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  1. JDK
  2. JDK-8302150

Speed up compiler/codegen/Test7100757.java

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        https://github.com/openjdk/jdk/blame/master/test/hotspot/jtreg/compiler/codegen/Test7100757.java

        This test takes 22sec, it is one of the slowest tier1 compiler tests.

        Maybe we can reduce the 5_000_000 iteration count?

        Ensure that all old compilations still happen with -Xbatch -xx:+PrintCompilation
           1553 969 b 3 compiler.codegen.Test7100757::test (274 bytes)
           1559 972 % b 4 compiler.codegen.Test7100757::test @ 206 (274 bytes)
           1569 973 b 4 compiler.codegen.Test7100757::test (274 bytes)
           1600 969 3 compiler.codegen.Test7100757::test (274 bytes) made not entrant
           1627 977 % b 3 compiler.codegen.Test7100757::main @ 32 (65 bytes)
           1628 978 b 3 compiler.codegen.Test7100757::main (65 bytes)
           1644 979 % b 4 compiler.codegen.Test7100757::main @ 32 (65 bytes)
           1649 977 % 3 compiler.codegen.Test7100757::main @ 32 (65 bytes) made not entrant
          10987 979 % 4 compiler.codegen.Test7100757::main @ 32 (65 bytes) made not entrant

        11 vs 1.6 seconds

        without flags: 11 vs 0.7 seconds

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                epeter Emanuel Peter
                epeter Emanuel Peter
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