Ping.
On 10/13/20 3:23 PM, Richard Henderson wrote:
> In several cases, it's easy to optimize across a non-taken branch
> simply by *not* flushing the relevant tables. This is true both
> for value propagation and register allocation.
>
> This comes up in quite a number of cases with arm, most simply in
> how conditional execution is implemented. But it also came up in
> discussion of how to implement low-overhead looping for v8.1m.
>
>
> r~
>
>
> Richard Henderson (2):
> tcg: Do not kill globals at conditional branches
> tcg/optimize: Flush data at labels not TCG_OPF_BB_END
>
> include/tcg/tcg-opc.h | 7 +++---
> include/tcg/tcg.h | 4 +++-
> tcg/optimize.c | 35 ++++++++++++++-------------
> tcg/tcg.c | 55 +++++++++++++++++++++++++++++++++++++++++--
> 4 files changed, 78 insertions(+), 23 deletions(-)
>
