[llvm-commits] [PATCH] Accidental <kill> on two-address operand

[Eli Friedman]

On Sun, Aug 2, 2009 at 12:18 PM, Jakob Stoklund Olesen<stoklund at 2pi.dk> wrote:
> The generated code looks like this:
>
> %reg1032<def> = MOVENCC_z %reg1031<kill>
> %reg1032<def> = BITTGL %reg1032, 0
>
> In this case a kill flag is also added to BITTGL, and
> TwoAddressInstructionPass fails to remove it again. Probably because
> it is expecting SSA code as input?

AFAIK, all virtual registers are supposed to be SSA until the
two-address pass runs.

-Eli