Add an entry.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76711 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/ARM/README.txt b/lib/Target/ARM/README.txt
index f3377f91ab9647e25c3fbf57bffbfef94b7b2eea..3e8c54a05a83609b89361f33714590ee8a86d501 100644 (file)
--- a/lib/Target/ARM/README.txt
+++ b/lib/Target/ARM/README.txt
@@ -537,3 +537,7 @@ Split out LDR (literal) from normal ARM LDR instruction. Also consider spliting
 LDR into imm12 and so_reg forms. This allows us to clean up some code. e.g.
 ARMLoadStoreOptimizer does not need to look at LDR (literal) and LDR (so_reg)
 while ARMConstantIslandPass only need to worry about LDR (literal).
+
+//===---------------------------------------------------------------------===//
+
+We need to fix constant isel for ARMv6t2 to use MOVT.