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Re: FAIL: gcc.c-torture/compile/20000804-1.c -O0 with PIC on gcc-4_4-branch


Richard Guenther wrote:
> On Sun, Jul 12, 2009 at 9:41 PM, Jack Howarth<howarth@bromo.med.uc.edu> wrote:
>>   I am seeing a new failure on x86_64-apple-darwin10 in current gcc 4.4 branch
>> that wasn't present in the gcc 4.4.0 release. At -m32, the testsuite failure...
>>
>> FAIL: gcc.c-torture/compile/20000804-1.c  -O0  (test for excess errors)

  Do you know what this test is supposed to be doing?

> $ cat /gnu/gcc/gcc/gcc/testsuite/gcc.c-torture/compile/20000804-1.c
> /* This does not work on m68hc11 or h8300 due to the use of an asm
>    statement to force a 'long long' (64-bits) to go in a register.  */
> /* { dg-do assemble } */
> /* { dg-skip-if "" { { i?86-*-* x86_64-*-* } && ilp32 } { "-fpic" "-fPIC" } { ""
>  } } */
> /* { dg-skip-if "PIC default" { i?86-*-darwin* } { "*" } { "" } } */
> /* { dg-skip-if "No 64-bit registers" { m32c-*-* } { "*" } { "" } } */
> /* { dg-xfail-if "" { m6811-*-* m6812-*-* h8300-*-* } { "*" } { "" } } */
> 
> /* Copyright (C) 2000, 2003 Free Software Foundation */
> __complex__ long long f ()
> {
>   int i[99];
>   __complex__ long long v;
> 
>   v += f ();

  Undefined behaviour, no?

    cheers,
      DaveK


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