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....compiler.used. 3. Added two regression tests for PromoteArrayAllocas pases. 4. Rewrite InitAllocas pass. This pass is originally written as a function pass. Rewrite this pass to Module pass to make the intrinsic function llvm.malloc 5. The customized malloc, calloc, and realloc in safecode/runtime/BBRuntime/AlignedMalloc.cpp could be overrided by system implementation on some environments. Thus I added a __sc_bb_ prefix to these customized heap allocation functions. I also write a module pass to automatically rename all malloc / calloc / realloc to __sc_bb_malloc ... Regression tests are also complete...