodes during filtering.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/ipa-icf.c
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64664

Martin Liška <marxin at gcc dot gnu.org> changed:

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

--- Comment #3 from Martin Liška <marxin at gcc dot gnu.org> ---
Fixed in 5.0.0.
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Subject: [Bug sanitizer/64435] [5 Regression] Bootstrap failure in libsanitizer on AArch64 with Linux kernel <= 3.15
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https://gcc.gnu.org/bugzilla/show_bug.cgi?idd435

--- Comment #18 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Jakub Jelinek from comment #17)
> PPC64 actually supports both 44 and 46 bit address space:
>
> uptr GetMaxVirtualAddress() {
> #if SANITIZER_WORDSIZE == 64
> # if defined(__powerpc64__)
>   // On PowerPC64 we have two different address space layouts: 44- and
> 46-bit.
>   // We somehow need to figure out which one we are using now and choose
>   // one of 0x00000fffffffffffUL and 0x00003fffffffffffUL.
>   // Note that with 'ulimit -s unlimited' the stack is moved away from the
> top
>   // of the address space, so simply checking the stack address is not
> enough.
>   // This should (does) work for both PowerPC64 Endian modes.
>   return (1ULL << (MostSignificantSetBitIndex(GET_CURRENT_FRAME()) + 1)) - 1;
> # elif defined(__aarch64__)
>   return (1ULL << 39) - 1;
> # elif defined(__mips64)
>   return (1ULL << 40) - 1;
...
> it is just that aarch64 hardcodes this right now.  Suppose doing something
> like ppc64 does could work.

Even though this is not listed here and does not really belong in this bug but
MIPS64 should be done the same way since it has many different virtual address
sizes as it has many different page sizes too (4k, 8k, 16k, 32k, and 64k).  I
wonder why ASAN folks don't just always use the way PowerPC is done.

[Bug ipa/64664] [5 Regression] ICE: tree check: expected function_decl, have <invalid tree code> in opts_for_fn, at tree.h:4706

[trippels at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64664

Markus Trippelsdorf <trippels at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |hjl.tools at gmail dot com

--- Comment #4 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
*** Bug 64675 has been marked as a duplicate of this bug. ***