* @brief 便于调用基本块分割 * * @param flag * @return FunctionPass* */

Return true if the data operand at index \p i directly or indirectly has the attribute \p A. Normal call, invoke or callbr arguments have per operand

doFinalization * * Overwrite FunctionPass method to apply the transformations to the whole * module. This part obfuscate all the always true predic

Determine if the call does not access memory.

Determine whether this data operand is not captured.

Determine if the call does not access or only writes memory.

Determine if the call cannot return.

Determine if the call cannot unwind.

* @brief 修复PHI指令和逃逸变量 * * @param F */

Given a value use iterator, returns the argument that corresponds to it. Iterator must actually correspond to an argument.

Return the pointer to function that is being called.

Return the caller function for this call site.

Given a value use iterator, return the data operand corresponding to it. Iterator must actually correspond to a data operand.

Extract the number of dereferenceable bytes for a call or parameter (0=unknown).

Extract the number of dereferenceable_or_null bytes for a call or parameter (0=unknown).

* @brief * * @param F * @param EncKey * @return GlobalVariable* */

Extract the alignment for a call or parameter (0=unknown).

Extract the byval type for a call or parameter (nullptr=unknown).

Extract the alignment of the return value.

Returns true if this CallSite passes the given Value* as an argument to the called function.

Return true if this function has the given attribute.

Determine if there are is an inalloca argument. Only the last argument can have the inalloca attribute.

Return true if this return value has the given attribute.

Determine whether the passed iterator points to an argument operand.

Determine whether the passed iterator points to a bundle operand.

Determine whether this argument is passed by value.

Determine whether this argument is passed by value or in an alloca.

Return true if a CallInst is enclosed.

Return true if a CallBrInst is enclosed.

Determine if the call is convergent.

Determine whether the passed iterator points to a data operand.

Determine whether this argument is passed in an alloca.

Return true if the callsite is an indirect call.

Return true if a InvokeInst is enclosed. !I.getInt() may also signify a NULL instruction pointer, so check that.

Tests if this call site must be tail call optimized. Only a CallInst can be tail call optimized.

Return true if the call should not be treated as a call to a builtin.

Return true if the call should not be inlined.

辅助作用的函数

Return true if the return value is known to be not null. This may be because it has the nonnull attribute, or because at least one byte is dereference

Return true if the call requires strict floating point semantics.