Re: [PATCH 30/31] PR target/95294: VAX: Convert backend to MODE_CC representation

2020-12-09 Thread Maciej W. Rozycki
On Fri, 20 Nov 2020, Maciej W. Rozycki wrote: > Outliers: > > old new change %change filename > > 24062950+544+22.610 20111208-1.exe > 43145329+1015 +23.528 pr39417.exe > 22353055+820+36.689

Re: [PATCH 30/31] PR target/95294: VAX: Convert backend to MODE_CC representation

2020-11-21 Thread Jeff Law via Gcc-patches
On 11/19/20 8:36 PM, Maciej W. Rozycki wrote: > In the VAX ISA INSV bitfield insert instruction is the only computational > operation that keeps the condition codes, held in the PSL or Processor > Status Longword register, intact. The instruction is flexible enough it > could potentially be

[PATCH 30/31] PR target/95294: VAX: Convert backend to MODE_CC representation

2020-11-19 Thread Maciej W. Rozycki
In the VAX ISA INSV bitfield insert instruction is the only computational operation that keeps the condition codes, held in the PSL or Processor Status Longword register, intact. The instruction is flexible enough it could potentially be used for data moves post-reload, but then reportedly it is