At least two platforms are affected:

=== aarch64:

/pool/buildbot/slaves/sobornost/jdkX-hs/build/src/hotspot/cpu/aarch64/c1_Runtime1_aarch64.cpp: In static member function 'static OopMapSet* Runtime1::generate_code_for(Runtime1::StubID, StubAssembler*)':
/pool/buildbot/slaves/sobornost/jdkX-hs/build/src/hotspot/cpu/aarch64/c1_Runtime1_aarch64.cpp:824:35: error: 'thread' was not declared in this scope
           __ incr_allocated_bytes(thread, arr_size, 0, rscratch1);
                                   ^~~~~~
=== x86_32:

/pool/buildbot/slaves/sobornost/jdkX-hs/build/src/hotspot/cpu/x86/c1_Runtime1_x86.cpp: In static member function 'static OopMapSet* Runtime1::generate_code_for(Runtime1::StubID, StubAssembler*)':
/pool/buildbot/slaves/sobornost/jdkX-hs/build/src/hotspot/cpu/x86/c1_Runtime1_x86.cpp:1034:31: error: 'thread_reg' was not declared in this scope
           NOT_LP64(get_thread(thread_reg));
                               ^
/pool/buildbot/slaves/sobornost/jdkX-hs/build/src/hotspot/cpu/x86/c1_Runtime1_x86.cpp:1034:41: error: 'get_thread' was not declared in this scope
           NOT_LP64(get_thread(thread_reg));
                                         ^
/pool/buildbot/slaves/sobornost/jdkX-hs/build/src/hotspot/cpu/x86/c1_Runtime1_x86.cpp:1143:31: error: 'thread_reg' was not declared in this scope
           NOT_LP64(get_thread(thread_reg));
                               ^
/pool/buildbot/slaves/sobornost/jdkX-hs/build/src/hotspot/cpu/x86/c1_Runtime1_x86.cpp:1143:41: error: 'get_thread' was not declared in this scope
           NOT_LP64(get_thread(thread_reg));
                                         ^