Re: [PATCH, ARM] Tune thumb1_size_rtx_costs

2014-09-18 Thread Ramana Radhakrishnan
On Wed, Sep 10, 2014 at 6:30 AM, Zhenqiang Chen zhenqiang.c...@arm.com wrote: Hi, Currently most thumb1_size_rtx_costs are guessed from performance view, not size. The patch adjusts some of them according the instruction patterns defined in thumb1.md. It also replaces several hard coded 4

[PATCH, ARM] Tune thumb1_size_rtx_costs

2014-09-09 Thread Zhenqiang Chen
Hi, Currently most thumb1_size_rtx_costs are guessed from performance view, not size. The patch adjusts some of them according the instruction patterns defined in thumb1.md. It also replaces several hard coded 4 to COSTS_N_INSNS (1). No make check regression for Cortex-M0 on qemu. For Cortex-M0