Linked by Thom Holwerda on Thu 23rd Apr 2009 16:47 UTC, submitted by diegocg
GCC 4.4.0 has been released. There are many interesting changes, including the merge of the Graphite branch, which is "a new framework for loop optimizations based on a polyhedral intermediate representation", improved support of the upcoming C++0x standard, and a new register allocator.
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RE[2]: 4.4.x vs LLVM-GCC vs 4.3.x
by shaddack on Fri 24th Apr 2009 09:00
in reply to "RE: 4.4.x vs LLVM-GCC vs 4.3.x"
Member since:2009-04-23
adkilla wrote:
-"Any info on performance? I would like to know how is stacks up against the 4.3.x series and whether it could match llvm-gcc code optimizations."
Haven't had a chance to try it yet, but the new graphite loop optimization framework should potentially give some speedups. Personally the '-fprofile-correction' option will help me since I've had some problems on certain programs with corrupted profiles. As for the llvm performance, can you point me to any benchmarks which shows gcc versus llvm?
-"Any info on performance? I would like to know how is stacks up against the 4.3.x series and whether it could match llvm-gcc code optimizations."
Haven't had a chance to try it yet, but the new graphite loop optimization framework should potentially give some speedups. Personally the '-fprofile-correction' option will help me since I've had some problems on certain programs with corrupted profiles. As for the llvm performance, can you point me to any benchmarks which shows gcc versus llvm?
Is there any site that keeps performace comparisions of compilers? Would be interesting to read that I think.
RE[3]: 4.4.x vs LLVM-GCC vs 4.3.x
by adkilla on Fri 24th Apr 2009 09:13
in reply to "RE[2]: 4.4.x vs LLVM-GCC vs 4.3.x"
Member since:2005-07-07
This is the most comprehensive site IMHO for comparisons:
http://shootout.alioth.debian.org/
For gcc (includes gcc-4.4-svn) vs icc:
http://multimedia.cx/eggs/icc-vs-gcc-smackdown-round-3/
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RE[2]: 4.4.x vs LLVM-GCC vs 4.3.x
by adkilla on Fri 24th Apr 2009 09:09
in reply to "RE: 4.4.x vs LLVM-GCC vs 4.3.x"
Member since:2005-07-07
There is some outdated info here:
http://leonardo-m.livejournal.com/73732.html
I am using icc mostly. I only use gcc when I need to interface with Cocoa or use code that is dependent on gcc extensions.
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Member since:
2006-01-24
adkilla wrote:
-"Any info on performance? I would like to know how is stacks up against the 4.3.x series and whether it could match llvm-gcc code optimizations."
Haven't had a chance to try it yet, but the new graphite loop optimization framework should potentially give some speedups. Personally the '-fprofile-correction' option will help me since I've had some problems on certain programs with corrupted profiles. As for the llvm performance, can you point me to any benchmarks which shows gcc versus llvm?