[llvm-commits] [PATCH] PowerPC: Expand FSRQT for vector types

[Alex Rosenberg]

On Nov 1, 2012, at 3:18 AM, Adhemerval Zanella <azanella at linux.vnet.ibm.com> wrote:

> The idea of the patch is to avoid llvm fail on altivec-enabled hosts for the related
> llvm.sqrt.* calls (currently llvm cannot select the calls with '-mattr=+altivec'). And
> it has not change in 2.06 for altivec set, although VSX provides now a sqrt for
> vector types.

You need to check if the subtarget hasFSQRT() is true.

Alex

> On 10/31/2012 08:23 PM, Alex Rosenberg wrote:
>> fsqrt and fsqrts are optional instructions of the "general-purpose" set, not architecturally-related to AltiVec (unless this changed in 2.06 or later, which I haven't read closely).
>> 
>> Sent from my iPad
>> 
>> On Oct 30, 2012, at 10:55 AM, Adhemerval Zanella <azanella at linux.vnet.ibm.com> wrote:
>> 
>>> This patch expands the FSQRT operations for vector types when altivec is
>>> enabled. Without it a call to sqrt operation in vector causes a compiler
>>> failure.
>>> 
>>> Any tips, suggestions, comments?
>>> 
>>> <0002-PowerPC-Expand-FSRQT-for-vector-types.patch>
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> 
> -- 
> Adhemerval Zanella Netto
>  Software Engineer
>  Linux Technology Center Brazil
>  Toolchain / GLIBC on Power Architecture
>  azanella at linux.vnet.ibm.com / azanella at br.ibm.com
>  +55 61 8642-9890