glibc 2.7 complex functions are possibly miscompiled by gcc 4.3 trunk

[Ismail Dönmez]

Saturday 22 December 2007 19:11:32 tarihinde Ismail Dönmez şunları yazmıştı:
> Hi all,
>
> I am doing glibc 4.3 regression tests using gcc 4.3 trunk nearly every day
> and I see 3 tests fail :
>
> math/test-float
> math/test-ildoubl
> math/test-ifloat
>
> The erorrs are all similar :
>
> Failure: Test: Imaginary part of: cacosh (-0 + 0 i) == 0.0 + pi/2 i
> Result:
>  is:          0.00000000000000000000e+00   0x0.00000000000000000000p+0
>  should be:   1.57079637050628662109e+00   0x1.921fb600000000000000p+0
>  difference:  1.57079637050628662109e+00   0x1.921fb600000000000000p+0
>  ulp       :  13176795.0000
>  max.ulp   :  0.0000

Replying to myself once again, these failures are due to -fgcse-after-reload 
flag, -O3 -fno-gcse-after-reload cures this. Any tips on how to debug this?

Regards,
ismail

-- 
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