R600: Don't call setOperationAction with things that aren't opcodes.
R600: Don't call setOperationAction with things that aren't opcodes.

CondCode actions are set with setCondCodeAction.
This should have been a harmless bug since the values seem to only
collide only with nodes that don't need to be handled, and these are
already correctly setup elsewhere.

git-svn-id: 0ff597fd157e6f4fc38580e8d64ab130330d2411@210888 91177308-0d34-0410-b5e6-96231b3b80d8

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