I have gfortran 13 and everything is ok <div class="snippet-clipboard-content notr

Thank you <a class="user-mention notranslate" data-hovercard-type="user" data-hovercar

it fails: <div class="snippet-clipboard-content notranslate position-relative over

gfortran 13 is ok about test_compiler HOT 4 OPEN

jschueller commented on August 18, 2024

gfortran 13 is ok

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Comments (4)

zaikunzhang commented on August 18, 2024

Thank you @jschueller . Yes, gtest would pass. However, on my side, make test_eqv will fail with gfortran 13.1.0. Could you check?

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jschueller commented on August 18, 2024

it fails:

$ make test_eqv
gfortran -Ofast test_eqv.f90 && ./a.out
              NaN              NaN               NaN                                                                                   
 x <= 0.0, y <= 0.0 x <= 0.0 .eqv. y <= 0.0 x <= 0.0 .neqv. y <= 0.0
 F F F F
 Wrong!
Note: The following floating-point exceptions are signalling: IEEE_INVALID_FLAG
STOP 1
make: *** [Makefile:102: test_eqv] Error 1

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jschueller commented on August 18, 2024

is this a known bug ?

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zaikunzhang commented on August 18, 2024

I will not call it a bug until the gfortran developers say so. Since we are using -Ofast, gfortran is allowed to do many things. Maybe it is allowed to produce results like this. See https://fortran-lang.discourse.group/t/is-this-expected/6486 .

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