// RUN: %clang_cc1 -triple aarch64-none-linux-gnu -target-feature +sme -target-feature +sme2 -target-feature +sme-lutv2 -disable-O0-optnone -Werror -Wall -o /dev/null %s #include <arm_sme.h> // CHECK-LABEL: define dso_local { <vscale x 16 x i8>, <vscale x 16 x i8>...
// RUN: %clang_cc1 -triple aarch64-none-linux-gnu -target-feature +sve2p1 -S -disable-O0-optnone -Werror -Wall -o /dev/null %s #include <arm_neon.h> #include <arm_sve.h> #ifdef SVE_OVERLOADED_FORMS // A simple used,unused... macro, long enough to represent any SVE built...
使用opt 工具加载 MyPass.dll 插件,运行自定义的 my-function-pass ,对 test.ll 进行优化处理,并将结果输出到 test_opt.ll。 opt --load-pass-plugin=./MyPass.dll --passes=my-function-pass -S ../test.ll -o ../test_opt.ll Processing Function: main Basic Block: ret i32 0 使用opt 工具加载...
clang -S -fobjc-arc -emit-llvm ClangTest/main.m -o main.ll ; ModuleID ='ClangTest/main.m'source_filename="ClangTest/main.m"target datalayout="e-m:o-i64:64-f80:128-n8:16:32:64-S128"target triple="x86_64-apple-macosx10.14.0"%struct.__NSConstantString_tag = type { i32*, i3...
比如 bin/opt 就是对 IR 的优化器,bin/llc 就是 IR->ASM 的翻译,bin/llvm-mc 就是汇编器。如果你再从http://llvm.org下载 Clang,那么就有了 C->IR 的翻译以及完整的编译器 Driver。GDB 是 GNU 的调试器。只要编译器支持 DWARF 格式,就可以用 GDB 调试。
命令行输入:clang -E pp.c -o pp2.c && cat pp2.c 输出: # 1 "pp.c" # 1 "<built-in>" 1 # 1 "<built-in>" 3 # 349 "<built-in>" 3 # 1 "" 1 # 1 "<built-in>" 2 # 1 "pp.c" 2 int main() { return 0; } 3、语法分析 待分析代码 同上 min.c 命令行输入:clang...
attributes #0 = { noinline optnone ssp uwtable "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nan...
.o文件是链接文件,.a是静态库文件,需要 .o 文件生成,作为一个库为外部程序提供函数接口。详细的可以看一下博文镜像文件(Image)/可执行文件/ELF文件/对象文件 详解。 ??在交叉编译工具链目录中,有大量的.o和.a文件。这些文件在我们编译目标平台时会被用到!为什么在 Windows 下面的编译工具链中会有这么多的 ....
In the absence of an explicit output file, the file is chosen using the following scheme: .opt. where is based on the output file of the compilation (whether it's explicitly specified through -o or not) when used with -c or -S. For example: • clang -fsave-optimization-record -c...
Disable optimization /Oi- Disable use of builtin functions /Oi Enable use of builtin functions /Os Optimize for size /Ot Optimize for speed /O<value> Optimization level /o <file or directory> Set output file or directory (ends in / or \) /P Preprocess to file /Qvec- Disable the ...