Don't add stack_addr intructions to prelude

bjorn3 · bjorn3 · commit 1018a34662e0 · 2019-08-28T17:59:48.000+02:00
Speeds up simple-raytracer by 30% (cc #684) Also reduces the size of the simple-raytracer binary from 9.2MB to 8.6MB
diff --git a/src/abi.rs b/src/abi.rs
@@ -423,8 +423,7 @@ fn local_place<'tcx>(
             }
         }
 
-        // Take stack_addr in advance to avoid many duplicate instructions
-        CPlace::for_addr(place.to_addr(fx), layout)
+        place
     };
 
     let prev_place = fx.local_map.insert(local, place);

Original file line number	Diff line number	Diff line change
`@@ -423,8 +423,7 @@ fn local_place<'tcx>(`
`423`	`423`	`}`
`424`	`424`	`}`
`425`	`425`
`426`		`- // Take stack_addr in advance to avoid many duplicate instructions`
`427`		`- CPlace::for_addr(place.to_addr(fx), layout)`
	`426`	`+ place`
`428`	`427`	`};`
`429`	`428`
`430`	`429`	`let prev_place = fx.local_map.insert(local, place);`