From 9050a07540b7387dade8184d3a3daf957e805e4f Mon Sep 17 00:00:00 2001
From: Andrew Kelley <andrew@ziglang.org>
Date: Tue, 18 Jun 2019 11:31:05 -0400
Subject: when resolving slice types, might need to...

...resolve alignment if custom alignment is provided

fixes #2689
---
 src/ir.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'src/ir.cpp')

diff --git a/src/ir.cpp b/src/ir.cpp
index 21751b9a96..b74a99b37d 100644
--- a/src/ir.cpp
+++ b/src/ir.cpp
@@ -16794,7 +16794,9 @@ static IrInstruction *ir_analyze_instruction_slice_type(IrAnalyze *ira,
         case ZigTypeIdPromise:
         case ZigTypeIdVector:
             {
-                if ((err = type_resolve(ira->codegen, child_type, ResolveStatusZeroBitsKnown)))
+                ResolveStatus needed_status = (align_bytes == 0) ?
+                    ResolveStatusZeroBitsKnown : ResolveStatusAlignmentKnown;
+                if ((err = type_resolve(ira->codegen, child_type, needed_status)))
                     return ira->codegen->invalid_instruction;
                 ZigType *slice_ptr_type = get_pointer_to_type_extra(ira->codegen, child_type,
                         is_const, is_volatile, PtrLenUnknown, align_bytes, 0, 0, is_allow_zero);
-- 
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