1 files changed, 48 insertions, 0 deletions
diff --git a/vm/compiler/Loop.h b/vm/compiler/Loop.h
new file mode 100644
index 0000000..8032093
--- /dev/null
+++ b/vm/compiler/Loop.h
@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef DALVIK_VM_LOOP_H_
+#define DALVIK_VM_LOOP_H_
+
+#include "Dalvik.h"
+#include "CompilerInternals.h"
+
+typedef struct LoopAnalysis {
+    BitVector *isIndVarV;               // length == numSSAReg
+    GrowableList *ivList;               // induction variables
+    GrowableList *arrayAccessInfo;      // hoisted checks for array accesses
+    int numBasicIV;                     // number of basic induction variables
+    int ssaBIV;                         // basic IV in SSA name
+    bool isCountUpLoop;                 // count up or down loop
+    Opcode loopBranchOpcode;            // OP_IF_XXX for the loop back branch
+    int endConditionReg;                // vB in "vA op vB"
+    LIR *branchToBody;                  // branch over to the body from entry
+    LIR *branchToPCR;                   // branch over to the PCR cell
+    bool bodyIsClean;                   // loop body cannot throw any exceptions
+} LoopAnalysis;
+
+bool dvmCompilerFilterLoopBlocks(CompilationUnit *cUnit);
+
+/*
+ * An unexecuted code path may contain unresolved fields or classes. Before we
+ * have a quiet resolver we simply bail out of the loop compilation mode.
+ */
+#define BAIL_LOOP_COMPILATION() if (cUnit->jitMode == kJitLoop) {       \
+                                    cUnit->quitLoopMode = true;         \
+                                    return false;                       \
+                                }
+
+#endif  // DALVIK_VM_LOOP_H_