Port of all JIT changes for .NET Framework 4.6.1 changes

    http://blogs.msdn.com/b/dotnet/archive/2015/11/30/net-framework-4-6-1-is-now-available.aspx

.NET Framework list of changes in 4.6.1
    https://github.com/Microsoft/dotnet/blob/master/releases/net461/dotnet461-changes.md

Additional changes including
-    Working ARM64 JIT compiler
-    Additional JIT Optimizations
     o    Tail call recursion optimization
     o    Array length tracking optimization
     o    CSE for widening casts
     o    Smaller encoding for RIP relative and absolute addresses in addressing modes
     o    Tracked Local Variable increased to 512
     o    Improved handling of Intrinsics System.GetType()
     o    Improved handling of Math intrinsics
-    Work for the X86 Ryu-JIT compiler

[tfs-changeset: 1557101]

1 files changed, 51 insertions, 50 deletions

diff --git a/src/jit/compphases.h b/src/jit/compphases.h
index ffb7cc0967..b520ef2377 100644
--- a/src/jit/compphases.h
+++ b/src/jit/compphases.h
@@ -19,72 +19,73 @@
 //         (We should never do EndPhase on a phase that has children, only on 'leaf phases.')
 //     "parent" is -1 for leaf phases, otherwise it is the "enumName" of the parent phase.
 
-CompPhaseNameMacro(PHASE_PRE_IMPORT,             "Pre-import",                     false, -1)
-CompPhaseNameMacro(PHASE_IMPORTATION,            "Importation",                    false, -1)
-CompPhaseNameMacro(PHASE_POST_IMPORT,            "Post-import",                    false, -1)
-CompPhaseNameMacro(PHASE_MORPH,                  "Morph",                          false, -1)
-CompPhaseNameMacro(PHASE_GS_COOKIE,              "GS Cookie",                      false, -1)
-CompPhaseNameMacro(PHASE_COMPUTE_PREDS,          "Compute preds",                  false, -1)
-CompPhaseNameMacro(PHASE_MARK_GC_POLL_BLOCKS,    "Mark GC poll blocks",            false, -1)
-CompPhaseNameMacro(PHASE_COMPUTE_EDGE_WEIGHTS,   "Compute edge weights (1)",       false, -1)
+CompPhaseNameMacro(PHASE_PRE_IMPORT,             "Pre-import",                     "PRE-IMP",  false, -1)
+CompPhaseNameMacro(PHASE_IMPORTATION,            "Importation",                    "IMPORT",   false, -1)
+CompPhaseNameMacro(PHASE_POST_IMPORT,            "Post-import",                    "POST-IMP", false, -1)
+CompPhaseNameMacro(PHASE_MORPH,                  "Morph",                          "MORPH",    false, -1)
+CompPhaseNameMacro(PHASE_GS_COOKIE,              "GS Cookie",                      "GS-COOK",  false, -1)
+CompPhaseNameMacro(PHASE_COMPUTE_PREDS,          "Compute preds",                  "PREDS",    false, -1)
+CompPhaseNameMacro(PHASE_MARK_GC_POLL_BLOCKS,    "Mark GC poll blocks",            "GC-POLL",  false, -1)
+CompPhaseNameMacro(PHASE_COMPUTE_EDGE_WEIGHTS,   "Compute edge weights (1)",       "EDG-WGT",  false, -1)
 #if FEATURE_EH_FUNCLETS
-CompPhaseNameMacro(PHASE_CREATE_FUNCLETS, "Create EH funclets", false, -1)
+CompPhaseNameMacro(PHASE_CREATE_FUNCLETS,        "Create EH funclets",             "EH-FUNC",  false, -1)
 #endif // FEATURE_EH_FUNCLETS
-CompPhaseNameMacro(PHASE_OPTIMIZE_LAYOUT,        "Optimize layout",                false, -1)
-CompPhaseNameMacro(PHASE_OPTIMIZE_LOOPS,         "Optimize loops",                 false, -1)
-CompPhaseNameMacro(PHASE_CLONE_LOOPS,            "Clone loops",                    false, -1)
-CompPhaseNameMacro(PHASE_UNROLL_LOOPS,           "Unroll loops",                   false, -1)
-CompPhaseNameMacro(PHASE_HOIST_LOOP_CODE,        "Hoist loop code",                false, -1)
-CompPhaseNameMacro(PHASE_MARK_LOCAL_VARS,        "Mark local vars",                false, -1)
-CompPhaseNameMacro(PHASE_OPTIMIZE_BOOLS,         "Optimize bools",                 false, -1)
-CompPhaseNameMacro(PHASE_FIND_OPER_ORDER,        "Find oper order",                false, -1)
-CompPhaseNameMacro(PHASE_SET_BLOCK_ORDER,        "Set block order",                false, -1)
-CompPhaseNameMacro(PHASE_BUILD_SSA,              "Build SSA representation",       true,  -1)
-CompPhaseNameMacro(PHASE_BUILD_SSA_TOPOSORT,     "SSA: topological sort",          false, PHASE_BUILD_SSA)
-CompPhaseNameMacro(PHASE_BUILD_SSA_DOMS,         "SSA: Doms1",                     false, PHASE_BUILD_SSA)
-CompPhaseNameMacro(PHASE_BUILD_SSA_LIVENESS,     "SSA: liveness",                  false, PHASE_BUILD_SSA)
-CompPhaseNameMacro(PHASE_BUILD_SSA_IDF,          "SSA: IDF",                       false, PHASE_BUILD_SSA)
-CompPhaseNameMacro(PHASE_BUILD_SSA_INSERT_PHIS,  "SSA: insert phis",               false, PHASE_BUILD_SSA)
-CompPhaseNameMacro(PHASE_BUILD_SSA_RENAME,       "SSA: rename",                    false, PHASE_BUILD_SSA)
+CompPhaseNameMacro(PHASE_OPTIMIZE_LAYOUT,        "Optimize layout",                "LAYOUT",   false, -1)
+CompPhaseNameMacro(PHASE_OPTIMIZE_LOOPS,         "Optimize loops",                 "LOOP-OPT", false, -1)
+CompPhaseNameMacro(PHASE_CLONE_LOOPS,            "Clone loops",                    "LP-CLONE", false, -1)
+CompPhaseNameMacro(PHASE_UNROLL_LOOPS,           "Unroll loops",                   "UNROLL",   false, -1)
+CompPhaseNameMacro(PHASE_HOIST_LOOP_CODE,        "Hoist loop code",                "LP-HOIST", false, -1)
+CompPhaseNameMacro(PHASE_MARK_LOCAL_VARS,        "Mark local vars",                "MARK-LCL", false, -1)
+CompPhaseNameMacro(PHASE_OPTIMIZE_BOOLS,         "Optimize bools",                 "OPT-BOOL", false, -1)
+CompPhaseNameMacro(PHASE_FIND_OPER_ORDER,        "Find oper order",                "OPER-ORD", false, -1)
+CompPhaseNameMacro(PHASE_SET_BLOCK_ORDER,        "Set block order",                "BLK-ORD",  false, -1)
+CompPhaseNameMacro(PHASE_BUILD_SSA,              "Build SSA representation",       "SSA",      true,  -1)
+CompPhaseNameMacro(PHASE_BUILD_SSA_TOPOSORT,     "SSA: topological sort",          "SSA-SORT", false, PHASE_BUILD_SSA)
+CompPhaseNameMacro(PHASE_BUILD_SSA_DOMS,         "SSA: Doms1",                     "SSA-DOMS", false, PHASE_BUILD_SSA)
+CompPhaseNameMacro(PHASE_BUILD_SSA_LIVENESS,     "SSA: liveness",                  "SSA-LIVE", false, PHASE_BUILD_SSA)
+CompPhaseNameMacro(PHASE_BUILD_SSA_IDF,          "SSA: IDF",                       "SSA-IDF",  false, PHASE_BUILD_SSA)
+CompPhaseNameMacro(PHASE_BUILD_SSA_INSERT_PHIS,  "SSA: insert phis",               "SSA-PHI",  false, PHASE_BUILD_SSA)
+CompPhaseNameMacro(PHASE_BUILD_SSA_RENAME,       "SSA: rename",                    "SSA-REN",  false, PHASE_BUILD_SSA)
 
-CompPhaseNameMacro(PHASE_VALUE_NUMBER,           "Do value numbering",             false, -1)
+CompPhaseNameMacro(PHASE_EARLY_PROP,             "Early Value Propagation",        "ERL-PROP", false, -1)
+CompPhaseNameMacro(PHASE_VALUE_NUMBER,           "Do value numbering",             "VAL-NUM",  false, -1)
 
-CompPhaseNameMacro(PHASE_OPTIMIZE_INDEX_CHECKS,  "Optimize index checks",          false, -1)
+CompPhaseNameMacro(PHASE_OPTIMIZE_INDEX_CHECKS,  "Optimize index checks",          "OPT-CHK",  false, -1)
 
 #if FEATURE_VALNUM_CSE
-CompPhaseNameMacro(PHASE_OPTIMIZE_VALNUM_CSES,   "Optimize Valnum CSEs",           false, -1)
+CompPhaseNameMacro(PHASE_OPTIMIZE_VALNUM_CSES,   "Optimize Valnum CSEs",           "OPT-CSE",  false, -1)
 #endif  
 
-CompPhaseNameMacro(PHASE_VN_COPY_PROP,           "VN based copy prop",             false, -1)
+CompPhaseNameMacro(PHASE_VN_COPY_PROP,           "VN based copy prop",             "CP-PROP",  false, -1)
 #if ASSERTION_PROP
-CompPhaseNameMacro(PHASE_ASSERTION_PROP_MAIN,    "Assertion prop",                 false, -1)
+CompPhaseNameMacro(PHASE_ASSERTION_PROP_MAIN,    "Assertion prop",                 "AST-PROP", false, -1)
 #endif
-CompPhaseNameMacro(PHASE_UPDATE_FLOW_GRAPH,      "Update flow graph",              false, -1)
-CompPhaseNameMacro(PHASE_COMPUTE_EDGE_WEIGHTS2,  "Compute edge weights (2)",       false, -1)
-CompPhaseNameMacro(PHASE_DETERMINE_FIRST_COLD_BLOCK, "Determine first cold block", false, -1)
-CompPhaseNameMacro(PHASE_RATIONALIZE,            "Rationalize IR",                 false, -1)
-CompPhaseNameMacro(PHASE_SIMPLE_LOWERING,        "Do 'simple' lowering",           false, -1)
+CompPhaseNameMacro(PHASE_UPDATE_FLOW_GRAPH,      "Update flow graph",              "UPD-FG",   false, -1)
+CompPhaseNameMacro(PHASE_COMPUTE_EDGE_WEIGHTS2,  "Compute edge weights (2)",       "EDG-WGT2", false, -1)
+CompPhaseNameMacro(PHASE_DETERMINE_FIRST_COLD_BLOCK, "Determine first cold block", "COLD-BLK", false, -1)
+CompPhaseNameMacro(PHASE_RATIONALIZE,            "Rationalize IR",                 "RAT",      false, -1)
+CompPhaseNameMacro(PHASE_SIMPLE_LOWERING,        "Do 'simple' lowering",           "SMP-LWR",  false, -1)
 
-CompPhaseNameMacro(PHASE_LCLVARLIVENESS,         "Local var liveness",             true, -1)
-CompPhaseNameMacro(PHASE_LCLVARLIVENESS_INIT,    "Local var liveness init",        false, PHASE_LCLVARLIVENESS)
-CompPhaseNameMacro(PHASE_LCLVARLIVENESS_PERBLOCK,"Per block local var liveness",   false, PHASE_LCLVARLIVENESS)
-CompPhaseNameMacro(PHASE_LCLVARLIVENESS_INTERBLOCK,  "Global local var liveness",  false, PHASE_LCLVARLIVENESS)
+CompPhaseNameMacro(PHASE_LCLVARLIVENESS,         "Local var liveness",             "LIVENESS", true, -1)
+CompPhaseNameMacro(PHASE_LCLVARLIVENESS_INIT,    "Local var liveness init",        "LIV-INIT", false, PHASE_LCLVARLIVENESS)
+CompPhaseNameMacro(PHASE_LCLVARLIVENESS_PERBLOCK,"Per block local var liveness",   "LIV-BLK",  false, PHASE_LCLVARLIVENESS)
+CompPhaseNameMacro(PHASE_LCLVARLIVENESS_INTERBLOCK,  "Global local var liveness",  "LIV-GLBL", false, PHASE_LCLVARLIVENESS)
 
-CompPhaseNameMacro(PHASE_LVA_ADJUST_REF_COUNTS,  "LVA adjust ref counts",          false, -1)
+CompPhaseNameMacro(PHASE_LVA_ADJUST_REF_COUNTS,  "LVA adjust ref counts",          "REF-CNT",  false, -1)
 
 #ifdef LEGACY_BACKEND
-CompPhaseNameMacro(PHASE_RA_ASSIGN_VARS,         "RA assign vars",                 false, -1)
+CompPhaseNameMacro(PHASE_RA_ASSIGN_VARS,         "RA assign vars",                 "REGALLOC", false, -1)
 #endif // LEGACY_BACKEND
-CompPhaseNameMacro(PHASE_LOWERING_DECOMP,        "Lowering decomposition",         false, -1)
-CompPhaseNameMacro(PHASE_LOWERING,               "Lowering nodeinfo",              false, -1)
+CompPhaseNameMacro(PHASE_LOWERING_DECOMP,        "Lowering decomposition",         "LWR-DEC",  false, -1)
+CompPhaseNameMacro(PHASE_LOWERING,               "Lowering nodeinfo",              "LWR-INFO", false, -1)
 #ifndef LEGACY_BACKEND
-CompPhaseNameMacro(PHASE_LINEAR_SCAN,            "Linear scan register alloc",     true, -1)
-CompPhaseNameMacro(PHASE_LINEAR_SCAN_BUILD,      "LSRA build intervals",           false, PHASE_LINEAR_SCAN)
-CompPhaseNameMacro(PHASE_LINEAR_SCAN_ALLOC,      "LSRA allocate",                  false, PHASE_LINEAR_SCAN)
-CompPhaseNameMacro(PHASE_LINEAR_SCAN_RESOLVE,    "LSRA resolve",                   false, PHASE_LINEAR_SCAN)
+CompPhaseNameMacro(PHASE_LINEAR_SCAN,            "Linear scan register alloc",     "LSRA",     true, -1)
+CompPhaseNameMacro(PHASE_LINEAR_SCAN_BUILD,      "LSRA build intervals",           "LSRA-BLD", false, PHASE_LINEAR_SCAN)
+CompPhaseNameMacro(PHASE_LINEAR_SCAN_ALLOC,      "LSRA allocate",                  "LSRA-ALL", false, PHASE_LINEAR_SCAN)
+CompPhaseNameMacro(PHASE_LINEAR_SCAN_RESOLVE,    "LSRA resolve",                   "LSRA-RES", false, PHASE_LINEAR_SCAN)
 #endif // !LEGACY_BACKEND
-CompPhaseNameMacro(PHASE_GENERATE_CODE,          "Generate code",                  false, -1)
-CompPhaseNameMacro(PHASE_EMIT_CODE,              "Emit code",                      false, -1)
-CompPhaseNameMacro(PHASE_EMIT_GCEH,              "Emit GC+EH tables",              false, -1)
+CompPhaseNameMacro(PHASE_GENERATE_CODE,          "Generate code",                  "CODEGEN",  false, -1)
+CompPhaseNameMacro(PHASE_EMIT_CODE,              "Emit code",                      "EMIT",     false, -1)
+CompPhaseNameMacro(PHASE_EMIT_GCEH,              "Emit GC+EH tables",              "EMT-GCEH", false, -1)
 
 #undef CompPhaseNameMacro