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authorEvan Cheng <evan.cheng@apple.com>2009-07-09 23:17:28 +0000
committerEvan Cheng <evan.cheng@apple.com>2009-07-09 23:17:28 +0000
commit896fe89f55a1620782eb3d421271059a02d92d1c (patch)
tree73c2ed852a37cb284945c3e3ea6af33a94ef8b01 /lib/Target/ARM/README-Thumb.txt
parent38b06447615440f935008a2141bd0a1fe078d437 (diff)
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Another todo entry.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75192 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/ARM/README-Thumb.txt')
-rw-r--r--lib/Target/ARM/README-Thumb.txt5
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diff --git a/lib/Target/ARM/README-Thumb.txt b/lib/Target/ARM/README-Thumb.txt
index ecef58a32d..3b27ed3889 100644
--- a/lib/Target/ARM/README-Thumb.txt
+++ b/lib/Target/ARM/README-Thumb.txt
@@ -232,3 +232,8 @@ 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.
+
+//===---------------------------------------------------------------------===//
+
+We need to make (some of the) Thumb1 instructions predicable. That will allow
+shrinking of predicated Thumb2 instructions.