Search results
Results from the WOW.Com Content Network
In practice, Clang is a drop-in replacement for GCC. [24] Clang's developers aim to reduce memory footprint and increase compiling speed compared to other compilers, such as GCC. In October 2007, they report that Clang compiled the Carbon libraries more than twice as fast as GCC, while using about one-sixth GCC's memory and disk space. [25]
Most BSD family operating systems also switched to GCC shortly after its release, although since then, FreeBSD and Apple macOS have moved to the Clang compiler, [10] largely due to licensing reasons. [ 11 ] [ 12 ] [ 13 ] GCC can also compile code for Windows , Android , iOS , Solaris , HP-UX , AIX and DOS .
For example, compilers are available, e.g. GNU Compiler Collection (GCC) and LLVM/Clang. For cross-compilation a number of complete toolchains are available, like GNU toolchain, OpenWrt Buildroot or OpenEmbedded. The Yocto Project is targeted at embedded use cases.
The C syntactic form used in C99 is supported as an extension in the GCC and Clang C++ compilers. foo (& (struct X){4, 6}); // The object is allocated in the stack and its address can be passed to a function.
Since both GCC and LLVM (clang) are able produce an IR from a variety of programming languages, link-time IPO can happen even across language boundaries. This is most commonly demonstrated with C and C++, [ 9 ] but LLVM makes it possible for Rust and all other LLVM-based compilers too.
Apple was a significant user of LLVM-GCC through Xcode 4.x (2013). [43] [44] This use of the GCC frontend was considered mostly a temporary measure, but with the advent of Clang and advantages of LLVM and Clang's modern and modular codebase (as well as compilation speed), is mostly obsolete.
GCC and Clang are two major C compilers popular today, both based on the C11 with updates including changes from later specifications such as C17. [ 29 ] [ 30 ] Any source code written only in standard C and without any hardware dependent assumptions is virtually guaranteed to compile correctly on any platform with a conforming C implementation.
Most languages supported by GCC are supported on the Mingw-w64 port as well. These include C, C++, Objective-C, Objective-C++, Fortran, and Ada. The GCC runtime libraries are used (libstdc++ for C++, libgfortran for Fortran, etc.). A packaging of LLVM's clang to mingw-w64 is also provided by MSYS2.