8184036: Restore -XX:UseAVX=3 as product value
Reviewed-by: dlong, roland

8183103: Post loop vectorization produces incorrect results
Summary: Disable AVX=3 and PostLoopMultiversioning by default and make them experimental in JDK 9.
Reviewed-by: kvn

8166561: [s390] Adaptions needed for s390 port in C1 and C2.
Reviewed-by: kvn

8153340: Disallow misconfiguration and improve the consistency of allocation prefetching
Summary: Improve allocation prefetching.
Reviewed-by: kvn

8146801: Allocating short arrays of non-constant size is slow
Reviewed-by: kvn, twisti, vlivanov

8146478: Node limit exceeded with -XX:AllocateInstancePrefetchLines=1073741823
Summary: Constrain the set of accepted values for the Allocate{PrefetchLines, InstancePrefetchLines, PrefetchStepSize, PrefetchDistance} flags. Increase macro node expansion budget.
Reviewed-by: kvn

8141042: Typos and refactoring in Compiler constraints functions
Reviewed-by: vlivanov, zmajo, kvn

8078554: Compiler: implement ranges (optionally constraints) for those flags that have them missing
Summary: Add range check or constraint where necessary.
Reviewed-by: roland, thartmann

8136421: JEP 243: Java-Level JVM Compiler Interface
Reviewed-by: ihse, alanb, roland, coleenp, iveresov, kvn, kbarrett

8112746: Followup to JDK-8059557 (JEP 245)
Summary: Several improvements to range/constraint check feature.
Reviewed-by: coleenp, ddmitriev, sangheki, kbarrett

Merge

8132525: java -client -XX:+TieredCompilation -XX:CICompilerCount=1 -version asserts since 8130858
Summary: TieredCompilation not validated when CICompilerCount is processed
Reviewed-by: kvn, gziemski

Merge

8130459: Add additional validation after heap creation
Summary: Some PLAB related flags' validation can happen after heap creation. Introduced additional stage of validation check.
Reviewed-by: coleenp, dholmes, kbarrett, gziemski, ecaspole, ddmitriev

8130858: CICompilerCount=1 when tiered is off is not allowed any more
Summary: 8122937 broke handling of CICompilerCount
Reviewed-by: kvn, vlivanov, gziemski

8122937: [JEP 245] Validate JVM Command-Line Flag Arguments.
Summary: Validate the arguments to all JVM command-line flags so as to avoid crashes, and ensure that appropriate error messages are displayed when they are invalid.
Reviewed-by: ddmitriev, dholmes, kbarrett, drwhite, brutisso, coleenp