Re: [Mesa-dev] PowerPC: Add Altivec vector add/sub intrisics

2012-11-05 Thread Roland Scheidegger
Am 05.11.2012 19:06, schrieb Adhemerval Zanella: > This patch add correct vector addition and subtraction intrisics when > using Altivec with PPC. Current code uses default path and LLVM backend > ends up issuing carry-out arithmetic instruction while it is expected > saturated ones. > > It also i

[Mesa-dev] PowerPC: Add Altivec vector add/sub intrisics

2012-11-05 Thread Adhemerval Zanella
This patch add correct vector addition and subtraction intrisics when using Altivec with PPC. Current code uses default path and LLVM backend ends up issuing carry-out arithmetic instruction while it is expected saturated ones. It also includes a fix for PowerPC where char are unsigned by default,