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Sync rustc_codegen_cranelift 'ddd4ce25535cf71203ba3700896131ce55fde795'

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This commit is contained in:
Erin Power
2021-04-30 14:49:58 +02:00
parent 49920bc581 ddd4ce2553
commit 505aa48f24
43 changed files with 784 additions and 1243 deletions
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58
compiler/rustc_codegen_cranelift/src/driver/mod.rs
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@@ -1,63 +1,37 @@
//! Drivers are responsible for calling [`codegen_mono_item`] and performing any further actions
//! like JIT executing or writing object files.
//! Drivers are responsible for calling [`codegen_fn`] or [`codegen_static`] for each mono item and
//! performing any further actions like JIT executing or writing object files.
//!
//! [`codegen_fn`]: crate::base::codegen_fn
//! [`codegen_static`]: crate::constant::codegen_static
use std::any::Any;
use rustc_middle::middle::cstore::EncodedMetadata;
use rustc_middle::mir::mono::{Linkage as RLinkage, MonoItem, Visibility};
use crate::prelude::*;
use crate::CodegenMode;
mod aot;
pub(crate) mod aot;
#[cfg(feature = "jit")]
mod jit;
pub(crate) fn codegen_crate(
tcx: TyCtxt<'_>,
metadata: EncodedMetadata,
need_metadata_module: bool,
backend_config: crate::BackendConfig,
) -> Box<dyn Any> {
tcx.sess.abort_if_errors();
match backend_config.codegen_mode {
CodegenMode::Aot => aot::run_aot(tcx, backend_config, metadata, need_metadata_module),
CodegenMode::Jit | CodegenMode::JitLazy => {
let is_executable =
tcx.sess.crate_types().contains(&rustc_session::config::CrateType::Executable);
if !is_executable {
tcx.sess.fatal("can't jit non-executable crate");
}
#[cfg(feature = "jit")]
let _: ! = jit::run_jit(tcx, backend_config);
#[cfg(not(feature = "jit"))]
tcx.sess.fatal("jit support was disabled when compiling rustc_codegen_cranelift");
}
}
}
pub(crate) mod jit;
fn predefine_mono_items<'tcx>(
cx: &mut crate::CodegenCx<'_, 'tcx>,
tcx: TyCtxt<'tcx>,
module: &mut dyn Module,
mono_items: &[(MonoItem<'tcx>, (RLinkage, Visibility))],
) {
cx.tcx.sess.time("predefine functions", || {
let is_compiler_builtins = cx.tcx.is_compiler_builtins(LOCAL_CRATE);
tcx.sess.time("predefine functions", || {
let is_compiler_builtins = tcx.is_compiler_builtins(LOCAL_CRATE);
for &(mono_item, (linkage, visibility)) in mono_items {
match mono_item {
MonoItem::Fn(instance) => {
let name = cx.tcx.symbol_name(instance).name.to_string();
let name = tcx.symbol_name(instance).name;
let _inst_guard = crate::PrintOnPanic(|| format!("{:?} {}", instance, name));
let sig = get_function_sig(cx.tcx, cx.module.isa().triple(), instance);
let sig = get_function_sig(tcx, module.isa().triple(), instance);
let linkage = crate::linkage::get_clif_linkage(
mono_item,
linkage,
visibility,
is_compiler_builtins,
);
cx.module.declare_function(&name, linkage, &sig).unwrap();
module.declare_function(name, linkage, &sig).unwrap();
}
MonoItem::Static(_) | MonoItem::GlobalAsm(_) => {}
}
@@ -65,8 +39,8 @@ fn predefine_mono_items<'tcx>(
});
}
fn time<R>(tcx: TyCtxt<'_>, name: &'static str, f: impl FnOnce() -> R) -> R {
if std::env::var("CG_CLIF_DISPLAY_CG_TIME").as_ref().map(|val| &**val) == Ok("1") {
fn time<R>(tcx: TyCtxt<'_>, display: bool, name: &'static str, f: impl FnOnce() -> R) -> R {
if display {
println!("[{:<30}: {}] start", tcx.crate_name(LOCAL_CRATE), name);
let before = std::time::Instant::now();
let res = tcx.sess.time(name, f);