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