JDK-8004835 : Improve AES intrinsics on x86
- Type: Enhancement
- Component: hotspot
- Sub-Component: compiler
- Priority: P3
- Status: Resolved
- Resolution: Fixed
- CPU: x86
- Submitted: 2012-12-11
- Updated: 2013-06-26
- Resolved: 2012-12-20
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| JDK 7 | JDK 8 | Other |
|---|---|---|
7u40Fixed  |
8Fixed |
hs24Fixed |
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Description
1. Allow to run AES intrinsics on non-AVX cpus because pshufb instructions references only aligned memory "key_shuffle_mask". 2. Group together aes instructions in encryptBlock/decryptBlock stubs: pre-load keys into separate xmm registers before aes instructions.