Command-line options enable you to control the level of optimization.
The compiler compiles the following different varieties of C and C++ source code into ARM
and Thumb® code:
ISO Standard C:1990 source.
ISO Standard C:1999 source.
ISO Standard C++:2003 source.
Publications on the C and C++ standards are available from national standards bodies. For
example, AFNOR in France and ANSI in the USA.
The compiler also provides a vectorization mode for ARM processors that have NEON™ technology, enabling use of the ARM Advanced Single Instruction Multiple Data (SIMD) extension.
Vectorization involves the compiler generating NEON vector instructions directly from C or
armcc complies with the Base Standard Application Binary Interface
for the ARM Architecture (BSABI). In particular, the compiler:
Generates output objects in ELF format.
NoteThe Evaluation, LabVIEW Evaluation, 64K and Basic variants produce objects
in the ORC_Keil_OBJECT format only. All other variants produce ELF objects.
Generates Debug With Arbitrary Record Format Debugging Standard Version
3 (DWARF 3) debug information and contains support for DWARF 2 debug tables.
- Uses the Edison Design Group (EDG) front end.
Many features of the compiler are designed to take advantage of the target processor or
architecture that your code is designed to run on, so knowledge of your target processor or
architecture is useful, and in some cases, essential, when working with the compiler.