Shrink allocations to fit the type at hand

oli-obk · oli-obk · commit fc82f3b71125 · 2018-10-22T13:05:42.000+02:00
diff --git a/src/librustc/ty/sty.rs b/src/librustc/ty/sty.rs
@@ -1986,7 +1986,7 @@ impl<'tcx> Const<'tcx> {
         let mut bytes = [0_u8; 16];
         let endian = tcx.data_layout.endian;
         write_target_uint(endian, &mut bytes, bits).unwrap();
-        Self::from_bytes(tcx, &bytes, layout)
+        Self::from_bytes(tcx, &bytes[0..(layout.size.bytes() as usize)], layout)
     }
 
     #[inline]

Original file line number	Diff line number	Diff line change
`@@ -1986,7 +1986,7 @@ impl<'tcx> Const<'tcx> {`
`1986`	`1986`	`let mut bytes = [0_u8; 16];`
`1987`	`1987`	`let endian = tcx.data_layout.endian;`
`1988`	`1988`	`write_target_uint(endian, &mut bytes, bits).unwrap();`
`1989`		`- Self::from_bytes(tcx, &bytes, layout)`
	`1989`	`+ Self::from_bytes(tcx, &bytes[0..(layout.size.bytes() as usize)], layout)`
`1990`	`1990`	`}`
`1991`	`1991`
`1992`	`1992`	`#[inline]`