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.../mailman/listinfo/llvm-dev -- Hal Finkel Lead, Compiler Technology and Programming Languages Leadership Computing Facility Argonne National Laboratory -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20180425/0afd4f8c/attachment.html>

For the firstprivate clause, the compiler generates code to pass it by value or by reference to the outlined function. The reason the first private scalars is generally passed by value is for the performance reason. For this particular case, the compiler cannot generate code to pass the double @gg by value under i386-pc-linux-gnu since the value is 64 bit while the architecture is 32bit. For the