[Bug target/49001] GCC uses VMOVAPS/PD AVX instructions to access stack variables that are not 32-byte aligned

[thiago at kde dot org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=49001

--- Comment #7 from Thiago Macieira <thiago at kde dot org> ---
Hack to workaround:

asm(
    ".macro vmovapd args:vararg\n"
    "    vmovupd \\args\n"
    ".endm\n"
    ".macro vmovaps args:vararg\n"
    "    vmovups \\args\n"
    ".endm\n"
    ".macro vmovdqa args:vararg\n"
    "    vmovdqu \\args\n"
    ".endm\n"
    ".macro vmovdqa32 args:vararg\n"
    "    vmovdqu32 \\args\n"
    ".endm\n"
    ".macro vmovdqa64 args:vararg\n"
    "    vmovdqu64 \\args\n"
    ".endm\n"
);

See:
https://github.com/opendcdiag/opendcdiag/blob/main/framework/sysdeps/windows/win32_stdlib.h#L11-L34