Merge pull request #7287 from jmesyou/docs/options/gcr

Fix explanation for enableGuardedCountingRecompilation

compiler/control/OMROptions.cpp

@@ -345,7 +345,7 @@ TR::OptionTable OMR::Options::_jitOptions[] = {
    {"disableGRA",                         "O\tdisable IL based global register allocator",     TR::Options::disableOptimization, tacticalGlobalRegisterAllocator, 0, "P"},
    {"disableGRACostBenefitModel",         "O\tdisable GRA cost/benefit model",                 RESET_OPTION_BIT(TR_EnableGRACostBenefitModel), "F" },
    {"disableGuardedCallArgumentRemat",    "O\tdon't rematerialize a guarded virtual call's arguments on the cold path; instead, leave the expressions on the mainline path", SET_OPTION_BIT(TR_DisableGuardedCallArgumentRemat), "F"},
-   {"disableGuardedCountingRecompilation","O\tDisable insertion of a recompilation counter at the beginning of the method due to the original compile being done early", SET_OPTION_BIT(TR_DisableGuardedCountingRecompilations), "F"},
+   {"disableGuardedCountingRecompilation","O\tdisable insertion of recompilation counters with guards", SET_OPTION_BIT(TR_DisableGuardedCountingRecompilations), "F"},
    {"disableGuardedCountingRecompilations","O\tdeprecated.  Same as disableGuardedCountingRecompilation", SET_OPTION_BIT(TR_DisableGuardedCountingRecompilations), "F"},
    {"disableGuardedStaticFinalFieldFolding", "O\tdisable static final field folding guarded by OSR guards", SET_OPTION_BIT(TR_DisableGuardedStaticFinalFieldFolding), "F", NOT_IN_SUBSET },
    {"disableHalfSlotSpills",              "O\tdisable sharing of a single 8-byte spill temp for two 4-byte values",  SET_OPTION_BIT(TR_DisableHalfSlotSpills), "P"},
@@ -702,7 +702,7 @@ TR::OptionTable OMR::Options::_jitOptions[] = {
    {"enableGPU=",                          "L{regex}\tlist of additional GPU options: enforce, verbose, details, safeMT, enableMath",
         TR::Options::setBitsFromStringSet, offsetof(OMR::Options, _enableGPU), 0, "F"},
    {"enableGRACostBenefitModel",          "O\tenable GRA cost/benefit model", SET_OPTION_BIT(TR_EnableGRACostBenefitModel), "F" },
-   {"enableGuardedCountingRecompilation", "O\tenable GCR.  If you don't know what that is, I don't have room to explain it here.", RESET_OPTION_BIT(TR_DisableGuardedCountingRecompilations), "F"},
+   {"enableGuardedCountingRecompilation", "O\tinserts recompilation counters with guards to allow the compiler to selectively trigger recompilation", RESET_OPTION_BIT(TR_DisableGuardedCountingRecompilations), "F"},
    {"enableHalfSlotSpills",               "O\tenable sharing of a single 8-byte spill temp for two 4-byte values",  RESET_OPTION_BIT(TR_DisableHalfSlotSpills), "P"},
    {"enableHardwareProfileIndirectDispatch","O\tenable hardware profile indirect dispatch profiling", SET_OPTION_BIT(TR_EnableHardwareProfileIndirectDispatch), "F", NOT_IN_SUBSET},
    {"enableHardwareProfilerDuringStartup", "O\tenable hardware profiler during startup", RESET_OPTION_BIT(TR_DisableHardwareProfilerDuringStartup), "F", NOT_IN_SUBSET},