[Bug target/65593] New: [5 Regression] internal compiler error: in extract_insn, at recog.c:2343

[Bug target/65593] New: [5 Regression] internal compiler error: in extract_insn, at recog.c:2343

[hjl.tools at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65593

            Bug ID: 65593
           Summary: [5 Regression] internal compiler error: in
                    extract_insn, at recog.c:2343
           Product: gcc
           Version: 5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: hjl.tools at gmail dot com

On Linux/x86-64, r221697 gave:

[hjl@gnu-35 gcc-test-spec]$ ./usr/bin/gcc -S -fPIE -O2 -o /tmp/x.s
src-trunk/gcc/testsuite/gcc.c-torture/compile/pr20928.c
src-trunk/gcc/testsuite/gcc.c-torture/compile/pr20928.c: In function
\u2018foo\u2019:
src-trunk/gcc/testsuite/gcc.c-torture/compile/pr20928.c:10:1: error:
unrecognizable insn:
 }
 ^
(insn 7 6 8 2 (set (reg/f:DI 88)
        (plus:DI (symbol_ref:DI ("bar") [flags 0x40] <var_decl 0x7ffff0dfac60
bar>)
            (reg:DI 89)))
src-trunk/gcc/testsuite/gcc.c-torture/compile/pr20928.c:8 -1
     (expr_list:REG_EQUAL (const:DI (plus:DI (symbol_ref:DI ("bar") [flags
0x40] <var_decl 0x7ffff0dfac60 bar>)
                (const_int 2147483648 [0x80000000])))
        (nil)))
src-trunk/gcc/testsuite/gcc.c-torture/compile/pr20928.c:10:1: internal compiler
error: in extract_insn, at recog.c:2343
0xa9a2c8 _fatal_insn(char const*, rtx_def const*, char const*, int, char
const*)
    ../../src-trunk/gcc/rtl-error.c:110
0xa9a2f9 _fatal_insn_not_found(rtx_def const*, char const*, int, char const*)
    ../../src-trunk/gcc/rtl-error.c:118
0xa68659 extract_insn(rtx_insn*)
    ../../src-trunk/gcc/recog.c:2343
0x86d1f3 instantiate_virtual_regs_in_insn
    ../../src-trunk/gcc/function.c:1598
0x86d1f3 instantiate_virtual_regs
    ../../src-trunk/gcc/function.c:1966
0x86d1f3 execute
    ../../src-trunk/gcc/function.c:2015
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-35 gcc-test-spec]$

[Bug target/65593] [5 Regression] internal compiler error: in extract_insn, at recog.c:2343

[hjl.tools at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65593

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2015-03-27
                 CC|                            |tmsriram at google dot com
     Ever confirmed|0                           |1

--- Comment #1 from H.J. Lu <hjl.tools at gmail dot com> ---
It was caused by r218397.

[Bug target/65593] [5 Regression] internal compiler error: in extract_insn, at recog.c:2343

[ubizjak at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65593

--- Comment #2 from Uroš Bizjak <ubizjak at gmail dot com> ---
Looks similar to PR65560.
>From gcc-bugs-return-481950-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Mar 27 08:11:06 2015
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Subject: [Bug middle-end/65595] New: [5 Regression] Linux kernel build failure: ICE: in as_a, at is-a.h:192
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65595

            Bug ID: 65595
           Summary: [5 Regression] Linux kernel build failure: ICE: in
                    as_a, at is-a.h:192
           Product: gcc
           Version: 5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: middle-end
          Assignee: unassigned at gcc dot gnu.org
          Reporter: trippels at gcc dot gnu.org
                CC: hubicka at gcc dot gnu.org

trippels@gcc2-power8 linux-3.18.8 % cat libcxgbi.i
extern void *memcpy(void *, const void *, unsigned long);
struct in6_addr {
  struct {
    int u6_addr32[4];
  };
};
struct foo {
  struct in6_addr daddr;
  struct in6_addr saddr;
} a;
extern void ip6_route_output(struct foo, int);
int b;
static void find_route_ipv6(struct in6_addr *p1) {
  if (p1)
    memcpy(0, p1, sizeof(struct in6_addr));
  ip6_route_output(a, b);
}
void cxgbi_ep_connect() { find_route_ipv6(0); }

trippels@gcc2-power8 linux-3.18.8 % gcc -O2 -c libcxgbi.i
libcxgbi.i: In function ‘find_route_ipv6.constprop’:
libcxgbi.i:18:1: internal compiler error: in as_a, at is-a.h:192
 void cxgbi_ep_connect() { find_route_ipv6(0); }
 ^
0x100f16e3 as_a<gcall*, gimple_statement_base>
        ../../gcc/gcc/is-a.h:192
0x1030ffb7 as_a<gcall*, gimple_statement_base>
        ../../gcc/gcc/is-a.h:192
0x1030ffb7 cgraph_update_edges_for_call_stmt_node
        ../../gcc/gcc/cgraph.c:1524
0x1031045f cgraph_update_edges_for_call_stmt(gimple_statement_base*,
tree_node*, gimple_statement_base*)
        ../../gcc/gcc/cgraph.c:1588
0x108720a3 fold_marked_statements
        ../../gcc/gcc/tree-inline.c:4843
0x10884ebf tree_function_versioning(tree_node*, tree_node*,
vec<ipa_replace_map*, va_gc, vl_embed>*, bool, bitmap_head*, bool,
bitmap_head*, basic_block_def*)
        ../../gcc/gcc/tree-inline.c:5813
0x103229ef cgraph_materialize_clone
        ../../gcc/gcc/cgraphclones.c:1056
0x103229ef symbol_table::materialize_all_clones()
        ../../gcc/gcc/cgraphclones.c:1153
0x1031c3cb symbol_table::compile()
        ../../gcc/gcc/cgraphunit.c:2326
0x1031ee67 symbol_table::finalize_compilation_unit()
        ../../gcc/gcc/cgraphunit.c:2444
0x1015d1c7 c_write_global_declarations()
        ../../gcc/gcc/c/c-decl.c:10801
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.
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Subject: [Bug testsuite/65594] libgomp.graphite/force-parallel-6.c timeout
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https://gcc.gnu.org/bugzilla/show_bug.cgi?ide594

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

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

--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Well, GOMP_parallel doesn't always create new threads, but still it has some
synchronization overhead etc.  IMNSHO the testcase should be scaled down for
the testsuite, IMHO lowering N to 100 would be in order.

[Bug target/65593] [5 Regression] internal compiler error: in extract_insn, at recog.c:2343

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65593

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P3                          |P1
   Target Milestone|---                         |5.0

[Bug target/65593] [5 Regression] internal compiler error: in extract_insn, at recog.c:2343

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65593

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

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

--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Looks like a bug in legitimize_pic_address.  Working on a fix.

[Bug target/65593] [5 Regression] internal compiler error: in extract_insn, at recog.c:2343

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65593

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
           Assignee|unassigned at gcc dot gnu.org      |jakub at gcc dot gnu.org

--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 35161
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=35161&action=edit
gcc5-pr65593.patch

Untested fix.

[Bug target/65593] [5 Regression] internal compiler error: in extract_insn, at recog.c:2343

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65593

--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Fri Mar 27 17:35:14 2015
New Revision: 221741

URL: https://gcc.gnu.org/viewcvs?rev=221741&root=gcc&view=rev
Log:
    PR target/65593
    * config/i386/i386.c (legitimize_pic_address): If base
    is SYMBOL_REF or LABEL_REF using %rip addressing, force
    it to reg to avoid PLUS of SYMBOL_REF/LABEL_REF and register.

    * gcc.c-torture/compile/pr65593.c: New test.

Added:
    trunk/gcc/testsuite/gcc.c-torture/compile/pr65593.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/i386/i386.c
    trunk/gcc/testsuite/ChangeLog

[Bug target/65593] [5 Regression] internal compiler error: in extract_insn, at recog.c:2343

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65593

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

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

--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Fixed.