From abdd726ce52ddbb3e820579eb636612d39f09896 Mon Sep 17 00:00:00 2001
From: Rafael Espindola <rafael.espindola@gmail.com>
Date: Mon, 6 Jan 2014 21:40:24 +0000
Subject: Improve documentation of the 'a' specifier and the '<abi>:<pref>'
 align pair.

llvm-svn: 198636
---
 llvm/lib/IR/DataLayout.cpp | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'llvm/lib/IR/DataLayout.cpp')

diff --git a/llvm/lib/IR/DataLayout.cpp b/llvm/lib/IR/DataLayout.cpp
index ee2b4bc4e7b..c9e95b40215 100644
--- a/llvm/lib/IR/DataLayout.cpp
+++ b/llvm/lib/IR/DataLayout.cpp
@@ -287,6 +287,9 @@ void DataLayout::parseSpecifier(StringRef Desc) {
       // Bit size.
       unsigned Size = Tok.empty() ? 0 : getInt(Tok);
 
+      assert((AlignType != AGGREGATE_ALIGN || Size == 0) &&
+             "These specifications don't have a size");
+
       // ABI alignment.
       Split = split(Rest, ':');
       unsigned ABIAlign = inBytes(getInt(Tok));
-- 
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