c variadic calls

2026-06-14 15:53:45 +02:00
parent 638ca57f5c
commit 2d3d0bd266
21 changed files with 409 additions and 35 deletions
@@ -324,7 +324,7 @@ lower_expr :: proc(state: ^State, expr_id: hir.Expr_Id) -> ir.Instruction_Id {
 					})
 				}
 				_ = pop(&stack)
-			case .Widen, .Weaken_Pointer:
+			case .Widen, .C_Vararg_Promote, .Weaken_Pointer:
 				stack[frame_index].stage = 1
 				append(&stack, Lower_Expr_Frame{expr=expr.left})
 			case .Negate:
@@ -358,7 +358,8 @@ lower_expr :: proc(state: ^State, expr_id: hir.Expr_Id) -> ir.Instruction_Id {
 		}
 		if frame.stage == 1 {
 			last = append_instruction(state, ir.Instruction{
-				op=.Weaken_Pointer if expr.kind == .Weaken_Pointer else .Widen,
+				op=.Weaken_Pointer if expr.kind == .Weaken_Pointer else
+				   (.C_Vararg_Promote if expr.kind == .C_Vararg_Promote else .Widen),
 				span=expr.span, type=expr.type, target=ir.INVALID_REF,
 				a=last, b=ir.INVALID_INSTRUCTION, diagnostic=source.INVALID_DIAGNOSTIC,
 			})
@@ -611,6 +612,7 @@ lower :: proc(hir_module: ^hir.Module, allocator := context.allocator) -> ir.Mod
 			implementation=.Declaration if function.implementation == .Declaration else .Definition,
 			linkage=.External if function.linkage == .External else .Internal,
 			is_main=function.is_main,
+			variadic=function.variadic,
 			param_types=param_types,
 			result=function.result,
 			instructions=nil if function.implementation == .Declaration else lower_body(hir_module, function, allocator),