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A much more limited form of WPO is still possible without LTO, as exemplified by GCC's -fwhole-program switch. This mode makes GCC assume that the module being compiled contains the entry point of the entire program, so that every other function in it is not externally used and can be safely optimized away. Since it only applies to a single ...
GCC has been ported to more platforms and instruction set architectures than any other compiler, and is widely deployed as a tool in the development of both free and proprietary software. GCC is also available for many embedded systems, including ARM-based and Power ISA-based chips.
GNU Fortran (GFortran) is an implementation of the Fortran programming language in the GNU Compiler Collection (GCC), an open-source and free software project maintained in the open-source programmer community under the umbrella of the GNU Project. It is the successor to previous compiler versions in the suite, such as g77.
The GNU toolchain is a broad collection of programming tools produced by the GNU Project.These tools form a toolchain (a suite of tools used in a serial manner) used for developing software applications and operating systems.
MILEPOST GCC: interactive plugin-based open-source research compiler that combines the strength of GCC and the flexibility of the common Interactive Compilation Interface that transforms production compilers into interactive research toolsets.
In computer programming, profile-guided optimization (PGO, sometimes pronounced as pogo [1]), also known as profile-directed feedback (PDF) [2] or feedback-directed optimization (FDO), [3] is the compiler optimization technique of using prior analyses of software artifacts or behaviors ("profiling") to improve the expected runtime performance of the program.
An intermediate language is the language of an abstract machine designed to aid in the analysis of computer programs.The term comes from their use in compilers, where the source code of a program is translated into a form more suitable for code-improving transformations before being used to generate object or machine code for a target machine.
By way of comparison, on early segmented systems such as Burroughs MCP on the Burroughs B5000 (1961) and Multics (1964), and on paging systems such as IBM TSS/360 (1967) [c], code was also inherently position-independent, since subroutine virtual addresses in a program were located in private data external to the code, e.g., program reference ...