[Bug c++/30850] New: [4.1/4.2/4.3 regression] ICE with invalid asm statement

[Bug c++/30850] New: [4.1/4.2/4.3 regression] ICE with invalid asm statement

[reichelt at gcc dot gnu dot org]

The following invalid code snippet triggers an ICE since GCC 3.4.0:

=====================================
void foo()
{
  asm("" :: 0);
}
=====================================

bug.cc: In function 'void foo()':
bug.cc:3: error: expected string-literal before numeric constant
bug.cc:3: error: expected `(' before numeric constant
bug.cc:3: error: expected `)' before ';' token
bug.cc:3: internal compiler error: tree check: expected string_cst, have
error_mark in resolve_asm_operand_names, at stmt.c:1234
Please submit a full bug report, [etc.]

The bug is similar to PR 30849, but the crash is in a different function.


-- 
           Summary: [4.1/4.2/4.3 regression] ICE with invalid asm statement
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Keywords: ice-on-invalid-code, error-recovery, monitored
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: reichelt at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30850

[Bug c++/30850] [4.1/4.2/4.3 regression] ICE with invalid asm statement

[rguenth at gcc dot gnu dot org]

------- Comment #1 from rguenth at gcc dot gnu dot org  2007-02-21 15:22 -------
Confirmed.  Starting with 4.0.0 there are random segfaults on diagnostics.


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
      Known to fail|                            |3.4.6
      Known to work|                            |3.3.6
   Last reconfirmed|0000-00-00 00:00:00         |2007-02-21 15:22:46
               date|                            |
   Target Milestone|---                         |4.1.3


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30850

[Bug c++/30850] [4.1/4.2/4.3 regression] ICE with invalid asm statement

[mmitchel at gcc dot gnu dot org]

-- 

mmitchel at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P3                          |P4


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30850

[Bug c++/30850] [4.1/4.2/4.3 regression] ICE with invalid asm statement

[lmillward at gcc dot gnu dot org]

------- Comment #2 from lmillward at gcc dot gnu dot org  2007-08-02 17:51 -------
Subject: Bug 30850

Author: lmillward
Date: Thu Aug  2 17:50:55 2007
New Revision: 127167

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=127167
Log:
        PR c++/30849
        PR c++/30850
        PR c++/30851
        * parser.c (cp_parser_asm_definition): Detect and discard asm
        statements with invalid inputs or outputs.
        (cp_parser_asm_operand_list): Return error mark node if any
        of the operands are invalid. Adjust documentation.

        PR c++/30849
        * g++.dg/parse/asm1.C: New test.

        PR c++/30850
        * g++.dg/parse/asm2.C: Likewise.

        PR c++/30851
        * g++.dg/parse/asm3.C: Likewise.


Added:
    trunk/gcc/testsuite/g++.dg/parse/asm1.C
    trunk/gcc/testsuite/g++.dg/parse/asm2.C
    trunk/gcc/testsuite/g++.dg/parse/asm3.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/parser.c
    trunk/gcc/testsuite/ChangeLog


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30850

[Bug c++/30850] [4.1/4.2 regression] ICE with invalid asm statement

[lmillward at gcc dot gnu dot org]

------- Comment #3 from lmillward at gcc dot gnu dot org  2007-08-02 17:53 -------
Fixed on mainline.


-- 

lmillward at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[4.1/4.2/4.3 regression] ICE|[4.1/4.2 regression] ICE
                   |with invalid asm statement  |with invalid asm statement


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30850

[Bug c++/30850] [4.2 regression] ICE with invalid asm statement

[jsm28 at gcc dot gnu dot org]

------- Comment #4 from jsm28 at gcc dot gnu dot org  2008-07-04 21:58 -------
Closing 4.1 branch.


-- 

jsm28 at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[4.1/4.2 regression] ICE    |[4.2 regression] ICE with
                   |with invalid asm statement  |invalid asm statement
   Target Milestone|4.1.3                       |4.2.5


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30850

[Bug c++/30850] [4.2 regression] ICE with invalid asm statement

[jsm28 at gcc dot gnu dot org]

------- Comment #5 from jsm28 at gcc dot gnu dot org  2009-03-30 21:37 -------
Closing 4.2 branch, fixed in 4.3.


-- 

jsm28 at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
      Known to fail|3.4.6                       |3.4.6 4.2.5
      Known to work|3.3.6                       |3.3.6 4.3.0
         Resolution|                            |FIXED
   Target Milestone|4.2.5                       |4.3.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30850