其次,在abi的1.0rc版本中,对齐方式为16、32或64B。 - Margaret Bloom 1 虽然如此,了解一些有关不同ABI设计决策的性能和代码大小的真实数字还是很酷的。现在矢量化代码经常需要32或64字节对齐,因此只有8字节对齐可能会更好,因此16字节对齐不足够。 - Peter Cordes 显示剩余5条评论...
编译器通常无法计算可变长度数组（VLA）的大小，但预计大多数VLA至少需要16字节，因此要求VLA至少有16字节...
我在不同的地方都读到,这样做是出于“性能原因”,但是我仍然想知道在哪些特殊情况下通过16字节对齐可以提高性能。或者,无论如何,选择它的原因是什么。编辑:我想我以一种误导的方式写了这个问题。我并不是在问处理器为什么使用16字节对齐的
This one isn't compatible with linux's ABI (the internals of which aren't publicly documented and could easily be changed and need to be called through VDSO, which is something that KOS doesn't have) syscall (x86_64 only) Same ABI as int 80h Custom mechanism: Call into ukern segmen...
Detecting C compiler ABI info compiled with the following output: Change Dir: D:/openpose/build/CMakeFiles/CMakeTmp Run Build Command(s):D:/Visual Studios/MSBuild/Current/Bin/MSBuild.exe cmTC_7f6b5.vcxproj /p:Configuration=Debug /p:Platform=x64 /p:VisualStudioVersion=16.0 /v:m && Micros...
> mklink mkdwarfs.exe dwarfs-universal-0.7.0-Windows-AMD64.exe > .\mkdwarfs.exe --help Alternatively, you can select the tool by passing --tool=<name> as the first argument on the command line: > .\dwarfs-universal-0.7.0-Windows-AMD64.exe --tool=mkdwarfs --help Note that just...
Ubuntu 20.04 Desktop (amd64) Ubuntu is a Linux operating system mainly for desktop applications.' Deepin Desktop Community v20.5 deepin is a software dedicated to providing users around the world with beautiful and easy-to-use CentOS 8.1.1911 x86_64 DVD ISO ...
Xen runtime libraries - miscellaneous, versioned ABI libxenstore4t64 (>= 4.16.0) Xen runtime libraries - libxenstore libxentoolcore1t64 (>= 4.17.3+10-g091466ba55) Xen runtime libraries - libxentoolcore qemu-system-data (>> 1:9.0.2+ds~) ...
eval "$($CC_FOR_BUILD -E "$dummy.c" 2>/dev/null | grep '^CPU\|^MIPS_ENDIAN\|^LIBCABI')" test "x$CPU" != x && { echo "$CPU${MIPS_ENDIAN}-unknown-linux-$LIBCABI"; exit; } ;; mips64el:Linux:*:*) echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" exit ;; ...
tux > readelf --file-header /bin/ls ELF Header: Magic: 7f 45 4c 46 02 01 01 00 00 00 00 00 00 00 00 00 Class: ELF64 Data: 2's complement, little endian Version: 1 (current) OS/ABI: UNIX - System V ABI Version: 0 Type: EXEC (Executable file) Machine: Advanced Micro Device...