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  1. JDK
  2. JDK-8210425

[x86] sharedRuntimeTrig/sharedRuntimeTrans compiled without optimization

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    • Subcomponent:
    • Resolved In Build:
      b12
    • CPU:
      x86, x86_64
    • OS:
      linux

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        From make/hotspot/lib/JvmOverrideFiles.gmk around line 43 we see:

           ifeq ($(OPENJDK_TARGET_CPU_ARCH), x86)
            BUILD_LIBJVM_sharedRuntimeTrig.cpp_CXXFLAGS := -DNO_PCH $(CXX_O_FLAG_NONE)
            BUILD_LIBJVM_sharedRuntimeTrans.cpp_CXXFLAGS := -DNO_PCH $(CXX_O_FLAG_NONE)

        That is, those files get compiled without optimization. Looking at the code the reason seems to be that it was originally copied from fdlibm's code from core-libs. However, JDK-8170153 and more importantly JDK-8210416 will change that so that -O3 with -ffp-contract=off should work for linux.

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                • Assignee:
                  sgehwolf Severin Gehwolf
                  Reporter:
                  sgehwolf Severin Gehwolf
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                  • Created:
                    Updated:
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