From 5072d5c776eb53afb2439f43dfa40ccadb68dfb9 Mon Sep 17 00:00:00 2001 From: gingerBill Date: Thu, 22 Jan 2026 13:54:53 +0000 Subject: Add warning in code generation stage which might cause a possible code gen issue, when non-constant initialization is large --- src/llvm_backend.cpp | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'src/llvm_backend.cpp') diff --git a/src/llvm_backend.cpp b/src/llvm_backend.cpp index 34afb9c8c..c15f326f8 100644 --- a/src/llvm_backend.cpp +++ b/src/llvm_backend.cpp @@ -2045,6 +2045,11 @@ gb_internal bool lb_init_global_var(lbModule *m, lbProcedure *p, Entity *e, Ast lb_emit_store(p, data, lb_emit_conv(p, gp, t_rawptr)); lb_emit_store(p, ti, lb_typeid(p->module, var_type)); } else { + i64 sz = type_size_of(e->type); + if (sz >= 4 * 1024) { + warning(init_expr, "[Possible Code Generation Issue] Non-constant initialization is large (%lld bytes), and might cause problems with LLVM", cast(long long)sz); + } + LLVMTypeRef vt = llvm_addr_type(p->module, var.var); lbValue src0 = lb_emit_conv(p, var.init, t); LLVMValueRef src = OdinLLVMBuildTransmute(p, src0.value, vt); -- cgit v1.2.3