Nate Begeman c6b63cd2ed Add ori reg, reg, 0 as a move instruction. This can be generated from ...

loading a 32bit constant into a register whose low halfword is all zeroes.

We now omit the ori after the lis for the following C code:

int bar(int y) { return y * 0x00F0000; }

_bar:
.LBB_bar_0:     ; entry
        ; IMPLICIT_DEF
        lis r2, 15
        mullw r3, r3, r2
        blr

llvm-svn: 16825

2004-10-07 22:26:12 +00:00

2.7 KiB

Raw Blame History

View Raw