8302289: RISC-V: Use bgez instruction in arraycopy_simple_check when …

…possible Reviewed-by: fyang, dzhang, luhenry
openjdk · Feb 13, 2023 · 99b6c0e · 99b6c0e · openjdk-notifier · Feb 13, 2023
1 parent 57aef85
commit 99b6c0e
Showing 1 changed file with 3 additions and 4 deletions.
diff --git a/src/hotspot/cpu/riscv/c1_LIRAssembler_arraycopy_riscv.cpp b/src/hotspot/cpu/riscv/c1_LIRAssembler_arraycopy_riscv.cpp
@@ -92,18 +92,17 @@ void LIR_Assembler::arraycopy_simple_check(Register src, Register src_pos, Regis
   // of the arraycopy is an array type, check at runtime if the source or the destination is
   // an instance type.
   if (flags & LIR_OpArrayCopy::type_check) {
+    assert(Klass::_lh_neutral_value == 0, "or replace bgez instructions");
     if (!(flags & LIR_OpArrayCopy::LIR_OpArrayCopy::dst_objarray)) {
       __ load_klass(tmp, dst);
       __ lw(t0, Address(tmp, in_bytes(Klass::layout_helper_offset())));
-      __ mv(t1, Klass::_lh_neutral_value);
-      __ bge(t0, t1, *stub->entry(), /* is_far */ true);
+      __ bgez(t0, *stub->entry(), /* is_far */ true);
     }
 
     if (!(flags & LIR_OpArrayCopy::LIR_OpArrayCopy::src_objarray)) {
       __ load_klass(tmp, src);
       __ lw(t0, Address(tmp, in_bytes(Klass::layout_helper_offset())));
-      __ mv(t1, Klass::_lh_neutral_value);
-      __ bge(t0, t1, *stub->entry(), /* is_far */ true);
+      __ bgez(t0, *stub->entry(), /* is_far */ true);
     }
   }