From 31f0aaa62f2799d7c5e38c10cabe034284ae8e5d Mon Sep 17 00:00:00 2001 From: gingerBill Date: Wed, 24 Sep 2025 09:55:22 +0100 Subject: Try to improve const `union` LLVM construction --- src/llvm_backend_expr.cpp | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'src/llvm_backend_expr.cpp') diff --git a/src/llvm_backend_expr.cpp b/src/llvm_backend_expr.cpp index cff91813e..4a1f39c19 100644 --- a/src/llvm_backend_expr.cpp +++ b/src/llvm_backend_expr.cpp @@ -2495,6 +2495,11 @@ gb_internal lbValue lb_emit_conv(lbProcedure *p, lbValue value, Type *t) { Type *vt = dst->Union.variants[0]; if (internal_check_is_assignable_to(src_type, vt)) { value = lb_emit_conv(p, value, vt); + if (lb_is_const(value)) { + LLVMValueRef res = lb_construct_const_union(m, value.value, vt, t); + return {res, t}; + } + lbAddr parent = lb_add_local_generated(p, t, true); lb_emit_store_union_variant(p, parent.addr, value, vt); return lb_addr_load(p, parent); @@ -2503,11 +2508,18 @@ gb_internal lbValue lb_emit_conv(lbProcedure *p, lbValue value, Type *t) { for (Type *vt : dst->Union.variants) { if (src_type == t_llvm_bool && is_type_boolean(vt)) { value = lb_emit_conv(p, value, vt); + if (lb_try_construct_const_union(m, &value, vt, t)) { + return value; + } + lbAddr parent = lb_add_local_generated(p, t, true); lb_emit_store_union_variant(p, parent.addr, value, vt); return lb_addr_load(p, parent); } if (are_types_identical(src_type, vt)) { + if (lb_try_construct_const_union(m, &value, vt, t)) { + return value; + } lbAddr parent = lb_add_local_generated(p, t, true); lb_emit_store_union_variant(p, parent.addr, value, vt); return lb_addr_load(p, parent); @@ -2545,6 +2557,9 @@ gb_internal lbValue lb_emit_conv(lbProcedure *p, lbValue value, Type *t) { if (valid_count == 1) { Type *vt = dst->Union.variants[first_success_index]; value = lb_emit_conv(p, value, vt); + if (lb_try_construct_const_union(m, &value, vt, t)) { + return value; + } lbAddr parent = lb_add_local_generated(p, t, true); lb_emit_store_union_variant(p, parent.addr, value, vt); return lb_addr_load(p, parent); -- cgit v1.2.3