Bug ID: JDK-8055494 Add C2 x86 intrinsic for BigInteger::multiplyToLen() method

JDK-8055494 : Add C2 x86 intrinsic for BigInteger::multiplyToLen() method

Type: Enhancement
Component: hotspot
Sub-Component: compiler
Affected Version: 8u40,9

Priority: P3
Status: Resolved
Resolution: Fixed
OS: generic
CPU: x86

Submitted: 2014-08-19
Updated: 2016-10-05
Resolved: 2014-09-02

Versions (Unresolved/Resolved/Fixed)

The Version table provides details related to the release that this issue/RFE will be addressed.

Unresolved : Release in which this issue/RFE will be addressed.
Resolved: Release in which this issue/RFE has been resolved.
Fixed : Release in which this issue/RFE has been fixed. The release containing this fix may be available for download as an Early Access Release or a General Availability Release.

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JDK 8	JDK 9
8u40Fixed	9 b31Fixed

Related Reports

Relates :	JDK-8059139 - It should be possible to explicitly disable usage of TZCNT instr w/ -XX:-UseBMI1Instructions
Relates :	JDK-8080157 - assert(allocates2(pc)) failed: not in CodeBuffer memory
Relates :	JDK-8057758 - Tests run TypeProfileLevel=222 crash with guarantee(0) failed: must find derived/base pair
Relates :	JDK-8167199 - Add C2 SPARC intrinsic for BigInteger::multiplyToLen() method

Description

We see about ~5% performance improvement for SPECjvm2008 crypto.rsa benchmark on Haswell EP.