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| author | Evan Cheng <evan.cheng@apple.com> | 2009-07-09 20:50:52 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2009-07-09 20:50:52 +0000 |
| commit | f9870125fca4e2a8b4de03d38cbb50e5ac5a49e8 (patch) | |
| tree | 804a12e4adacb608c67bfa8ebd7c5c45fa585125 /llvm/lib | |
| parent | ad93707e164bf0a7d5bac24fb16c5370f0ea063a (diff) | |
| download | bcm5719-llvm-f9870125fca4e2a8b4de03d38cbb50e5ac5a49e8.tar.gz bcm5719-llvm-f9870125fca4e2a8b4de03d38cbb50e5ac5a49e8.zip | |
Add a Thumb readme entry.
llvm-svn: 75173
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Target/ARM/README-Thumb.txt | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/llvm/lib/Target/ARM/README-Thumb.txt b/llvm/lib/Target/ARM/README-Thumb.txt index 4d3200b445c..ecef58a32da 100644 --- a/llvm/lib/Target/ARM/README-Thumb.txt +++ b/llvm/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. |
