1234567: Scott walks in the room. #12
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Fix call to SymbolLookup::find
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changpeng1997
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…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
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Co-authored-by: Xin Liu <xxinliu@amazon.com>
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