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Implement printing to file in llvm_util

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This commit is contained in:
David Tolnay 2023-07-13 16:54:25 -07:00
parent c80cbe4bae
commit 6e734fce63
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GPG Key ID: F9BA143B95FF6D82
3 changed files with 17 additions and 14 deletions
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2
compiler/rustc_codegen_llvm/src/lib.rs
View File

@ -320,7 +320,7 @@ fn print(&self, req: &PrintRequest, out: &mut dyn PrintBackendInfo, sess: &Sessi
"#
);
}
_other => llvm_util::print(req, sess),
_other => llvm_util::print(req, out, sess),
}
}

25
compiler/rustc_codegen_llvm/src/llvm_util.rs
View File

@ -8,6 +8,7 @@
use rustc_codegen_ssa::target_features::{
supported_target_features, tied_target_features, RUSTC_SPECIFIC_FEATURES,
};
use rustc_codegen_ssa::traits::PrintBackendInfo;
use rustc_data_structures::fx::{FxHashMap, FxHashSet};
use rustc_data_structures::small_c_str::SmallCStr;
use rustc_fs_util::path_to_c_string;
@ -350,7 +351,7 @@ fn llvm_target_features(tm: &llvm::TargetMachine) -> Vec<(&str, &str)> {
ret
}
fn print_target_features(sess: &Session, tm: &llvm::TargetMachine) {
fn print_target_features(out: &mut dyn PrintBackendInfo, sess: &Session, tm: &llvm::TargetMachine) {
let mut llvm_target_features = llvm_target_features(tm);
let mut known_llvm_target_features = FxHashSet::<&'static str>::default();
let mut rustc_target_features = supported_target_features(sess)
@ -383,24 +384,24 @@ fn print_target_features(sess: &Session, tm: &llvm::TargetMachine) {
.max()
.unwrap_or(0);
println!("Features supported by rustc for this target:");
writeln!(out, "Features supported by rustc for this target:");
for (feature, desc) in &rustc_target_features {
println!(" {1:0$} - {2}.", max_feature_len, feature, desc);
writeln!(out, " {1:0$} - {2}.", max_feature_len, feature, desc);
}
println!("\nCode-generation features supported by LLVM for this target:");
writeln!(out, "\nCode-generation features supported by LLVM for this target:");
for (feature, desc) in &llvm_target_features {
println!(" {1:0$} - {2}.", max_feature_len, feature, desc);
writeln!(out, " {1:0$} - {2}.", max_feature_len, feature, desc);
}
if llvm_target_features.is_empty() {
println!(" Target features listing is not supported by this LLVM version.");
writeln!(out, " Target features listing is not supported by this LLVM version.");
}
println!("\nUse +feature to enable a feature, or -feature to disable it.");
println!("For example, rustc -C target-cpu=mycpu -C target-feature=+feature1,-feature2\n");
println!("Code-generation features cannot be used in cfg or #[target_feature],");
println!("and may be renamed or removed in a future version of LLVM or rustc.\n");
writeln!(out, "\nUse +feature to enable a feature, or -feature to disable it.");
writeln!(out, "For example, rustc -C target-cpu=mycpu -C target-feature=+feature1,-feature2\n");
writeln!(out, "Code-generation features cannot be used in cfg or #[target_feature],");
writeln!(out, "and may be renamed or removed in a future version of LLVM or rustc.\n");
}
pub(crate) fn print(req: &PrintRequest, sess: &Session) {
pub(crate) fn print(req: &PrintRequest, out: &mut dyn PrintBackendInfo, sess: &Session) {
require_inited();
let tm = create_informational_target_machine(sess);
match req.kind {
@ -412,7 +413,7 @@ pub(crate) fn print(req: &PrintRequest, sess: &Session) {
.unwrap_or_else(|e| bug!("failed to convert to cstring: {}", e));
unsafe { llvm::LLVMRustPrintTargetCPUs(tm, cpu_cstring.as_ptr()) };
}
PrintKind::TargetFeatures => print_target_features(sess, tm),
PrintKind::TargetFeatures => print_target_features(out, sess, tm),
_ => bug!("rustc_codegen_llvm can't handle print request: {:?}", req),
}
}

4
compiler/rustc_codegen_ssa/src/traits/mod.rs
View File

@ -30,7 +30,9 @@
pub use self::abi::AbiBuilderMethods;
pub use self::asm::{AsmBuilderMethods, AsmMethods, GlobalAsmOperandRef, InlineAsmOperandRef};
pub use self::backend::{Backend, BackendTypes, CodegenBackend, ExtraBackendMethods, PrintBackendInfo};
pub use self::backend::{
Backend, BackendTypes, CodegenBackend, ExtraBackendMethods, PrintBackendInfo,
};
pub use self::builder::{BuilderMethods, OverflowOp};
pub use self::consts::ConstMethods;
pub use self::coverageinfo::CoverageInfoBuilderMethods;