Merging in JDK-8308869 results in:

One or more @IR rules failed:

Failed IR Rules (1) of Methods (1)
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1) Method "public static void compiler.c2.irTests.ProfileAtTypeCheck.test15(java.lang.Object)" - [Failed IR rules: 1]:
   * @IR rule 2: "@compiler.lib.ir_framework.IR(applyIfCPUFeatureAnd={}, phase={MACRO_EXPANSION}, applyIf={}, applyIfCPUFeatureOr={}, applyIfCPUFeature={}, counts={"_#CMP_P#_", "5", "_#LOAD_KLASS_OR_NKLASS#_", "2", "_#PARTIAL_SUBTYPE_CHECK#_", "1"}, failOn={}, applyIfAnd={}, applyIfOr={}, applyIfNot={})"
     > Phase "Macro expand":
       - counts: Graph contains wrong number of nodes:
         * Constraint 1: "(\\d+(\\s){2}(CmpP.*)+(\\s){2}===.*)"
           - Failed comparison: [found] 3 = 5 [given]
             - Matched nodes (3):
               * 39 CmpP === _ 10 38 [[ 40 ]] !jvms: ProfileAtTypeCheck::test15 @ bci:5 (line 399)
               * 120 CmpP === _ 119 38 [[ 121 ]]
               * 126 CmpP === _ 100 35 [[ 128 ]] !orig=[103]

Problem listed