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Subject: Re: optimization/6806: gcc 3.0.4 ignoring clobbered registers in inline asm with -O1 or higher on i386
Date: Tue, 28 May 2002 10:16:00 -0000	[thread overview]
Message-ID: <> (raw)

Synopsis: gcc 3.0.4 ignoring clobbered registers in inline asm with -O1 or higher on i386

State-Changed-From-To: open->analyzed
State-Changed-By: rth
State-Changed-When: Tue May 28 10:07:23 2002
    Confirmed still present in 3.1.0 compiling with -O1.
    Appears to be some sort of reload inheritence problem, since
    we have
            movl    f, %eax
            movl    %eax, -40(%ebp)
            addl %eax, %edx         
    I.e. F got copied to the stack as expected for a "g" input
    with not enough registers, but then we used eax in the asm

             reply	other threads:[~2002-05-28 17:07 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-05-28 10:16 rth [this message]
  -- strict thread matches above, loose matches on Subject: below --
2003-05-14 23:16 Dara Hazeghi
2002-05-24 18:56 michaelni

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