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New Features Coming Up For The GCC 4.8 Compiler

Compiler

Published on 18 October 2012 08:56 AM EDT
Written by Michael Larabel in Compiler
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.

About The Author
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via and or contacted via .
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