Another TODO.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77026 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/ARM/README-Thumb.txt b/lib/Target/ARM/README-Thumb.txt
index df94312d5f391fefa8eb9c72d75f81266973db8d..a961a576f40d1fdaa16f1500aedaa1753627c555 100644 (file)
--- a/lib/Target/ARM/README-Thumb.txt
+++ b/lib/Target/ARM/README-Thumb.txt
@@ -248,3 +248,9 @@ Make use of hi register variants of cmp: tCMPhir / tCMPZhir.
 Thumb1 immediate field sometimes keep pre-scaled values. See
 Thumb1RegisterInfo::eliminateFrameIndex. This is inconsistent from ARM and
 Thumb2.
+
+//===---------------------------------------------------------------------===//
+
+Rather than having tBR_JTr print a ".align 2" and constant island pass pad it,
+add a target specific ALIGN instruction instead. That way, GetInstSizeInBytes
+won't have to over-estimate. It can also be used for loop alignment pass.