Nim define for disabling LTO (#1751)
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README.md
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README.md
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@ -465,6 +465,18 @@ make -j$(nproc) NIMFLAGS="-d:release" USE_MULTITAIL=yes eth2_network_simulation
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make USE_LIBBACKTRACE=0 # expect the resulting binaries to be 2-3 times slower
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make USE_LIBBACKTRACE=0 # expect the resulting binaries to be 2-3 times slower
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```
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```
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- disable `-march=native` because you want to run the binary on a different machine than the one you're building it on:
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```bash
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make NIMFLAGS="-d:disableMarchNative" beacon_node
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```
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- disable link-time optimisation (LTO):
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```bash
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make NIMFLAGS="-d:disableLTO" beacon_node
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```
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- publish a book using [mdBook](https://github.com/rust-lang/mdBook) from sources in "docs/" to GitHub pages:
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- publish a book using [mdBook](https://github.com/rust-lang/mdBook) from sources in "docs/" to GitHub pages:
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```bash
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```bash
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@ -14,7 +14,7 @@ else:
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# `-flto` gives a significant improvement in processing speed, specially hash tree and state transition (basically any CPU-bound code implemented in nim)
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# `-flto` gives a significant improvement in processing speed, specially hash tree and state transition (basically any CPU-bound code implemented in nim)
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# With LTO enabled, optimization flags should be passed to both compiler and linker!
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# With LTO enabled, optimization flags should be passed to both compiler and linker!
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if defined(release):
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if defined(release) and not defined(disableLTO):
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if defined(macosx): # Clang
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if defined(macosx): # Clang
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switch("passC", "-flto=thin")
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switch("passC", "-flto=thin")
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switch("passL", "-flto=thin")
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switch("passL", "-flto=thin")
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