expr.c File Reference

#include <llvm-c/Core.h>
#include <stdio.h>
#include <stdlib.h>
#include "../llvm.h"

Include dependency graph for expr.c:

Functions
LLVMTypeRef	get_range_struct_type (CodeGenContext *ctx, LLVMTypeRef element_type)
LLVMValueRef	create_range_struct (CodeGenContext *ctx, LLVMValueRef start, LLVMValueRef end)
LLVMValueRef	range_contains (CodeGenContext *ctx, LLVMValueRef range_struct, LLVMValueRef value)
LLVMValueRef	range_length (CodeGenContext *ctx, LLVMValueRef range_struct)
LLVMValueRef	codegen_expr_literal (CodeGenContext *ctx, AstNode *node)
LLVMValueRef	codegen_expr_identifier (CodeGenContext *ctx, AstNode *node)
LLVMValueRef	codegen_expr_unary (CodeGenContext *ctx, AstNode *node)
LLVMValueRef	codegen_expr_call (CodeGenContext *ctx, AstNode *node)
LLVMValueRef	codegen_expr_assignment (CodeGenContext *ctx, AstNode *node)
LLVMValueRef	codegen_expr_array (CodeGenContext *ctx, AstNode *node)
LLVMValueRef	codegen_expr_index (CodeGenContext *ctx, AstNode *node)
LLVMValueRef	codegen_expr_cast (CodeGenContext *ctx, AstNode *node)
LLVMValueRef	codegen_expr_input (CodeGenContext *ctx, AstNode *node)
LLVMValueRef	codegen_expr_system (CodeGenContext *ctx, AstNode *node)
LLVMValueRef	codegen_expr_syscall (CodeGenContext *ctx, AstNode *node)
	Generate LLVM IR for syscall expression.
LLVMValueRef	codegen_expr_sizeof (CodeGenContext *ctx, AstNode *node)
LLVMValueRef	codegen_expr_alloc (CodeGenContext *ctx, AstNode *node)
LLVMValueRef	codegen_expr_free (CodeGenContext *ctx, AstNode *node)
LLVMValueRef	codegen_expr_deref (CodeGenContext *ctx, AstNode *node)
LLVMValueRef	codegen_expr_addr (CodeGenContext *ctx, AstNode *node)

Function Documentation

codegen_expr_addr()

LLVMValueRef codegen_expr_addr	(	CodeGenContext *	ctx,
		AstNode *	node
	)

codegen_expr_alloc()

LLVMValueRef codegen_expr_alloc	(	CodeGenContext *	ctx,
		AstNode *	node
	)

codegen_expr_array()

LLVMValueRef codegen_expr_array	(	CodeGenContext *	ctx,
		AstNode *	node
	)

codegen_expr_assignment()

LLVMValueRef codegen_expr_assignment	(	CodeGenContext *	ctx,
		AstNode *	node
	)

codegen_expr_call()

LLVMValueRef codegen_expr_call	(	CodeGenContext *	ctx,
		AstNode *	node
	)

codegen_expr_cast()

LLVMValueRef codegen_expr_cast	(	CodeGenContext *	ctx,
		AstNode *	node
	)

codegen_expr_deref()

LLVMValueRef codegen_expr_deref	(	CodeGenContext *	ctx,
		AstNode *	node
	)

codegen_expr_free()

LLVMValueRef codegen_expr_free	(	CodeGenContext *	ctx,
		AstNode *	node
	)

codegen_expr_identifier()

LLVMValueRef codegen_expr_identifier	(	CodeGenContext *	ctx,
		AstNode *	node
	)

codegen_expr_index()

LLVMValueRef codegen_expr_index	(	CodeGenContext *	ctx,
		AstNode *	node
	)

codegen_expr_input()

LLVMValueRef codegen_expr_input	(	CodeGenContext *	ctx,
		AstNode *	node
	)

codegen_expr_literal()

LLVMValueRef codegen_expr_literal	(	CodeGenContext *	ctx,
		AstNode *	node
	)

codegen_expr_sizeof()

LLVMValueRef codegen_expr_sizeof	(	CodeGenContext *	ctx,
		AstNode *	node
	)

codegen_expr_syscall()

LLVMValueRef codegen_expr_syscall	(	CodeGenContext *	ctx,
		AstNode *	node
	)

Generate LLVM IR for syscall expression.

Syscall in x86_64 Linux:

• syscall number goes in rax
• arguments go in rdi, rsi, rdx, r10, r8, r9 (in that order)
• return value comes back in rax

We use inline assembly to invoke the syscall instruction.

codegen_expr_system()

LLVMValueRef codegen_expr_system	(	CodeGenContext *	ctx,
		AstNode *	node
	)

codegen_expr_unary()

LLVMValueRef codegen_expr_unary	(	CodeGenContext *	ctx,
		AstNode *	node
	)

create_range_struct()

LLVMValueRef create_range_struct	(	CodeGenContext *	ctx,
		LLVMValueRef	start,
		LLVMValueRef	end
	)

get_range_struct_type()

LLVMTypeRef get_range_struct_type	(	CodeGenContext *	ctx,
		LLVMTypeRef	element_type
	)

range_contains()

LLVMValueRef range_contains	(	CodeGenContext *	ctx,
		LLVMValueRef	range_struct,
		LLVMValueRef	value
	)

range_length()

LLVMValueRef range_length	(	CodeGenContext *	ctx,
		LLVMValueRef	range_struct
	)