RFR(L): 8031321 Support Intel bit manipulation instructions
forax at univ-mlv.fr
Fri Feb 7 00:08:26 PST 2014
On 02/06/2014 11:10 PM, Igor Veresov wrote:
> This change adds support for BMI1 instructions on x86 (supported on AMD Piledriver and Intel Haswell).
> The changes in the matcher.cpp are kind of a temporary hack to workaround the inability to describe DAGs in ADL. I’ll address that problem properly a bit later (we need this change to land in 8u20).
> I’m also using Rickard’s changes in type.hpp that are not quite in the repo yet.
> Webrev: http://cr.openjdk.java.net/~iveresov/8031321/webrev.00/
> Testing: jprt, jtreg, ctw, the new regtest (verified that the instructions are generated and all).
just crawling the code,
there is a cut & paste error in global_x86, the description of
UseBMI1Instructions is not correct.
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