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Type: Enhancement
Resolution: Fixed
Priority: P4
Fix Version/s: 20
Affects Version/s: 20
Component/s: hotspot
Labels:
- c2
- intrinsic
- performance

Subcomponent:
compiler
Resolved In Build:
b09
CPU:

generic

- Intrinsify scalar bit reverse APIs to emit efficient instruction sequence for X86 targets with and w/o GNFI feature.
- Handle auto-vectorization of Integer/Long.reverse bit operations.
- Backend implementation for these were added with 4th incubation of VectorAPIs.

relates to

JDK-8291559 x86: compiler/vectorization/TestReverseBitsVector.java fails

Resolved

JDK-8293039 Integer.reverse produces incorrect results

Closed

JDK-8296999 AArch64: scalar intrinsics for reverse method in Integer and Long

Resolved

JDK-8288112 C2: Error: ShouldNotReachHere() in Type::typerr()

Resolved

JDK-8291649 multiple tests failing with -Xcomp after JDK-8290034

Closed

links to

Commit openjdk/jdk/5d82d67a

Review openjdk/jdk/9535

(2 links to)

Assignee:: Jatin Bhateja
Reporter:: Jatin Bhateja
Votes:: 0 Vote for this issue
Watchers:: 5 Start watching this issue

Created:: 2022-07-08 13:01
Updated:: 2022-11-15 01:57
Resolved:: 2022-07-27 21:51

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