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Add LLVM attributes in batches instead of individually

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This should improve performance.
This commit is contained in:
Erik Desjardins
2022-02-21 11:19:16 -05:00
parent 6f681a8eb3
commit 30d3ce0674
11 changed files with 451 additions and 473 deletions
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13
compiler/rustc_codegen_llvm/src/context.rs
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@@ -520,7 +520,8 @@ impl<'ll, 'tcx> MiscMethods<'tcx> for CodegenCx<'ll, 'tcx> {
} else {
let fty = self.type_variadic_func(&[], self.type_i32());
let llfn = self.declare_cfn(name, llvm::UnnamedAddr::Global, fty);
attributes::apply_target_cpu_attr(self, llfn);
let target_cpu = attributes::target_cpu_attr(self);
attributes::apply_to_llfn(llfn, llvm::AttributePlace::Function, &[target_cpu]);
llfn
}
}
@@ -550,12 +551,16 @@ impl<'ll, 'tcx> MiscMethods<'tcx> for CodegenCx<'ll, 'tcx> {
}
fn set_frame_pointer_type(&self, llfn: &'ll Value) {
attributes::set_frame_pointer_type(self, llfn)
if let Some(attr) = attributes::frame_pointer_type_attr(self) {
attributes::apply_to_llfn(llfn, llvm::AttributePlace::Function, &[attr]);
}
}
fn apply_target_cpu_attr(&self, llfn: &'ll Value) {
attributes::apply_target_cpu_attr(self, llfn);
attributes::apply_tune_cpu_attr(self, llfn);
let mut attrs = SmallVec::<[_; 2]>::new();
attrs.push(attributes::target_cpu_attr(self));
attrs.extend(attributes::tune_cpu_attr(self));
attributes::apply_to_llfn(llfn, llvm::AttributePlace::Function, &attrs);
}
fn create_used_variable(&self) {