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eliminate member-expr-extension irtree/oplist/etc. recomputations; just convert lhs irtree to bytecode and attach that to new expr as a leaf bytecode

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This commit is contained in:
Ryan Fleury
2025-02-13 06:51:50 -08:00
parent c31b15524a
commit 50b195deb3
5 changed files with 27 additions and 24 deletions
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src/eval/eval_ir.c
+22 -2
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@@ -481,7 +481,7 @@ E_LOOKUP_RANGE_FUNCTION_DEF(default)
U64 member_idx = idx + read_range.min;
String8 member_name = (struct_type->members ? struct_type->members[member_idx].name :
struct_type->enum_vals ? struct_type->enum_vals[member_idx].name : str8_lit(""));
exprs[idx] = e_expr_ref_member_access(arena, lhs, member_name);
exprs[idx] = e_expr_irext_member_access(arena, lhs, &lhs_irtree, member_name);
}
}
@@ -582,7 +582,7 @@ E_IRGEN_FUNCTION_DEF(slice)
U64 count = 0;
if(count_member != 0)
{
E_Expr *count_member_expr = e_expr_ref_member_access(scratch.arena, expr, count_member->name);
E_Expr *count_member_expr = e_expr_irext_member_access(arena, expr, &irtree, count_member->name);
E_Eval count_member_eval = e_eval_from_expr(scratch.arena, count_member_expr);
E_Eval count_member_value_eval = e_value_eval_from_eval(count_member_eval);
count = count_member_value_eval.value.u64;
@@ -2283,6 +2283,26 @@ e_bytecode_from_oplist(Arena *arena, E_OpList *oplist)
return result;
}
//- rjf: leaf-bytecode expression extensions
internal E_Expr *
e_expr_irext_member_access(Arena *arena, E_Expr *lhs, E_IRTreeAndType *lhs_irtree, String8 member_name)
{
E_Expr *root = e_push_expr(arena, E_ExprKind_MemberAccess, 0);
E_Expr *lhs_bytecode = e_push_expr(arena, E_ExprKind_LeafBytecode, lhs->location);
E_OpList lhs_oplist = e_oplist_from_irtree(arena, lhs_irtree->root);
lhs_bytecode->string = lhs->string;
lhs_bytecode->space = lhs->space;
lhs_bytecode->mode = lhs_irtree->mode;
lhs_bytecode->type_key = lhs_irtree->type_key;
lhs_bytecode->bytecode = e_bytecode_from_oplist(arena, &lhs_oplist);
E_Expr *rhs = e_push_expr(arena, E_ExprKind_LeafMember, 0);
rhs->string = push_str8_copy(arena, member_name);
e_expr_push_child(root, lhs_bytecode);
e_expr_push_child(root, rhs);
return root;
}
////////////////////////////////
//~ rjf: IRified Expression Cache