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AMD Excavator Enablement Lands For GCC 4.9

AMD

Published on 18 November 2013 11:21 AM EST
Written by Michael Larabel in AMD
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To complement my article about new features in GCC 4.9, a few hours ago the AMD Excavator "bdbver4" enablement I had talked about as a likely feature did successfully land.

Now within GCC SVN trunk code is the initial support for AMD's Bulldozer 4 / Excavator APU/CPUs that will arrive in 2015 to succeed Bulldozer 3 / Steamroller. The Steamroller APUs still aren't out yet but for making the next annual GCC release, AMD has landed the "Excavator" support.

As I detailed in my original Phoronix post over the GCC bdver4 support, "This next version of AMD's core adds in AVX2 and BMI2 support over the bdver3 optimizations in GCC. Bdver4 is expected to be known with the AMD micro-architecture codename of Excavator. The bdver4 / Excavator scheduling is similar to bdver3 and there's also still three pipelined FP units and two integer units. The CPU instruction extension supersets in full for "bdver4" include BMI, BMI2, TBM, F16C, FMA, AVX, AVX2, XOP, LWP, AES, PCL_MUL, CX16, MOVBE, MMX, SSE, SSE2, SSE3, SSE4A, SSSE3, SSE4.1, SSE4.2, ABM."

The change adding the GCC bdver4 support can be found with this commit.

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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