From 11a065e599ff593acbdffebba1981c88ee0a9d4e Mon Sep 17 00:00:00 2001
From: Evan Cheng <evan.cheng@apple.com>
Date: Wed, 31 Jan 2007 22:11:38 +0000
Subject: [PATCH] Add entry.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33723 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Target/ARM/README-Thumb.txt | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/lib/Target/ARM/README-Thumb.txt b/lib/Target/ARM/README-Thumb.txt
index c64457fe153..b0473da6a71 100644
--- a/lib/Target/ARM/README-Thumb.txt
+++ b/lib/Target/ARM/README-Thumb.txt
@@ -19,3 +19,7 @@
 * If we know function size is less than (1 << 16) * 2 bytes, we can use 16-bit
   jumptable entries (e.g. (L1 - L2) >> 1). Or even smaller entries if the
   function is even smaller. This also applies to ARM.
+
+* In thumb mode, short, byte, and bool preferred alignments are currently set
+  to 4 to accommodate ISA restriction (i.e. add sp, #imm, imm must be multiple
+  of 4).