[Bug tree-optimization/31866] New: [4.3 Regression] ICE with tree check error: expected ssa_name, have var_decl in create_outofssa_var_map

[Bug tree-optimization/31866] New: [4.3 Regression] ICE with tree check error: expected ssa_name, have var_decl in create_outofssa_var_map

[kkojima at gcc dot gnu dot org]

With -O1, the following testcase

int
foo (void)
{
  return ({
      unsigned int resultvar = ({
          long int arg = (long int) 0;
          register long int reg asm ("eax") = arg;
          asm volatile ("nop"
                        : "=a" (resultvar)
                        : "0" (reg)
                        :"memory");
          (int) resultvar;});
      (int) resultvar;});
}

fails with an ICE:

foo.c: In function 'foo':
foo.c:3: internal compiler error: tree check: expected ssa_name, have var_decl
in create_outofssa_var_map, at tree-ssa-coalesce.c:1051


-- 
           Summary: [4.3 Regression] ICE with tree check error: expected
                    ssa_name, have var_decl in create_outofssa_var_map
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Keywords: ice-checking
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: kkojima at gcc dot gnu dot org
 GCC build triplet: i686-pc-linux-gnu
  GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31866

[Bug tree-optimization/31866] [4.3 Regression] ICE with tree check error: expected ssa_name, have var_decl in create_outofssa_var_map

[pinskia at gcc dot gnu dot org]

-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |pinskia at gcc dot gnu dot
                   |                            |org
           Keywords|                            |ice-on-valid-code
   Target Milestone|---                         |4.3.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31866

[Bug tree-optimization/31866] [4.3 Regression] ICE with tree check error: expected ssa_name, have var_decl in create_outofssa_var_map

[pinskia at gcc dot gnu dot org]

------- Comment #1 from pinskia at gcc dot gnu dot org  2007-05-09 01:45 -------
Here is a shorter testcase:
int
foo (void)
{
  unsigned int resultvar;
  long int arg = (long int) 0;
  register long int reg asm ("eax") = arg;
  asm ("nop"
  : "=r" (resultvar)
    : "0" (reg)
    );
  return  resultvar;
}


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|normal                      |blocker
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2007-05-09 01:45:25
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31866

[Bug tree-optimization/31866] [4.3 Regression] ICE with tree check error: expected ssa_name, have var_decl in create_outofssa_var_map

[pinskia at gcc dot gnu dot org]

------- Comment #2 from pinskia at gcc dot gnu dot org  2007-05-22 23:26 -------
Janis can you do a regression hunt on this bug.

Here is a powerpc testcase if you need one:
int
foo (void)
{
  unsigned int resultvar;
  long int arg = (long int) 0;
  register long int reg asm ("r3") = arg;
  asm ("nop"
  : "=r" (resultvar)
    : "0" (reg)
    );
  return  resultvar;
}


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |janis at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31866

[Bug tree-optimization/31866] [4.3 Regression] ICE with tree check error: expected ssa_name, have var_decl in create_outofssa_var_map

[jakub at gcc dot gnu dot org]

-- 

jakub at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |jakub at gcc dot gnu dot org
                   |dot org                     |
             Status|NEW                         |ASSIGNED
   Last reconfirmed|2007-05-09 01:45:25         |2007-06-20 11:23:31
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31866

[Bug tree-optimization/31866] [4.3 Regression] ICE with tree check error: expected ssa_name, have var_decl in create_outofssa_var_map

[jakub at gcc dot gnu dot org]

------- Comment #3 from jakub at gcc dot gnu dot org  2007-06-21 12:21 -------
Subject: Bug 31866

Author: jakub
Date: Thu Jun 21 12:20:42 2007
New Revision: 125919

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=125919
Log:
        PR tree-optimization/31866
        * tree-ssa-coalesce.c (create_outofssa_var_map): Do nothing
        if ASM_EXPR's input is not a SSA_NAME.

        * gcc.dg/pr31866.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/pr31866.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-coalesce.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31866

[Bug tree-optimization/31866] [4.3 Regression] ICE with tree check error: expected ssa_name, have var_decl in create_outofssa_var_map

[jakub at gcc dot gnu dot org]

------- Comment #4 from jakub at gcc dot gnu dot org  2007-06-21 12:23 -------
Fixed.


-- 

jakub at gcc dot gnu dot org changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31866