Consistently use 64 bit constants for 64 bit IR instructions.

Thanks to Peter Cawley. #1084
2023-09-21 03:46:33 +02:00
parent 9159289927
commit b8919781d4
4 changed files with 24 additions and 17 deletions
--- a/src/lj_asm_x86.h
+++ b/src/lj_asm_x86.h
@@ -140,7 +140,8 @@ static IRRef asm_fuseabase(ASMState *as, IRRef ref)
    }
  } else if (irb->o == IR_ADD && irref_isk(irb->op2)) {
    /* Fuse base offset (vararg load). */
-    as->mrm.ofs = IR(irb->op2)->i;
+    IRIns *irk = IR(irb->op2);
+    as->mrm.ofs = irk->o == IR_KINT ? irk->i : (int32_t)ir_kint64(irk)->u64;
    return irb->op1;
  }
  return ref;  /* Otherwise use the given array base. */