Re: debug/9905: [3.4 regression] Unhandled STMT_EXPR in loc_descriptor_from_tree

Re: debug/9905: [3.4 regression] Unhandled STMT_EXPR in loc_descriptor_from_tree

[Steven Bosscher]

The following reply was made to PR debug/9905; it has been noted by GNATS.

From: Steven Bosscher <s.bosscher@student.tudelft.nl>
To: gcc-gnats@gcc.gnu.org, schwab@suse.de, gcc-bugs@gcc.gnu.org,
	nobody@gcc.gnu.org, gcc-prs@gcc.gnu.org
Cc:  
Subject: Re: debug/9905: [3.4 regression] Unhandled STMT_EXPR in loc_descriptor_from_tree
Date: Sun, 11 May 2003 13:14:58 +0200

 http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=9905
 
 : Search converges between 2003-02-28-trunk (#141) and 2003-03-01-trunk 
 (#142).
 
 Line-numbered input is:
 ========================================
      1  void f (void)
      2  {
      3    int y[({ 1; })];
      4  }
      5 
 
 ========================================
 
 
 Diagnostic output follows, from the last compiler tested:
 input: In function `f':
 input:4: internal compiler error: in loc_descriptor_from_tree, at 
 dwarf2out.c:8861
 Please submit a full bug report,
 with preprocessed source if appropriate.
 See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.
 
 Compiler output follows, from the last compiler tested:
         .file   "input"
         .section        .debug_abbrev,"",@progbits
 .Ldebug_abbrev0:
         .section        .debug_info,"",@progbits
 .Ldebug_info0:
         .section        .debug_line,"",@progbits
 .Ldebug_line0:
         .text
 .Ltext0:
 .globl f
         .type   f, @function
 f:
 .LFB3:
         .file 1 "input"
         .loc 1 2 0
         pushl   %ebp
 .LCFI0:
         movl    %esp, %ebp
 .LCFI1:
         subl    $8, %esp
 .LCFI2:
 .LBB2:
         movl    %esp, %edx
         .loc 1 3 0
         movl    $1, %eax
         sall    $2, %eax
         addl    $15, %eax
         shrl    $4, %eax
         sall    $4, %eax
         subl    %eax, %esp
         movl    %edx, %esp
         .loc 1 4 0
         leave
         ret
 .LBE2:
 .LFE3:
         .size   f, .-f
 
 

Re: debug/9905: [3.4 regression] Unhandled STMT_EXPR in loc_descriptor_from_tree

[Andreas Schwab]

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The following reply was made to PR debug/9905; it has been noted by GNATS.

From: Andreas Schwab <schwab@suse.de>
To: gcc-gnats@gcc.gnu.org, gcc-bugs@gcc.gnu.org, gcc-prs@gcc.gnu.org
Cc:  
Subject: Re: debug/9905: [3.4 regression] Unhandled STMT_EXPR in
 loc_descriptor_from_tree
Date: Thu, 20 Mar 2003 15:16:10 +0100

 loc_descriptor_from_tree also does not handle MODIFY_EXPR (also triggered
 by glibc):
 
 $ cat modify.c
 int main ()
 {
   int n;
   int k[n = 1];
 }
 $ gcc -g modify.c 
 modify.c: In function `main':
 modify.c:5: internal compiler error: in loc_descriptor_from_tree, at dwarf2out.c:8962
 Please submit a full bug report,
 with preprocessed source if appropriate.
 See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.
 
 -- 
 Andreas Schwab, SuSE Labs, schwab@suse.de
 SuSE Linux AG, Deutschherrnstr. 15-19, D-90429 Nürnberg
 Key fingerprint = 58CA 54C7 6D53 942B 1756  01D3 44D5 214B 8276 4ED5
 "And now for something completely different."

Re: debug/9905: [3.4 regression] Unhandled STMT_EXPR in loc_descriptor_from_tree

[Andreas Schwab]

The following reply was made to PR debug/9905; it has been noted by GNATS.

From: Andreas Schwab <schwab@suse.de>
To: bangerth@dealii.org
Cc: gcc-bugs@gcc.gnu.org, gcc-prs@gcc.gnu.org, gcc-gnats@gcc.gnu.org
Subject: Re: debug/9905: [3.4 regression] Unhandled STMT_EXPR in loc_descriptor_from_tree
Date: 16 Mar 2003 19:47:53 +0100

 bangerth@dealii.org writes:
 
 >     Ugh, who would write such code???
 
 This can happen easily through macros.
 
 Andreas.

Re: debug/9905: [3.4 regression] Unhandled STMT_EXPR in loc_descriptor_from_tree

[bangerth]

Old Synopsis: Unhandled STMT_EXPR in loc_descriptor_from_tree
New Synopsis: [3.4 regression] Unhandled STMT_EXPR in loc_descriptor_from_tree

State-Changed-From-To: open->analyzed
State-Changed-By: bangerth
State-Changed-When: Fri Mar 14 21:32:26 2003
State-Changed-Why:
    Ugh, who would write such code???
    
    Anyway, I can confirm this. It's a regression in mainline,
    3.3 compiles it just fine.
    
    W.

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=9905