From 6dded67b0d6262964e22163d0ab37c9ee6957c0a Mon Sep 17 00:00:00 2001 From: Evan Cheng Date: Thu, 9 Jul 2009 20:50:52 +0000 Subject: [PATCH] Add a Thumb readme entry. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75173 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Target/ARM/README-Thumb.txt | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/lib/Target/ARM/README-Thumb.txt b/lib/Target/ARM/README-Thumb.txt index 4d3200b445c..ecef58a32da 100644 --- a/lib/Target/ARM/README-Thumb.txt +++ b/lib/Target/ARM/README-Thumb.txt @@ -226,3 +226,9 @@ etc. Almost all Thumb instructions clobber condition code. //===---------------------------------------------------------------------===// Add ldmia, stmia support. + +//===---------------------------------------------------------------------===// + +Thumb load / store address mode offsets are scaled. The values kept in the +instruction operands are pre-scale values. This probably ought to be changed +to avoid extra work when we convert Thumb2 instructions to Thumb1 instructions. -- 2.11.0