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From: "tobi at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug ipa/95859] [10/11 regression] Statically true asserts not
 recognized as such with -O2, but with -O1, -Og, -O3
Date: Fri, 02 Apr 2021 02:07:00 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D95859

--- Comment #12 from Tobias Schl=C3=BCter <tobi at gcc dot gnu.org> ---
Because I posted 32bit code before, here is what the trunk does with -m32
func34(m34):
        fld     DWORD PTR [esp+8]
        mov     eax, DWORD PTR [esp+4]
        fstp    QWORD PTR [eax]
        fld     DWORD PTR [esp+24]
        fstp    QWORD PTR [eax+8]
        fld     DWORD PTR [esp+40]
        fstp    QWORD PTR [eax+16]
        fld     DWORD PTR [esp+12]
        fstp    QWORD PTR [eax+24]
        fld     DWORD PTR [esp+28]
        fstp    QWORD PTR [eax+32]
        fld     DWORD PTR [esp+44]
        fstp    QWORD PTR [eax+40]
        fld     DWORD PTR [esp+16]
        fstp    QWORD PTR [eax+48]
        fld     DWORD PTR [esp+32]
        fstp    QWORD PTR [eax+56]
        fld     DWORD PTR [esp+48]
        fstp    QWORD PTR [eax+64]
        fld     DWORD PTR [esp+20]
        fstp    QWORD PTR [eax+72]
        fld     DWORD PTR [esp+36]
        fstp    QWORD PTR [eax+80]
        fld     DWORD PTR [esp+52]
        fstp    QWORD PTR [eax+88]
        ret     4
This is the same as the assembly from 9.3 in Comment 4.=