diff options
Diffstat (limited to 'compiler/rustc_codegen_llvm/src/back/write.rs')
| -rw-r--r-- | compiler/rustc_codegen_llvm/src/back/write.rs | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/compiler/rustc_codegen_llvm/src/back/write.rs b/compiler/rustc_codegen_llvm/src/back/write.rs index 97d2e1670e5..02e3bb06dda 100644 --- a/compiler/rustc_codegen_llvm/src/back/write.rs +++ b/compiler/rustc_codegen_llvm/src/back/write.rs @@ -709,13 +709,15 @@ pub(crate) unsafe fn codegen( // asm from LLVM and use `gcc` to create the object file. let bc_out = cgcx.output_filenames.temp_path(OutputType::Bitcode, module_name); + let bc_summary_out = + cgcx.output_filenames.temp_path(OutputType::ThinLinkBitcode, module_name); let obj_out = cgcx.output_filenames.temp_path(OutputType::Object, module_name); if config.bitcode_needed() { let _timer = cgcx .prof .generic_activity_with_arg("LLVM_module_codegen_make_bitcode", &*module.name); - let thin = ThinBuffer::new(llmod, config.emit_thin_lto); + let thin = ThinBuffer::new(llmod, config.emit_thin_lto, config.emit_thin_lto_summary); let data = thin.data(); if let Some(bitcode_filename) = bc_out.file_name() { @@ -726,6 +728,25 @@ pub(crate) unsafe fn codegen( ); } + if config.emit_thin_lto_summary + && let Some(thin_link_bitcode_filename) = bc_summary_out.file_name() + { + let summary_data = thin.thin_link_data(); + cgcx.prof.artifact_size( + "llvm_bitcode_summary", + thin_link_bitcode_filename.to_string_lossy(), + summary_data.len() as u64, + ); + + let _timer = cgcx.prof.generic_activity_with_arg( + "LLVM_module_codegen_emit_bitcode_summary", + &*module.name, + ); + if let Err(err) = fs::write(&bc_summary_out, summary_data) { + dcx.emit_err(WriteBytecode { path: &bc_summary_out, err }); + } + } + if config.emit_bc || config.emit_obj == EmitObj::Bitcode { let _timer = cgcx .prof |