[LLVMdev] memset and _Znaj and fast-isel

Reed Kotler
Wed, 26 Nov 2014 02:20:29 -0000

Turned out to be a careless mistake on my part.

Oh, well...

This patch was not pushed yet and was in testing so nothing harmed.

On 11/25/2014 02:48 PM, reed kotler wrote:
> void func() {
>    int *  buckets = new int[111] ()  ;
>    delete [] buckets;
> }
>
> When compiling this with -O0 and fast-isel, I don't support calls to
> intrinsics yet in mips fast-isel so it starts to compile
> the block and generates the call to new (_Znaj) and then while
> generating the call to memset, it switches back to non fast-isel
> but then generates incorrect code for that.
>
> I notice that the other ports all generate code for intrinsic memset.
> It's not much for me to add this but was wondering if fast-isel will
not
> work if you don't.
>
> Just wondering if there is some special issue here.
>
> Tia.
>
> Reed