From ef8da28487f918c38fab3096eaeed572d5ea5b90 Mon Sep 17 00:00:00 2001
From: Kim Barrett <kbarrett@openjdk.org>
Date: Thu, 5 Dec 2024 15:31:43 +0000
Subject: [PATCH] 8345591: [aarch64] macroAssembler_aarch64.cpp compile fails
 ceil_log2 not declared

Reviewed-by: coleenp, alanb, syan
---
 src/hotspot/cpu/aarch64/macroAssembler_aarch64.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/hotspot/cpu/aarch64/macroAssembler_aarch64.cpp b/src/hotspot/cpu/aarch64/macroAssembler_aarch64.cpp
index 66742c1c82e..a836d71205e 100644
--- a/src/hotspot/cpu/aarch64/macroAssembler_aarch64.cpp
+++ b/src/hotspot/cpu/aarch64/macroAssembler_aarch64.cpp
@@ -5305,7 +5305,7 @@ MacroAssembler::KlassDecodeMode MacroAssembler::klass_decode_mode() {
   if (operand_valid_for_logical_immediate(
         /*is32*/false, (uint64_t)CompressedKlassPointers::base())) {
     const size_t range = CompressedKlassPointers::klass_range_end() - CompressedKlassPointers::base();
-    const uint64_t range_mask = right_n_bits(ceil_log2(range));
+    const uint64_t range_mask = right_n_bits(log2i_ceil(range));
     if (((uint64_t)CompressedKlassPointers::base() & range_mask) == 0) {
       return (_klass_decode_mode = KlassDecodeXor);
     }