Generate better function argument names in global_allocator expansion

[dtolnay]

Generated code for #[global_allocator] static ALLOCATOR: Allocator = Allocator;—

Before:

const _: () = {
    #[rustc_std_internal_symbol]
    unsafe fn __rust_alloc(arg0: usize, arg1: usize) -> *mut u8 {
        ::core::alloc::GlobalAlloc::alloc(
            &ALLOCATOR,
            ::core::alloc::Layout::from_size_align_unchecked(arg0, arg1),
        )
    }
    #[rustc_std_internal_symbol]
    unsafe fn __rust_dealloc(arg0: *mut u8, arg1: usize, arg2: usize) -> () {
        ::core::alloc::GlobalAlloc::dealloc(
            &ALLOCATOR,
            arg0,
            ::core::alloc::Layout::from_size_align_unchecked(arg1, arg2),
        )
    }
    #[rustc_std_internal_symbol]
    unsafe fn __rust_realloc(
        arg0: *mut u8,
        arg1: usize,
        arg2: usize,
        arg3: usize,
    ) -> *mut u8 {
        ::core::alloc::GlobalAlloc::realloc(
            &ALLOCATOR,
            arg0,
            ::core::alloc::Layout::from_size_align_unchecked(arg1, arg2),
            arg3,
        )
    }
    #[rustc_std_internal_symbol]
    unsafe fn __rust_alloc_zeroed(arg0: usize, arg1: usize) -> *mut u8 {
        ::core::alloc::GlobalAlloc::alloc_zeroed(
            &ALLOCATOR,
            ::core::alloc::Layout::from_size_align_unchecked(arg0, arg1),
        )
    }
};

After:

const _: () = {
    #[rustc_std_internal_symbol]
    unsafe fn __rust_alloc(size: usize, align: usize) -> *mut u8 {
        ::core::alloc::GlobalAlloc::alloc(
            &ALLOCATOR,
            ::core::alloc::Layout::from_size_align_unchecked(size, align),
        )
    }
    #[rustc_std_internal_symbol]
    unsafe fn __rust_dealloc(ptr: *mut u8, size: usize, align: usize) -> () {
        ::core::alloc::GlobalAlloc::dealloc(
            &ALLOCATOR,
            ptr,
            ::core::alloc::Layout::from_size_align_unchecked(size, align),
        )
    }
    #[rustc_std_internal_symbol]
    unsafe fn __rust_realloc(
        ptr: *mut u8,
        size: usize,
        align: usize,
        new_size: usize,
    ) -> *mut u8 {
        ::core::alloc::GlobalAlloc::realloc(
            &ALLOCATOR,
            ptr,
            ::core::alloc::Layout::from_size_align_unchecked(size, align),
            new_size,
        )
    }
    #[rustc_std_internal_symbol]
    unsafe fn __rust_alloc_zeroed(size: usize, align: usize) -> *mut u8 {
        ::core::alloc::GlobalAlloc::alloc_zeroed(
            &ALLOCATOR,
            ::core::alloc::Layout::from_size_align_unchecked(size, align),
        )
    }
};

[rustbot]

r? @cjgillot

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[rustbot]

Some changes occurred in compiler/rustc_codegen_cranelift

cc @bjorn3

Some changes occurred in compiler/rustc_codegen_gcc

cc @antoyo

[compiler-errors]

@bors r+ rollup

[bors]

📌 Commit 704aa56 has been approved by compiler-errors

It is now in the queue for this repository.