From 2ee67b7642cfeef36d8ebbc08080202b5b1d1958 Mon Sep 17 00:00:00 2001 From: Andrew Kelley Date: Mon, 9 Jul 2018 11:13:29 -0400 Subject: langref: docs for invalid error set cast and incorrect pointer alignment also add detection of incorrect pointer alignment at compile-time of pointers that were constructed with `@intToPtr`. --- src/ir.cpp | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'src/ir.cpp') diff --git a/src/ir.cpp b/src/ir.cpp index 5e4c847e14..dcd39ccfe5 100644 --- a/src/ir.cpp +++ b/src/ir.cpp @@ -19370,6 +19370,15 @@ static IrInstruction *ir_align_cast(IrAnalyze *ira, IrInstruction *target, uint3 if (!val) return ira->codegen->invalid_instruction; + if (val->data.x_ptr.special == ConstPtrSpecialHardCodedAddr && + val->data.x_ptr.data.hard_coded_addr.addr % align_bytes != 0) + { + ir_add_error(ira, target, + buf_sprintf("pointer address 0x%lx is not aligned to %" PRIu32 " bytes", + val->data.x_ptr.data.hard_coded_addr.addr, align_bytes)); + return ira->codegen->invalid_instruction; + } + IrInstruction *result = ir_create_const(&ira->new_irb, target->scope, target->source_node, result_type); copy_const_val(&result->value, val, false); result->value.type = result_type; -- cgit v1.2.3