| Index: src/flag-definitions.h
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| diff --git a/src/flag-definitions.h b/src/flag-definitions.h
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| index 63dfeecd4b674e8c23458d15d357b1a7fa687ba3..4e85c84096d599d0eebb67597cee3683041c9180 100644
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| --- a/src/flag-definitions.h
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| +++ b/src/flag-definitions.h
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| @@ -441,7 +441,7 @@ DEFINE_BOOL(omit_map_checks_for_leaf_maps, true,
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|              "deoptimize the optimized code if the layout of the maps changes.")
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|  
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|  // Flags for TurboFan.
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| -DEFINE_BOOL(turbo, false, "enable TurboFan compiler")
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| +DEFINE_BOOL(turbo, true, "enable TurboFan compiler")
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|  DEFINE_BOOL(turbo_sp_frame_access, false,
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|              "use stack pointer-relative access to frame wherever possible")
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|  DEFINE_BOOL(turbo_preprocess_ranges, true,
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| 
 |