[Bug target/19923] [4.0/4.1/4.2 Regression] openssl is slower when compiled with gcc 4.0 than 3.3

[pinskia at gcc dot gnu dot org]

------- Comment #38 from pinskia at gcc dot gnu dot org  2006-08-27 21:07 -------
For the reduced testcase in comment #12, we get:
.L2:
        movl    8(%ebp), %edx
        movl    -4(%edx,%ecx,4), %eax
        movl    %eax, (%esi)
        movl    16(%ebp), %edi
        movzbl  -1(%ecx,%edi), %edx
        movl    %edx, 64(%esi)
        xorl    %edx, %eax
        movl    %eax, 128(%esi)
        movl    12(%ebp), %edi
        movl    -4(%edi,%ecx,4), %eax
        xorl    -16(%ebp), %edx
        xorl    S@GOTOFF(%ebx,%edx,4), %eax
        movl    %eax, -4(%edi,%ecx,4)
        movl    %eax, -16(%ebp)
        addl    $1, %ecx
        addl    $4, %esi
        cmpl    $17, %ecx
        jne     .L2


Does someone know if this ok produced code or not, I never a good reader of x86
code?


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19923