remove_switch_in_projectiveIntoAffine (#115)

lambdaclass · Sep 21, 2023 · e155896 · e155896
1 parent 637ea8e
commit e155896
Showing 1 changed file with 5 additions and 10 deletions.
diff --git a/precompiles/EcMul.yul b/precompiles/EcMul.yul
@@ -293,16 +293,11 @@ object "EcMul" {
             /// @return xr The x coordinate of the point P in affine coordinates in Montgomery form.
             /// @return yr The y coordinate of the point P in affine coordinates in Montgomery form.
             function projectiveIntoAffine(xp, yp, zp) -> xr, yr {
-                switch zp
-                case 0 {
-                    xr := 0
-                    yr := 0
-                }
-                default {
-                    let zp_inv := montgomeryModularInverse(zp)
-                    xr := montgomeryMul(xp, zp_inv)
-                    yr := montgomeryMul(yp, zp_inv)
-                }
+                if zp {
+                     let zp_inv := montgomeryModularInverse(zp)
+                     xr := montgomeryMul(xp, zp_inv)
+                     yr := montgomeryMul(yp, zp_inv)
+                 }
             }
 
             /// @notice Doubles a point in projective coordinates in Montgomery form.