+//! This module provides the [CommentWriter] which makes it possible
+//! to add comments to the written cranelift ir.
+//!
+//! # Example
+//!
+//! ```clif
+//! test compile
+//! target x86_64
+//!
+//! function u0:0(i64, i64, i64) system_v {
+//! ; symbol _ZN119_$LT$example..IsNotEmpty$u20$as$u20$mini_core..FnOnce$LT$$LP$$RF$$u27$a$u20$$RF$$u27$b$u20$$u5b$u16$u5d$$C$$RP$$GT$$GT$9call_once17he85059d5e6a760a0E
+//! ; instance Instance { def: Item(DefId(0/0:29 ~ example[8787]::{{impl}}[0]::call_once[0])), substs: [ReErased, ReErased] }
+//! ; sig ([IsNotEmpty, (&&[u16],)]; c_variadic: false)->(u8, u8)
+//!
+//! ; ssa {_2: NOT_SSA, _4: NOT_SSA, _0: NOT_SSA, _3: (empty), _1: NOT_SSA}
+//! ; msg loc.idx param pass mode ssa flags ty
+//! ; ret _0 = v0 ByRef NOT_SSA (u8, u8)
+//! ; arg _1 = v1 ByRef NOT_SSA IsNotEmpty
+//! ; arg _2.0 = v2 ByVal(types::I64) NOT_SSA &&[u16]
+//!
+//! ss0 = explicit_slot 0 ; _1: IsNotEmpty size=0 align=1,8
+//! ss1 = explicit_slot 8 ; _2: (&&[u16],) size=8 align=8,8
+//! ss2 = explicit_slot 8 ; _4: (&&[u16],) size=8 align=8,8
+//! sig0 = (i64, i64, i64) system_v
+//! sig1 = (i64, i64, i64) system_v
+//! fn0 = colocated u0:6 sig1 ; Instance { def: Item(DefId(0/0:31 ~ example[8787]::{{impl}}[1]::call_mut[0])), substs: [ReErased, ReErased] }
+//!
+//! block0(v0: i64, v1: i64, v2: i64):
+//! v3 = stack_addr.i64 ss0
+//! v4 = stack_addr.i64 ss1
+//! store v2, v4
+//! v5 = stack_addr.i64 ss2
+//! jump block1
+//!
+//! block1:
+//! nop
+//! ; _3 = &mut _1
+//! ; _4 = _2
+//! v6 = load.i64 v4
+//! store v6, v5
+//! ;
+//! ; _0 = const mini_core::FnMut::call_mut(move _3, move _4)
+//! v7 = load.i64 v5
+//! call fn0(v0, v3, v7)
+//! jump block2
+//!
+//! block2:
+//! nop
+//! ;
+//! ; return
+//! return
+//! }
+//! ```
+
use std::fmt;
use cranelift_codegen::{
write::{FuncWriter, PlainWriter},
};
-use crate::prelude::*;
+use rustc_session::config::OutputType;
-/// This module provides the [CommentWriter] which makes it possible
-/// to add comments to the written cranelift ir.
-///
-/// # Example
-///
-/// ```clif
-/// test compile
-/// target x86_64
-///
-/// function u0:0(i64, i64, i64) system_v {
-/// ; symbol _ZN119_$LT$example..IsNotEmpty$u20$as$u20$mini_core..FnOnce$LT$$LP$$RF$$u27$a$u20$$RF$$u27$b$u20$$u5b$u16$u5d$$C$$RP$$GT$$GT$9call_once17he85059d5e6a760a0E
-/// ; instance Instance { def: Item(DefId(0/0:29 ~ example[8787]::{{impl}}[0]::call_once[0])), substs: [ReErased, ReErased] }
-/// ; sig ([IsNotEmpty, (&&[u16],)]; c_variadic: false)->(u8, u8)
-///
-/// ; ssa {_2: NOT_SSA, _4: NOT_SSA, _0: NOT_SSA, _3: (empty), _1: NOT_SSA}
-/// ; msg loc.idx param pass mode ssa flags ty
-/// ; ret _0 = v0 ByRef NOT_SSA (u8, u8)
-/// ; arg _1 = v1 ByRef NOT_SSA IsNotEmpty
-/// ; arg _2.0 = v2 ByVal(types::I64) NOT_SSA &&[u16]
-///
-/// ss0 = explicit_slot 0 ; _1: IsNotEmpty size=0 align=1,8
-/// ss1 = explicit_slot 8 ; _2: (&&[u16],) size=8 align=8,8
-/// ss2 = explicit_slot 8 ; _4: (&&[u16],) size=8 align=8,8
-/// sig0 = (i64, i64, i64) system_v
-/// sig1 = (i64, i64, i64) system_v
-/// fn0 = colocated u0:6 sig1 ; Instance { def: Item(DefId(0/0:31 ~ example[8787]::{{impl}}[1]::call_mut[0])), substs: [ReErased, ReErased] }
-///
-/// block0(v0: i64, v1: i64, v2: i64):
-/// v3 = stack_addr.i64 ss0
-/// v4 = stack_addr.i64 ss1
-/// store v2, v4
-/// v5 = stack_addr.i64 ss2
-/// jump block1
-///
-/// block1:
-/// nop
-/// ; _3 = &mut _1
-/// ; _4 = _2
-/// v6 = load.i64 v4
-/// store v6, v5
-/// ;
-/// ; _0 = const mini_core::FnMut::call_mut(move _3, move _4)
-/// v7 = load.i64 v5
-/// call fn0(v0, v3, v7)
-/// jump block2
-///
-/// block2:
-/// nop
-/// ;
-/// ; return
-/// return
-/// }
-/// ```
+use crate::prelude::*;
#[derive(Debug)]
pub(crate) struct CommentWriter {
pub(crate) fn new<'tcx>(tcx: TyCtxt<'tcx>, instance: Instance<'tcx>) -> Self {
let global_comments = if cfg!(debug_assertions) {
vec![
- format!("symbol {}", tcx.symbol_name(instance).name.as_str()),
+ format!("symbol {}", tcx.symbol_name(instance).name),
format!("instance {:?}", instance),
format!(
"sig {:?}",
}
#[cfg(debug_assertions)]
-impl<B: Backend + 'static> FunctionCx<'_, '_, B> {
+impl<M: Module> FunctionCx<'_, '_, M> {
pub(crate) fn add_global_comment<S: Into<String>>(&mut self, comment: S) {
self.clif_comments.add_global_comment(comment);
}
entity: E,
comment: S,
) {
- self.clif_comments.add_comment(entity, comment);
+ self.clif_comments.add_comment(entity, comment);
}
}
-#[cfg(debug_assertions)]
pub(crate) fn write_clif_file<'tcx>(
tcx: TyCtxt<'tcx>,
postfix: &str,
+ isa: Option<&dyn cranelift_codegen::isa::TargetIsa>,
instance: Instance<'tcx>,
- func: &cranelift_codegen::ir::Function,
+ context: &cranelift_codegen::Context,
mut clif_comments: &CommentWriter,
- value_ranges: Option<&cranelift_codegen::ValueLabelsRanges>,
) {
use std::io::Write;
- let symbol_name = tcx.symbol_name(instance).name.as_str();
- let clif_file_name = format!(
- "{}/{}__{}.{}.clif",
- concat!(env!("CARGO_MANIFEST_DIR"), "/target/out/clif"),
- tcx.crate_name(LOCAL_CRATE),
- symbol_name,
- postfix,
- );
+ if !cfg!(debug_assertions)
+ && !tcx
+ .sess
+ .opts
+ .output_types
+ .contains_key(&OutputType::LlvmAssembly)
+ {
+ return;
+ }
+
+ let value_ranges = isa.map(|isa| {
+ context
+ .build_value_labels_ranges(isa)
+ .expect("value location ranges")
+ });
+
+ let clif_output_dir = tcx.output_filenames(LOCAL_CRATE).with_extension("clif");
+
+ match std::fs::create_dir(&clif_output_dir) {
+ Ok(()) => {}
+ Err(err) if err.kind() == std::io::ErrorKind::AlreadyExists => {}
+ res @ Err(_) => res.unwrap(),
+ }
+
+ let clif_file_name = clif_output_dir.join(format!(
+ "{}.{}.clif",
+ tcx.symbol_name(instance).name,
+ postfix
+ ));
let mut clif = String::new();
cranelift_codegen::write::decorate_function(
&mut clif_comments,
&mut clif,
- &func,
+ &context.func,
&DisplayFunctionAnnotations {
isa: Some(&*crate::build_isa(
tcx.sess, true, /* PIC doesn't matter here */
)),
- value_ranges,
+ value_ranges: value_ranges.as_ref(),
},
)
.unwrap();
- match ::std::fs::File::create(clif_file_name) {
- Ok(mut file) => {
- let target_triple = crate::target_triple(tcx.sess);
- writeln!(file, "test compile").unwrap();
- writeln!(file, "set is_pic").unwrap();
- writeln!(file, "target {}", target_triple).unwrap();
- writeln!(file, "").unwrap();
- file.write(clif.as_bytes()).unwrap();
- }
- Err(e) => {
- tcx.sess.warn(&format!("err opening clif file: {:?}", e));
- }
+ let res: std::io::Result<()> = try {
+ let mut file = std::fs::File::create(clif_file_name)?;
+ let target_triple = crate::target_triple(tcx.sess);
+ writeln!(file, "test compile")?;
+ writeln!(file, "set is_pic")?;
+ writeln!(file, "set enable_simd")?;
+ writeln!(file, "target {} haswell", target_triple)?;
+ writeln!(file, "")?;
+ file.write(clif.as_bytes())?;
+ };
+ if let Err(err) = res {
+ tcx.sess.warn(&format!("err writing clif file: {}", err));
}
}
-impl<B: Backend + 'static> fmt::Debug for FunctionCx<'_, '_, B> {
+impl<M: Module> fmt::Debug for FunctionCx<'_, '_, M> {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
writeln!(f, "{:?}", self.instance.substs)?;
writeln!(f, "{:?}", self.local_map)?;