mirror of
https://github.com/Ed94/raddebugger.git
synced 2026-06-14 08:02:23 -07:00
Ryan Fleury
1540 lines
53 KiB
C
1540 lines
53 KiB
C
// Copyright (c) 2024 Epic Games Tools
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// Licensed under the MIT license (https://opensource.org/license/mit/)
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////////////////////////////////
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//~ rjf: Expr Kind Enum Functions
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internal RDI_EvalOp
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e_opcode_from_expr_kind(E_ExprKind kind)
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{
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RDI_EvalOp result = RDI_EvalOp_Stop;
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switch(kind)
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{
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case E_ExprKind_Neg: result = RDI_EvalOp_Neg; break;
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case E_ExprKind_LogNot: result = RDI_EvalOp_LogNot; break;
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case E_ExprKind_BitNot: result = RDI_EvalOp_BitNot; break;
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case E_ExprKind_Mul: result = RDI_EvalOp_Mul; break;
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case E_ExprKind_Div: result = RDI_EvalOp_Div; break;
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case E_ExprKind_Mod: result = RDI_EvalOp_Mod; break;
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case E_ExprKind_Add: result = RDI_EvalOp_Add; break;
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case E_ExprKind_Sub: result = RDI_EvalOp_Sub; break;
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case E_ExprKind_LShift: result = RDI_EvalOp_LShift; break;
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case E_ExprKind_RShift: result = RDI_EvalOp_RShift; break;
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case E_ExprKind_Less: result = RDI_EvalOp_Less; break;
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case E_ExprKind_LsEq: result = RDI_EvalOp_LsEq; break;
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case E_ExprKind_Grtr: result = RDI_EvalOp_Grtr; break;
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case E_ExprKind_GrEq: result = RDI_EvalOp_GrEq; break;
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case E_ExprKind_EqEq: result = RDI_EvalOp_EqEq; break;
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case E_ExprKind_NtEq: result = RDI_EvalOp_NtEq; break;
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case E_ExprKind_BitAnd: result = RDI_EvalOp_BitAnd; break;
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case E_ExprKind_BitXor: result = RDI_EvalOp_BitXor; break;
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case E_ExprKind_BitOr: result = RDI_EvalOp_BitOr; break;
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case E_ExprKind_LogAnd: result = RDI_EvalOp_LogAnd; break;
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case E_ExprKind_LogOr: result = RDI_EvalOp_LogOr; break;
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}
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return result;
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}
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internal B32
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e_expr_kind_is_comparison(E_ExprKind kind)
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{
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B32 result = 0;
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switch(kind)
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{
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default:{}break;
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case E_ExprKind_EqEq:
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case E_ExprKind_NtEq:
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case E_ExprKind_Less:
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case E_ExprKind_Grtr:
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case E_ExprKind_LsEq:
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case E_ExprKind_GrEq:
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{
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result = 1;
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}break;
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}
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return result;
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}
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////////////////////////////////
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//~ rjf: Context Selection Functions (Selection Required For All Subsequent APIs)
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internal E_IRCtx *
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e_selected_ir_ctx(void)
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{
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return e_ir_ctx;
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}
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internal void
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e_select_ir_ctx(E_IRCtx *ctx)
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{
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e_ir_ctx = ctx;
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}
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////////////////////////////////
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//~ rjf: IR-ization Functions
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//- rjf: op list functions
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internal void
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e_oplist_push_op(Arena *arena, E_OpList *list, RDI_EvalOp opcode, E_Value value)
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{
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U16 ctrlbits = rdi_eval_op_ctrlbits_table[opcode];
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U32 p_size = RDI_DECODEN_FROM_CTRLBITS(ctrlbits);
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E_Op *node = push_array_no_zero(arena, E_Op, 1);
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node->opcode = opcode;
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node->value = value;
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SLLQueuePush(list->first, list->last, node);
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list->op_count += 1;
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list->encoded_size += 1 + p_size;
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}
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internal void
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e_oplist_push_uconst(Arena *arena, E_OpList *list, U64 x)
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{
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if(0){}
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else if(x <= 0xFF) { e_oplist_push_op(arena, list, RDI_EvalOp_ConstU8, e_value_u64(x)); }
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else if(x <= 0xFFFF) { e_oplist_push_op(arena, list, RDI_EvalOp_ConstU16, e_value_u64(x)); }
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else if(x <= 0xFFFFFFFF) { e_oplist_push_op(arena, list, RDI_EvalOp_ConstU32, e_value_u64(x)); }
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else { e_oplist_push_op(arena, list, RDI_EvalOp_ConstU64, e_value_u64(x)); }
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}
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internal void
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e_oplist_push_sconst(Arena *arena, E_OpList *list, S64 x)
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{
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if(-0x80 <= x && x <= 0x7F)
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{
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e_oplist_push_op(arena, list, RDI_EvalOp_ConstU8, e_value_u64((U64)x));
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e_oplist_push_op(arena, list, RDI_EvalOp_TruncSigned, e_value_u64(8));
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}
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else if(-0x8000 <= x && x <= 0x7FFF)
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{
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e_oplist_push_op(arena, list, RDI_EvalOp_ConstU16, e_value_u64((U64)x));
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e_oplist_push_op(arena, list, RDI_EvalOp_TruncSigned, e_value_u64(16));
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}
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else if(-0x80000000ll <= x && x <= 0x7FFFFFFFll)
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{
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e_oplist_push_op(arena, list, RDI_EvalOp_ConstU32, e_value_u64((U64)x));
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e_oplist_push_op(arena, list, RDI_EvalOp_TruncSigned, e_value_u64(32));
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}
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else
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{
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e_oplist_push_op(arena, list, RDI_EvalOp_ConstU64, e_value_u64((U64)x));
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}
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}
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internal void
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e_oplist_push_bytecode(Arena *arena, E_OpList *list, String8 bytecode)
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{
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E_Op *node = push_array_no_zero(arena, E_Op, 1);
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node->opcode = E_IRExtKind_Bytecode;
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node->string = bytecode;
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SLLQueuePush(list->first, list->last, node);
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list->op_count += 1;
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list->encoded_size += bytecode.size;
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}
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internal void
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e_oplist_push_set_space(Arena *arena, E_OpList *list, E_Space space)
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{
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E_Op *node = push_array_no_zero(arena, E_Op, 1);
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node->opcode = E_IRExtKind_SetSpace;
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StaticAssert(sizeof(E_Space) <= sizeof(E_Value), space_size_check);
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MemoryCopy(&node->value, &space, sizeof(space));
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SLLQueuePush(list->first, list->last, node);
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list->op_count += 1;
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list->encoded_size += 1 + sizeof(space);
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}
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internal void
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e_oplist_push_string_literal(Arena *arena, E_OpList *list, String8 string)
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{
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RDI_EvalOp opcode = RDI_EvalOp_ConstString;
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U16 ctrlbits = rdi_eval_op_ctrlbits_table[opcode];
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U32 p_size = RDI_DECODEN_FROM_CTRLBITS(ctrlbits);
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E_Op *node = push_array_no_zero(arena, E_Op, 1);
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node->opcode = opcode;
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node->string = string;
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node->value.u64 = Min(string.size, 64);
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SLLQueuePush(list->first, list->last, node);
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list->op_count += 1;
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list->encoded_size += 1 + p_size + node->value.u64;
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}
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internal void
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e_oplist_concat_in_place(E_OpList *dst, E_OpList *to_push)
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{
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if(to_push->first && dst->first)
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{
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dst->last->next = to_push->first;
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dst->last = to_push->last;
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dst->op_count += to_push->op_count;
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dst->encoded_size += to_push->encoded_size;
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}
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else if(!dst->first)
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{
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MemoryCopyStruct(dst, to_push);
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}
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MemoryZeroStruct(to_push);
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}
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//- rjf: ir tree core building helpers
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internal E_IRNode *
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e_push_irnode(Arena *arena, RDI_EvalOp op)
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{
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E_IRNode *n = push_array(arena, E_IRNode, 1);
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n->first = n->last = n->next = &e_irnode_nil;
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n->op = op;
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return n;
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}
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internal void
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e_irnode_push_child(E_IRNode *parent, E_IRNode *child)
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{
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SLLQueuePush_NZ(&e_irnode_nil, parent->first, parent->last, child, next);
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}
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//- rjf: ir subtree building helpers
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internal E_IRNode *
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e_irtree_const_u(Arena *arena, U64 v)
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{
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// rjf: choose op
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RDI_EvalOp op = RDI_EvalOp_ConstU64;
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if (v < 0x100) { op = RDI_EvalOp_ConstU8; }
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else if(v < 0x10000) { op = RDI_EvalOp_ConstU16; }
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else if(v < 0x100000000) { op = RDI_EvalOp_ConstU32; }
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// rjf: build
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E_IRNode *n = e_push_irnode(arena, op);
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n->value.u64 = v;
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return n;
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}
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internal E_IRNode *
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e_irtree_unary_op(Arena *arena, RDI_EvalOp op, RDI_EvalTypeGroup group, E_IRNode *c)
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{
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E_IRNode *n = e_push_irnode(arena, op);
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n->value.u64 = group;
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e_irnode_push_child(n, c);
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return n;
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}
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internal E_IRNode *
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e_irtree_binary_op(Arena *arena, RDI_EvalOp op, RDI_EvalTypeGroup group, E_IRNode *l, E_IRNode *r)
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{
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E_IRNode *n = e_push_irnode(arena, op);
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n->value.u64 = group;
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e_irnode_push_child(n, l);
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e_irnode_push_child(n, r);
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return n;
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}
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internal E_IRNode *
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e_irtree_binary_op_u(Arena *arena, RDI_EvalOp op, E_IRNode *l, E_IRNode *r)
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{
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E_IRNode *n = e_irtree_binary_op(arena, op, RDI_EvalTypeGroup_U, l, r);
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return n;
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}
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internal E_IRNode *
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e_irtree_conditional(Arena *arena, E_IRNode *c, E_IRNode *l, E_IRNode *r)
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{
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E_IRNode *n = e_push_irnode(arena, RDI_EvalOp_Cond);
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e_irnode_push_child(n, c);
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e_irnode_push_child(n, l);
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e_irnode_push_child(n, r);
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return n;
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}
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internal E_IRNode *
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e_irtree_bytecode_no_copy(Arena *arena, String8 bytecode)
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{
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E_IRNode *n = e_push_irnode(arena, E_IRExtKind_Bytecode);
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n->string = bytecode;
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return n;
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}
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internal E_IRNode *
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e_irtree_string_literal(Arena *arena, String8 string)
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{
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E_IRNode *root = e_push_irnode(arena, RDI_EvalOp_ConstString);
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root->string = string;
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return root;
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}
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internal E_IRNode *
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e_irtree_set_space(Arena *arena, E_Space space, E_IRNode *c)
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{
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E_IRNode *root = e_push_irnode(arena, E_IRExtKind_SetSpace);
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StaticAssert(sizeof(E_Space) <= sizeof(E_Value), space_size_check);
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MemoryCopy(&root->value, &space, sizeof(space));
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e_irnode_push_child(root, c);
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return root;
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}
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internal E_IRNode *
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e_irtree_mem_read_type(Arena *arena, E_Space space, E_IRNode *c, E_TypeKey type_key)
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{
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E_IRNode *result = &e_irnode_nil;
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U64 byte_size = e_type_byte_size_from_key(type_key);
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byte_size = Min(64, byte_size);
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// rjf: build the read node
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E_IRNode *read_node = e_push_irnode(arena, RDI_EvalOp_MemRead);
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read_node->value.u64 = byte_size;
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e_irnode_push_child(read_node, c);
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// rjf: build a signed trunc node if needed
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U64 bit_size = byte_size << 3;
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E_IRNode *with_trunc = read_node;
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E_TypeKind kind = e_type_kind_from_key(type_key);
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if(bit_size < 64 && e_type_kind_is_signed(kind))
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{
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with_trunc = e_push_irnode(arena, RDI_EvalOp_TruncSigned);
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with_trunc->value.u64 = bit_size;
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e_irnode_push_child(with_trunc, read_node);
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}
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// rjf: set space for this mem read
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E_IRNode *set_space_node = e_irtree_set_space(arena, space, with_trunc);
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// rjf: fill
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result = set_space_node;
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return result;
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}
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internal E_IRNode *
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e_irtree_convert_lo(Arena *arena, E_IRNode *c, RDI_EvalTypeGroup out, RDI_EvalTypeGroup in)
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{
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E_IRNode *n = e_push_irnode(arena, RDI_EvalOp_Convert);
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n->value.u64 = in | (out << 8);
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e_irnode_push_child(n, c);
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return n;
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}
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internal E_IRNode *
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e_irtree_trunc(Arena *arena, E_IRNode *c, E_TypeKey type_key)
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{
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E_IRNode *result = c;
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U64 byte_size = e_type_byte_size_from_key(type_key);
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if(byte_size < 64)
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{
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RDI_EvalOp op = RDI_EvalOp_Trunc;
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E_TypeKind kind = e_type_kind_from_key(type_key);
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if(e_type_kind_is_signed(kind))
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{
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op = RDI_EvalOp_TruncSigned;
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}
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U64 bit_size = byte_size << 3;
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result = e_push_irnode(arena, op);
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result->value.u64 = bit_size;
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e_irnode_push_child(result, c);
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}
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return result;
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}
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internal E_IRNode *
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e_irtree_convert_hi(Arena *arena, E_IRNode *c, E_TypeKey out, E_TypeKey in)
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{
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E_IRNode *result = c;
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E_TypeKind in_kind = e_type_kind_from_key(in);
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E_TypeKind out_kind = e_type_kind_from_key(out);
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U8 in_group = e_type_group_from_kind(in_kind);
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U8 out_group = e_type_group_from_kind(out_kind);
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U32 conversion_rule = rdi_eval_conversion_kind_from_typegroups(in_group, out_group);
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if(conversion_rule == RDI_EvalConversionKind_Legal)
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{
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result = e_irtree_convert_lo(arena, result, out_group, in_group);
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}
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U64 in_byte_size = e_type_byte_size_from_key(in);
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U64 out_byte_size = e_type_byte_size_from_key(out);
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if(out_byte_size < in_byte_size && e_type_kind_is_integer(out_kind))
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{
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result = e_irtree_trunc(arena, result, out);
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}
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return result;
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}
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internal E_IRNode *
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e_irtree_resolve_to_value(Arena *arena, E_Space from_space, E_Mode from_mode, E_IRNode *tree, E_TypeKey type_key)
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{
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E_IRNode *result = tree;
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if(from_mode == E_Mode_Offset)
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{
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result = e_irtree_mem_read_type(arena, from_space, tree, type_key);
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}
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return result;
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}
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//- rjf: top-level irtree/type extraction
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internal E_IRTreeAndType
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e_irtree_and_type_from_expr(Arena *arena, E_Expr *expr)
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{
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E_IRTreeAndType result = {&e_irnode_nil};
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E_ExprKind kind = expr->kind;
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switch(kind)
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{
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default:{}break;
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//- rjf: references -> just descend to sub-expr
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case E_ExprKind_Ref:
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{
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result = e_irtree_and_type_from_expr(arena, expr->ref);
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}break;
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//- rjf: array indices
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case E_ExprKind_ArrayIndex:
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{
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// rjf: unpack left/right expressions
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E_Expr *exprl = expr->first;
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E_Expr *exprr = exprl->next;
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E_IRTreeAndType l = e_irtree_and_type_from_expr(arena, exprl);
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E_IRTreeAndType r = e_irtree_and_type_from_expr(arena, exprr);
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E_TypeKey l_restype = e_type_unwrap(l.type_key);
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E_TypeKey r_restype = e_type_unwrap(r.type_key);
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E_TypeKind l_restype_kind = e_type_kind_from_key(l_restype);
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E_TypeKind r_restype_kind = e_type_kind_from_key(r_restype);
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if(e_type_kind_is_basic_or_enum(r_restype_kind))
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{
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r_restype = e_type_unwrap_enum(r_restype);
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r_restype_kind = e_type_kind_from_key(r_restype);
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}
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E_TypeKey direct_type = e_type_unwrap(l_restype);
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direct_type = e_type_direct_from_key(direct_type);
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direct_type = e_type_unwrap(direct_type);
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U64 direct_type_size = e_type_byte_size_from_key(direct_type);
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e_msg_list_concat_in_place(&result.msgs, &l.msgs);
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e_msg_list_concat_in_place(&result.msgs, &r.msgs);
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// rjf: bad conditions? -> error if applicable, exit
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if(r.root->op == 0)
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{
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break;
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}
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else if(l_restype_kind != E_TypeKind_Ptr && l_restype_kind != E_TypeKind_Array)
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{
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e_msgf(arena, &result.msgs, E_MsgKind_MalformedInput, exprl->location, "Cannot index into this type.");
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break;
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}
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else if(!e_type_kind_is_integer(r_restype_kind))
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{
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e_msgf(arena, &result.msgs, E_MsgKind_MalformedInput, exprr->location, "Cannot index with this type.");
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break;
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}
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else if(l_restype_kind == E_TypeKind_Ptr && direct_type_size == 0)
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{
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e_msgf(arena, &result.msgs, E_MsgKind_MalformedInput, exprr->location, "Cannot index into pointers of zero-sized types.");
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break;
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}
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|
else if(l_restype_kind == E_TypeKind_Array && direct_type_size == 0)
|
|
{
|
|
e_msgf(arena, &result.msgs, E_MsgKind_MalformedInput, exprr->location, "Cannot index into arrays of zero-sized types.");
|
|
break;
|
|
}
|
|
|
|
// rjf: generate
|
|
E_IRNode *new_tree = &e_irnode_nil;
|
|
{
|
|
switch(l.mode)
|
|
{
|
|
// rjf: offsets -> read from base offset
|
|
default:
|
|
case E_Mode_Null:
|
|
case E_Mode_Offset:
|
|
{
|
|
// rjf: ops to compute the offset
|
|
E_IRNode *offset_tree = e_irtree_resolve_to_value(arena, r.space, r.mode, r.root, r_restype);
|
|
if(direct_type_size > 1)
|
|
{
|
|
E_IRNode *const_tree = e_irtree_const_u(arena, direct_type_size);
|
|
offset_tree = e_irtree_binary_op_u(arena, RDI_EvalOp_Mul, offset_tree, const_tree);
|
|
}
|
|
|
|
// rjf: ops to compute the base offset (resolve to value if addr-of-pointer)
|
|
E_IRNode *base_tree = l.root;
|
|
if(l_restype_kind == E_TypeKind_Ptr && l.mode != E_Mode_Value)
|
|
{
|
|
base_tree = e_irtree_resolve_to_value(arena, l.space, l.mode, base_tree, l_restype);
|
|
}
|
|
|
|
// rjf: ops to compute the final address
|
|
new_tree = e_irtree_binary_op_u(arena, RDI_EvalOp_Add, offset_tree, base_tree);
|
|
}break;
|
|
|
|
// rjf: values -> read from stack value
|
|
case E_Mode_Value:
|
|
{
|
|
// rjf: ops to compute the offset
|
|
E_IRNode *offset_tree = e_irtree_resolve_to_value(arena, r.space, r.mode, r.root, r_restype);
|
|
if(direct_type_size > 1)
|
|
{
|
|
E_IRNode *const_tree = e_irtree_const_u(arena, direct_type_size);
|
|
offset_tree = e_irtree_binary_op_u(arena, RDI_EvalOp_Mul, offset_tree, const_tree);
|
|
}
|
|
|
|
// rjf: ops to push stack value, push offset, + read from stack value
|
|
new_tree = e_push_irnode(arena, RDI_EvalOp_ValueRead);
|
|
new_tree->value.u64 = direct_type_size;
|
|
e_irnode_push_child(new_tree, offset_tree);
|
|
e_irnode_push_child(new_tree, l.root);
|
|
}break;
|
|
}
|
|
}
|
|
|
|
// rjf: fill
|
|
result.root = new_tree;
|
|
result.type_key = direct_type;
|
|
result.mode = l.mode;
|
|
result.space = l.space;
|
|
}break;
|
|
|
|
//- rjf: member accesses
|
|
case E_ExprKind_MemberAccess:
|
|
{
|
|
// rjf: unpack left/right expressions
|
|
E_Expr *exprl = expr->first;
|
|
E_Expr *exprr = exprl->next;
|
|
E_IRTreeAndType l = e_irtree_and_type_from_expr(arena, exprl);
|
|
E_TypeKey l_restype = e_type_unwrap(l.type_key);
|
|
E_TypeKind l_restype_kind = e_type_kind_from_key(l_restype);
|
|
E_TypeKey check_type_key = l_restype;
|
|
E_TypeKind check_type_kind = l_restype_kind;
|
|
if(l_restype_kind == E_TypeKind_Ptr ||
|
|
l_restype_kind == E_TypeKind_LRef ||
|
|
l_restype_kind == E_TypeKind_RRef)
|
|
{
|
|
check_type_key = e_type_unwrap(e_type_direct_from_key(e_type_unwrap(l_restype)));
|
|
check_type_kind = e_type_kind_from_key(check_type_key);
|
|
}
|
|
e_msg_list_concat_in_place(&result.msgs, &l.msgs);
|
|
|
|
// rjf: look up member
|
|
B32 r_found = 0;
|
|
E_TypeKey r_type = zero_struct;
|
|
U64 r_value = 0;
|
|
B32 r_is_constant_value = 0;
|
|
{
|
|
Temp scratch = scratch_begin(&arena, 1);
|
|
E_Member match = e_type_member_from_key_name__cached(check_type_key, exprr->string);
|
|
if(match.kind != E_MemberKind_Null)
|
|
{
|
|
r_found = 1;
|
|
r_type = match.type_key;
|
|
r_value = match.off;
|
|
}
|
|
if(match.kind == E_MemberKind_Null)
|
|
{
|
|
E_Type *type = e_type_from_key(scratch.arena, check_type_key);
|
|
if(type->enum_vals != 0)
|
|
{
|
|
String8 lookup_string = exprr->string;
|
|
String8 lookup_string_append_1 = push_str8f(scratch.arena, "%S_%S", type->name, lookup_string);
|
|
String8 lookup_string_append_2 = push_str8f(scratch.arena, "%S%S", type->name, lookup_string);
|
|
E_EnumVal *enum_val_match = 0;
|
|
for EachIndex(idx, type->count)
|
|
{
|
|
if(str8_match(type->enum_vals[idx].name, lookup_string, 0) ||
|
|
str8_match(type->enum_vals[idx].name, lookup_string_append_1, 0) ||
|
|
str8_match(type->enum_vals[idx].name, lookup_string_append_2, 0))
|
|
{
|
|
enum_val_match = &type->enum_vals[idx];
|
|
break;
|
|
}
|
|
}
|
|
if(enum_val_match != 0)
|
|
{
|
|
r_found = 1;
|
|
r_type = check_type_key;
|
|
r_value = enum_val_match->val;
|
|
r_is_constant_value = 1;
|
|
}
|
|
}
|
|
}
|
|
scratch_end(scratch);
|
|
}
|
|
|
|
// rjf: bad conditions? -> error if applicable, exit
|
|
if(e_type_key_match(e_type_key_zero(), check_type_key))
|
|
{
|
|
break;
|
|
}
|
|
else if(exprr->kind != E_ExprKind_LeafMember)
|
|
{
|
|
e_msgf(arena, &result.msgs, E_MsgKind_MalformedInput, exprl->location, "Expected member name.");
|
|
break;
|
|
}
|
|
else if(!r_found)
|
|
{
|
|
e_msgf(arena, &result.msgs, E_MsgKind_MalformedInput, exprr->location, "Could not find a member named `%S`.", exprr->string);
|
|
break;
|
|
}
|
|
else if(check_type_kind != E_TypeKind_Struct &&
|
|
check_type_kind != E_TypeKind_Class &&
|
|
check_type_kind != E_TypeKind_Union &&
|
|
check_type_kind != E_TypeKind_Enum)
|
|
{
|
|
e_msgf(arena, &result.msgs, E_MsgKind_MalformedInput, exprl->location, "Cannot perform member access on this type.");
|
|
break;
|
|
}
|
|
|
|
// rjf: generate
|
|
{
|
|
// rjf: build tree
|
|
E_IRNode *new_tree = l.root;
|
|
E_Mode mode = l.mode;
|
|
if(l_restype_kind == E_TypeKind_Ptr ||
|
|
l_restype_kind == E_TypeKind_LRef ||
|
|
l_restype_kind == E_TypeKind_RRef)
|
|
{
|
|
new_tree = e_irtree_resolve_to_value(arena, l.space, l.mode, new_tree, l_restype);
|
|
mode = E_Mode_Offset;
|
|
}
|
|
if(r_value != 0 && !r_is_constant_value)
|
|
{
|
|
E_IRNode *const_tree = e_irtree_const_u(arena, r_value);
|
|
new_tree = e_irtree_binary_op_u(arena, RDI_EvalOp_Add, new_tree, const_tree);
|
|
}
|
|
else if(r_is_constant_value)
|
|
{
|
|
new_tree = e_irtree_const_u(arena, r_value);
|
|
mode = E_Mode_Value;
|
|
}
|
|
|
|
// rjf: fill
|
|
result.root = new_tree;
|
|
result.type_key = r_type;
|
|
result.mode = mode;
|
|
result.space = l.space;
|
|
}
|
|
}break;
|
|
|
|
//- rjf: dereference
|
|
case E_ExprKind_Deref:
|
|
{
|
|
// rjf: unpack operand
|
|
E_Expr *r_expr = expr->first;
|
|
E_IRTreeAndType r_tree = e_irtree_and_type_from_expr(arena, r_expr);
|
|
E_TypeKey r_type = e_type_unwrap(r_tree.type_key);
|
|
E_TypeKind r_type_kind = e_type_kind_from_key(r_type);
|
|
E_TypeKey r_type_direct = e_type_direct_from_key(r_type);
|
|
U64 r_type_direct_size = e_type_byte_size_from_key(r_type_direct);
|
|
e_msg_list_concat_in_place(&result.msgs, &r_tree.msgs);
|
|
|
|
// rjf: bad conditions? -> error if applicable, exit
|
|
if(r_tree.root->op == 0)
|
|
{
|
|
break;
|
|
}
|
|
else if(r_type_direct_size == 0 &&
|
|
(r_type_kind == E_TypeKind_Ptr ||
|
|
r_type_kind == E_TypeKind_LRef ||
|
|
r_type_kind == E_TypeKind_RRef))
|
|
{
|
|
e_msgf(arena, &result.msgs, E_MsgKind_MalformedInput, r_expr->location, "Cannot dereference pointers of zero-sized types.");
|
|
break;
|
|
}
|
|
else if(r_type_direct_size == 0 && r_type_kind == E_TypeKind_Array)
|
|
{
|
|
e_msgf(arena, &result.msgs, E_MsgKind_MalformedInput, r_expr->location, "Cannot dereference arrays of zero-sized types.");
|
|
break;
|
|
}
|
|
else if(r_type_kind != E_TypeKind_Array &&
|
|
r_type_kind != E_TypeKind_Ptr &&
|
|
r_type_kind != E_TypeKind_LRef &&
|
|
r_type_kind != E_TypeKind_RRef)
|
|
{
|
|
e_msgf(arena, &result.msgs, E_MsgKind_MalformedInput, r_expr->location, "Cannot dereference this type.");
|
|
break;
|
|
}
|
|
|
|
// rjf: generate
|
|
{
|
|
E_IRNode *new_tree = r_tree.root;
|
|
if(r_tree.mode != E_Mode_Value &&
|
|
(r_type_kind == E_TypeKind_Ptr ||
|
|
r_type_kind == E_TypeKind_LRef ||
|
|
r_type_kind == E_TypeKind_RRef))
|
|
{
|
|
new_tree = e_irtree_resolve_to_value(arena, r_tree.space, r_tree.mode, r_tree.root, r_type);
|
|
}
|
|
result.root = new_tree;
|
|
result.type_key = r_type_direct;
|
|
result.mode = E_Mode_Offset;
|
|
result.space = r_tree.space;
|
|
}
|
|
}break;
|
|
|
|
//- rjf: address-of
|
|
case E_ExprKind_Address:
|
|
{
|
|
// rjf: unpack operand
|
|
E_Expr *r_expr = expr->first;
|
|
E_IRTreeAndType r_tree = e_irtree_and_type_from_expr(arena, r_expr);
|
|
E_TypeKey r_type = r_tree.type_key;
|
|
E_TypeKey r_type_unwrapped = e_type_unwrap(r_type);
|
|
E_TypeKind r_type_unwrapped_kind = e_type_kind_from_key(r_type_unwrapped);
|
|
e_msg_list_concat_in_place(&result.msgs, &r_tree.msgs);
|
|
|
|
// rjf: bad conditions? -> error if applicable, exit
|
|
if(r_tree.root->op == 0)
|
|
{
|
|
break;
|
|
}
|
|
else if(e_type_key_match(e_type_key_zero(), r_type_unwrapped))
|
|
{
|
|
break;
|
|
}
|
|
|
|
// rjf: generate
|
|
result.root = r_tree.root;
|
|
result.type_key = e_type_key_cons_ptr(e_type_state->ctx->primary_module->arch, r_type_unwrapped, 0);
|
|
result.mode = E_Mode_Value;
|
|
result.space = r_tree.space;
|
|
}break;
|
|
|
|
//- rjf: cast
|
|
case E_ExprKind_Cast:
|
|
{
|
|
// rjf: unpack operands
|
|
E_Expr *cast_type_expr = expr->first;
|
|
E_Expr *casted_expr = cast_type_expr->next;
|
|
E_TypeKey cast_type = e_type_from_expr(cast_type_expr);
|
|
E_TypeKind cast_type_kind = e_type_kind_from_key(cast_type);
|
|
U64 cast_type_byte_size = e_type_byte_size_from_key(cast_type);
|
|
E_IRTreeAndType casted_tree = e_irtree_and_type_from_expr(arena, casted_expr);
|
|
e_msg_list_concat_in_place(&result.msgs, &casted_tree.msgs);
|
|
E_TypeKey casted_type = e_type_unwrap(casted_tree.type_key);
|
|
E_TypeKind casted_type_kind = e_type_kind_from_key(casted_type);
|
|
U64 casted_type_byte_size = e_type_byte_size_from_key(casted_type);
|
|
U8 in_group = e_type_group_from_kind(casted_type_kind);
|
|
U8 out_group = e_type_group_from_kind(cast_type_kind);
|
|
RDI_EvalConversionKind conversion_rule = rdi_eval_conversion_kind_from_typegroups(in_group, out_group);
|
|
|
|
// rjf: bad conditions? -> error if applicable, exit
|
|
if(casted_tree.root->op == 0)
|
|
{
|
|
break;
|
|
}
|
|
else if(cast_type_kind == E_TypeKind_Null)
|
|
{
|
|
break;
|
|
}
|
|
else if(conversion_rule != RDI_EvalConversionKind_Noop &&
|
|
conversion_rule != RDI_EvalConversionKind_Legal)
|
|
{
|
|
String8 text = str8_lit("Unknown cast conversion rule.");
|
|
if(conversion_rule < RDI_EvalConversionKind_COUNT)
|
|
{
|
|
text.str = rdi_explanation_string_from_eval_conversion_kind(conversion_rule, &text.size);
|
|
}
|
|
e_msg(arena, &result.msgs, E_MsgKind_MalformedInput, expr->location, text);
|
|
break;
|
|
}
|
|
|
|
// rjf: generate
|
|
{
|
|
E_IRNode *in_tree = e_irtree_resolve_to_value(arena, casted_tree.space, casted_tree.mode, casted_tree.root, casted_type);
|
|
E_IRNode *new_tree = in_tree;
|
|
if(conversion_rule == RDI_EvalConversionKind_Legal)
|
|
{
|
|
new_tree = e_irtree_convert_lo(arena, in_tree, out_group, in_group);
|
|
}
|
|
if(cast_type_byte_size < casted_type_byte_size && e_type_kind_is_integer(cast_type_kind))
|
|
{
|
|
new_tree = e_irtree_trunc(arena, in_tree, cast_type);
|
|
}
|
|
result.root = new_tree;
|
|
result.type_key = cast_type;
|
|
result.mode = E_Mode_Value;
|
|
result.space = casted_tree.space;
|
|
}
|
|
}break;
|
|
|
|
//- rjf: sizeof
|
|
case E_ExprKind_Sizeof:
|
|
{
|
|
// rjf: unpack operand
|
|
E_Expr *r_expr = expr->first;
|
|
E_TypeKey r_type = zero_struct;
|
|
E_Space space = r_expr->space;
|
|
switch(r_expr->kind)
|
|
{
|
|
case E_ExprKind_TypeIdent:
|
|
case E_ExprKind_Ptr:
|
|
case E_ExprKind_Array:
|
|
case E_ExprKind_Func:
|
|
{
|
|
r_type = e_type_from_expr(r_expr);
|
|
}break;
|
|
default:
|
|
{
|
|
E_IRTreeAndType r_tree = e_irtree_and_type_from_expr(arena, r_expr);
|
|
e_msg_list_concat_in_place(&result.msgs, &r_tree.msgs);
|
|
r_type = r_tree.type_key;
|
|
space = r_tree.space;
|
|
}break;
|
|
}
|
|
|
|
// rjf: bad conditions? -> error if applicable, exit
|
|
if(e_type_key_match(r_type, e_type_key_zero()))
|
|
{
|
|
break;
|
|
}
|
|
else if(e_type_kind_from_key(r_type) == E_TypeKind_Null)
|
|
{
|
|
break;
|
|
}
|
|
|
|
// rjf: generate
|
|
{
|
|
U64 r_type_byte_size = e_type_byte_size_from_key(r_type);
|
|
result.root = e_irtree_const_u(arena, r_type_byte_size);
|
|
result.type_key = e_type_key_basic(E_TypeKind_U64);
|
|
result.mode = E_Mode_Value;
|
|
result.space = space;
|
|
}
|
|
}break;
|
|
|
|
//- rjf: typeof
|
|
case E_ExprKind_Typeof:
|
|
{
|
|
// rjf: evaluate operand tree
|
|
E_Expr *r_expr = expr->first;
|
|
E_IRTreeAndType r_tree = e_irtree_and_type_from_expr(arena, r_expr);
|
|
e_msg_list_concat_in_place(&result.msgs, &r_tree.msgs);
|
|
|
|
// rjf: fill output
|
|
result.root = e_irtree_const_u(arena, 0);
|
|
result.type_key = r_tree.type_key;
|
|
result.mode = E_Mode_Null;
|
|
result.space = r_tree.space;
|
|
}break;
|
|
|
|
//- rjf: byteswap
|
|
case E_ExprKind_ByteSwap:
|
|
{
|
|
// rjf: unpack operand
|
|
E_Expr *r_expr = expr->first;
|
|
E_IRTreeAndType r_tree = e_irtree_and_type_from_expr(arena, r_expr);
|
|
e_msg_list_concat_in_place(&result.msgs, &r_tree.msgs);
|
|
E_TypeKey r_type = e_type_unwrap(r_tree.type_key);
|
|
E_TypeKind r_type_kind = e_type_kind_from_key(r_type);
|
|
U64 r_type_size = e_type_byte_size_from_key(r_type);
|
|
E_Space space = r_tree.space;
|
|
|
|
// rjf: bad conditions? -> error if applicable, exit
|
|
if(!e_type_kind_is_integer(r_type_kind) || (r_type_size != 8 && r_type_size != 4 && r_type_size != 2))
|
|
{
|
|
e_msgf(arena, &result.msgs, E_MsgKind_MalformedInput, expr->location, "Byteswapping this type is not supported.");
|
|
break;
|
|
}
|
|
|
|
// rjf: generate
|
|
{
|
|
E_IRNode *node = e_push_irnode(arena, RDI_EvalOp_ByteSwap);
|
|
E_IRNode *rhs = e_irtree_resolve_to_value(arena, space, r_tree.mode, r_tree.root, r_type);
|
|
e_irnode_push_child(node, rhs);
|
|
node->value.u64 = r_type_size;
|
|
result.root = node;
|
|
result.mode = E_Mode_Value;
|
|
result.space = space;
|
|
result.type_key = r_type;
|
|
}
|
|
}break;
|
|
|
|
//- rjf: unary operations
|
|
case E_ExprKind_Pos:
|
|
{
|
|
result = e_irtree_and_type_from_expr(arena, expr->first);
|
|
}break;
|
|
case E_ExprKind_Neg:
|
|
case E_ExprKind_LogNot:
|
|
case E_ExprKind_BitNot:
|
|
{
|
|
// rjf: unpack operand
|
|
E_Expr *r_expr = expr->first;
|
|
E_IRTreeAndType r_tree = e_irtree_and_type_from_expr(arena, r_expr);
|
|
E_TypeKey r_type = e_type_unwrap(r_tree.type_key);
|
|
E_TypeKind r_type_kind = e_type_kind_from_key(r_type);
|
|
RDI_EvalTypeGroup r_type_group = e_type_group_from_kind(r_type_kind);
|
|
E_TypeKey r_type_promoted = e_type_promote(r_type);
|
|
RDI_EvalOp op = e_opcode_from_expr_kind(kind);
|
|
e_msg_list_concat_in_place(&result.msgs, &r_tree.msgs);
|
|
|
|
// rjf: bad conditions? -> error if applicable, exit
|
|
if(r_tree.root->op == 0)
|
|
{
|
|
break;
|
|
}
|
|
else if(!rdi_eval_op_typegroup_are_compatible(op, r_type_group))
|
|
{
|
|
e_msgf(arena, &result.msgs, E_MsgKind_MalformedInput, expr->location, "Cannot use this operator on this type.");
|
|
break;
|
|
}
|
|
|
|
// rjf: generate
|
|
{
|
|
E_IRNode *in_tree = e_irtree_resolve_to_value(arena, r_tree.space, r_tree.mode, r_tree.root, r_type);
|
|
in_tree = e_irtree_convert_hi(arena, in_tree, r_type_promoted, r_type);
|
|
E_IRNode *new_tree = e_irtree_unary_op(arena, op, r_type_group, in_tree);
|
|
result.root = new_tree;
|
|
result.type_key = r_type_promoted;
|
|
result.mode = E_Mode_Value;
|
|
result.space = r_tree.space;
|
|
}
|
|
}break;
|
|
|
|
//- rjf: binary operations
|
|
case E_ExprKind_Mul:
|
|
case E_ExprKind_Div:
|
|
case E_ExprKind_Mod:
|
|
case E_ExprKind_Add:
|
|
case E_ExprKind_Sub:
|
|
case E_ExprKind_LShift:
|
|
case E_ExprKind_RShift:
|
|
case E_ExprKind_Less:
|
|
case E_ExprKind_LsEq:
|
|
case E_ExprKind_Grtr:
|
|
case E_ExprKind_GrEq:
|
|
case E_ExprKind_EqEq:
|
|
case E_ExprKind_NtEq:
|
|
case E_ExprKind_BitAnd:
|
|
case E_ExprKind_BitXor:
|
|
case E_ExprKind_BitOr:
|
|
case E_ExprKind_LogAnd:
|
|
case E_ExprKind_LogOr:
|
|
{
|
|
// rjf: unpack operands
|
|
RDI_EvalOp op = e_opcode_from_expr_kind(kind);
|
|
B32 is_comparison = e_expr_kind_is_comparison(kind);
|
|
E_Expr *l_expr = expr->first;
|
|
E_Expr *r_expr = l_expr->next;
|
|
E_IRTreeAndType l_tree = e_irtree_and_type_from_expr(arena, l_expr);
|
|
E_IRTreeAndType r_tree = e_irtree_and_type_from_expr(arena, r_expr);
|
|
e_msg_list_concat_in_place(&result.msgs, &l_tree.msgs);
|
|
e_msg_list_concat_in_place(&result.msgs, &r_tree.msgs);
|
|
E_TypeKey l_type = e_type_unwrap_enum(e_type_unwrap(l_tree.type_key));
|
|
E_TypeKey r_type = e_type_unwrap_enum(e_type_unwrap(r_tree.type_key));
|
|
E_TypeKind l_type_kind = e_type_kind_from_key(l_type);
|
|
E_TypeKind r_type_kind = e_type_kind_from_key(r_type);
|
|
if(l_type.kind == E_TypeKeyKind_Reg)
|
|
{
|
|
l_type_kind = E_TypeKind_U64;
|
|
l_type = e_type_key_basic(l_type_kind);
|
|
}
|
|
if(r_type.kind == E_TypeKeyKind_Reg)
|
|
{
|
|
r_type_kind = E_TypeKind_U64;
|
|
r_type = e_type_key_basic(r_type_kind);
|
|
}
|
|
B32 l_is_pointer = (l_type_kind == E_TypeKind_Ptr);
|
|
B32 l_is_decay = (l_type_kind == E_TypeKind_Array && l_tree.mode == E_Mode_Offset);
|
|
B32 l_is_pointer_like = (l_is_pointer || l_is_decay);
|
|
B32 r_is_pointer = (r_type_kind == E_TypeKind_Ptr);
|
|
B32 r_is_decay = (r_type_kind == E_TypeKind_Array && r_tree.mode == E_Mode_Offset);
|
|
B32 r_is_pointer_like = (r_is_pointer || r_is_decay);
|
|
RDI_EvalTypeGroup l_type_group = e_type_group_from_kind(l_type_kind);
|
|
RDI_EvalTypeGroup r_type_group = e_type_group_from_kind(r_type_kind);
|
|
|
|
// rjf: bad conditions? -> error if applicable, exit
|
|
if(l_tree.root->op == 0 || r_tree.root->op == 0)
|
|
{
|
|
break;
|
|
}
|
|
|
|
// rjf: determine arithmetic path
|
|
#define E_ArithPath_Normal 0
|
|
#define E_ArithPath_PtrAdd 1
|
|
#define E_ArithPath_PtrSub 2
|
|
#define E_ArithPath_PtrArrayCompare 3
|
|
B32 ptr_arithmetic_mul_rptr = 0;
|
|
U32 arith_path = E_ArithPath_Normal;
|
|
if(kind == E_ExprKind_Add)
|
|
{
|
|
if(l_is_pointer_like && e_type_kind_is_integer(r_type_kind))
|
|
{
|
|
arith_path = E_ArithPath_PtrAdd;
|
|
}
|
|
if(l_is_pointer_like && e_type_kind_is_integer(l_type_kind))
|
|
{
|
|
arith_path = E_ArithPath_PtrAdd;
|
|
ptr_arithmetic_mul_rptr = 1;
|
|
}
|
|
}
|
|
else if(kind == E_ExprKind_Sub)
|
|
{
|
|
if(l_is_pointer_like && e_type_kind_is_integer(r_type_kind))
|
|
{
|
|
arith_path = E_ArithPath_PtrAdd;
|
|
}
|
|
if(l_is_pointer_like && r_is_pointer_like)
|
|
{
|
|
E_TypeKey l_type_direct = e_type_unwrap(e_type_direct_from_key(e_type_unwrap(l_type)));
|
|
E_TypeKey r_type_direct = e_type_unwrap(e_type_direct_from_key(e_type_unwrap(r_type)));
|
|
U64 l_type_direct_byte_size = e_type_byte_size_from_key(l_type_direct);
|
|
U64 r_type_direct_byte_size = e_type_byte_size_from_key(r_type_direct);
|
|
if(l_type_direct_byte_size == r_type_direct_byte_size)
|
|
{
|
|
arith_path = E_ArithPath_PtrSub;
|
|
}
|
|
}
|
|
}
|
|
else if(kind == E_ExprKind_EqEq)
|
|
{
|
|
if(l_type_kind == E_TypeKind_Array && (r_type_kind == E_TypeKind_Ptr || r_is_decay))
|
|
{
|
|
arith_path = E_ArithPath_PtrArrayCompare;
|
|
}
|
|
if(r_type_kind == E_TypeKind_Array && (l_type_kind == E_TypeKind_Ptr || l_is_decay))
|
|
{
|
|
arith_path = E_ArithPath_PtrArrayCompare;
|
|
}
|
|
}
|
|
|
|
// rjf: generate according to arithmetic path
|
|
switch(arith_path)
|
|
{
|
|
//- rjf: normal arithmetic
|
|
case E_ArithPath_Normal:
|
|
{
|
|
// rjf: bad conditions? -> error if applicable, exit
|
|
if(!rdi_eval_op_typegroup_are_compatible(op, l_type_group) ||
|
|
!rdi_eval_op_typegroup_are_compatible(op, r_type_group))
|
|
{
|
|
e_msgf(arena, &result.msgs, E_MsgKind_MalformedInput, expr->location, "Cannot use this operator on this type.");
|
|
break;
|
|
}
|
|
|
|
// rjf: generate
|
|
{
|
|
E_TypeKey final_type_key = is_comparison ? e_type_key_basic(E_TypeKind_Bool) : l_type;
|
|
E_IRNode *l_value_tree = e_irtree_resolve_to_value(arena, l_tree.space, l_tree.mode, l_tree.root, l_type);
|
|
E_IRNode *r_value_tree = e_irtree_resolve_to_value(arena, r_tree.space, r_tree.mode, r_tree.root, r_type);
|
|
l_value_tree = e_irtree_convert_hi(arena, l_value_tree, l_type, l_type);
|
|
r_value_tree = e_irtree_convert_hi(arena, r_value_tree, l_type, r_type);
|
|
E_IRNode *new_tree = e_irtree_binary_op(arena, op, l_type_group, l_value_tree, r_value_tree);
|
|
result.root = new_tree;
|
|
result.type_key = final_type_key;
|
|
result.mode = E_Mode_Value;
|
|
result.space = l_tree.space;
|
|
E_Space zero_space = {0};
|
|
if(MemoryMatchStruct(&result.space, &zero_space))
|
|
{
|
|
result.space = r_tree.space;
|
|
}
|
|
}
|
|
}break;
|
|
|
|
//- rjf: pointer addition
|
|
case E_ArithPath_PtrAdd:
|
|
{
|
|
// rjf: map l/r to ptr/int
|
|
E_IRTreeAndType *ptr_tree = &l_tree;
|
|
E_IRTreeAndType *int_tree = &r_tree;
|
|
B32 ptr_is_decay = l_is_decay;
|
|
if(ptr_arithmetic_mul_rptr)
|
|
{
|
|
ptr_tree = &r_tree;
|
|
int_tree = &l_tree;
|
|
ptr_is_decay = r_is_decay;
|
|
}
|
|
|
|
// rjf: unpack type
|
|
E_TypeKey direct_type = e_type_unwrap(e_type_direct_from_key(e_type_unwrap(ptr_tree->type_key)));
|
|
U64 direct_type_size = e_type_byte_size_from_key(direct_type);
|
|
|
|
// rjf: generate
|
|
{
|
|
E_IRNode *ptr_root = ptr_tree->root;
|
|
if(!ptr_is_decay)
|
|
{
|
|
ptr_root = e_irtree_resolve_to_value(arena, ptr_tree->space, ptr_tree->mode, ptr_root, ptr_tree->type_key);
|
|
}
|
|
E_IRNode *int_root = int_tree->root;
|
|
int_root = e_irtree_resolve_to_value(arena, int_tree->space, int_tree->mode, int_root, int_tree->type_key);
|
|
if(direct_type_size > 1)
|
|
{
|
|
E_IRNode *const_root = e_irtree_const_u(arena, direct_type_size);
|
|
int_root = e_irtree_binary_op_u(arena, RDI_EvalOp_Mul, int_root, const_root);
|
|
}
|
|
E_TypeKey ptr_type = ptr_tree->type_key;
|
|
if(ptr_is_decay)
|
|
{
|
|
ptr_type = e_type_key_cons_ptr(e_type_state->ctx->primary_module->arch, direct_type, 0);
|
|
}
|
|
E_IRNode *new_root = e_irtree_binary_op_u(arena, op, ptr_root, int_root);
|
|
result.root = new_root;
|
|
result.type_key = ptr_type;
|
|
result.mode = E_Mode_Value;
|
|
result.space = l_tree.space;
|
|
E_Space zero_space = {0};
|
|
if(MemoryMatchStruct(&result.space, &zero_space))
|
|
{
|
|
result.space = r_tree.space;
|
|
}
|
|
}
|
|
}break;
|
|
|
|
//- rjf: pointer subtraction
|
|
case E_ArithPath_PtrSub:
|
|
{
|
|
// rjf: unpack type
|
|
E_TypeKey direct_type = e_type_unwrap(e_type_direct_from_key(e_type_unwrap(l_type)));
|
|
U64 direct_type_size = e_type_byte_size_from_key(direct_type);
|
|
|
|
// rjf: generate
|
|
E_IRNode *l_root = l_tree.root;
|
|
E_IRNode *r_root = r_tree.root;
|
|
if(!l_is_decay)
|
|
{
|
|
l_root = e_irtree_resolve_to_value(arena, l_tree.space, l_tree.mode, l_root, l_type);
|
|
}
|
|
if(!r_is_decay)
|
|
{
|
|
r_root = e_irtree_resolve_to_value(arena, r_tree.space, r_tree.mode, r_root, r_type);
|
|
}
|
|
E_IRNode *op_tree = e_irtree_binary_op_u(arena, op, l_root, r_root);
|
|
E_IRNode *new_tree = op_tree;
|
|
if(direct_type_size > 1)
|
|
{
|
|
E_IRNode *const_tree = e_irtree_const_u(arena, direct_type_size);
|
|
new_tree = e_irtree_binary_op_u(arena, RDI_EvalOp_Div, new_tree, const_tree);
|
|
}
|
|
result.root = new_tree;
|
|
result.type_key = e_type_key_basic(E_TypeKind_U64);
|
|
result.mode = E_Mode_Value;
|
|
result.space = l_tree.space;
|
|
E_Space zero_space = {0};
|
|
if(MemoryMatchStruct(&result.space, &zero_space))
|
|
{
|
|
result.space = r_tree.space;
|
|
}
|
|
}break;
|
|
|
|
//- rjf: pointer array comparison
|
|
case E_ArithPath_PtrArrayCompare:
|
|
{
|
|
// rjf: map l/r to pointer/array
|
|
B32 ptr_is_decay = l_is_decay;
|
|
E_IRTreeAndType *ptr_tree = &l_tree;
|
|
E_IRTreeAndType *arr_tree = &r_tree;
|
|
if(l_type_kind == E_TypeKind_Array && l_tree.mode == E_Mode_Value)
|
|
{
|
|
ptr_is_decay = r_is_decay;
|
|
ptr_tree = &r_tree;
|
|
arr_tree = &l_tree;
|
|
}
|
|
|
|
// rjf: resolve pointer to value, sized same as array
|
|
E_IRNode *ptr_root = ptr_tree->root;
|
|
E_IRNode *arr_root = arr_tree->root;
|
|
if(!ptr_is_decay)
|
|
{
|
|
ptr_root = e_irtree_resolve_to_value(arena, ptr_tree->space, ptr_tree->mode, ptr_tree->root, ptr_tree->type_key);
|
|
}
|
|
|
|
// rjf: read from pointer into value, to compare with array
|
|
E_IRNode *mem_root = e_irtree_mem_read_type(arena, ptr_tree->space, ptr_root, arr_tree->type_key);
|
|
|
|
// rjf: generate
|
|
result.root = e_irtree_binary_op(arena, op, RDI_EvalTypeGroup_Other, mem_root, arr_root);
|
|
result.type_key = e_type_key_basic(E_TypeKind_Bool);
|
|
result.mode = E_Mode_Value;
|
|
result.space = ptr_tree->space;
|
|
E_Space zero_space = {0};
|
|
if(MemoryMatchStruct(&result.space, &zero_space))
|
|
{
|
|
result.space = arr_tree->space;
|
|
}
|
|
}break;
|
|
}
|
|
}break;
|
|
|
|
//- rjf: ternary operators
|
|
case E_ExprKind_Ternary:
|
|
{
|
|
// rjf: unpack operands
|
|
E_Expr *c_expr = expr->first;
|
|
E_Expr *l_expr = c_expr->next;
|
|
E_Expr *r_expr = l_expr->next;
|
|
E_IRTreeAndType c_tree = e_irtree_and_type_from_expr(arena, c_expr);
|
|
E_IRTreeAndType l_tree = e_irtree_and_type_from_expr(arena, l_expr);
|
|
E_IRTreeAndType r_tree = e_irtree_and_type_from_expr(arena, r_expr);
|
|
e_msg_list_concat_in_place(&result.msgs, &c_tree.msgs);
|
|
e_msg_list_concat_in_place(&result.msgs, &l_tree.msgs);
|
|
e_msg_list_concat_in_place(&result.msgs, &r_tree.msgs);
|
|
E_TypeKey c_type = e_type_unwrap(c_tree.type_key);
|
|
E_TypeKey l_type = e_type_unwrap(l_tree.type_key);
|
|
E_TypeKey r_type = e_type_unwrap(r_tree.type_key);
|
|
E_TypeKind c_type_kind = e_type_kind_from_key(c_type);
|
|
E_TypeKind l_type_kind = e_type_kind_from_key(l_type);
|
|
E_TypeKind r_type_kind = e_type_kind_from_key(r_type);
|
|
E_TypeKey result_type = l_type;
|
|
|
|
// rjf: bad conditions? -> error if applicable, exit
|
|
if(c_tree.root->op == 0 || l_tree.root->op == 0 || r_tree.root->op == 0)
|
|
{
|
|
break;
|
|
}
|
|
else if(!e_type_kind_is_integer(c_type_kind) && c_type_kind != E_TypeKind_Bool)
|
|
{
|
|
e_msgf(arena, &result.msgs, E_MsgKind_MalformedInput, expr->location, "Conditional term must be an integer or boolean type.");
|
|
}
|
|
else if(!e_type_match(l_type, r_type))
|
|
{
|
|
e_msgf(arena, &result.msgs, E_MsgKind_MalformedInput, expr->location, "Left and right terms must have matching types.");
|
|
}
|
|
|
|
// rjf: generate
|
|
{
|
|
E_IRNode *c_value_tree = e_irtree_resolve_to_value(arena, c_tree.space, c_tree.mode, c_tree.root, c_type);
|
|
E_IRNode *l_value_tree = e_irtree_resolve_to_value(arena, l_tree.space, l_tree.mode, l_tree.root, l_type);
|
|
E_IRNode *r_value_tree = e_irtree_resolve_to_value(arena, r_tree.space, r_tree.mode, r_tree.root, r_type);
|
|
l_value_tree = e_irtree_convert_hi(arena, l_value_tree, result_type, l_type);
|
|
r_value_tree = e_irtree_convert_hi(arena, r_value_tree, result_type, r_type);
|
|
E_IRNode *new_tree = e_irtree_conditional(arena, c_value_tree, l_value_tree, r_value_tree);
|
|
result.root = new_tree;
|
|
result.type_key = result_type;
|
|
result.mode = E_Mode_Value;
|
|
result.space = l_expr->space;
|
|
E_Space zero_space = {0};
|
|
if(MemoryMatchStruct(&result.space, &zero_space))
|
|
{
|
|
result.space = r_expr->space;
|
|
}
|
|
}
|
|
}break;
|
|
|
|
//- rjf: leaf bytecode
|
|
case E_ExprKind_LeafBytecode:
|
|
{
|
|
E_IRNode *new_tree = e_irtree_bytecode_no_copy(arena, expr->bytecode);
|
|
E_TypeKey final_type_key = expr->type_key;
|
|
result.root = new_tree;
|
|
result.type_key = final_type_key;
|
|
result.mode = expr->mode;
|
|
result.space = expr->space;
|
|
}break;
|
|
|
|
//- rjf: (unexpected) leaf member
|
|
case E_ExprKind_LeafMember:
|
|
{
|
|
e_msgf(arena, &result.msgs, E_MsgKind_MalformedInput, expr->location, "(internal) Leaf member not expected here.");
|
|
}break;
|
|
|
|
//- rjf: leaf string literal
|
|
case E_ExprKind_LeafStringLiteral:
|
|
{
|
|
String8 string = expr->string;
|
|
E_TypeKey type_key = e_type_key_cons_array(e_type_key_basic(E_TypeKind_UChar8), string.size);
|
|
E_IRNode *new_tree = e_irtree_string_literal(arena, string);
|
|
result.root = new_tree;
|
|
result.type_key = type_key;
|
|
result.mode = E_Mode_Value;
|
|
}break;
|
|
|
|
//- rjf: leaf bools
|
|
case E_ExprKind_LeafBool:
|
|
{
|
|
result.root = e_irtree_const_u(arena, expr->value.u64);
|
|
result.type_key = expr->type_key;
|
|
result.mode = E_Mode_Value;
|
|
}break;
|
|
|
|
//- rjf: leaf U64s
|
|
case E_ExprKind_LeafU64:
|
|
{
|
|
U64 val = expr->value.u64;
|
|
E_IRNode *new_tree = e_irtree_const_u(arena, val);
|
|
E_TypeKey type_key = zero_struct;
|
|
if(0){}
|
|
else if(val <= max_S32){type_key = e_type_key_basic(E_TypeKind_S32);}
|
|
else if(val <= max_S64){type_key = e_type_key_basic(E_TypeKind_S64);}
|
|
else {type_key = e_type_key_basic(E_TypeKind_U64);}
|
|
result.root = new_tree;
|
|
result.type_key = type_key;
|
|
result.mode = E_Mode_Value;
|
|
}break;
|
|
|
|
//- rjf: leaf F64s
|
|
case E_ExprKind_LeafF64:
|
|
{
|
|
U64 val = expr->value.u64;
|
|
E_IRNode *new_tree = e_irtree_const_u(arena, val);
|
|
result.root = new_tree;
|
|
result.type_key = e_type_key_basic(E_TypeKind_F64);
|
|
result.mode = E_Mode_Value;
|
|
}break;
|
|
|
|
//- rjf: leaf F32s
|
|
case E_ExprKind_LeafF32:
|
|
{
|
|
U32 val = expr->value.u32;
|
|
E_IRNode *new_tree = e_irtree_const_u(arena, val);
|
|
result.root = new_tree;
|
|
result.type_key = e_type_key_basic(E_TypeKind_F32);
|
|
result.mode = E_Mode_Value;
|
|
}break;
|
|
|
|
//- rjf: leaf identifiers
|
|
case E_ExprKind_LeafIdent:
|
|
{
|
|
E_Expr *macro_expr = e_string2expr_lookup(e_ir_ctx->macro_map, expr->string);
|
|
if(macro_expr == &e_expr_nil)
|
|
{
|
|
e_msgf(arena, &result.msgs, E_MsgKind_ResolutionFailure, expr->location, "`%S` could not be found.", expr->string);
|
|
}
|
|
else
|
|
{
|
|
e_string2expr_map_inc_poison(e_ir_ctx->macro_map, expr->string);
|
|
result = e_irtree_and_type_from_expr(arena, macro_expr);
|
|
e_string2expr_map_dec_poison(e_ir_ctx->macro_map, expr->string);
|
|
}
|
|
}break;
|
|
|
|
//- rjf: leaf offsets
|
|
case E_ExprKind_LeafOffset:
|
|
{
|
|
E_IRNode *new_tree = e_push_irnode(arena, RDI_EvalOp_ConstU64);
|
|
new_tree->value.u64 = expr->value.u64;
|
|
result.root = new_tree;
|
|
result.type_key = expr->type_key;
|
|
result.mode = E_Mode_Offset;
|
|
result.space = expr->space;
|
|
}break;
|
|
|
|
//- rjf: leaf file paths
|
|
case E_ExprKind_LeafFilePath:
|
|
{
|
|
U128 key = fs_key_from_path_range(expr->string, r1u64(0, max_U64));
|
|
E_Space space = {E_SpaceKind_FileSystem, .u128 = key};
|
|
U64 size = fs_size_from_path(expr->string);
|
|
E_IRNode *base_offset = e_irtree_const_u(arena, 0);
|
|
E_IRNode *set_space = e_irtree_set_space(arena, space, base_offset);
|
|
result.root = set_space;
|
|
result.type_key = e_type_key_cons_array(e_type_key_basic(E_TypeKind_U8), size);
|
|
result.mode = E_Mode_Offset;
|
|
result.space = space;
|
|
}break;
|
|
|
|
//- rjf: types
|
|
case E_ExprKind_TypeIdent:
|
|
{
|
|
result.root = e_irtree_const_u(arena, 0);
|
|
result.type_key = expr->type_key;
|
|
result.mode = E_Mode_Null;
|
|
result.space = expr->space;
|
|
}break;
|
|
|
|
//- rjf: (unexpected) type expressions
|
|
case E_ExprKind_Ptr:
|
|
case E_ExprKind_Array:
|
|
case E_ExprKind_Func:
|
|
{
|
|
e_msgf(arena, &result.msgs, E_MsgKind_MalformedInput, expr->location, "Type expression not expected.");
|
|
}break;
|
|
|
|
//- rjf: definitions
|
|
case E_ExprKind_Define:
|
|
{
|
|
E_Expr *lhs = expr->first;
|
|
E_Expr *rhs = lhs->next;
|
|
result = e_irtree_and_type_from_expr(arena, rhs);
|
|
if(lhs->kind != E_ExprKind_LeafIdent)
|
|
{
|
|
e_msgf(arena, &result.msgs, E_MsgKind_MalformedInput, expr->location, "Left side of assignment must be an unused identifier.");
|
|
}
|
|
}break;
|
|
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
//- rjf: irtree -> linear ops/bytecode
|
|
|
|
internal void
|
|
e_append_oplist_from_irtree(Arena *arena, E_IRNode *root, E_OpList *out)
|
|
{
|
|
U32 op = root->op;
|
|
switch(op)
|
|
{
|
|
case RDI_EvalOp_Stop:
|
|
case RDI_EvalOp_Skip:
|
|
{
|
|
// TODO: error - invalid ir-tree op
|
|
}break;
|
|
|
|
case E_IRExtKind_Bytecode:
|
|
{
|
|
e_oplist_push_bytecode(arena, out, root->string);
|
|
}break;
|
|
|
|
case E_IRExtKind_SetSpace:
|
|
{
|
|
E_Space space = {0};
|
|
MemoryCopy(&space, &root->value, sizeof(space));
|
|
e_oplist_push_set_space(arena, out, space);
|
|
for(E_IRNode *child = root->first;
|
|
child != &e_irnode_nil;
|
|
child = child->next)
|
|
{
|
|
e_append_oplist_from_irtree(arena, child, out);
|
|
}
|
|
|
|
}break;
|
|
|
|
case RDI_EvalOp_Cond:
|
|
{
|
|
// rjf: generate oplists for each child
|
|
E_OpList prt_cond = e_oplist_from_irtree(arena, root->first);
|
|
E_OpList prt_left = e_oplist_from_irtree(arena, root->first->next);
|
|
E_OpList prt_right = e_oplist_from_irtree(arena, root->first->next->next);
|
|
|
|
// rjf: put together like so:
|
|
// 1. <prt_cond> , Op_Cond (sizeof(2))
|
|
// 2. <prt_right>, Op_Skip (sizeof(3))
|
|
// 3. <ptr_left>
|
|
|
|
// rjf: modify prt_right in place to create step 2
|
|
e_oplist_push_op(arena, &prt_right, RDI_EvalOp_Skip, e_value_u64(prt_left.encoded_size));
|
|
|
|
// rjf: merge 1 into out
|
|
e_oplist_concat_in_place(out, &prt_cond);
|
|
e_oplist_push_op(arena, out, RDI_EvalOp_Cond, e_value_u64(prt_right.encoded_size));
|
|
|
|
// rjf: merge 2 into out
|
|
e_oplist_concat_in_place(out, &prt_right);
|
|
|
|
// rjf: merge 3 into out
|
|
e_oplist_concat_in_place(out, &prt_left);
|
|
}break;
|
|
|
|
case RDI_EvalOp_ConstString:
|
|
{
|
|
e_oplist_push_string_literal(arena, out, root->string);
|
|
}break;
|
|
|
|
default:
|
|
{
|
|
if(op >= RDI_EvalOp_COUNT)
|
|
{
|
|
// TODO: error - invalid ir-tree op
|
|
}
|
|
else
|
|
{
|
|
// rjf: append ops for all children
|
|
U16 ctrlbits = rdi_eval_op_ctrlbits_table[op];
|
|
U64 child_count = RDI_POPN_FROM_CTRLBITS(ctrlbits);
|
|
U64 idx = 0;
|
|
for(E_IRNode *child = root->first;
|
|
child != &e_irnode_nil && idx < child_count;
|
|
child = child->next, idx += 1)
|
|
{
|
|
e_append_oplist_from_irtree(arena, child, out);
|
|
}
|
|
|
|
// rjf: emit op to compute this node
|
|
e_oplist_push_op(arena, out, (RDI_EvalOp)root->op, root->value);
|
|
}
|
|
}break;
|
|
}
|
|
}
|
|
|
|
internal E_OpList
|
|
e_oplist_from_irtree(Arena *arena, E_IRNode *root)
|
|
{
|
|
E_OpList ops = {0};
|
|
e_append_oplist_from_irtree(arena, root, &ops);
|
|
return ops;
|
|
}
|
|
|
|
internal String8
|
|
e_bytecode_from_oplist(Arena *arena, E_OpList *oplist)
|
|
{
|
|
// rjf: allocate buffer
|
|
U64 size = oplist->encoded_size;
|
|
U8 *str = push_array_no_zero(arena, U8, size);
|
|
|
|
// rjf: iterate loose op nodes; fill buffer
|
|
U8 *ptr = str;
|
|
U8 *opl = str + size;
|
|
for(E_Op *op = oplist->first;
|
|
op != 0;
|
|
op = op->next)
|
|
{
|
|
U32 opcode = op->opcode;
|
|
switch(opcode)
|
|
{
|
|
default:
|
|
{
|
|
// rjf: compute bytecode advance
|
|
U16 ctrlbits = rdi_eval_op_ctrlbits_table[opcode];
|
|
U64 extra_byte_count = RDI_DECODEN_FROM_CTRLBITS(ctrlbits);
|
|
U8 *next_ptr = ptr + 1 + extra_byte_count;
|
|
Assert(next_ptr <= opl);
|
|
|
|
// rjf: fill bytecode
|
|
ptr[0] = opcode;
|
|
MemoryCopy(ptr + 1, &op->value.u64, extra_byte_count);
|
|
|
|
// rjf: advance
|
|
ptr = next_ptr;
|
|
}break;
|
|
|
|
case RDI_EvalOp_ConstString:
|
|
{
|
|
// rjf: compute bytecode advance
|
|
U8 *next_ptr = ptr + 2 + op->value.u64;
|
|
Assert(next_ptr <= opl);
|
|
|
|
// rjf: fill
|
|
ptr[0] = opcode;
|
|
ptr[1] = (U8)op->value.u64;
|
|
MemoryCopy(ptr+2, op->string.str, op->value.u64);
|
|
|
|
// rjf: advance
|
|
ptr = next_ptr;
|
|
}break;
|
|
|
|
case E_IRExtKind_Bytecode:
|
|
{
|
|
// rjf: compute bytecode advance
|
|
U64 size = op->string.size;
|
|
U8 *next_ptr = ptr + size;
|
|
Assert(next_ptr <= opl);
|
|
|
|
// rjf: fill bytecode
|
|
MemoryCopy(ptr, op->string.str, size);
|
|
|
|
// rjf: advance
|
|
ptr = next_ptr;
|
|
}break;
|
|
|
|
case E_IRExtKind_SetSpace:
|
|
{
|
|
// rjf: compute bytecode advance
|
|
U64 extra_byte_count = sizeof(E_Space);
|
|
U8 *next_ptr = ptr + 1 + extra_byte_count;
|
|
Assert(next_ptr <= opl);
|
|
|
|
// rjf: fill bytecode
|
|
ptr[0] = opcode;
|
|
MemoryCopy(ptr + 1, &op->value.u128, extra_byte_count);
|
|
|
|
// rjf: advance
|
|
ptr = next_ptr;
|
|
}break;
|
|
}
|
|
}
|
|
|
|
// rjf: fill result
|
|
String8 result = {0};
|
|
result.size = size;
|
|
result.str = str;
|
|
return result;
|
|
}
|