[Bug c/29122] New: ICE with -ipa-cp and -m64

[Bug c/29122] New: ICE with -ipa-cp and -m64

[eres at il dot ibm dot com]

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gcc -O3 test.c --ipa-cp  -m64

test.c:
========================================================

#include <stdio.h>

int
bar (int b, int c)
{
  printf ("%d %d\n", b, c);
}

int
foo (int a)
{
  if (a++ > 0)
    bar (a, 3);

  foo (7);
}

int
main ()
{
  foo (7);
  return 0;
}



========================================================

test.c: In function âfooâ:
test.c:16: error: unrecognizable insn:
(call_insn/j 31 30 32 5 (parallel [
            (set (reg:DI 3 3)
                (call (mem:SI (symbol_ref:DI ("T.10")) [0 S4 A8])
                    (const_int 64 [0x40])))
            (use (const_int 0 [0x0]))
            (use (reg:SI 126))
            (return)
        ]) -1 (nil)
    (expr_list:REG_EH_REGION (const_int 0 [0x0])
        (nil))
    (expr_list:REG_DEP_TRUE (use (reg:DI 3 3))
        (nil)))


-- 
           Summary: ICE with -ipa-cp and -m64
           Product: gcc
           Version: 4.2.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: eres at il dot ibm dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29122

[Bug c/29122] ICE with -ipa-cp and -m64

[razya at il dot ibm dot com]

------- Comment #1 from razya at il dot ibm dot com  2006-09-18 10:09 -------
The ICE is due to a call to a versioned function that IPCP triggered.
The call instruction is corrupted.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29122

[Bug target/29122] ICE with -ipa-cp and -m64 (tail calls)

[pinskia at gcc dot gnu dot org]

------- Comment #2 from pinskia at gcc dot gnu dot org  2006-09-19 03:12 -------
Here is a reduced testcase:
int
bar (int b, int c)
{
  return 0;
}
int
main ()
{
  bar (8, 4);
  return bar (7, 4);
}

-----
This is due to tail calls.
> The call instruction is corrupted.
No, it is not, it is correct.  Just the function looks like it is not set to be
right.  Anyways I think the Function decl is messed up to begin with.
With -O1, we get an indirect function call which is just wrong.
.main:
        mflr 0
        std 0,16(1)
        stdu 1,-112(1)
        li 3,7
        li 4,4
        ld 9,.LC0@toc(2)
        ld 0,0(9)
        mtctr 0
        std 2,40(1)
        ld 2,8(9)
        ld 11,16(9)
        bctrl
        ld 2,40(1)
        addi 1,1,112
        ld 0,16(1)
        mtlr 0
        blr
.LC0:
        .tc T.0[TC],T.0
        .section        ".text"


I might bet this might have an issue on ppc-aix also even not in 64bit mode
because that is a TOC based ABI also.


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |pinskia at gcc dot gnu dot
                   |                            |org
             Status|UNCONFIRMED                 |NEW
          Component|tree-optimization           |target
     Ever Confirmed|0                           |1
 GCC target triplet|                            |powerpc64-linux
   Last reconfirmed|0000-00-00 00:00:00         |2006-09-19 03:12:51
               date|                            |
            Summary|ICE with -ipa-cp and -m64   |ICE with -ipa-cp and -m64
                   |                            |(tail calls)


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29122

[Bug tree-optimization/29122] ICE with -ipa-cp and -m64 (tail calls)

[razya at il dot ibm dot com]

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------- Comment #3 from razya at il dot ibm dot com  2006-10-12 11:44 -------
(In reply to comment #0)
> gcc -O3 test.c --ipa-cp  -m64
> test.c:
> ========================================================
> #include <stdio.h>
> int
> bar (int b, int c)
> {
>   printf ("%d %d\n", b, c);
> }
> int
> foo (int a)
> {
>   if (a++ > 0)
>     bar (a, 3);
>   foo (7);
> }
> int
> main ()
> {
>   foo (7);
>   return 0;
> }
> ========================================================
> test.c: In function âfooâ:
> test.c:16: error: unrecognizable insn:
> (call_insn/j 31 30 32 5 (parallel [
>             (set (reg:DI 3 3)
>                 (call (mem:SI (symbol_ref:DI ("T.10")) [0 S4 A8])
>                     (const_int 64 [0x40])))
>             (use (const_int 0 [0x0]))
>             (use (reg:SI 126))
>             (return)
>         ]) -1 (nil)
>     (expr_list:REG_EH_REGION (const_int 0 [0x0])
>         (nil))
>     (expr_list:REG_DEP_TRUE (use (reg:DI 3 3))
>         (nil)))

I would like to be assigned to this PR.
Razya 


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29122

[Bug tree-optimization/29122] ICE with -ipa-cp and -m64 (tail calls)

[razya at gcc dot gnu dot org]

------- Comment #4 from razya at gcc dot gnu dot org  2006-10-31 11:36 -------
Subject: Bug 29122

Author: razya
Date: Tue Oct 31 11:36:28 2006
New Revision: 118227

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=118227
Log:
2006-10-31  Razya Ladklesky  <razya@il.ibm.com>

            * tree-inline.c (remap_decls): remap all TYPE_DECLs.
            PR tree-optimization/29122
            * tree-inline.c (tree_function_versioning): Update
DECL_ASSEMBLER_NAME
              for the new version.  Assign NULL to DECL_RTL of the new version.


Modified:
    branches/ipa-branch/gcc/ChangeLog.ipa
    branches/ipa-branch/gcc/tree-inline.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29122

[Bug tree-optimization/29122] ICE with -ipa-cp and -m64 (tail calls)

[razya at il dot ibm dot com]

------- Comment #5 from razya at il dot ibm dot com  2006-10-31 12:08 -------
(In reply to comment #4)
> Subject: Bug 29122
> Author: razya
> Date: Tue Oct 31 11:36:28 2006
> New Revision: 118227
> URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=118227
> Log:
> 2006-10-31  Razya Ladklesky  <razya@il.ibm.com>
>             * tree-inline.c (remap_decls): remap all TYPE_DECLs.
>             PR tree-optimization/29122
>             * tree-inline.c (tree_function_versioning): Update
> DECL_ASSEMBLER_NAME
>               for the new version.  Assign NULL to DECL_RTL of the new version.
> Modified:
>     branches/ipa-branch/gcc/ChangeLog.ipa
>     branches/ipa-branch/gcc/tree-inline.c

(In reply to comment #4)
> Subject: Bug 29122
> Author: razya
> Date: Tue Oct 31 11:36:28 2006
> New Revision: 118227
> URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=118227
> Log:
> 2006-10-31  Razya Ladklesky  <razya@il.ibm.com>
>             * tree-inline.c (remap_decls): remap all TYPE_DECLs.
>             PR tree-optimization/29122
>             * tree-inline.c (tree_function_versioning): Update
> DECL_ASSEMBLER_NAME
>               for the new version.  Assign NULL to DECL_RTL of the new version.
> Modified:
>     branches/ipa-branch/gcc/ChangeLog.ipa
>     branches/ipa-branch/gcc/tree-inline.c

This was committed only on ipa branch (witth Hubicka's consent). This fix was
submitted for GCC4.3 and possibly for GCC4.2 
http://gcc.gnu.org/ml/gcc-patches/2006-10/msg01457.html


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29122

[Bug tree-optimization/29122] ICE with -ipa-cp and -m64 (tail calls)

[patchapp at dberlin dot org]

------- Comment #6 from patchapp at dberlin dot org  2006-10-31 12:19 -------
Subject: Bug number PR29122

A patch for this bug has been added to the patch tracker.
The mailing list url for the patch is
http://gcc.gnu.org/ml/gcc-patches/2006-10/msg01457.html


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29122

[Bug tree-optimization/29122] ICE with -ipa-cp and -m64 (tail calls)

[patchapp at dberlin dot org]

------- Comment #7 from patchapp at dberlin dot org  2006-11-06 11:40 -------
Subject: Bug number PR29122

A patch for this bug has been added to the patch tracker.
The mailing list url for the patch is
http://gcc.gnu.org/ml/gcc-patches/2006-11/msg00305.html


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29122

[Bug tree-optimization/29122] ICE with -ipa-cp and -m64 (tail calls)

[patchapp at dberlin dot org]

------- Comment #8 from patchapp at dberlin dot org  2006-11-16 11:50 -------
Subject: Bug number PR29122

A patch for this bug has been added to the patch tracker.
The mailing list url for the patch is
http://gcc.gnu.org/ml/gcc-patches/2006-11/msg01140.html


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29122

[Bug tree-optimization/29122] ICE with -ipa-cp and -m64 (tail calls)

[razya at gcc dot gnu dot org]

------- Comment #9 from razya at gcc dot gnu dot org  2006-11-26 10:00 -------
Subject: Bug 29122

Author: razya
Date: Sun Nov 26 10:00:18 2006
New Revision: 119220

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=119220
Log:
2006-11-26  Razya Ladklesky  <razya@il.ibm.com>

        PR tree-optimization/29122
        * tree-inline.c (tree_function_versioning): Update DECL_ASSEMBLER_NAME
        for the new version.  Assign NULL to DECL_RTL of the new version.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/tree-inline.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29122

[Bug tree-optimization/29122] ICE with -ipa-cp and -m64 (tail calls)

[pinskia at gcc dot gnu dot org]

------- Comment #10 from pinskia at gcc dot gnu dot org  2006-11-26 18:15 -------
Fixed.


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED
   Target Milestone|---                         |4.3.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29122