-mtrap-large-shift -mhandle-large-shift 包含 一些 指令, 用於 檢測 大於 31 位的 位移 (bit-shift); 根據 相應的 選項, 對 這樣 的 位移 發出 自陷 (trap) 或 執行 適當 的 處理代碼. 預設情況下, GCC 對 大位移 不做 特別處理. -muse-div-instruction 很早以前 的 88K 型號 沒有 (div) ...
我们抓住核心,主要有三步: 第一步是使用登录后复制/usr/lib/gcc/x86_64-linux-gnu/9/cc1编译.c文件,生成/tmp/ccvW5Igg.s; 第二步是使用登录后复制as编译.s文件,生成/tmp/cc17VwSh.o; 第三步是使用登录后复制/usr/lib/gcc/x86_64-linux-gnu/9/collect2链接.o文件,生成a.out。 从第三步我们可以...
Using built-in specs.COLLECT_GCC=gccCOLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-pc-linux-gnu/14.2.1/lto-wrapperTarget: x86_64-pc-linux-gnuConfigured with: /build/gcc/src/gcc/configure --enable-languages=ada,c,c++,d,fortran,go,lto,m2,objc,obj-c++,rust --enable-bootstrap --prefix=/usr ...
Support for the large code model via option -mcmodel=large, thanks to Kuan-Lin Chen from Andes Technology. Support for the standard vector calling convention variant, thanks to Lehua Ding from RiVAI. Supports the target attribute, which allows users to compile a function with specific extensions....
*/ poly_uint64 max_nunits; /* The DEF type of this node. */ enum vect_def_type def_type; /* The number of scalar lanes produced by this node. */ unsigned int lanes; /* The operation of this node. */ enum tree_code code; int vertex; /* If not NULL this is a cached ...
large-function-insns 指定非常大的函数的限制。 对于大于此限制的函数,内联受 --param large-function-growth 约束。 该参数主要用于避免后端使用的非线性算法导致极端的编译时间。 当不使用 -funit-at-a-time 时,该参数将被忽略。 默认值为 3000。
- __morestack_large_model #endif #endif /* __x86_64__ && __LP64__ */ # Initialize the stack test value when the program starts or when a # new thread starts. We don't know how large the main stack is, so we # guess conservatively. We might be able to use getrlimit here. ...
mlarge-mem -mstdmain -mfixed-range=register-range -mea32 -mea64 -maddress-space-conversion -mno-address-space-conversion -mcache-size=cache-size -matomic-updates -mno-atomic-updates System V Options -Qy -Qn -YP,paths -Ym,dir TILE-Gx Options -mcpu=cpu -m32 -m64 -mcmodel=code-model ...
If you cast a negative value into that type, it will be treated as a large unsigned value.The C language standard enables the compiler to choose either signed or unsigned int types to store enums, as long as the type is compatible with all the defined enum values. The Oracle Developer ...
Large numbers of branch mispredictions lead to a high percentage of front-end stalls, which can be measured by the STALL_FRONTEND PMU counter. Applications with a high L2 instruction cache miss rate may also benefit from PGO, possibly related to mis-predicted branches. In summary, a large ...