pipac.git - Pipa programming language

Age	Commit message (Collapse)	Author
2023-04-30	gas: Optimize variable reference on assembly	Johnny Richard
	We were moving the stack data for variable reference to another stack position ending up with two pointer to the same value. // a: i32 = 1; mov $1, -8(%rbp) // b: i32 = a; mov -8(%rbp), %rax mov %rax, -24(%rbp) mov -24(%rbp), %rax mov %rax, -16(%rbp) After this changes, we wont create a new temp space on stack if we don't need it. See bellow the example after the optimization: // a: i32 = 1; mov $1, -8(%rbp) // b: i32 = a; mov -8(%rbp), %rax mov %rax, -16(%rbp) Signed-off-by: Johnny Richard <johnny@johnnyrichard.com> Co-authored-by: Carlos Maniero <carlosmaniero@gmail.com>
2023-04-30	gas: Compile variable expression with scope support	Johnny Richard
	This patch adds the variable compilation and uses a scope (a stack of map) to lookup for identities. Today we use a vector + ref_entry structs in order to achieve the scope implementation. The ref_entry lacks memory management, we are still no sure who will be the owner of the pointer. We also want to replace the scope a hashtable_t type as soon as we get one. Signed-off-by: Johnny Richard <johnny@johnnyrichard.com> Co-authored-by: Carlos Maniero <carlosmaniero@gmail.com>