Subject: Re: cc1.exe in Cygwin v 1.0 doing coredump
From: Chris Faylor <[email-masked]>
To: [email-masked]
Cc: Suhaib Siddiqi <[email-masked]>, "[email-masked]" <[email-masked]>
Date: Wed, 3 Nov 1999 12:19:53 -0500

On Wed, Nov 03, 1999 at 11:01:52AM -0500, Suhaib Siddiqi wrote:
>Never mind.  It is something in my code.  With optimization (-O2)
>turned on cc1.exe does core dump, without optimization flags, it
>work.

Hmm.  I hate to say this but there is nothing that you should be
able to do to your code which should cause the compiler to core dump.
The back-end of gcc on the CD has been completely rewritten
to produce better quality x86 code.  It seems that you have hit
something which we hadn't tested for.

cgf

>> -----Original Message-----
>> From: [email-masked]
>> [mailto:[email-masked]]On Behalf Of
>> Suhaib Siddiqi
>> Sent: Wednesday, November 03, 1999 10:38 AM
>> To: [email-masked]
>> Subject: cc1.exe in Cygwin v 1.0 doing coredump
>>
>>
>>
>> I am trying to compile something, and cc1.exe from gcc in
>> Cygwin 1.0
>> (Cd Distribution) is doing stack dump.
>>
>> loop.c:3907: internal error--unrecognizable insn:
>> (insn 394 225 232 (set (reg/v:SI 72)
>>         (minus:SI (reg:SI 70)
>>             (const_int 1))) -1 (nil)
>>     (expr_list:REG_DEAD (reg:SI 70)
>>         (nil)))
>>     0       0 [main]
>> d:\cygwin\usr\lib\gcc-lib\i686-cygwin\2.9-cygwin-990830\cc1
>> .exe 8455 handle_exceptions: Exception: STATUS_ACCESS_VIOLATION
>>     0   22742 [main] cc1 8455 stackdump: Dumping stack trace to
>> cc1.exe.stackdum
>> p
>> make[1]: *** [loop.o] Error 1
>>
>>
>> 21601   44343 [main] cc1 8455 exception: trapped!
>> 44174   88517 [main] cc1 8455 exception: code 0xC0000005 at
>> 0x6105E871
>> 41132  129649 [main] cc1 8455 exception: ax 0x0 bx 0x1 cx
>> 0xFFFFFFFF
>> dx 0x5CD
>> 41987  171636 [main] cc1 8455 exception: si 0x0 di 0x5CD bp
>> 0x25BE4E4 sp 0x25BE4E0
>> 58070  229706 [main] cc1 8455 exception: exception is:
>> STATUS_ACCESS_VIOLATION
>> 42009  271715 [main] cc1 8455 stack: Stack trace:
>> 49620  321335 [main] cc1 8455 stack: frame 0: sp = 0x25BE300, pc =
>> 0x6100AE52
>> 41965  363300 [main] cc1 8455 stack: frame 1: sp = 0x25BE314, pc =
>> 0x6100B230
>> 49691  412991 [main] cc1 8455 stack: frame 2: sp = 0x25BE330, pc =
>> 0x77F96666
>> 50425  463416 [main] cc1 8455 stack: frame 3: sp = 0x25BE354, pc =
>> 0x77F8912B
>> 49589  513005 [main] cc1 8455 stack: frame 4: sp = 0x25BE3E0, pc =
>> 0x77F763BA
>> 42164  555169 [main] cc1 8455 stack: frame 5: sp = 0x25BE4E4, pc =
>> 0x61061D1E
>> 41158  596327 [main] cc1 8455 stack: frame 6: sp = 0x25BE71C, pc =
>> 0x61061328
>> 58662  654989 [main] cc1 8455 stack: frame 7: sp = 0x25BE734, pc =
>> 0x610612D7
>> 41417  696406 [main] cc1 8455 stack: frame 8: sp = 0x25BEBB4, pc =
>> 0x61061443
>> 50287  746693 [main] cc1 8455 stack: frame 9: sp = 0x25BEDF4, pc =
>> 0x61061328
>> 49619  796312 [main] cc1 8455 stack: frame 10: sp =
>> 0x25BEE0C, pc =
>> 0x6105C4F0
>> 42253  838565 [main] cc1 8455 stack: frame 11: sp =
>> 0x25BEE20, pc =
>> 0x405578
>> 66152  904717 [main] cc1 8455 stack: frame 12: sp =
>> 0x25BEE44, pc =
>> 0x405618
>> 42012  946729 [main] cc1 8455 stack: frame 13: sp =
>> 0x25BEE54, pc =
>> 0x4FE0E1
>> 49617  996346 [main] cc1 8455 stack: frame 14: sp =
>> 0x25BEE7C, pc =
>> 0x46AFBD
>> 50392 1046738 [main] cc1 8455 stack: frame 15: sp =
>> 0x25BEEE4, pc =
>> 0x46A5AC
>> 41244 1087982 [main] cc1 8455 stack: End of stack trace
>> (more stack
>> frames may be present)
>>
>>
>> ****************************
>> Suhaib M. Siddiqi
>> Senior Research Scientist
>> Inspire Pharmaceuticals, Inc.
>> 4222 Emperor Blvd., Suite 470
>> Durham, NC 27703
>>
>> Tel: 919-941-9777 Ext 238
>> FAX: 919-941-9797
>> http://www.inspirepharm.com
>>
>>
>>
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