RE: [PATCH, ARM] Suppress Redundant Flag Setting for Cortex-A15

> Hi, > > On 28 January 2014 13:10, Ramana Radhakrishnan > wrote: > > On Fri, Jan 24, 2014 at 5:16 PM, Ian Bolton > wrote: > >> Hi there! > >> > >> An existing optimisation for Thumb-2 converts t32 encodings to > >> t16 encodings to reduce codesize, at the expense of causing > >> redundant flag

Re: [PATCH, ARM] Suppress Redundant Flag Setting for Cortex-A15

Hi, On 28 January 2014 13:10, Ramana Radhakrishnan wrote: > On Fri, Jan 24, 2014 at 5:16 PM, Ian Bolton wrote: >> Hi there! >> >> An existing optimisation for Thumb-2 converts t32 encodings to >> t16 encodings to reduce codesize, at the expense of causing >> redundant flag setting for ADD, AND,

Re: [PATCH, ARM] Suppress Redundant Flag Setting for Cortex-A15

On Fri, Jan 24, 2014 at 5:16 PM, Ian Bolton wrote: > Hi there! > > An existing optimisation for Thumb-2 converts t32 encodings to > t16 encodings to reduce codesize, at the expense of causing > redundant flag setting for ADD, AND, etc. This redundant flag > setting can have negative performance i

[PATCH, ARM] Suppress Redundant Flag Setting for Cortex-A15

Hi there! An existing optimisation for Thumb-2 converts t32 encodings to t16 encodings to reduce codesize, at the expense of causing redundant flag setting for ADD, AND, etc. This redundant flag setting can have negative performance impact on cortex-a15. This patch introduces two new tuning opti