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Type: Enhancement
Resolution: Fixed
Priority: P3
Fix Version/s: 16
Affects Version/s: 16
Component/s: hotspot
Labels:
- c2
- performance

Subcomponent:
compiler
Resolved In Build:
b28

Call devirtualization happens only during parsing.
If devirtualization fails, virtual call is issued and it stays the same irrespective of receiver type changes (later optimization passes can improve the type so devirtualization becomes possible).
With the introduction of post-parse inlining, it becomes possible to inline through virtual calls as well if there's enough type information available.

relates to

JDK-8260279 JVM crashes in LateInlineVirtualCallGenerator::do_late_inline when using -XX:+PrintOptoInlining

Open

JDK-8273409 Receiver type narrowed by CCP does not always trigger post-parse call devirtualization

Resolved

JDK-8260580 Merge LateInlineVirtualCallGenerator codes from upstream

Closed

JDK-8263587 C2: JVMS not cloned when needs_clone_jvms() is true

Resolved

JDK-8244675 assert(IncrementalInline || (_late_inlines.length() == 0 && !has_mh_late_inlines()))

Resolved

JDK-8257624 C2: PhaseMacroExpand::eliminate_macro_nodes() crashes on out-of-bounds access into macro node array

Resolved

JDK-8257630 C2: ReplacedNodes doesn't handle non-CFG multi nodes

Resolved

JDK-8257631 C2: Assertion failure in ArrayCopyNode::get_count() during late inlining

Resolved

JDK-8257632 C2: Late inlining attempt on a call with a dead memory crashes

Resolved

JDK-8264320 ShouldNotReachHere in Compile::print_inlining_move_to()

Resolved

JDK-8336726 C2: assert(!do_asserts || projs->fallthrough_ioproj != nullptr) failed: must be found

Resolved

JDK-8277055 Assert "missing inlining msg" with -XX:+PrintIntrinsics

Resolved

JDK-8271276 C2: Wrong JVM state used for receiver null check

Closed

JDK-8273165 GraphKit::combine_exception_states fails with "matching stack sizes" assert

Closed

links to

Commit openjdk/jdk/62c7788b

Review openjdk/jdk/1550

(9 relates to, 2 links to)

Assignee:: Vladimir Ivanov

Reporter:: Vladimir Ivanov

Votes:: 0 Vote for this issue

Watchers:: 4 Start watching this issue

Created:: 2020-11-27 06:53

Updated:: 2024-12-20 11:37

Resolved:: 2020-12-07 14:51

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