[Bug tree-optimization/17368] New: ice-on-legal-code in optimize_inline_calls, at tree-inline.c

[Bug tree-optimization/17368] New: ice-on-legal-code in optimize_inline_calls, at tree-inline.c

[salinger at sun dot felk dot cvut dot cz]

GNU C++ version 3.5.0 20040905 (experimental) (i486-redhat-linux)
ix.cc: In function `int fce(std::string)':
ix.cc:8: internal compiler error: in optimize_inline_calls, at tree-inline.c:1821


// g++ -O2
#include <string>
#include <netinet/in.h>

int conv(const char *);

int fce(std::string s)
{
        return (htonl(conv(s.substr(1).c_str())));
}       


Fails with -O1 too, -O0 is OK.

-- 
           Summary: ice-on-legal-code  in optimize_inline_calls, at tree-
                    inline.c
           Product: gcc
           Version: 3.5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: tree-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: salinger at sun dot felk dot cvut dot cz
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: i486-redhat-linux-gnu
  GCC host triplet: i486-redhat-linux-gnu
GCC target triplet: i486-redhat-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17368

[Bug tree-optimization/17368] ice-on-legal-code in optimize_inline_calls, at tree-inline.c

[salinger at sun dot felk dot cvut dot cz]

------- Additional Comments From salinger at sun dot felk dot cvut dot cz  2004-09-09 09:20 -------
Created an attachment (id=7076)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=7076&action=view)
 preprocessed source 


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17368

[Bug tree-optimization/17368] ice-on-legal-code in optimize_inline_calls, at tree-inline.c

[salinger at sun dot felk dot cvut dot cz]

------- Additional Comments From salinger at sun dot felk dot cvut dot cz  2004-09-09 11:53 -------
Smaller testcase:

// g++ -O2
#include <string>

// from glibc 2.2.5:

# define bswap_16(x) \
     (__extension__                                                           \
      ({ register unsigned short int __v;                                     \
           __asm__ __volatile__ ("rorw $8, %w0"                               \
                                 : "=r" (__v)                                 \
                                 : "0" ((unsigned short int) (x))             \
                                 : "cc");                                     \
         __v; }))

unsigned short int conv(const std::string &arg)
        {return 1;}

int main(void)
{
        return bswap_16(conv("port"));
};



-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |ice-on-valid-code
      Known to work|                            |3.3.3 3.4.2


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17368

[Bug tree-optimization/17368] [3.5 Regression] ice-on-legal-code in optimize_inline_calls, at tree-inline.c

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-09-09 16:56 -------
Fixed in a newer compiler: 3.5.0 20040909.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |FIXED
            Summary|ice-on-legal-code  in       |[3.5 Regression] ice-on-
                   |optimize_inline_calls, at   |legal-code  in
                   |tree-inline.c               |optimize_inline_calls, at
                   |                            |tree-inline.c
   Target Milestone|---                         |3.5.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17368

[Bug tree-optimization/17368] [3.5 Regression] ice in optimize_inline_calls, at tree-inline.c

[salinger at sun dot felk dot cvut dot cz]

------- Additional Comments From salinger at sun dot felk dot cvut dot cz  2004-09-13 12:03 -------
It doesn't seem fixed. At least the "Smaller testcase".

Configured with: ../configure --prefix=/usr --bindir=/usr/local/bin/gcc-4.0
--enable-threads=posix --enable-languages=c++
--enable-version-specific-runtime-libs --with-system-zlib --enable-__cxa_atexit
--host=i486-redhat-linux --with-arch=i486 --with-tune=i686
GNU C++ version 4.0.0 20040912 (experimental) (i486-redhat-linux)
        compiled by GNU C version 4.0.0 20040912 (experimental).


With -O1, -O2, -O3:

f.cc: In function `int main()':
f.cc:19: internal compiler error: in optimize_inline_calls, at tree-inline.c:1800

And now it fails also with -O0 and -Os:

 <with_cleanup_expr 0x405c1b40>f.cc: In function `int main()':
f.cc:19: internal compiler error: unexpected node

When "cross" compiling preprocessed sources

g++  f-O2.ii -O0
 <with_cleanup_expr 0x40606dc0>f.cc: In function `int main()':
f.cc:19: internal compiler error: unexpected node

g++  f-O0.ii -O2
f.cc: In function `int main()':
f.cc:19: internal compiler error: in optimize_inline_calls, at tree-inline.c:1800




-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |UNCONFIRMED
         Resolution|FIXED                       |
            Summary|[3.5 Regression] ice-on-    |[3.5 Regression] ice in
                   |legal-code  in              |optimize_inline_calls, at
                   |optimize_inline_calls, at   |tree-inline.c
                   |tree-inline.c               |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17368

[Bug tree-optimization/17368] [3.5 Regression] ice in optimize_inline_calls, at tree-inline.c

[salinger at sun dot felk dot cvut dot cz]

------- Additional Comments From salinger at sun dot felk dot cvut dot cz  2004-09-13 12:04 -------
Created an attachment (id=7120)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=7120&action=view)
preprocessed source  f-O0.ii


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17368

[Bug tree-optimization/17368] [4.0 Regression] ice in optimize_inline_calls, at tree-inline.c

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-09-13 16:00 -------
But that was fixed most likely right after you updated your compiler, see PR 16254.

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17368

[Bug tree-optimization/17368] [4.0 Regression] ice in optimize_inline_calls, at tree-inline.c

[salinger at sun dot felk dot cvut dot cz]

------- Additional Comments From salinger at sun dot felk dot cvut dot cz  2004-09-14 09:23 -------
I am sorry, but it still doesn't seem fixed for me.                          
 
Let try to compile sources and attached preprocessed sources 
with various compiler versions:

g++ -O0:
                        ix.cc   f.cc    ix.ii   f-O0.ii
-------------------------------------------------------
3.3.3                   OK      OK      N/A     OK
3.4.2                   OK      OK      OK      OK
3.5.0-20040905          OK      ICE     ICE     ICE
4.0.0-20040912          OK      ICE     ICE     ICE
4.0.0-20040914          OK      ICE     ICE     ICE


g++ -O2:
                        ix.cc   f.cc    ix.ii   f-O0.ii
-------------------------------------------------------
3.3.3                   OK      OK      N/A     OK
3.4.2                   OK      OK      OK      OK
3.5.0-20040905          ICE     ICE     ICE     ICE
4.0.0-20040912          ICE     ICE     ICE     ICE
4.0.0-20040914          ICE     ICE     ICE     ICE

3.5.0-20040905 and 4.0.0-20040912 were taken from
ftp://gcc.gnu.org/pub/gcc/snapshots/,
4.0.0-20040914 is taken from cvs around Sep 14 06:00 UTC              

This bug isn't same as PR 16254, since my 4.0.0-20040914 compiles   
gcc/testsuite/g++.dg/eh/cleanup4.C without problems.

Please, could you try to compile attached preprocessed sources 
in your x86 environment ?

Thank you very much.



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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17368

[Bug tree-optimization/17368] [4.0 Regression] ice in optimize_inline_calls, at tree-inline.c

[giovannibajo at libero dot it]

------- Additional Comments From giovannibajo at libero dot it  2004-09-14 18:46 -------
Confirmed, but not reduced yet. Anybody can try reducing this?

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|                            |1
      Known to fail|                            |4.0.0
   Last reconfirmed|0000-00-00 00:00:00         |2004-09-14 18:46:31
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17368

[Bug tree-optimization/17368] [4.0 Regression] ice in optimize_inline_calls, at tree-inline.c

[salinger at sun dot felk dot cvut dot cz]

------- Additional Comments From salinger at sun dot felk dot cvut dot cz  2004-09-15 12:25 -------
> Confirmed, but not reduced yet. Anybody can try reducing this?

I have tried:


// from glibc 2.2.5:
# define bswap_16(x) \
     (__extension__                                                           \
      ({ register unsigned short int __v;                                     \
           __asm__ __volatile__ ("rorw $8, %w0"                               \
                                 : "=r" (__v)                                 \
                                 : "0" ((unsigned short int) (x))             \
                                 : "cc");                                     \
         __v; }))

class xstring
{
  public:
      void
      _M_clear();

      ~xstring()
      { _M_clear(); }

};

unsigned short int conv(const xstring arg);
extern xstring s;

int main(void)
{
        return bswap_16(conv(s));
};


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17368

[Bug tree-optimization/17368] [4.0 Regression] ice in optimize_inline_calls, at tree-inline.c

[reichelt at gcc dot gnu dot org]

------- Additional Comments From reichelt at gcc dot gnu dot org  2004-09-20 10:30 -------
Here's something slightly shorter:

===============================================
struct A
{
    ~A();
};

int foo(A);

void bar()
{
    int i;
    A a;
    asm("" : "=r"(i) : "0"(foo(a)) : "cc");
};
===============================================

Without optimization I get:

 <with_cleanup_expr 0x40155e00>PR17368.cc: In function `void bar()':
PR17368.cc:9: internal compiler error: unexpected node
Please submit a full bug report, [etc.]

Using -O and replacing "~A();" by "~A() {}" I get the ICE in
optimize_inline_calls.

The bug appeared with the tree-ssa merge.


-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |reichelt at gcc dot gnu dot
                   |                            |org
           Severity|normal                      |critical
           Keywords|                            |monitored


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17368

[Bug tree-optimization/17368] [4.0 Regression] ice in optimize_inline_calls, at tree-inline.c

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-10-03 14:40 -------
*** Bug 17809 has been marked as a duplicate of this bug. ***

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |olh at suse dot de


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17368

[Bug tree-optimization/17368] [4.0 Regression] ice in optimize_inline_calls, at tree-inline.c

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-10-05 13:00 -------
Here is something a little smaller:
struct A
{
    ~A();
};
int foo(A);
void bar()
{
    A a;
    asm("" : : "r"(foo(a)) ); // <-- the problem is here in the ASM_EXPR but how?
};

And this has been failing for a long time on the tree-ssa branch:
Aka since before 2003-05-30

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17368

[Bug middle-end/17368] [4.0 Regression] ice in optimize_inline_calls, at tree-inline.c

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-10-05 14:02 -------
Hmm, there is no CLEANUP_POINT_EXPR in the orginal trees which is wrong.

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17368

[Bug c++/17368] [4.0 Regression] ice in optimize_inline_calls, at tree-inline.c

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-10-05 14:10 -------
Patch here: <http://gcc.gnu.org/ml/gcc-patches/2004-10/msg00379.html>.

Mine.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |pinskia at gcc dot gnu dot
                   |dot org                     |org
             Status|NEW                         |ASSIGNED
           Keywords|                            |patch


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17368

[Bug c++/17368] [4.0 Regression] ice in optimize_inline_calls, at tree-inline.c

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-10-06 22:08 -------
Fixed.

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17368

[Bug c++/17368] [4.0 Regression] ice in optimize_inline_calls, at tree-inline.c

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2004-10-06 22:09 -------
Subject: Bug 17368

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	pinskia@gcc.gnu.org	2004-10-06 22:09:25

Modified files:
	gcc/cp         : ChangeLog semantics.c 
	gcc/testsuite  : ChangeLog 
Added files:
	gcc/testsuite/g++.dg/ext: asm6.C 

Log message:
	2004-10-05  Andrew Pinski  <pinskia@physics.uc.edu>
	
	PR c++/17368
	* semantics.c (finish_asm_stmt): Asm expressions need cleanup
	also.
	
	2004-10-06  Andrew Pinski  <pinskia@physics.uc.edu>
	
	PR c++/17368
	* g++.dg/ext/asm6.C: New test.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/ChangeLog.diff?cvsroot=gcc&r1=1.4408&r2=1.4409
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/semantics.c.diff?cvsroot=gcc&r1=1.441&r2=1.442
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.4395&r2=1.4396
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/ext/asm6.C.diff?cvsroot=gcc&r1=NONE&r2=1.1



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17368