opt: uncompress C and Q next to each other

ethereum · Aug 16, 2024 · 1f75663 · 1f75663
1 parent 4073387
commit 1f75663
Showing 1 changed file with 5 additions and 5 deletions.
diff --git a/lib/evmone_precompiles/kzg.cpp b/lib/evmone_precompiles/kzg.cpp
@@ -64,18 +64,18 @@ bool kzg_proof(const std::byte versioned_hash[32], const std::byte z[32], const
     if (ret != blst::BLST_SUCCESS)
         return false;
 
+    blst::blst_p1_affine Q;
+    const auto r2 = blst::blst_p1_uncompress(&Q, reinterpret_cast<const blst::byte*>(proof));
+    if (r2 != blst::BLST_SUCCESS)
+        return false;
+
     blst::blst_p1 P_minus_y;
     // FIXME: add_or_double?
     blst::blst_p1_add_affine(&P_minus_y, &nY, &affine_C);
 
     const auto Pmy = std::bit_cast<blst::P1>(P_minus_y);
     const blst::PT left(blst::P1_Affine{Pmy});
 
-    blst::blst_p1_affine Q;
-    const auto r2 = blst::blst_p1_uncompress(&Q, reinterpret_cast<const blst::byte*>(proof));
-    if (r2 != blst::BLST_SUCCESS)
-        return false;
-
     const blst::PT right(
         std::bit_cast<blst::P1_Affine>(Q), blst::P2_Affine{std::bit_cast<blst::P2>(X_minus_Z)});