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On Mon, Jun 4, 2012 at 3:19 PM, Nikos Chantziaras <realnc@×××××.com> wrote: |
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> I've emerged system and world with gcc-4.7.0 and LTO. I'm posting from it |
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> right now :-) It's a KDE system with 1043 packages installed. |
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> |
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> I've posted details on how to do this (including info on how to disable LTO |
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> for specific packages that don't work with it) here: |
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> |
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> http://realnc.blogspot.com/2012/06/building-gentoo-linux-with-gcc-47-and.html |
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Thanks. I'm not sure if I'm ready to recompile world yet, but we'll |
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see where curiosity and boredom lead me. :) I have an older, slower |
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machine that might benefit more from small optimizations. A few |
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questions: |
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Do you have any measure of compile times using lto compared to not using it? |
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Was there any effect on quality of debugging info in the resulting |
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binaries? I thought I read at some point there was no (or bad) debug |
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info with LTO. Maybe I'm thinking about clang, though. |
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Did you use gold or the standard linker? |
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