c/10365: Seems like bug in code generator on Sun Sparc (Sol;aris 8) platform

[Yuri Urazov]

I am sending you missed file and shell script I wrote
to do tests you suggested.

Results of tests is following:


-O0 -O0 : LOG0:PASS:
gsl_vector_complex_float_swap_elements (static)
exchanges elements
-O2 -O0 : LOG1:PASS:
gsl_vector_complex_float_swap_elements (static)
exchanges elements
-O0 -O2 : LOG2:FAIL:
gsl_vector_complex_float_swap_elements (static)
exchanges elements
-O0     : LOG3:PASS:
gsl_vector_complex_float_swap_elements (static)
exchanges elements
-O1     : LOG4:PASS:
gsl_vector_complex_float_swap_elements (static)
exchanges elements
-O2     : LOG5:FAIL:
gsl_vector_complex_float_swap_elements (static)
exchanges elements

Which means that test failed if -O2 or combination -O0
-O2 were used. In other cases it's compiled correctly.
Be advised that function causing trouble is:
  swap.i:3912
    gsl_vector_complex_float_swap_elements(...)

Could you do me a favor giving a hint about that
combination of optimization flags. I did not find
description of it. Just an idea or reference to
manual?

Regards,

Yuri




--- ebotcazou@gcc.gnu.org wrote:
> Synopsis: Seems like bug in code generator on Sun
> Sparc (Sol;aris 8) platform
> 
> State-Changed-From-To: open->feedback
> State-Changed-By: ebotcazou
> State-Changed-When: Fri Apr 11 09:02:04 2003
> State-Changed-Why:
>     Hum... the file you sent only contains the test,
> not the
>     function that is being tested. You need to
> determine which one is miscompiled: compile with
> (-O0, -O0) then (-O2, -O0)
>     and (-O0, -O2) and verify each time if the test
> pass.
> 
>
http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=10365


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