From dd5b2d1b04197903489f5da9c178e17e61bb55e3 Mon Sep 17 00:00:00 2001 From: Andrew Kelley Date: Sun, 16 Sep 2018 11:23:38 -0400 Subject: fix crash when pointer casting a runtime extern function --- src/analyze.cpp | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'src') diff --git a/src/analyze.cpp b/src/analyze.cpp index c9ae865390..0401c7125f 100644 --- a/src/analyze.cpp +++ b/src/analyze.cpp @@ -3992,9 +3992,10 @@ uint32_t get_ptr_align(CodeGen *g, ZigType *type) { return (ptr_type->data.pointer.explicit_alignment == 0) ? get_abi_alignment(g, ptr_type->data.pointer.child_type) : ptr_type->data.pointer.explicit_alignment; } else if (ptr_type->id == ZigTypeIdFn) { - return (ptr_type->data.fn.fn_type_id.alignment == 0) ? - LLVMABIAlignmentOfType(g->target_data_ref, ptr_type->data.fn.raw_type_ref) : - ptr_type->data.fn.fn_type_id.alignment; + // I tried making this use LLVMABIAlignmentOfType but it trips this assertion in LLVM: + // "Cannot getTypeInfo() on a type that is unsized!" + // when getting the alignment of `?extern fn() void`. + return (ptr_type->data.fn.fn_type_id.alignment == 0) ? 1 : ptr_type->data.fn.fn_type_id.alignment; } else if (ptr_type->id == ZigTypeIdPromise) { return get_coro_frame_align_bytes(g); } else { -- cgit v1.2.3