| commit | a2daa8c78d8749d6b4743e8bbfe4d522cd13a669 | [log] [tgz] |
|---|---|---|
| author | Chris Lattner <sabre@nondot.org> | Sat Apr 09 21:43:54 2005 +0000 |
| committer | Chris Lattner <sabre@nondot.org> | Sat Apr 09 21:43:54 2005 +0000 |
| tree | 32677f7b93e9b47dbdadad390d8dc4fca7e93df2 | |
| parent | 91277ea45c7a6f052dd588edee51644f23194619 [diff] |
add a little peephole optimization. This allows us to codegen:
int a(short i) {
return i & 1;
}
as
_a:
andi. r3, r3, 1
blr
instead of:
_a:
rlwinm r2, r3, 0, 16, 31
andi. r3, r2, 1
blr
on ppc. It should also help the other risc targets.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21189 91177308-0d34-0410-b5e6-96231b3b80d8