Re: middle-end/8808: [3.2/3.3 regression] Internal compiler error in extract_constrain_insn_cached

Re: middle-end/8808: [3.2/3.3 regression] Internal compiler error in extract_constrain_insn_cached

[bangerth]

Old Synopsis: Internal compiler error in extract_constrain_insn_cached
New Synopsis: [3.2/3.3 regression] Internal compiler error in extract_constrain_insn_cached

State-Changed-From-To: open->analyzed
State-Changed-By: bangerth
State-Changed-When: Wed Dec  4 13:40:03 2002
State-Changed-Why:
    Confirmed. Here's a much smaller testcase:
    -------------------------------
    void f(unsigned long long int);
    
    void g () {
      register unsigned long long int i asm ("mm0");
      f(i);
    }
    -------------------------
    It ICEs with both 3.2 and 3.3 branches. It is a regression 
    w.r.t. 3.0.
    
    With the above code, the crash happens with both the C and
    C++ front ends, so I change the category to middle-end.
    
    W.

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=8808

Re: middle-end/8808: [3.2/3.3 regression] Internal compiler error in extract_constrain_insn_cached

[Janis Johnson]

The following reply was made to PR middle-end/8808; it has been noted by GNATS.

From: Janis Johnson <janis187@us.ibm.com>
To: gcc-gnats@gcc.gnu.org, gcc-prs@gcc.gnu.org, gcc-bugs@gcc.gnu.org,
   nobody@gcc.gnu.org, ebuddington@wesleyan.edu
Cc:  
Subject: Re: middle-end/8808: [3.2/3.3 regression] Internal compiler error in 
 extract_constrain_insn_cached
Date: Wed, 18 Dec 2002 14:14:36 -0800

 The regression reported in PR middle-end/8808 showed up
 starting with this patch:
 
 Tue Feb 13 13:31:33 CET 2001  Jan Hubicka  <jh@suse.cz>
 
         * i386.c (print_reg): Use ANY_FP_REG instead of FP_REG
         * i386.h (MASK_128BIT_LONG_DOUBLE): Renumber
         ...
         * i386.md (pushsf, movsf): Support SSE.
         ...
 
 Output from the compiler (current mainline):
 
 8808.c: In function `g':
 8808.c:6: error: insn does not satisfy its constraints:
 (insn 18 23 28 (nil) (set (mem:DI (plus:SI (reg/f:SI 6 ebp)
                 (const_int -8 [0xfffffff8])) [0 S8 A8])
         (reg/v:DI 29 rmm0)) 59 {*movdi_2} (nil)
     (nil))
 8808.c:6: internal compiler error: in
           extract_constrain_insn_cached, at recog.c:2092
 Please submit a full bug report,
 with preprocessed source if appropriate.
 See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.
 
 
 The test compiles with -march=pentium4; perhaps the
 compiler should validate asm instructions against the
 target architecture and give a meaningful error message
 in this case.
 
 http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=8808