[Bug ipa/98265] [10/11 Regression] gcc-10 has significantly worse code generated with -O2 compared to -O1 (or gcc-9 -O2) when using the Eigen C++ library

[hubicka at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98265

Jan Hubicka <hubicka at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|---                         |FIXED

--- Comment #10 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
Trunk now generates on the unreduced testcase:
        .file   "test.cpp"
        .text
        .p2align 4
        .globl  _Z1fffff
        .type   _Z1fffff, @function
_Z1fffff:
.LFB6287:
        .cfi_startproc
        mulss   %xmm3, %xmm0
        movq    %rdi, %rax
        mulss   %xmm3, %xmm1
        mulss   %xmm3, %xmm2
        movss   %xmm0, (%rdi)
        movss   %xmm1, 4(%rdi)
        movss   %xmm2, 8(%rdi)
        ret
        .cfi_endproc
.LFE6287:
        .size   _Z1fffff, .-_Z1fffff
        .ident  "GCC: (GNU) 11.0.1 20210331 (experimental)"
        .section        .note.GNU-stack,"",@progbits