Re: [Qemu-devel] [PATCH 17/21] target-arm: A64: add support for conditional compare insns

[Richard Henderson]

On 12/19/2013 01:23 PM, Peter Maydell wrote:
> Hmm. I clearly don't entirely understand the rules here.
> The TCG README says "temporaries are only live
> in a basic block" and "After the end of a basic block, the
> content of temporaries is destroyed", which I took to
> mean that the value in the temp was dead after the
> branch, but that I could freely reuse it for something
> else afterwards as long as I wrote a new value to
> it (as we're doing here). I guess that's wrong?

You need to re-allocate it in each basic block.

We don't have enough tcg checking to find errors like this.


r~