8188131: [PPC] Increase inlining thresholds to the same as other platforms

Reviewed-by: mdoerr, mbaesken

Author: dbriemann

src/hotspot/cpu/ppc/c2_globals_ppc.hpp

@@ -1,6 +1,6 @@
 /*
- * Copyright (c) 2000, 2025, Oracle and/or its affiliates. All rights reserved.
- * Copyright (c) 2012, 2019 SAP SE. All rights reserved.
+ * Copyright (c) 2000, 2026, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2012, 2026 SAP SE. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -44,7 +44,7 @@ define_pd_global(intx, CompileThreshold,             10000);
 
 define_pd_global(intx, OnStackReplacePercentage,     140);
 define_pd_global(intx, ConditionalMoveLimit,         3);
-define_pd_global(intx, FreqInlineSize,               175);
+define_pd_global(intx, FreqInlineSize,               325);
 define_pd_global(intx, MinJumpTableSize,             10);
 define_pd_global(intx, InteriorEntryAlignment,       16);
 define_pd_global(size_t, NewSizeThreadIncrease,      ScaleForWordSize(4*K));

src/hotspot/share/compiler/compilerDefinitions.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2016, 2025, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2016, 2026, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -406,7 +406,7 @@ void CompilerConfig::set_compilation_policy_flags() {
   if (CompilerConfig::is_tiered() && CompilerConfig::is_c2_enabled()) {
 #ifdef COMPILER2
     // Some inlining tuning
-#if defined(X86) || defined(AARCH64) || defined(RISCV64)
+#if defined(X86) || defined(AARCH64) || defined(RISCV64) || defined(PPC64)
     if (FLAG_IS_DEFAULT(InlineSmallCode)) {
       FLAG_SET_DEFAULT(InlineSmallCode, 2500);
     }