Auto merge of rust-lang#148093 - Azzybana:master, r=nnethercote

bors · bors · commit c8e771c63e43 · 2025-10-29T15:37:05.000Z
perf: removed unnecessary let for return only in layout.rs

perf: removed unnecessary let for return only
diff --git a/core/src/alloc/layout.rs b/core/src/alloc/layout.rs
@@ -316,8 +316,7 @@ impl Layout {
         // Size 1 Align MAX or Size isize::MAX Align 2 round up to `isize::MAX + 1`.)
         unsafe {
             let align_m1 = unchecked_sub(align.as_usize(), 1);
-            let size_rounded_up = unchecked_add(self.size, align_m1) & !align_m1;
-            size_rounded_up
+            unchecked_add(self.size, align_m1) & !align_m1
         }
     }
 

Original file line number	Diff line number	Diff line change
`@@ -316,8 +316,7 @@ impl Layout {`
`316`	`316`	// Size 1 Align MAX or Size isize::MAX Align 2 round up to `isize::MAX + 1`.)
`317`	`317`	`unsafe {`
`318`	`318`	`let align_m1 = unchecked_sub(align.as_usize(), 1);`
`319`		`- let size_rounded_up = unchecked_add(self.size, align_m1) & !align_m1;`
`320`		`- size_rounded_up`
	`319`	`+ unchecked_add(self.size, align_m1) & !align_m1`
`321`	`320`	`}`
`322`	`321`	`}`
`323`	`322`