Skip to content

Various codegen_llvm cleanups #138674

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 8 commits into from
Mar 19, 2025
Merged

Various codegen_llvm cleanups #138674

Changes from 1 commit
Commits
Show all changes
8 commits
Select commit Hold shift + click to select a range
eef70a9
Create a safe wrapper around LLVMRustDIBuilderCreateTemplateTypeParam…
oli-obk Mar 17, 2025
b4acf7a
Immediately create an `Option` instead of reallocating for it later
oli-obk Mar 17, 2025
6adc2c1
Deduplicate template parameter creation
oli-obk Mar 17, 2025
e19e4e3
Create a safe wrapper around `LLVMRustDIBuilderCreateSubroutineType`
oli-obk Mar 17, 2025
cc41dd4
Create a safe wrapper function around `LLVMRustDIBuilderCreateFile`
oli-obk Mar 17, 2025
018032c
Create a safe wrapper around `LLVMRustDIBuilderCreateBasicType`
oli-obk Mar 17, 2025
1f34b19
Avoid splitting up a layout
oli-obk Mar 18, 2025
f4b0984
Create a safe wrapper around `LLVMRustDIBuilderCreateMemberType`
oli-obk Mar 17, 2025
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
59 changes: 26 additions & 33 deletions compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -2,6 +2,7 @@ use std::borrow::Cow;
use std::fmt::{self, Write};
use std::hash::{Hash, Hasher};
use std::path::{Path, PathBuf};
use std::sync::Arc;
use std::{iter, ptr};

use libc::{c_char, c_longlong, c_uint};
Expand Down Expand Up @@ -38,7 +39,7 @@ use crate::debuginfo::metadata::type_map::build_type_with_children;
use crate::debuginfo::utils::{WidePtrKind, wide_pointer_kind};
use crate::llvm;
use crate::llvm::debuginfo::{
DICompositeType, DIDescriptor, DIFile, DIFlags, DILexicalBlock, DIScope, DIType,
DIBuilder, DICompositeType, DIDescriptor, DIFile, DIFlags, DILexicalBlock, DIScope, DIType,
DebugEmissionKind, DebugNameTableKind,
};
use crate::value::Value;
Expand Down Expand Up @@ -623,42 +624,38 @@ pub(crate) fn file_metadata<'ll>(cx: &CodegenCx<'ll, '_>, source_file: &SourceFi
let source =
cx.sess().opts.unstable_opts.embed_source.then_some(()).and(source_file.src.as_ref());

unsafe {
llvm::LLVMRustDIBuilderCreateFile(
DIB(cx),
file_name.as_c_char_ptr(),
file_name.len(),
directory.as_c_char_ptr(),
directory.len(),
hash_kind,
hash_value.as_c_char_ptr(),
hash_value.len(),
source.map_or(ptr::null(), |x| x.as_c_char_ptr()),
source.map_or(0, |x| x.len()),
)
}
create_file(DIB(cx), &file_name, &directory, &hash_value, hash_kind, source)
}
}

fn unknown_file_metadata<'ll>(cx: &CodegenCx<'ll, '_>) -> &'ll DIFile {
debug_context(cx).created_files.borrow_mut().entry(None).or_insert_with(|| unsafe {
let file_name = "<unknown>";
let directory = "";
let hash_value = "";
debug_context(cx).created_files.borrow_mut().entry(None).or_insert_with(|| {
create_file(DIB(cx), "<unknown>", "", "", llvm::ChecksumKind::None, None)
})
}

fn create_file<'ll>(
builder: &DIBuilder<'ll>,
file_name: &str,
directory: &str,
hash_value: &str,
hash_kind: llvm::ChecksumKind,
source: Option<&Arc<String>>,
) -> &'ll DIFile {
unsafe {
llvm::LLVMRustDIBuilderCreateFile(
DIB(cx),
builder,
file_name.as_c_char_ptr(),
file_name.len(),
directory.as_c_char_ptr(),
directory.len(),
llvm::ChecksumKind::None,
hash_kind,
hash_value.as_c_char_ptr(),
hash_value.len(),
ptr::null(),
0,
source.map_or(ptr::null(), |x| x.as_c_char_ptr()),
source.map_or(0, |x| x.len()),
)
})
}
}

trait MsvcBasicName {
Expand Down Expand Up @@ -932,17 +929,13 @@ pub(crate) fn build_compile_unit_di_node<'ll, 'tcx>(
};

unsafe {
let compile_unit_file = llvm::LLVMRustDIBuilderCreateFile(
let compile_unit_file = create_file(
debug_context.builder.as_ref(),
name_in_debuginfo.as_c_char_ptr(),
name_in_debuginfo.len(),
work_dir.as_c_char_ptr(),
work_dir.len(),
&name_in_debuginfo,
&work_dir,
"",
llvm::ChecksumKind::None,
Copy link
Contributor Author

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Maybe this. Empty string now, null pointer before

Copy link
Contributor Author

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

But that wouldn't explain the query count changes

ptr::null(),
0,
ptr::null(),
0,
None,
);

let unit_metadata = llvm::LLVMRustDIBuilderCreateCompileUnit(
Expand Down