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Merge branch 'trunk' into gui-example

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Richard Feldman 2022-02-25 08:22:36 -05:00 • committed by GitHub
commit a49b66e379
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10 changed files with 142 additions and 46 deletions
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52
compiler/gen_llvm/src/llvm/build.rs
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@ -657,35 +657,43 @@ pub fn construct_optimization_passes<'a>(
OptLevel::Development | OptLevel::Normal => {
pmb.set_optimization_level(OptimizationLevel::None);
}
OptLevel::Size => {
pmb.set_optimization_level(OptimizationLevel::Default);
// TODO: For some usecase, like embedded, it is useful to expose this and tune it.
pmb.set_inliner_with_threshold(50);
}
OptLevel::Optimize => {
pmb.set_optimization_level(OptimizationLevel::Aggressive);
// this threshold seems to do what we want
pmb.set_inliner_with_threshold(275);
// TODO figure out which of these actually help
// function passes
fpm.add_cfg_simplification_pass();
mpm.add_cfg_simplification_pass();
fpm.add_jump_threading_pass();
mpm.add_jump_threading_pass();
fpm.add_memcpy_optimize_pass(); // this one is very important
fpm.add_licm_pass();
// turn invoke into call
mpm.add_prune_eh_pass();
// remove unused global values (often the `_wrapper` can be removed)
mpm.add_global_dce_pass();
mpm.add_function_inlining_pass();
}
}
// Add optimization passes for Size and Optimize.
if matches!(opt_level, OptLevel::Size | OptLevel::Optimize) {
// TODO figure out which of these actually help
// function passes
fpm.add_cfg_simplification_pass();
mpm.add_cfg_simplification_pass();
fpm.add_jump_threading_pass();
mpm.add_jump_threading_pass();
fpm.add_memcpy_optimize_pass(); // this one is very important
fpm.add_licm_pass();
// turn invoke into call
mpm.add_prune_eh_pass();
// remove unused global values (often the `_wrapper` can be removed)
mpm.add_global_dce_pass();
mpm.add_function_inlining_pass();
}
pmb.populate_module_pass_manager(&mpm);
pmb.populate_function_pass_manager(&fpm);