diff options
| -rw-r--r-- | lib/Target/ARM/README-Thumb.txt | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/Target/ARM/README-Thumb.txt b/lib/Target/ARM/README-Thumb.txt index 3b27ed3889..eed3c54372 100644 --- a/lib/Target/ARM/README-Thumb.txt +++ b/lib/Target/ARM/README-Thumb.txt @@ -236,4 +236,5 @@ to avoid extra work when we convert Thumb2 instructions to Thumb1 instructions. //===---------------------------------------------------------------------===// We need to make (some of the) Thumb1 instructions predicable. That will allow -shrinking of predicated Thumb2 instructions. +shrinking of predicated Thumb2 instructions. To allow this, we need to be able +to toggle the 's' bit since they do not set CPSR when they are inside IT blocks. |