Chris Lattner 667ea024b5 Codegen sub C, X a little bit better for register pressure. Instead of
mov REG, C
sub REG, X

generate:

neg X
add X, C

which uses one less reg


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14213 91177308-0d34-0410-b5e6-96231b3b80d8
2004-06-18 00:50:37 +00:00
..
2004-01-14 21:18:03 +00:00
2004-02-13 23:29:37 +00:00