| commit | b29b950bf227b65e193abf924f77ef3fa4eceaae | [log] [tgz] |
|---|---|---|
| author | Chad Rosier <mcrosier@apple.com> | Sun Nov 13 02:23:59 2011 +0000 |
| committer | Chad Rosier <mcrosier@apple.com> | Sun Nov 13 02:23:59 2011 +0000 |
| tree | a708dfb42fcc7a91c7647794b2b4b14e59b83593 | |
| parent | 569561c7eedbd96b8f78c30505d2bdc265a1efc5 [diff] |
Add support for emitting both signed- and zero-extend loads. Fix SimplifyAddress to handle either a 12-bit unsigned offset or the ARM +/-imm8 offsets (addressing mode 3). This enables a load followed by an integer extend to be folded into a single load. For example: ldrb r1, [r0] ldrb r1, [r0] uxtb r2, r1 => mov r3, r2 mov r3, r1 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144488 91177308-0d34-0410-b5e6-96231b3b80d8