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
2004-05-27 18:28:32 +00:00
2004-05-27 05:51:31 +00:00
2004-06-01 20:37:41 +00:00

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LLVM backend for 6502
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