Add new JIT stress modes to the CI system; clean up netci.groovy duplication

1. Add JIT tailcall stress: COMPlus_TailcallStress=1
2. Add "SSE2 only": COMPlus_EnableAVX=0, COMPlus_EnableSSE3_4=0
3. Add new JIT stress regs mode: COMPlus_JitStressRegs=0x1000
   a. Do this plain, with JitStress=2, with CoreFX, and in R2R testing
4. Fix R2R JitStressRegs10 and 80 to actually test 10 and 80! (previously, they
   were passing "x10" and "x80", which get parsed as zero.
5. Delete tons of duplicate code from netci.groovy, and use a table/function
   to determine test display names.

Fixes dotnet/coreclr#8626, dotnet/coreclr#6129, dotnet/coreclr#10004

Commit migrated from https://github.com/dotnet/coreclr/commit/1aaa378a37c97705fee92df7c1450503aee2a346

diff --git a/src/coreclr/netci.groovy b/src/coreclr/netci.groovy
index 944f0c1..02ab148 100755 (executable)
--- a/src/coreclr/netci.groovy
+++ b/src/coreclr/netci.groovy
@@ -57,39 +57,44 @@ class Constants {
     // need to be set to actually enable that stress mode.  The key of the map is the stress mode and
     // the values are the environment variables
     def static jitStressModeScenarios = [
-               'minopts'           : ['COMPlus_JITMinOpts' : '1'],
-               'forcerelocs'       : ['COMPlus_ForceRelocs' : '1'],
-               'jitstress1'        : ['COMPlus_JitStress' : '1'],
-               'jitstress2'        : ['COMPlus_JitStress' : '2'],
-               'jitstressregs1'    : ['COMPlus_JitStressRegs' : '1'],
-               'jitstressregs2'    : ['COMPlus_JitStressRegs' : '2'],
-               'jitstressregs3'    : ['COMPlus_JitStressRegs' : '3'],
-               'jitstressregs4'    : ['COMPlus_JitStressRegs' : '4'],
-               'jitstressregs8'    : ['COMPlus_JitStressRegs' : '8'],
-               'jitstressregs0x10' : ['COMPlus_JitStressRegs' : '0x10'],
-               'jitstressregs0x80' : ['COMPlus_JitStressRegs' : '0x80'],
-               'jitstress2_jitstressregs1'    : ['COMPlus_JitStress' : '2', 'COMPlus_JitStressRegs' : '1'],
-               'jitstress2_jitstressregs2'    : ['COMPlus_JitStress' : '2', 'COMPlus_JitStressRegs' : '2'],
-               'jitstress2_jitstressregs3'    : ['COMPlus_JitStress' : '2', 'COMPlus_JitStressRegs' : '3'],
-               'jitstress2_jitstressregs4'    : ['COMPlus_JitStress' : '2', 'COMPlus_JitStressRegs' : '4'],
-               'jitstress2_jitstressregs8'    : ['COMPlus_JitStress' : '2', 'COMPlus_JitStressRegs' : '8'],
-               'jitstress2_jitstressregs0x10' : ['COMPlus_JitStress' : '2', 'COMPlus_JitStressRegs' : '0x10'],
-               'jitstress2_jitstressregs0x80' : ['COMPlus_JitStress' : '2', 'COMPlus_JitStressRegs' : '0x80'],
-               'corefx_baseline'   : [ : ], // corefx baseline
-               'corefx_minopts'    : ['COMPlus_JITMinOpts' : '1'],
-               'corefx_jitstress1' : ['COMPlus_JitStress' : '1'],
-               'corefx_jitstress2' : ['COMPlus_JitStress' : '2'],
-               'corefx_jitstressregs1'    : ['COMPlus_JitStressRegs' : '1'],
-               'corefx_jitstressregs2'    : ['COMPlus_JitStressRegs' : '2'],
-               'corefx_jitstressregs3'    : ['COMPlus_JitStressRegs' : '3'],
-               'corefx_jitstressregs4'    : ['COMPlus_JitStressRegs' : '4'],
-               'corefx_jitstressregs8'    : ['COMPlus_JitStressRegs' : '8'],
-               'corefx_jitstressregs0x10' : ['COMPlus_JitStressRegs' : '0x10'],
-               'corefx_jitstressregs0x80' : ['COMPlus_JitStressRegs' : '0x80'],
-               'gcstress0x3' : ['COMPlus_GCStress' : '0x3'],
-               'gcstress0xc' : ['COMPlus_GCStress' : '0xC'],
-               'zapdisable'  : ['COMPlus_ZapDisable' : '1', 'COMPlus_ReadyToRun' : '0'],
-               'heapverify1' : ['COMPlus_HeapVerify' : '1'],
+               'minopts'                        : ['COMPlus_JITMinOpts' : '1'],
+               'forcerelocs'                    : ['COMPlus_ForceRelocs' : '1'],
+               'jitstress1'                     : ['COMPlus_JitStress' : '1'],
+               'jitstress2'                     : ['COMPlus_JitStress' : '2'],
+               'jitstressregs1'                 : ['COMPlus_JitStressRegs' : '1'],
+               'jitstressregs2'                 : ['COMPlus_JitStressRegs' : '2'],
+               'jitstressregs3'                 : ['COMPlus_JitStressRegs' : '3'],
+               'jitstressregs4'                 : ['COMPlus_JitStressRegs' : '4'],
+               'jitstressregs8'                 : ['COMPlus_JitStressRegs' : '8'],
+               'jitstressregs0x10'              : ['COMPlus_JitStressRegs' : '0x10'],
+               'jitstressregs0x80'              : ['COMPlus_JitStressRegs' : '0x80'],
+               'jitstressregs0x1000'            : ['COMPlus_JitStressRegs' : '0x1000'],
+               'jitstress2_jitstressregs1'      : ['COMPlus_JitStress' : '2', 'COMPlus_JitStressRegs' : '1'],
+               'jitstress2_jitstressregs2'      : ['COMPlus_JitStress' : '2', 'COMPlus_JitStressRegs' : '2'],
+               'jitstress2_jitstressregs3'      : ['COMPlus_JitStress' : '2', 'COMPlus_JitStressRegs' : '3'],
+               'jitstress2_jitstressregs4'      : ['COMPlus_JitStress' : '2', 'COMPlus_JitStressRegs' : '4'],
+               'jitstress2_jitstressregs8'      : ['COMPlus_JitStress' : '2', 'COMPlus_JitStressRegs' : '8'],
+               'jitstress2_jitstressregs0x10'   : ['COMPlus_JitStress' : '2', 'COMPlus_JitStressRegs' : '0x10'],
+               'jitstress2_jitstressregs0x80'   : ['COMPlus_JitStress' : '2', 'COMPlus_JitStressRegs' : '0x80'],
+               'jitstress2_jitstressregs0x1000' : ['COMPlus_JitStress' : '2', 'COMPlus_JitStressRegs' : '0x1000'],
+               'tailcallstress'                 : ['COMPlus_TailcallStress' : '1'],
+               'jitsse2only'                    : ['COMPlus_EnableAVX' : '0', 'COMPlus_EnableSSE3_4' : '0'],
+               'corefx_baseline'                : [ : ], // corefx baseline
+               'corefx_minopts'                 : ['COMPlus_JITMinOpts' : '1'],
+               'corefx_jitstress1'              : ['COMPlus_JitStress' : '1'],
+               'corefx_jitstress2'              : ['COMPlus_JitStress' : '2'],
+               'corefx_jitstressregs1'          : ['COMPlus_JitStressRegs' : '1'],
+               'corefx_jitstressregs2'          : ['COMPlus_JitStressRegs' : '2'],
+               'corefx_jitstressregs3'          : ['COMPlus_JitStressRegs' : '3'],
+               'corefx_jitstressregs4'          : ['COMPlus_JitStressRegs' : '4'],
+               'corefx_jitstressregs8'          : ['COMPlus_JitStressRegs' : '8'],
+               'corefx_jitstressregs0x10'       : ['COMPlus_JitStressRegs' : '0x10'],
+               'corefx_jitstressregs0x80'       : ['COMPlus_JitStressRegs' : '0x80'],
+               'corefx_jitstressregs0x1000'     : ['COMPlus_JitStressRegs' : '0x1000'],
+               'gcstress0x3'                    : ['COMPlus_GCStress' : '0x3'],
+               'gcstress0xc'                    : ['COMPlus_GCStress' : '0xC'],
+               'zapdisable'                     : ['COMPlus_ZapDisable' : '1', 'COMPlus_ReadyToRun' : '0'],
+               'heapverify1'                    : ['COMPlus_HeapVerify' : '1'],
                'gcstress0xc_zapdisable'             : ['COMPlus_GCStress' : '0xC', 'COMPlus_ZapDisable' : '1', 'COMPlus_ReadyToRun' : '0'],
                'gcstress0xc_zapdisable_jitstress2'  : ['COMPlus_GCStress' : '0xC', 'COMPlus_ZapDisable' : '1', 'COMPlus_ReadyToRun' : '0', 'COMPlus_JitStress'  : '2'],
                'gcstress0xc_zapdisable_heapverify1' : ['COMPlus_GCStress' : '0xC', 'COMPlus_ZapDisable' : '1', 'COMPlus_ReadyToRun' : '0', 'COMPlus_HeapVerify' : '1'],
@@ -107,8 +112,9 @@ class Constants {
                'r2r_jitstressregs3',
                'r2r_jitstressregs4',
                'r2r_jitstressregs8',
-               'r2r_jitstressregsx10',
-               'r2r_jitstressregsx80',
+               'r2r_jitstressregs0x10',
+               'r2r_jitstressregs0x80',
+               'r2r_jitstressregs0x1000',
                'r2r_jitminopts',
                'r2r_jitforcerelocs']
 
@@ -231,6 +237,17 @@ def static getStressModeDisplayName(def scenario) {
     return displayStr
 }
 
+def static getR2RStressModeDisplayName(def scenario) {
+    // Assume the scenario name is one from the r2rJitStressScenarios list, and remove its
+    // "r2r_" prefix.
+    def displayStr = scenario
+    def prefixLength = 'r2r_'.length()
+    if (displayStr.length() >= prefixLength) {
+        displayStr = displayStr.substring(prefixLength, displayStr.length())
+    }
+    return displayStr
+}
+
 // Generates the string for creating a file that sets environment variables
 // that makes it possible to run stress modes.  Writes the script to the file
 // specified by the stepScriptLocation parameter.
@@ -412,8 +429,9 @@ def static addNonPRTriggers(def job, def branch, def isPR, def architecture, def
         case 'r2r_jitstressregs3':
         case 'r2r_jitstressregs4':
         case 'r2r_jitstressregs8':
-        case 'r2r_jitstressregsx10':
-        case 'r2r_jitstressregsx80':
+        case 'r2r_jitstressregs0x10':
+        case 'r2r_jitstressregs0x80':
+        case 'r2r_jitstressregs0x1000':
         case 'r2r_jitminopts':
         case 'r2r_jitforcerelocs':
         case 'gcstress15_pri1r2r':
@@ -500,6 +518,7 @@ def static addNonPRTriggers(def job, def branch, def isPR, def architecture, def
         case 'jitstressregs8':
         case 'jitstressregs0x10':
         case 'jitstressregs0x80':
+        case 'jitstressregs0x1000':
         case 'minopts':
         case 'forcerelocs':
         case 'jitstress1':
@@ -511,6 +530,9 @@ def static addNonPRTriggers(def job, def branch, def isPR, def architecture, def
         case 'jitstress2_jitstressregs8':
         case 'jitstress2_jitstressregs0x10':
         case 'jitstress2_jitstressregs0x80':
+        case 'jitstress2_jitstressregs0x1000':
+        case 'tailcallstress':
+        case 'jitsse2only':
         case 'corefx_baseline':
         case 'corefx_minopts':
         case 'corefx_jitstress1':
@@ -522,6 +544,7 @@ def static addNonPRTriggers(def job, def branch, def isPR, def architecture, def
         case 'corefx_jitstressregs8':
         case 'corefx_jitstressregs0x10':
         case 'corefx_jitstressregs0x80':
+        case 'corefx_jitstressregs0x1000':
         case 'zapdisable':
             if (os != 'CentOS7.1' && !(os in bidailyCrossList)) {
             assert (os == 'Windows_NT') || (os in Constants.crossList)
@@ -682,58 +705,20 @@ def static addTriggers(def job, def branch, def isPR, def architecture, def os,
                             }
                             break
                         case 'r2r_jitstress1':
-                            if (configuration == 'Release' || configuration == 'Checked') {
-                                Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} jitstress1 R2R Build & Test", "(?i).*test\\W+${os}\\W+${configuration}\\W+${scenario}.*")
-                            }
-                            break
                         case 'r2r_jitstress2':
-                            if (configuration == 'Release' || configuration == 'Checked') {
-                                Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} jitstress2 R2R Build & Test", "(?i).*test\\W+${os}\\W+${configuration}\\W+${scenario}.*")
-                            }
-                            break
                         case 'r2r_jitstressregs1':
-                            if (configuration == 'Release' || configuration == 'Checked') {
-                                Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} jitstressregs1 R2R Build & Test", "(?i).*test\\W+${os}\\W+${configuration}\\W+${scenario}.*")
-                            }
-                            break
                         case 'r2r_jitstressregs2':
-                            if (configuration == 'Release' || configuration == 'Checked') {
-                                Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} jitstressregs2 R2R Build & Test", "(?i).*test\\W+${os}\\W+${configuration}\\W+${scenario}.*")
-                            }
-                            break
                         case 'r2r_jitstressregs3':
-                            if (configuration == 'Release' || configuration == 'Checked') {
-                                Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} jitstressregs3 R2R Build & Test", "(?i).*test\\W+${os}\\W+${configuration}\\W+${scenario}.*")
-                            }
-                            break
                         case 'r2r_jitstressregs4':
-                            if (configuration == 'Release' || configuration == 'Checked') {
-                                Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} jitstressregs4 R2R Build & Test", "(?i).*test\\W+${os}\\W+${configuration}\\W+${scenario}.*")
-                            }
-                            break
                         case 'r2r_jitstressregs8':
-                            if (configuration == 'Release' || configuration == 'Checked') {
-                                Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} jitstressregs8 R2R Build & Test", "(?i).*test\\W+${os}\\W+${configuration}\\W+${scenario}.*")
-                            }
-                            break
-                        case 'r2r_jitstressregsx10':
-                            if (configuration == 'Release' || configuration == 'Checked') {
-                                Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} jitstressregsx10 R2R Build & Test", "(?i).*test\\W+${os}\\W+${configuration}\\W+${scenario}.*")
-                            }
-                            break
-                        case 'r2r_jitstressregsx80':
-                            if (configuration == 'Release' || configuration == 'Checked') {
-                                Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} jitstressregsx80 R2R Build & Test", "(?i).*test\\W+${os}\\W+${configuration}\\W+${scenario}.*")
-                            }
-                            break
+                        case 'r2r_jitstressregs0x10':
+                        case 'r2r_jitstressregs0x80':
+                        case 'r2r_jitstressregs0x1000':
                         case 'r2r_jitminopts':
-                            if (configuration == 'Release' || configuration == 'Checked') {
-                                Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} JITMinOpts R2R Build & Test", "(?i).*test\\W+${os}\\W+${configuration}\\W+${scenario}.*")
-                            }
-                            break
                         case 'r2r_jitforcerelocs':
                             if (configuration == 'Release' || configuration == 'Checked') {
-                                Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} ForceRelocs R2R Build & Test", "(?i).*test\\W+${os}\\W+${configuration}\\W+${scenario}.*")
+                                def displayStr = getR2RStressModeDisplayName(scenario)
+                                Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} ${displayStr} R2R Build & Test", "(?i).*test\\W+${os}\\W+${configuration}\\W+${scenario}.*")
                             }
                             break
                         case 'longgc':
@@ -747,60 +732,17 @@ def static addTriggers(def job, def branch, def isPR, def architecture, def os,
                             }
                             break
                         case 'minopts':
-                            assert (os == 'Windows_NT') || (os in Constants.crossList)
-                            Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} Build and Test (Jit - MinOpts)",
-                               "(?i).*test\\W+${os}\\W+${scenario}.*")
-                            break
+                        case 'forcerelocs':
                         case 'jitstress1':
-                            assert (os == 'Windows_NT') || (os in Constants.crossList)
-                            Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} Build and Test (Jit - JitStress=1)",
-                               "(?i).*test\\W+${os}\\W+${scenario}.*")
-                            break
                         case 'jitstress2':
-                            assert (os == 'Windows_NT') || (os in Constants.crossList)
-                            Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} Build and Test (Jit - JitStress=2)",
-                               "(?i).*test\\W+${os}\\W+${scenario}.*")
-                            break
-                        case 'forcerelocs':
-                            assert (os == 'Windows_NT') || (os in Constants.crossList)
-                            Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} Build and Test (Jit - ForceRelocs)",
-                               "(?i).*test\\W+${os}\\W+${scenario}.*")
-                            break
                         case 'jitstressregs1':
-                            assert (os == 'Windows_NT') || (os in Constants.crossList)
-                            Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} Build and Test (Jit - JitStressRegs=1)",
-                               "(?i).*test\\W+${os}\\W+${scenario}.*")
-                            break
                         case 'jitstressregs2':
-                            assert (os == 'Windows_NT') || (os in Constants.crossList)
-                            Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} Build and Test (Jit - JitStressRegs=2)",
-                               "(?i).*test\\W+${os}\\W+${scenario}.*")
-                            break
                         case 'jitstressregs3':
-                            assert (os == 'Windows_NT') || (os in Constants.crossList)
-                            Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} Build and Test (Jit - JitStressRegs=3)",
-                               "(?i).*test\\W+${os}\\W+${scenario}.*")
-                            break
                         case 'jitstressregs4':
-                            assert (os == 'Windows_NT') || (os in Constants.crossList)
-                            Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} Build and Test (Jit - JitStressRegs=4)",
-                               "(?i).*test\\W+${os}\\W+${scenario}.*")
-                            break
                         case 'jitstressregs8':
-                            assert (os == 'Windows_NT') || (os in Constants.crossList)
-                            Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} Build and Test (Jit - JitStressRegs=8)",
-                               "(?i).*test\\W+${os}\\W+${scenario}.*")
-                            break
                         case 'jitstressregs0x10':
-                            assert (os == 'Windows_NT') || (os in Constants.crossList)
-                            Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} Build and Test (Jit - JitStressRegs=0x10)",
-                               "(?i).*test\\W+${os}\\W+${scenario}.*")
-                            break
                         case 'jitstressregs0x80':
-                            assert (os == 'Windows_NT') || (os in Constants.crossList)
-                            Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} Build and Test (Jit - JitStressRegs=0x80)",
-                               "(?i).*test\\W+${os}\\W+${scenario}.*")
-                            break
+                        case 'jitstressregs0x1000':
                         case 'jitstress2_jitstressregs1':
                         case 'jitstress2_jitstressregs2':
                         case 'jitstress2_jitstressregs3':
@@ -808,6 +750,9 @@ def static addTriggers(def job, def branch, def isPR, def architecture, def os,
                         case 'jitstress2_jitstressregs8':
                         case 'jitstress2_jitstressregs0x10':
                         case 'jitstress2_jitstressregs0x80':
+                        case 'jitstress2_jitstressregs0x1000':
+                        case 'tailcallstress':
+                        case 'jitsse2only':
                         case 'gcstress0x3':
                         case 'gcstress0xc':
                         case 'zapdisable':
@@ -834,6 +779,7 @@ def static addTriggers(def job, def branch, def isPR, def architecture, def os,
                         case 'corefx_jitstressregs8':
                         case 'corefx_jitstressregs0x10':
                         case 'corefx_jitstressregs0x80':
+                        case 'corefx_jitstressregs0x1000':
                             def displayName = ('CoreFx ' + getStressModeDisplayName(scenario)).trim()
                             assert (os == 'Windows_NT') || (os in Constants.crossList)
                             Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} Build and Test (Jit - ${displayName})",
@@ -868,58 +814,20 @@ def static addTriggers(def job, def branch, def isPR, def architecture, def os,
                             }
                             break
                         case 'r2r_jitstress1':
-                            if (configuration == 'Release' || configuration == 'Checked') {
-                                Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} jitstress1 R2R Build & Test", "(?i).*test\\W+${os}\\W+${configuration}\\W+${scenario}.*")
-                            }
-                            break
                         case 'r2r_jitstress2':
-                            if (configuration == 'Release' || configuration == 'Checked') {
-                                Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} jitstress2 R2R Build & Test", "(?i).*test\\W+${os}\\W+${configuration}\\W+${scenario}.*")
-                            }
-                            break
                         case 'r2r_jitstressregs1':
-                            if (configuration == 'Release' || configuration == 'Checked') {
-                                Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} jitstressregs1 R2R Build & Test", "(?i).*test\\W+${os}\\W+${configuration}\\W+${scenario}.*")
-                            }
-                            break
                         case 'r2r_jitstressregs2':
-                            if (configuration == 'Release' || configuration == 'Checked') {
-                                Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} jitstressregs2 R2R Build & Test", "(?i).*test\\W+${os}\\W+${configuration}\\W+${scenario}.*")
-                            }
-                            break
                         case 'r2r_jitstressregs3':
-                            if (configuration == 'Release' || configuration == 'Checked') {
-                                Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} jitstressregs3 R2R Build & Test", "(?i).*test\\W+${os}\\W+${configuration}\\W+${scenario}.*")
-                            }
-                            break
                         case 'r2r_jitstressregs4':
-                            if (configuration == 'Release' || configuration == 'Checked') {
-                                Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} jitstressregs4 R2R Build & Test", "(?i).*test\\W+${os}\\W+${configuration}\\W+${scenario}.*")
-                            }
-                            break
                         case 'r2r_jitstressregs8':
-                            if (configuration == 'Release' || configuration == 'Checked') {
-                                Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} jitstressregs8 R2R Build & Test", "(?i).*test\\W+${os}\\W+${configuration}\\W+${scenario}.*")
-                            }
-                            break
-                        case 'r2r_jitstressregsx10':
-                            if (configuration == 'Release' || configuration == 'Checked') {
-                                Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} jitstressregsx10 R2R Build & Test", "(?i).*test\\W+${os}\\W+${configuration}\\W+${scenario}.*")
-                            }
-                            break
-                        case 'r2r_jitstressregsx80':
-                            if (configuration == 'Release' || configuration == 'Checked') {
-                                Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} jitstressregsx80 R2R Build & Test", "(?i).*test\\W+${os}\\W+${configuration}\\W+${scenario}.*")
-                            }
-                            break
+                        case 'r2r_jitstressregs0x10':
+                        case 'r2r_jitstressregs0x80':
+                        case 'r2r_jitstressregs0x1000':
                         case 'r2r_jitminopts':
-                            if (configuration == 'Release' || configuration == 'Checked') {
-                                Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} JITMinOpts R2R Build & Test", "(?i).*test\\W+${os}\\W+${configuration}\\W+${scenario}.*")
-                            }
-                            break
                         case 'r2r_jitforcerelocs':
                             if (configuration == 'Release' || configuration == 'Checked') {
-                                Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} ForceRelocs R2R Build & Test", "(?i).*test\\W+${os}\\W+${configuration}\\W+${scenario}.*")
+                                def displayStr = getR2RStressModeDisplayName(scenario)
+                                Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} ${displayStr} R2R Build & Test", "(?i).*test\\W+${os}\\W+${configuration}\\W+${scenario}.*")
                             }
                             break
                         default:
@@ -965,58 +873,20 @@ def static addTriggers(def job, def branch, def isPR, def architecture, def os,
                             }
                             break
                         case 'r2r_jitstress1':
-                            if (configuration == 'Release' || configuration == 'Checked') {
-                                Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} jitstress1 R2R Build & Test", "(?i).*test\\W+${os}\\W+${configuration}\\W+${scenario}.*")
-                            }
-                            break
                         case 'r2r_jitstress2':
-                            if (configuration == 'Release' || configuration == 'Checked') {
-                                Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} jitstress2 R2R Build & Test", "(?i).*test\\W+${os}\\W+${configuration}\\W+${scenario}.*")
-                            }
-                            break
                         case 'r2r_jitstressregs1':
-                            if (configuration == 'Release' || configuration == 'Checked') {
-                                Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} jitstressregs1 R2R Build & Test", "(?i).*test\\W+${os}\\W+${configuration}\\W+${scenario}.*")
-                            }
-                            break
                         case 'r2r_jitstressregs2':
-                            if (configuration == 'Release' || configuration == 'Checked') {
-                                Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} jitstressregs2 R2R Build & Test", "(?i).*test\\W+${os}\\W+${configuration}\\W+${scenario}.*")
-                            }
-                            break
                         case 'r2r_jitstressregs3':
-                            if (configuration == 'Release' || configuration == 'Checked') {
-                                Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} jitstressregs3 R2R Build & Test", "(?i).*test\\W+${os}\\W+${configuration}\\W+${scenario}.*")
-                            }
-                            break
                         case 'r2r_jitstressregs4':
-                            if (configuration == 'Release' || configuration == 'Checked') {
-                                Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} jitstressregs4 R2R Build & Test", "(?i).*test\\W+${os}\\W+${configuration}\\W+${scenario}.*")
-                            }
-                            break
                         case 'r2r_jitstressregs8':
-                            if (configuration == 'Release' || configuration == 'Checked') {
-                                Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} jitstressregs8 R2R Build & Test", "(?i).*test\\W+${os}\\W+${configuration}\\W+${scenario}.*")
-                            }
-                            break
-                        case 'r2r_jitstressregsx10':
-                            if (configuration == 'Release' || configuration == 'Checked') {
-                                Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} jitstressregsx10 R2R Build & Test", "(?i).*test\\W+${os}\\W+${configuration}\\W+${scenario}.*")
-                            }
-                            break
-                        case 'r2r_jitstressregsx80':
-                            if (configuration == 'Release' || configuration == 'Checked') {
-                                Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} jitstressregsx80 R2R Build & Test", "(?i).*test\\W+${os}\\W+${configuration}\\W+${scenario}.*")
-                            }
-                            break
+                        case 'r2r_jitstressregs0x10':
+                        case 'r2r_jitstressregs0x80':
+                        case 'r2r_jitstressregs0x1000':
                         case 'r2r_jitminopts':
-                            if (configuration == 'Release' || configuration == 'Checked') {
-                                Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} JITMinOpts R2R Build & Test", "(?i).*test\\W+${os}\\W+${configuration}\\W+${scenario}.*")
-                            }
-                            break
                         case 'r2r_jitforcerelocs':
                             if (configuration == 'Release' || configuration == 'Checked') {
-                                Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} ForceRelocs R2R Build & Test", "(?i).*test\\W+${os}\\W+${configuration}\\W+${scenario}.*")
+                                def displayStr = getR2RStressModeDisplayName(scenario)
+                                Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} ${displayStr} R2R Build & Test", "(?i).*test\\W+${os}\\W+${configuration}\\W+${scenario}.*")
                             }
                             break
                         case 'longgc':
@@ -1035,60 +905,17 @@ def static addTriggers(def job, def branch, def isPR, def architecture, def os,
                             }
                             break
                         case 'minopts':
-                            assert (os == 'Windows_NT') || (os in Constants.crossList)
-                            Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} Build and Test (Jit - MinOpts)",
-                               "(?i).*test\\W+${os}\\W+${scenario}.*")
-                            break
                         case 'forcerelocs':
-                            assert (os == 'Windows_NT') || (os in Constants.crossList)
-                            Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} Build and Test (Jit - ForceRelocs)",
-                               "(?i).*test\\W+${os}\\W+${scenario}.*")
-                            break
                         case 'jitstress1':
-                            assert (os == 'Windows_NT') || (os in Constants.crossList)
-                            Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} Build and Test (Jit - JitStress=1)",
-                               "(?i).*test\\W+${os}\\W+${scenario}.*")
-                            break
                         case 'jitstress2':
-                            assert (os == 'Windows_NT') || (os in Constants.crossList)
-                            Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} Build and Test (Jit - JitStress=2)",
-                               "(?i).*test\\W+${os}\\W+${scenario}.*")
-                            break
                         case 'jitstressregs1':
-                            assert (os == 'Windows_NT') || (os in Constants.crossList)
-                            Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} Build and Test (Jit - JitStressRegs=1)",
-                               "(?i).*test\\W+${os}\\W+${scenario}.*")
-                            break
                         case 'jitstressregs2':
-                            assert (os == 'Windows_NT') || (os in Constants.crossList)
-                            Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} Build and Test (Jit - JitStressRegs=2)",
-                               "(?i).*test\\W+${os}\\W+${scenario}.*")
-                            break
                         case 'jitstressregs3':
-                            assert (os == 'Windows_NT') || (os in Constants.crossList)
-                            Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} Build and Test (Jit - JitStressRegs=3)",
-                               "(?i).*test\\W+${os}\\W+${scenario}.*")
-                            break
                         case 'jitstressregs4':
-                            assert (os == 'Windows_NT') || (os in Constants.crossList)
-                            Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} Build and Test (Jit - JitStressRegs=4)",
-                               "(?i).*test\\W+${os}\\W+${scenario}.*")
-                            break
                         case 'jitstressregs8':
-                            assert (os == 'Windows_NT') || (os in Constants.crossList)
-                            Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} Build and Test (Jit - JitStressRegs=8)",
-                               "(?i).*test\\W+${os}\\W+${scenario}.*")
-                            break
                         case 'jitstressregs0x10':
-                            assert (os == 'Windows_NT') || (os in Constants.crossList)
-                            Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} Build and Test (Jit - JitStressRegs=0x10)",
-                               "(?i).*test\\W+${os}\\W+${scenario}.*")
-                            break
                         case 'jitstressregs0x80':
-                            assert (os == 'Windows_NT') || (os in Constants.crossList)
-                            Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} Build and Test (Jit - JitStressRegs=0x80)",
-                               "(?i).*test\\W+${os}\\W+${scenario}.*")
-                            break
+                        case 'jitstressregs0x1000':
                         case 'jitstress2_jitstressregs1':
                         case 'jitstress2_jitstressregs2':
                         case 'jitstress2_jitstressregs3':
@@ -1096,6 +923,9 @@ def static addTriggers(def job, def branch, def isPR, def architecture, def os,
                         case 'jitstress2_jitstressregs8':
                         case 'jitstress2_jitstressregs0x10':
                         case 'jitstress2_jitstressregs0x80':
+                        case 'jitstress2_jitstressregs0x1000':
+                        case 'tailcallstress':
+                        case 'jitsse2only':
                         case 'gcstress0x3':
                         case 'gcstress0xc':
                         case 'zapdisable':
@@ -1122,6 +952,7 @@ def static addTriggers(def job, def branch, def isPR, def architecture, def os,
                         case 'corefx_jitstressregs8':
                         case 'corefx_jitstressregs0x10':
                         case 'corefx_jitstressregs0x80':
+                        case 'corefx_jitstressregs0x1000':
                             def displayName = ('CoreFx ' + getStressModeDisplayName(scenario)).trim()
                             assert (os == 'Windows_NT') || (os in Constants.crossList)
                             Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} Build and Test (Jit - ${displayName})",
@@ -1282,68 +1113,20 @@ def static addTriggers(def job, def branch, def isPR, def architecture, def os,
                     }
                     break
                 case 'r2r_jitstress1':
-                    if (configuration == 'Release' || configuration == 'Checked') {
-                        Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} jitstress1 R2R Build & Test",
-                            "(?i).*test\\W+${os}\\W+${architecture}\\W+${configuration}\\W+${scenario}.*")
-                    }
-                    break
                 case 'r2r_jitstress2':
-                    if (configuration == 'Release' || configuration == 'Checked') {
-                        Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} jitstress2 R2R Build & Test",
-                            "(?i).*test\\W+${os}\\W+${architecture}\\W+${configuration}\\W+${scenario}.*")
-                    }
-                    break
                 case 'r2r_jitstressregs1':
-                    if (configuration == 'Release' || configuration == 'Checked') {
-                        Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} jitstressregs1 R2R Build & Test",
-                            "(?i).*test\\W+${os}\\W+${architecture}\\W+${configuration}\\W+${scenario}.*")
-                    }
-                    break
                 case 'r2r_jitstressregs2':
-                    if (configuration == 'Release' || configuration == 'Checked') {
-                        Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} jitstressregs2 R2R Build & Test",
-                            "(?i).*test\\W+${os}\\W+${architecture}\\W+${configuration}\\W+${scenario}.*")
-                    }
-                    break
                 case 'r2r_jitstressregs3':
-                    if (configuration == 'Release' || configuration == 'Checked') {
-                        Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} jitstressregs3 R2R Build & Test",
-                            "(?i).*test\\W+${os}\\W+${architecture}\\W+${configuration}\\W+${scenario}.*")
-                    }
-                    break
                 case 'r2r_jitstressregs4':
-                    if (configuration == 'Release' || configuration == 'Checked') {
-                        Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} jitstressregs4 R2R Build & Test",
-                            "(?i).*test\\W+${os}\\W+${architecture}\\W+${configuration}\\W+${scenario}.*")
-                    }
-                    break
                 case 'r2r_jitstressregs8':
-                    if (configuration == 'Release' || configuration == 'Checked') {
-                        Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} jitstressregs8 R2R Build & Test",
-                            "(?i).*test\\W+${os}\\W+${architecture}\\W+${configuration}\\W+${scenario}.*")
-                    }
-                    break
-                case 'r2r_jitstressregsx10':
-                    if (configuration == 'Release' || configuration == 'Checked') {
-                        Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} jitstressregsx10 R2R Build & Test",
-                            "(?i).*test\\W+${os}\\W+${architecture}\\W+${configuration}\\W+${scenario}.*")
-                    }
-                    break
-                case 'r2r_jitstressregsx80':
-                    if (configuration == 'Release' || configuration == 'Checked') {
-                        Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} jitstressregsx80 R2R Build & Test",
-                            "(?i).*test\\W+${os}\\W+${architecture}\\W+${configuration}\\W+${scenario}.*")
-                    }
-                    break
+                case 'r2r_jitstressregs0x10':
+                case 'r2r_jitstressregs0x80':
+                case 'r2r_jitstressregs0x1000':
                 case 'r2r_jitminopts':
-                    if (configuration == 'Release' || configuration == 'Checked') {
-                        Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} JITMinOpts R2R Build & Test",
-                            "(?i).*test\\W+${os}\\W+${architecture}\\W+${configuration}\\W+${scenario}.*")
-                    }
-                    break
                 case 'r2r_jitforcerelocs':
                     if (configuration == 'Release' || configuration == 'Checked') {
-                        Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} ForceRelocs R2R Build & Test",
+                        def displayStr = getR2RStressModeDisplayName(scenario)
+                        Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} ${displayStr} R2R Build & Test",
                             "(?i).*test\\W+${os}\\W+${architecture}\\W+${configuration}\\W+${scenario}.*")
                     }
                     break
@@ -1366,49 +1149,17 @@ def static addTriggers(def job, def branch, def isPR, def architecture, def os,
                     }
                     break
                 case 'minopts':
-                    Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} Build and Test (Jit - MinOpts)",
-                       "(?i).*test\\W+${os}\\W+${architecture}\\W+${configuration}\\W+${scenario}.*")
-                    break
                 case 'forcerelocs':
-                    Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} Build and Test (Jit - ForceRelocs)",
-                       "(?i).*test\\W+${os}\\W+${architecture}\\W+${configuration}\\W+${scenario}.*")
-                    break
                 case 'jitstress1':
-                    Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} Build and Test (Jit - JitStress=1)",
-                       "(?i).*test\\W+${os}\\W+${architecture}\\W+${configuration}\\W+${scenario}.*")
-                    break
                 case 'jitstress2':
-                    Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} Build and Test (Jit - JitStress=2)",
-                       "(?i).*test\\W+${os}\\W+${architecture}\\W+${configuration}\\W+${scenario}.*")
-                    break
                 case 'jitstressregs1':
-                    Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} Build and Test (Jit - JitStressRegs=1)",
-                       "(?i).*test\\W+${os}\\W+${architecture}\\W+${configuration}\\W+${scenario}.*")
-                    break
                 case 'jitstressregs2':
-                    Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} Build and Test (Jit - JitStressRegs=2)",
-                       "(?i).*test\\W+${os}\\W+${architecture}\\W+${configuration}\\W+${scenario}.*")
-                    break
                 case 'jitstressregs3':
-                    Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} Build and Test (Jit - JitStressRegs=3)",
-                       "(?i).*test\\W+${os}\\W+${architecture}\\W+${configuration}\\W+${scenario}.*")
-                    break
                 case 'jitstressregs4':
-                    Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} Build and Test (Jit - JitStressRegs=4)",
-                       "(?i).*test\\W+${os}\\W+${architecture}\\W+${configuration}\\W+${scenario}.*")
-                    break
                 case 'jitstressregs8':
-                    Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} Build and Test (Jit - JitStressRegs=8)",
-                       "(?i).*test\\W+${os}\\W+${architecture}\\W+${configuration}\\W+${scenario}.*")
-                    break
                 case 'jitstressregs0x10':
-                    Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} Build and Test (Jit - JitStressRegs=0x10)",
-                       "(?i).*test\\W+${os}\\W+${architecture}\\W+${configuration}\\W+${scenario}.*")
-                    break
                 case 'jitstressregs0x80':
-                    Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} Build and Test (Jit - JitStressRegs=0x80)",
-                       "(?i).*test\\W+${os}\\W+${architecture}\\W+${configuration}\\W+${scenario}.*")
-                    break
+                case 'jitstressregs0x1000':
                 case 'jitstress2_jitstressregs1':
                 case 'jitstress2_jitstressregs2':
                 case 'jitstress2_jitstressregs3':
@@ -1416,6 +1167,9 @@ def static addTriggers(def job, def branch, def isPR, def architecture, def os,
                 case 'jitstress2_jitstressregs8':
                 case 'jitstress2_jitstressregs0x10':
                 case 'jitstress2_jitstressregs0x80':
+                case 'jitstress2_jitstressregs0x1000':
+                case 'tailcallstress':
+                case 'jitsse2only':
                 case 'gcstress0x3':
                 case 'gcstress0xc':
                 case 'zapdisable':
@@ -1441,6 +1195,7 @@ def static addTriggers(def job, def branch, def isPR, def architecture, def os,
                 case 'corefx_jitstressregs8':
                 case 'corefx_jitstressregs0x10':
                 case 'corefx_jitstressregs0x80':
+                case 'corefx_jitstressregs0x1000':
                     def displayName = ('CoreFx ' + getStressModeDisplayName(scenario)).trim()
                     assert (os == 'Windows_NT') || (os in Constants.crossList)
                     Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${architecture} ${configuration} Build and Test (Jit - ${displayName})",
@@ -1495,68 +1250,20 @@ def static addTriggers(def job, def branch, def isPR, def architecture, def os,
                     }
                     break
                 case 'r2r_jitstress1':
-                    if (configuration == 'Release' || configuration == 'Checked') {
-                        Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${arch} ${jit} ${configuration} jitstress1 R2R Build & Test",
-                            "(?i).*test\\W+${os}\\W+${arch}\\W+${jit}\\W+${configuration}\\W+${scenario}.*")
-                    }
-                    break
                 case 'r2r_jitstress2':
-                    if (configuration == 'Release' || configuration == 'Checked') {
-                        Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${arch} ${jit} ${configuration} jitstress2 R2R Build & Test",
-                            "(?i).*test\\W+${os}\\W+${arch}\\W+${jit}\\W+${configuration}\\W+${scenario}.*")
-                    }
-                    break
                 case 'r2r_jitstressregs1':
-                    if (configuration == 'Release' || configuration == 'Checked') {
-                        Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${arch} ${jit} ${configuration} jitstressregs1 R2R Build & Test",
-                            "(?i).*test\\W+${os}\\W+${arch}\\W+${jit}\\W+${configuration}\\W+${scenario}.*")
-                    }
-                    break
                 case 'r2r_jitstressregs2':
-                    if (configuration == 'Release' || configuration == 'Checked') {
-                        Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${arch} ${jit} ${configuration} jitstressregs2 R2R Build & Test",
-                            "(?i).*test\\W+${os}\\W+${arch}\\W+${jit}\\W+${configuration}\\W+${scenario}.*")
-                    }
-                    break
                 case 'r2r_jitstressregs3':
-                    if (configuration == 'Release' || configuration == 'Checked') {
-                        Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${arch} ${jit} ${configuration} jitstressregs3 R2R Build & Test",
-                            "(?i).*test\\W+${os}\\W+${arch}\\W+${jit}\\W+${configuration}\\W+${scenario}.*")
-                    }
-                    break
                 case 'r2r_jitstressregs4':
-                    if (configuration == 'Release' || configuration == 'Checked') {
-                        Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${arch} ${jit} ${configuration} jitstressregs4 R2R Build & Test",
-                            "(?i).*test\\W+${os}\\W+${arch}\\W+${jit}\\W+${configuration}\\W+${scenario}.*")
-                    }
-                    break
                 case 'r2r_jitstressregs8':
-                    if (configuration == 'Release' || configuration == 'Checked') {
-                        Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${arch} ${jit} ${configuration} jitstressregs8 R2R Build & Test",
-                            "(?i).*test\\W+${os}\\W+${arch}\\W+${jit}\\W+${configuration}\\W+${scenario}.*")
-                    }
-                    break
-                case 'r2r_jitstressregsx10':
-                    if (configuration == 'Release' || configuration == 'Checked') {
-                        Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${arch} ${jit} ${configuration} jitstressregsx10 R2R Build & Test",
-                            "(?i).*test\\W+${os}\\W+${arch}\\W+${jit}\\W+${configuration}\\W+${scenario}.*")
-                    }
-                    break
-                case 'r2r_jitstressregsx80':
-                    if (configuration == 'Release' || configuration == 'Checked') {
-                        Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${arch} ${jit} ${configuration} jitstressregsx80 R2R Build & Test",
-                            "(?i).*test\\W+${os}\\W+${arch}\\W+${jit}\\W+${configuration}\\W+${scenario}.*")
-                    }
-                    break
+                case 'r2r_jitstressregs0x10':
+                case 'r2r_jitstressregs0x80':
+                case 'r2r_jitstressregs0x1000':
                 case 'r2r_jitminopts':
-                    if (configuration == 'Release' || configuration == 'Checked') {
-                        Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${arch} ${jit} ${configuration} JITMinOpts R2R Build & Test",
-                            "(?i).*test\\W+${os}\\W+${arch}\\W+${jit}\\W+${configuration}\\W+${scenario}.*")
-                    }
-                    break
                 case 'r2r_jitforcerelocs':
                     if (configuration == 'Release' || configuration == 'Checked') {
-                        Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${arch} ${jit} ${configuration} ForceRelocs R2R Build & Test",
+                        def displayStr = getR2RStressModeDisplayName(scenario)
+                        Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${arch} ${jit} ${configuration} ${displayStr} R2R Build & Test",
                             "(?i).*test\\W+${os}\\W+${arch}\\W+${jit}\\W+${configuration}\\W+${scenario}.*")
                     }
                     break
@@ -1578,49 +1285,17 @@ def static addTriggers(def job, def branch, def isPR, def architecture, def os,
                     }
                     break
                 case 'minopts':
-                    Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${arch} ${jit} ${configuration} Build and Test (Jit - MinOpts)",
-                       "(?i).*test\\W+${os}\\W+${arch}\\W+${jit}\\W+${configuration}\\W+${scenario}.*")
-                    break
                 case 'forcerelocs':
-                    Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${arch} ${jit} ${configuration} Build and Test (Jit - ForceRelocs)",
-                       "(?i).*test\\W+${os}\\W+${arch}\\W+${jit}\\W+${configuration}\\W+${scenario}.*")
-                    break
                 case 'jitstress1':
-                    Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${arch} ${jit} ${configuration} Build and Test (Jit - JitStress=1)",
-                       "(?i).*test\\W+${os}\\W+${arch}\\W+${jit}\\W+${configuration}\\W+${scenario}.*")
-                    break
                 case 'jitstress2':
-                    Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${arch} ${jit} ${configuration} Build and Test (Jit - JitStress=2)",
-                       "(?i).*test\\W+${os}\\W+${arch}\\W+${jit}\\W+${configuration}\\W+${scenario}.*")
-                    break
                 case 'jitstressregs1':
-                    Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${arch} ${jit} ${configuration} Build and Test (Jit - JitStressRegs=1)",
-                       "(?i).*test\\W+${os}\\W+${arch}\\W+${jit}\\W+${configuration}\\W+${scenario}.*")
-                    break
                 case 'jitstressregs2':
-                    Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${arch} ${jit} ${configuration} Build and Test (Jit - JitStressRegs=2)",
-                       "(?i).*test\\W+${os}\\W+${arch}\\W+${jit}\\W+${configuration}\\W+${scenario}.*")
-                    break
                 case 'jitstressregs3':
-                    Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${arch} ${jit} ${configuration} Build and Test (Jit - JitStressRegs=3)",
-                       "(?i).*test\\W+${os}\\W+${arch}\\W+${jit}\\W+${configuration}\\W+${scenario}.*")
-                    break
                 case 'jitstressregs4':
-                    Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${arch} ${jit} ${configuration} Build and Test (Jit - JitStressRegs=4)",
-                       "(?i).*test\\W+${os}\\W+${arch}\\W+${jit}\\W+${configuration}\\W+${scenario}.*")
-                    break
                 case 'jitstressregs8':
-                    Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${arch} ${jit} ${configuration} Build and Test (Jit - JitStressRegs=8)",
-                       "(?i).*test\\W+${os}\\W+${arch}\\W+${jit}\\W+${configuration}\\W+${scenario}.*")
-                    break
                 case 'jitstressregs0x10':
-                    Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${arch} ${jit} ${configuration} Build and Test (Jit - JitStressRegs=0x10)",
-                       "(?i).*test\\W+${os}\\W+${arch}\\W+${jit}\\W+${configuration}\\W+${scenario}.*")
-                    break
                 case 'jitstressregs0x80':
-                    Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${arch} ${jit} ${configuration} Build and Test (Jit - JitStressRegs=0x80)",
-                       "(?i).*test\\W+${os}\\W+${arch}\\W+${jit}\\W+${configuration}\\W+${scenario}.*")
-                    break
+                case 'jitstressregs0x1000':
                 case 'jitstress2_jitstressregs1':
                 case 'jitstress2_jitstressregs2':
                 case 'jitstress2_jitstressregs3':
@@ -1628,6 +1303,9 @@ def static addTriggers(def job, def branch, def isPR, def architecture, def os,
                 case 'jitstress2_jitstressregs8':
                 case 'jitstress2_jitstressregs0x10':
                 case 'jitstress2_jitstressregs0x80':
+                case 'jitstress2_jitstressregs0x1000':
+                case 'tailcallstress':
+                case 'jitsse2only':
                 case 'gcstress0x3':
                 case 'gcstress0xc':
                 case 'zapdisable':
@@ -1653,6 +1331,7 @@ def static addTriggers(def job, def branch, def isPR, def architecture, def os,
                 case 'corefx_jitstressregs8':
                 case 'corefx_jitstressregs0x10':
                 case 'corefx_jitstressregs0x80':
+                case 'corefx_jitstressregs0x1000':
                     def displayName = ('CoreFx ' + getStressModeDisplayName(scenario)).trim()
                     assert (os == 'Windows_NT')
                     Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${arch} ${jit} ${configuration} Build and Test (Jit - ${displayName})",
@@ -1703,68 +1382,20 @@ def static addTriggers(def job, def branch, def isPR, def architecture, def os,
                     }
                     break
                 case 'r2r_jitstress1':
-                    if (configuration == 'Release' || configuration == 'Checked') {
-                        Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${arch} ${jit} ${configuration} jitstress1 R2R Build & Test",
-                            "(?i).*test\\W+${os}\\W+${arch}\\W+${jit}\\W+${configuration}\\W+${scenario}.*")
-                    }
-                    break
                 case 'r2r_jitstress2':
-                    if (configuration == 'Release' || configuration == 'Checked') {
-                        Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${arch} ${jit} ${configuration} jitstress2 R2R Build & Test",
-                            "(?i).*test\\W+${os}\\W+${arch}\\W+${jit}\\W+${configuration}\\W+${scenario}.*")
-                    }
-                    break
                 case 'r2r_jitstressregs1':
-                    if (configuration == 'Release' || configuration == 'Checked') {
-                        Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${arch} ${jit} ${configuration} jitstressregs1 R2R Build & Test",
-                            "(?i).*test\\W+${os}\\W+${arch}\\W+${jit}\\W+${configuration}\\W+${scenario}.*")
-                    }
-                    break
                 case 'r2r_jitstressregs2':
-                    if (configuration == 'Release' || configuration == 'Checked') {
-                        Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${arch} ${jit} ${configuration} jitstressregs2 R2R Build & Test",
-                            "(?i).*test\\W+${os}\\W+${arch}\\W+${jit}\\W+${configuration}\\W+${scenario}.*")
-                    }
-                    break
                 case 'r2r_jitstressregs3':
-                    if (configuration == 'Release' || configuration == 'Checked') {
-                        Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${arch} ${jit} ${configuration} jitstressregs3 R2R Build & Test",
-                            "(?i).*test\\W+${os}\\W+${arch}\\W+${jit}\\W+${configuration}\\W+${scenario}.*")
-                    }
-                    break
                 case 'r2r_jitstressregs4':
-                    if (configuration == 'Release' || configuration == 'Checked') {
-                        Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${arch} ${jit} ${configuration} jitstressregs4 R2R Build & Test",
-                            "(?i).*test\\W+${os}\\W+${arch}\\W+${jit}\\W+${configuration}\\W+${scenario}.*")
-                    }
-                    break
                 case 'r2r_jitstressregs8':
-                    if (configuration == 'Release' || configuration == 'Checked') {
-                        Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${arch} ${jit} ${configuration} jitstressregs8 R2R Build & Test",
-                            "(?i).*test\\W+${os}\\W+${arch}\\W+${jit}\\W+${configuration}\\W+${scenario}.*")
-                    }
-                    break
-                case 'r2r_jitstressregsx10':
-                    if (configuration == 'Release' || configuration == 'Checked') {
-                        Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${arch} ${jit} ${configuration} jitstressregsx10 R2R Build & Test",
-                            "(?i).*test\\W+${os}\\W+${arch}\\W+${jit}\\W+${configuration}\\W+${scenario}.*")
-                    }
-                    break
-                case 'r2r_jitstressregsx80':
-                    if (configuration == 'Release' || configuration == 'Checked') {
-                        Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${arch} ${jit} ${configuration} jitstressregsx80 R2R Build & Test",
-                            "(?i).*test\\W+${os}\\W+${arch}\\W+${jit}\\W+${configuration}\\W+${scenario}.*")
-                    }
-                    break
+                case 'r2r_jitstressregs0x10':
+                case 'r2r_jitstressregs0x80':
+                case 'r2r_jitstressregs0x1000':
                 case 'r2r_jitminopts':
-                    if (configuration == 'Release' || configuration == 'Checked') {
-                        Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${arch} ${jit} ${configuration} jitminopts R2R Build & Test",
-                            "(?i).*test\\W+${os}\\W+${arch}\\W+${jit}\\W+${configuration}\\W+${scenario}.*")
-                    }
-                    break
                 case 'r2r_jitforcerelocs':
                     if (configuration == 'Release' || configuration == 'Checked') {
-                        Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${arch} ${jit} ${configuration} jitforcerelocs R2R Build & Test",
+                        def displayStr = getR2RStressModeDisplayName(scenario)
+                        Utilities.addGithubPRTriggerForBranch(job, branch, "${os} ${arch} ${jit} ${configuration} ${displayStr} R2R Build & Test",
                             "(?i).*test\\W+${os}\\W+${arch}\\W+${jit}\\W+${configuration}\\W+${scenario}.*")
                     }
                     break
@@ -1909,11 +1540,14 @@ def static calculateBuildCommands(def newJob, def scenario, def branch, def isPR
                                 else if (scenario == 'r2r_jitstressregs8') {
                                     runjitstressregsStr = 'jitstressregs 8'
                                 }
-                                else if (scenario == 'r2r_jitstressregsx10') {
-                                    runjitstressregsStr = 'jitstressregs x10'
+                                else if (scenario == 'r2r_jitstressregs0x10') {
+                                    runjitstressregsStr = 'jitstressregs 0x10'
                                 }
-                                else if (scenario == 'r2r_jitstressregsx80') {
-                                    runjitstressregsStr = 'jitstressregs x80'
+                                else if (scenario == 'r2r_jitstressregs0x80') {
+                                    runjitstressregsStr = 'jitstressregs 0x80'
+                                }
+                                else if (scenario == 'r2r_jitstressregs0x1000') {
+                                    runjitstressregsStr = 'jitstressregs 0x1000'
                                 }
                                 else if (scenario == 'r2r_jitminopts') {
                                     runjitmioptsStr = 'jitminopts'
@@ -2388,8 +2022,9 @@ combinedScenarios.each { scenario ->
                             case 'r2r_jitstressregs3':
                             case 'r2r_jitstressregs4':
                             case 'r2r_jitstressregs8':
-                            case 'r2r_jitstressregsx10':
-                            case 'r2r_jitstressregsx80':
+                            case 'r2r_jitstressregs0x10':
+                            case 'r2r_jitstressregs0x80':
+                            case 'r2r_jitstressregs0x1000':
                             case 'r2r_jitminopts':
                             case 'r2r_jitforcerelocs':
                                 // The above builds are not necessary except for Windows_NT.  Non-Windows NT uses
@@ -2615,8 +2250,9 @@ combinedScenarios.each { scenario ->
                             case 'r2r_jitstressregs3':
                             case 'r2r_jitstressregs4':
                             case 'r2r_jitstressregs8':
-                            case 'r2r_jitstressregsx10':
-                            case 'r2r_jitstressregsx80':
+                            case 'r2r_jitstressregs0x10':
+                            case 'r2r_jitstressregs0x80':
+                            case 'r2r_jitstressregs0x1000':
                             case 'r2r_jitminopts':
                             case 'r2r_jitforcerelocs':
                                 //Skip configs that aren't Checked or Release (so just Debug, for now)
@@ -2743,11 +2379,14 @@ combinedScenarios.each { scenario ->
                             else if (scenario == 'r2r_jitstressregs8') {
                                 runjitstressregsStr = '--jitstressregs=8'
                             }
-                            else if (scenario == 'r2r_jitstressregsx10') {
-                                runjitstressregsStr = '--jitstressregs=x10'
+                            else if (scenario == 'r2r_jitstressregs0x10') {
+                                runjitstressregsStr = '--jitstressregs=0x10'
+                            }
+                            else if (scenario == 'r2r_jitstressregs0x80') {
+                                runjitstressregsStr = '--jitstressregs=0x80'
                             }
-                            else if (scenario == 'r2r_jitstressregsx80') {
-                                runjitstressregsStr = '--jitstressregs=x80'
+                            else if (scenario == 'r2r_jitstressregs0x1000') {
+                                runjitstressregsStr = '--jitstressregs=0x1000'
                             }
                             else if (scenario == 'r2r_jitminopts') {
                                 runjitmioptsStr = '--jitminopts'