Auto merge of rust-lang#138155 - matthiaskrgr:rollup-xq5buio, r=matthiaskrgr

Rollup of 6 pull requests

Successful merges:

 - rust-lang#137674 (Enable `f16` for LoongArch)
 - rust-lang#138034 (library: Use `size_of` from the prelude instead of imported)
 - rust-lang#138060 (Revert rust-lang#138019 after further discussion about how hir-pretty printing should work)
 - rust-lang#138073 (Break critical edges in inline asm before code generation)
 - rust-lang#138107 (`librustdoc`: clippy fixes)
 - rust-lang#138111 (Use `default_field_values` for `rustc_errors::Context`, `rustc_session::config::NextSolverConfig` and `rustc_session::config::ErrorOutputType`)

r? `@ghost`
`@rustbot` modify labels: rollup

Author: bors

alloc/benches/slice.rs

@@ -1,4 +1,4 @@
-use std::{mem, ptr};
+use std::ptr;
 
 use rand::Rng;
 use rand::distr::{Alphanumeric, SampleString, StandardUniform};
@@ -234,7 +234,7 @@ macro_rules! sort {
         fn $name(b: &mut Bencher) {
             let v = $gen($len);
             b.iter(|| v.clone().$f());
-            b.bytes = $len * mem::size_of_val(&$gen(1)[0]) as u64;
+            b.bytes = $len * size_of_val(&$gen(1)[0]) as u64;
         }
     };
 }
@@ -246,7 +246,7 @@ macro_rules! sort_strings {
             let v = $gen($len);
             let v = v.iter().map(|s| &**s).collect::<Vec<&str>>();
             b.iter(|| v.clone().$f());
-            b.bytes = $len * mem::size_of::<&str>() as u64;
+            b.bytes = $len * size_of::<&str>() as u64;
         }
     };
 }
@@ -268,7 +268,7 @@ macro_rules! sort_expensive {
                 });
                 black_box(count);
             });
-            b.bytes = $len * mem::size_of_val(&$gen(1)[0]) as u64;
+            b.bytes = $len * size_of_val(&$gen(1)[0]) as u64;
         }
     };
 }
@@ -279,7 +279,7 @@ macro_rules! sort_lexicographic {
         fn $name(b: &mut Bencher) {
             let v = $gen($len);
             b.iter(|| v.clone().$f(|x| x.to_string()));
-            b.bytes = $len * mem::size_of_val(&$gen(1)[0]) as u64;
+            b.bytes = $len * size_of_val(&$gen(1)[0]) as u64;
         }
     };
 }
@@ -322,7 +322,7 @@ macro_rules! reverse {
         fn $name(b: &mut Bencher) {
             // odd length and offset by 1 to be as unaligned as possible
             let n = 0xFFFFF;
-            let mut v: Vec<_> = (0..1 + (n / mem::size_of::<$ty>() as u64)).map($f).collect();
+            let mut v: Vec<_> = (0..1 + (n / size_of::<$ty>() as u64)).map($f).collect();
             b.iter(|| black_box(&mut v[1..]).reverse());
             b.bytes = n;
         }
@@ -346,7 +346,7 @@ macro_rules! rotate {
     ($name:ident, $gen:expr, $len:expr, $mid:expr) => {
         #[bench]
         fn $name(b: &mut Bencher) {
-            let size = mem::size_of_val(&$gen(1)[0]);
+            let size = size_of_val(&$gen(1)[0]);
             let mut v = $gen($len * 8 / size);
             b.iter(|| black_box(&mut v).rotate_left(($mid * 8 + size - 1) / size));
             b.bytes = (v.len() * size) as u64;

alloc/benches/vec.rs

@@ -669,7 +669,7 @@ fn random_sorted_fill(mut seed: u32, buf: &mut [u32]) {
 // This algorithm was used for Vecs prior to Rust 1.52.
 fn bench_dedup_slice_truncate(b: &mut Bencher, sz: usize) {
     let mut template = vec![0u32; sz];
-    b.bytes = std::mem::size_of_val(template.as_slice()) as u64;
+    b.bytes = size_of_val(template.as_slice()) as u64;
     random_sorted_fill(0x43, &mut template);
 
     let mut vec = template.clone();
@@ -691,7 +691,7 @@ fn bench_dedup_slice_truncate(b: &mut Bencher, sz: usize) {
 // Measures performance of Vec::dedup on random data.
 fn bench_vec_dedup_random(b: &mut Bencher, sz: usize) {
     let mut template = vec![0u32; sz];
-    b.bytes = std::mem::size_of_val(template.as_slice()) as u64;
+    b.bytes = size_of_val(template.as_slice()) as u64;
     random_sorted_fill(0x43, &mut template);
 
     let mut vec = template.clone();
@@ -708,7 +708,7 @@ fn bench_vec_dedup_random(b: &mut Bencher, sz: usize) {
 // Measures performance of Vec::dedup when there is no items removed
 fn bench_vec_dedup_none(b: &mut Bencher, sz: usize) {
     let mut template = vec![0u32; sz];
-    b.bytes = std::mem::size_of_val(template.as_slice()) as u64;
+    b.bytes = size_of_val(template.as_slice()) as u64;
     template.chunks_exact_mut(2).for_each(|w| {
         w[0] = black_box(0);
         w[1] = black_box(5);
@@ -729,7 +729,7 @@ fn bench_vec_dedup_none(b: &mut Bencher, sz: usize) {
 // Measures performance of Vec::dedup when there is all items removed
 fn bench_vec_dedup_all(b: &mut Bencher, sz: usize) {
     let mut template = vec![0u32; sz];
-    b.bytes = std::mem::size_of_val(template.as_slice()) as u64;
+    b.bytes = size_of_val(template.as_slice()) as u64;
     template.iter_mut().for_each(|w| {
         *w = black_box(0);
     });