Use C++17's [[maybe_unused]] attribute in ART

Bug: 169680875
Test: mmm art
Change-Id: Ic0cc320891c42b07a2b5520a584d2b62052e7235

1 files changed, 9 insertions, 7 deletions

diff --git a/compiler/optimizing/loop_analysis.h b/compiler/optimizing/loop_analysis.h
index cec00fecf4..cd8f00588d 100644
--- a/compiler/optimizing/loop_analysis.h
+++ b/compiler/optimizing/loop_analysis.h
@@ -148,13 +148,15 @@ class ArchNoOptsLoopHelper : public ArenaObject<kArenaAllocOptimization> {
   //
   // Returns 'true' by default, should be overridden by particular target loop helper.
   virtual bool IsLoopNonBeneficialForScalarOpts(
-      LoopAnalysisInfo* loop_analysis_info ATTRIBUTE_UNUSED) const { return true; }
+      [[maybe_unused]] LoopAnalysisInfo* loop_analysis_info) const {
+    return true;
+  }
 
   // Returns optimal scalar unrolling factor for the loop.
   //
   // Returns kNoUnrollingFactor by default, should be overridden by particular target loop helper.
   virtual uint32_t GetScalarUnrollingFactor(
-      const LoopAnalysisInfo* analysis_info ATTRIBUTE_UNUSED) const {
+      [[maybe_unused]] const LoopAnalysisInfo* analysis_info) const {
     return LoopAnalysisInfo::kNoUnrollingFactor;
   }
 
@@ -166,17 +168,17 @@ class ArchNoOptsLoopHelper : public ArenaObject<kArenaAllocOptimization> {
   // Returns whether it is beneficial to fully unroll the loop.
   //
   // Returns 'false' by default, should be overridden by particular target loop helper.
-  virtual bool IsFullUnrollingBeneficial(LoopAnalysisInfo* analysis_info ATTRIBUTE_UNUSED) const {
+  virtual bool IsFullUnrollingBeneficial([[maybe_unused]] LoopAnalysisInfo* analysis_info) const {
     return false;
   }
 
   // Returns optimal SIMD unrolling factor for the loop.
   //
   // Returns kNoUnrollingFactor by default, should be overridden by particular target loop helper.
-  virtual uint32_t GetSIMDUnrollingFactor(HBasicBlock* block ATTRIBUTE_UNUSED,
-                                          int64_t trip_count ATTRIBUTE_UNUSED,
-                                          uint32_t max_peel ATTRIBUTE_UNUSED,
-                                          uint32_t vector_length ATTRIBUTE_UNUSED) const {
+  virtual uint32_t GetSIMDUnrollingFactor([[maybe_unused]] HBasicBlock* block,
+                                          [[maybe_unused]] int64_t trip_count,
+                                          [[maybe_unused]] uint32_t max_peel,
+                                          [[maybe_unused]] uint32_t vector_length) const {
     return LoopAnalysisInfo::kNoUnrollingFactor;
   }