Hi, What does the tree in "-ftree-*" refer to in the following optimization flags that are turned on as part of -O1 in gcc? Does the tree refer to an internal GCC data structure? -ftree-bit-ccp -ftree-builtin-call-dce -ftree-ccp -ftree-ch -ftree-copyrename -ftree-dce -ftree-dominator-opts -ftree-dse -ftree-forwprop -ftree-fre -ftree-phiprop -ftree-sra -ftree-pta -ftree-ter Thanks! Jiaqi Tan
