| /* |
| * Copyright (C) 2010 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. |
| */ |
| |
| /* |
| * Basic block functions, as used by the verifier. (The names were chosen |
| * to avoid conflicts with similar structures used by the compiler.) |
| */ |
| #ifndef _DALVIK_VFYBASICBLOCK |
| #define _DALVIK_VFYBASICBLOCK |
| |
| #include "libdex/InstrUtils.h" |
| #include "PointerSet.h" |
| |
| struct VerifierData; |
| |
| |
| /* |
| * Structure representing a basic block. |
| * |
| * This is used for liveness analysis, which is a reverse-flow algorithm, |
| * so we need to mantain a list of predecessors for each block. |
| */ |
| typedef struct { |
| u4 firstAddr; /* address of first instruction */ |
| u4 lastAddr; /* address of last instruction */ |
| PointerSet* predecessors; /* set of basic blocks that can flow here */ |
| } VfyBasicBlock; |
| |
| /* |
| * Generate a list of basic blocks. |
| */ |
| bool dvmComputeVfyBasicBlocks(struct VerifierData* vdata); |
| |
| /* |
| * Free storage allocated by dvmComputeVfyBasicBlocks. |
| */ |
| void dvmFreeVfyBasicBlocks(struct VerifierData* vdata); |
| |
| #endif /*_DALVIK_VFYBASICBLOCK*/ |