From d923c47f745a96f5916af766dcb1c7152021b960 Mon Sep 17 00:00:00 2001
From: Anton Romanov <anton.romanov@syntacore.com>
Date: Mon, 19 Feb 2024 14:07:25 +0300
Subject: riscv64: Create InstructionSimplifierRiscv64, ShiftAdd

Create InstructionSimplifierRiscv64 optimization.
Replace Shl (1|2|3) and Add with Riscv64ShiftAdd IR instruction.

By compiling with dex2oat all the methods of applications below I got:
Facebook: 45 cases
TikTok: 26 cases
YouTube: 19 cases of the pattern.

Test: art/test/testrunner/testrunner.py --target --64 --ndebug --optimizing

Change-Id: I88903450d998983bb2a628942112d7518099c3f5
---
 compiler/optimizing/graph_visualizer.cc | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'compiler/optimizing/graph_visualizer.cc')

diff --git a/compiler/optimizing/graph_visualizer.cc b/compiler/optimizing/graph_visualizer.cc
index 1e4f71f9a2..5db251cbd3 100644
--- a/compiler/optimizing/graph_visualizer.cc
+++ b/compiler/optimizing/graph_visualizer.cc
@@ -644,6 +644,12 @@ class HGraphVisualizerPrinter final : public HGraphDelegateVisitor {
   }
 #endif
 
+#if defined(ART_ENABLE_CODEGEN_riscv64)
+  void VisitRiscv64ShiftAdd(HRiscv64ShiftAdd* instruction) override {
+    StartAttributeStream("distance") << instruction->GetDistance();
+  }
+#endif
+
   bool IsPass(const char* name) {
     return strcmp(pass_name_, name) == 0;
   }
-- 
cgit v1.2.3-59-g8ed1b