New Features Coming Up For The GCC 4.8 Compiler
Written by Michael Larabel in Compiler on 18 October 2012 at 08:56 AM EDT. 1 Comment
Aside from greater C++11 compliance and early C++1y support, GCC 4.8 as the next major Free Software Foundation compiler release will also have many other interesting features.

As outlined on the changes page, there's a lot of stuff piling up for GCC 4.8. Version 4.8 of the GNU Compiler Collection won't be out for several more months, but already there is:

- The -Og optimization level for greater debugging binaries while fast compilation times. (See the recent GCC optimization level benchmarks.)

- A new option (-ftree-partial-pre) for controlling the Partial Redundancy Elimination (PRE) optimization.

- Scalability bottlenecks were removed within GCC's optimization passes that can now lead to significantly faster compilation times with large functions.

- Macro expansion stacks are now displayed by default within the diagnostics for the C language compiler.

- Various new flags for GCC's Fortran compiler.

- Various diagnostics improvements.

- New built-in functions for detecting the CPU and ISA.

- The MIPS R4700 processor is now supported by GCC.

- The SPARC hardware support in GCC 4.8 now has optimized instruction scheduling for Oracle's Niagara 4 SPARC processor.

- Its code-base has been converted to C++.

- AMD Steamroller support, a.k.a. Bulldozer 3.

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Michael Larabel is the principal author of and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and automated benchmarking software. He can be followed via Twitter or contacted via

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