From b048cb74b742b03eb6dd5f1d6dd49e559f730b36 Mon Sep 17 00:00:00 2001
From: Nicolas Geoffray <ngeoffray@google.com>
Date: Mon, 23 Jan 2017 22:50:24 +0000
Subject: Add per array size allocation entrypoints.

- Update architectures that have fast paths for
  array allocation to use it.
- Will add more fast paths in follow-up CLs.

Test: test-art-target test-art-host.
Change-Id: I138cccd16464a85de22a8ed31c915f876e78fb04
---
 compiler/optimizing/code_generator.cc | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

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

diff --git a/compiler/optimizing/code_generator.cc b/compiler/optimizing/code_generator.cc
index 99427f05da..d68aa51b1b 100644
--- a/compiler/optimizing/code_generator.cc
+++ b/compiler/optimizing/code_generator.cc
@@ -1417,4 +1417,22 @@ void CodeGenerator::EmitJitRoots(uint8_t* code,
   EmitJitRootPatches(code, roots_data);
 }
 
+QuickEntrypointEnum CodeGenerator::GetArrayAllocationEntrypoint(Handle<mirror::Class> array_klass) {
+  ScopedObjectAccess soa(Thread::Current());
+  if (array_klass.Get() == nullptr) {
+    // This can only happen for non-primitive arrays, as primitive arrays can always
+    // be resolved.
+    return kQuickAllocArrayResolved32;
+  }
+
+  switch (array_klass->GetComponentSize()) {
+    case 1: return kQuickAllocArrayResolved8;
+    case 2: return kQuickAllocArrayResolved16;
+    case 4: return kQuickAllocArrayResolved32;
+    case 8: return kQuickAllocArrayResolved64;
+  }
+  LOG(FATAL) << "Unreachable";
+  return kQuickAllocArrayResolved;
+}
+
 }  // namespace art
-- 
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