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Add explicit OptLevel to add_passes

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This commit is contained in:
Richard Feldman 2020-04-16 20:26:08 -04:00
parent b19386c1f6
commit ea713023e8
2 changed files with 48 additions and 24 deletions
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15
compiler/gen/src/llvm/build.rs
View file

@ -31,6 +31,11 @@ const PRINT_FN_VERIFICATION_OUTPUT: bool = false;
// TODO: experiment with different internal calling conventions, e.g. "fast" // TODO: experiment with different internal calling conventions, e.g. "fast"
const DEFAULT_CALLING_CONVENTION: u32 = 0; const DEFAULT_CALLING_CONVENTION: u32 = 0;
pub enum OptLevel {
Normal,
Optimize,
}
type Scope<'a, 'ctx> = ImMap<Symbol, (Layout<'a>, PointerValue<'ctx>)>; type Scope<'a, 'ctx> = ImMap<Symbol, (Layout<'a>, PointerValue<'ctx>)>;
pub struct Env<'a, 'ctx, 'env> { pub struct Env<'a, 'ctx, 'env> {
@ -56,7 +61,7 @@ pub fn module_from_builtins<'ctx>(ctx: &'ctx Context, module_name: &str) -> Modu
.unwrap_or_else(|err| panic!("Unable to import builtins bitcode. LLVM error: {:?}", err)) .unwrap_or_else(|err| panic!("Unable to import builtins bitcode. LLVM error: {:?}", err))
} }
pub fn add_passes(fpm: &PassManager<FunctionValue<'_>>) { pub fn add_passes(fpm: &PassManager<FunctionValue<'_>>, opt_level: OptLevel) {
// tail-call elimination is always on // tail-call elimination is always on
fpm.add_instruction_combining_pass(); fpm.add_instruction_combining_pass();
fpm.add_tail_call_elimination_pass(); fpm.add_tail_call_elimination_pass();
@ -64,9 +69,11 @@ pub fn add_passes(fpm: &PassManager<FunctionValue<'_>>) {
let pmb = PassManagerBuilder::create(); let pmb = PassManagerBuilder::create();
// Enable more optimizations when running cargo test --release // Enable more optimizations when running cargo test --release
if cfg!(debug_assertions) { match opt_level {
OptLevel::Normal => {
pmb.set_optimization_level(OptimizationLevel::None); pmb.set_optimization_level(OptimizationLevel::None);
} else { }
OptLevel::Optimize => {
// Default is O2, Aggressive is O3 // Default is O2, Aggressive is O3
// //
// See https://llvm.org/doxygen/CodeGen_8h_source.html // See https://llvm.org/doxygen/CodeGen_8h_source.html
@ -86,6 +93,8 @@ pub fn add_passes(fpm: &PassManager<FunctionValue<'_>>) {
// fpm.add_function_inlining_pass(); // fpm.add_function_inlining_pass();
// pmb.set_inliner_with_threshold(4); // pmb.set_inliner_with_threshold(4);
} }
}
pmb.populate_function_pass_manager(&fpm); pmb.populate_function_pass_manager(&fpm);
} }

23
compiler/gen/tests/helpers/eval.rs
View file

@ -12,9 +12,14 @@ macro_rules! assert_llvm_evals_to {
let context = Context::create(); let context = Context::create();
let module = roc_gen::llvm::build::module_from_builtins(&context, "app"); let module = roc_gen::llvm::build::module_from_builtins(&context, "app");
let builder = context.create_builder(); let builder = context.create_builder();
let fpm = inkwell::passes::PassManager::create(&module); let opt_level = if(cfg!(debug_assertions)) {
roc_gen::llvm::build::OptLevel::Normal
} else {
roc_gen::llvm::build::OptLevel::Optimize
};
let fpm = PassManager::create(&module);
roc_gen::llvm::build::add_passes(&fpm); roc_gen::llvm::build::add_passes(&fpm, opt_level);
fpm.initialize(); fpm.initialize();
@ -147,9 +152,14 @@ macro_rules! assert_opt_evals_to {
let context = Context::create(); let context = Context::create();
let module = roc_gen::llvm::build::module_from_builtins(&context, "app"); let module = roc_gen::llvm::build::module_from_builtins(&context, "app");
let builder = context.create_builder(); let builder = context.create_builder();
let opt_level = if(cfg!(debug_assertions)) {
roc_gen::llvm::build::OptLevel::Normal
} else {
roc_gen::llvm::build::OptLevel::Optimize
};
let fpm = PassManager::create(&module); let fpm = PassManager::create(&module);
roc_gen::llvm::build::add_passes(&fpm); roc_gen::llvm::build::add_passes(&fpm, opt_level);
fpm.initialize(); fpm.initialize();
@ -278,9 +288,14 @@ macro_rules! emit_expr {
let context = Context::create(); let context = Context::create();
let module = context.create_module("app"); let module = context.create_module("app");
let builder = context.create_builder(); let builder = context.create_builder();
let opt_level = if(cfg!(debug_assertions)) {
roc_gen::llvm::build::OptLevel::Normal
} else {
roc_gen::llvm::build::OptLevel::Optimize
};
let fpm = PassManager::create(&module); let fpm = PassManager::create(&module);
roc_gen::llvm::build::add_passes(&fpm); roc_gen::llvm::build::add_passes(&fpm, opt_level);
fpm.initialize(); fpm.initialize();