| commit | 30eae3c02244e18747f9f0dca6946d86d0ccb7f5 | [log] [tgz] |
|---|---|---|
| author | Jim Grosbach <grosbach@apple.com> | Tue Apr 07 20:34:09 2009 +0000 |
| committer | Jim Grosbach <grosbach@apple.com> | Tue Apr 07 20:34:09 2009 +0000 |
| tree | 44e67111b90edc1491446bbf9fc880bd349477f5 | |
| parent | f23e809be09aac2f1a01e84e2b03826322b2f856 [diff] |
PR2985 / <rdar://problem/6584986> When compiling in Thumb mode, only the low (R0-R7) registers are available for most instructions. Breaking the low registers into a new register class handles this. Uses of R12, SP, etc, are handled explicitly where needed with copies inserted to move results into low registers where the rest of the code generator can deal with them. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68545 91177308-0d34-0410-b5e6-96231b3b80d8