Re: [PATCH V5 2/2] rs6000: use mtvsrws to move sf from si p9

2023-10-07 Thread Jiufu Guo
Hi, David Edelsohn writes: > This Message Is From an External Sender > This message came from outside your organization. > Report Suspicious > > On Thu, Oct 5, 2023 at 12:14 AM Jiufu Guo wrote: > > Hi, > > As mentioned in PR108338, on p9, we could use mtvsrws to implement > the bitcas

Re: [PATCH V5 2/2] rs6000: use mtvsrws to move sf from si p9

2023-10-05 Thread David Edelsohn
On Thu, Oct 5, 2023 at 12:14 AM Jiufu Guo wrote: > Hi, > > As mentioned in PR108338, on p9, we could use mtvsrws to implement > the bitcast from SI to SF (or lowpart DI to SF). > > For example: > *(long long*)buff = di; > float f = *(float*)(buff); > > "sldi 9,3,32 ; mtvsrd 1,9 ; xscvspdpn 1,