mirror of
https://github.com/rust-lang/rust
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1667f3d2cc
`.debug_pubnames` and `.debug_pubtypes` are poorly designed and people seldom use them. However, they take a considerable portion of size in the final binary. This tells LLVM stop emitting those sections on DWARFv4 or lower. DWARFv5 use `.debug_names` which is more concise in size and performant for name lookup.
25 lines
572 B
Rust
25 lines
572 B
Rust
// Makes sure that `-Z dwarf-version=4` causes `rustc` to emit DWARF version 4.
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// assembly-output: emit-asm
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// compile-flags: -g --target x86_64-unknown-linux-gnu -Z dwarf-version=4 -Copt-level=0
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// needs-llvm-components: x86
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#![feature(no_core, lang_items)]
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#![crate_type = "rlib"]
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#![no_core]
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#[lang = "sized"]
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trait Sized {}
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#[lang = "copy"]
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trait Copy {}
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pub fn wibble() {}
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pub struct X;
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// CHECK: .section .debug_info
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// CHECK-NOT: .short 2
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// CHECK-NOT: .short 5
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// CHECK: .short 4
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// CHECK-NOT: .section .debug_pubnames
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// CHECK-NOT: .section .debug_pubtypes
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