>From the error log we can see the root cause is that, develop_pd flag 'pd_CICompileOSR' is undeclared in zero build.
Where this flag is used? Flag 'pd_CICompileOSR' is assigned to flag 'CICompileOSR'. See line 77 of 'compiler_globals.hpp' and further line 86 of 'globals_shared.hpp'. Where this flag can be declared? Header files 'c1_globals.hpp' or 'c2_globals.hpp' would be included if VM is built with compiler1 or compiler2. See lines 30 to 38 of 'complier_globals.hpp'. And further, flag 'pd_CICompileOSR' may get declared in the header files for specific arch, e.g., 'c1_globals_aarch64.hpp', 'c2_globals_aarch64.hpp'. However, regarding zero build (without compiler1 and compiler2 and jvmci) , this flag is undelcared. Hence, this patch gets header file 'compiler/compiler_globals_pd.hpp' included where this flag is declared for the case when neither COMPILER1 nor COMPILER2 are defined and INCLUDE_JVMCI is inactive. Note that 'compiler/compiler_globals_pd.hpp' already includes 'runtime/globals_shared.hpp'. Note that zero build with PCH succeeds because 'runtime/globals.hpp' is included in 'precompiled.hpp', and further 'compiler_globals_pd.hpp' is included in 'runtime/globals.hpp'. ------------- Commit messages: - 8258857: Zero: non-PCH build fails after JDK-8258074 Changes: https://git.openjdk.java.net/jdk/pull/1894/files Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=1894&range=00 Issue: https://bugs.openjdk.java.net/browse/JDK-8258857 Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod Patch: https://git.openjdk.java.net/jdk/pull/1894.diff Fetch: git fetch https://git.openjdk.java.net/jdk pull/1894/head:pull/1894 PR: https://git.openjdk.java.net/jdk/pull/1894