1234567: Scott walks in the room.#12
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bradfordwetmore wants to merge 1 commit intoopenjdk:masterfrom
bradfordwetmore:bradfordwetmore-patch-1
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1234567: Scott walks in the room.#12bradfordwetmore wants to merge 1 commit intoopenjdk:masterfrom bradfordwetmore:bradfordwetmore-patch-1
bradfordwetmore wants to merge 1 commit intoopenjdk:masterfrom
bradfordwetmore:bradfordwetmore-patch-1
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cushon
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openjdk-notifier Bot
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Oct 27, 2022
Fix call to SymbolLookup::find
JimLaskey
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changpeng1997
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Mar 28, 2023
…te for SVE We can use SVE compare-with-integer-immediate instructions like cmpgt(immediate)[1] to avoid the extra scalar2vector operations. The following instruction sequence ``` movi v17.16b, openjdk#12 cmpgt p0.b, p7/z, z16.b, z17.b ``` can be optimized to: ``` cmpgt p0.b, p7/z, z16.b, openjdk#12 ``` This patch does the following: 1. Add SVE compare-with-7bit-unsigned-immediate instructions to C2's backend. SVE cmp<cc>(immediate) instructions can support vector comparing with 7bit unsigned integer immediate (range from 0 to 127) or 5bit signed integer immediate (range from -16 to 15). 2. Add optimized match rules to generate the compare-with-immediate instructions. [1]: https://developer.arm.com/documentation/ddi0596/2021-12/SVE-Instructions/CMP-cc---immediate---Compare-vector-to-immediate- TEST_LABEL: v1 || n2, aarch64&&ubuntu&&conformance-enabled JDK_SCOPE: hotspot:compiler/vectorapi, jdk:jdk/incubator/vector/ Jira: ENTLLT-5294 Change-Id: I6b915864308faf9a8ec6e35ca1b4948666d75dca
caojoshua
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Mar 29, 2023
Co-authored-by: Xin Liu <xxinliu@amazon.com>
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swesonga
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mo-beck
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Replaced manual region iteration with proper API closure pattern in reset_free_region_timestamps() and shrink_by_time_based_selection(). This is more maintainable and follows G1 API conventions. Issues: Thomas review openjdk#12-13, openjdk#15-16, openjdk#19, openjdk#21, openjdk#27-31
mo-beck
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Replaced manual region iteration with proper API closure pattern in reset_free_region_timestamps() and shrink_by_time_based_selection(). This is more maintainable and follows G1 API conventions. Issues: Thomas review openjdk#12-13, openjdk#15-16, openjdk#19, openjdk#21, openjdk#27-31
mo-beck
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…penjdk#10, openjdk#12: comment updates and default-initialize _last_access_timestamp
mo-beck
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…penjdk#10, openjdk#12: comment updates and default-initialize _last_access_timestamp
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