Re: [Mesa-dev] [PATCH 02/12] i965/fs: Rewrite fsign64 to skip the float -> double conversion

2017-09-29 Thread Matt Turner
On Fri, Sep 29, 2017 at 4:48 AM, Iago Toral wrote: > On Thu, 2017-09-28 at 23:05 -0700, Matt Turner wrote: >> ... without the float -> double conversion. Low power parts have >> additional restrictions when it comes to operating on 64-bit types, >> and >> the instruction used to do the conversion

Re: [Mesa-dev] [PATCH 02/12] i965/fs: Rewrite fsign64 to skip the float -> double conversion

2017-09-29 Thread Iago Toral
On Thu, 2017-09-28 at 23:05 -0700, Matt Turner wrote: > ... without the float -> double conversion. Low power parts have > additional restrictions when it comes to operating on 64-bit types, > and > the instruction used to do the conversion violates one of them: > specifically, the restriction that

[Mesa-dev] [PATCH 02/12] i965/fs: Rewrite fsign64 to skip the float -> double conversion

2017-09-28 Thread Matt Turner
... without the float -> double conversion. Low power parts have additional restrictions when it comes to operating on 64-bit types, and the instruction used to do the conversion violates one of them: specifically, the restriction that "Source and Destination horizontal stride must be aligned to th