On 05/12/2017 05:27 AM, Bin Cheng wrote: > Hi, > This will be a patch series implementing an interface which estimates register > pressure on tree ssa and uses the information in predictive common > optimization. > This the first patch computing map from type modes to register pressure > classes. > > Given there is no pseudo register on tree ssa form, we need type mode -> > register > class information to compute register pressure. This patch adds such map in > struct target_ira and a function computing the map. Though the map is > computed > by guess, it's enough for use on tree level. As a matter of fact, we only > need > to identify GENERAL, FLOAT and VECTOR register classes. > > Bootstrap and test on x86_64 and AArch64, is it OK? > > Thanks, > bin > > 2017-05-10 Bin Cheng <bin.ch...@arm.com> > > * ira.c (setup_mode_classes): New function. > (find_reg_classes): Call above function. > * ira.h (struct target_ira): New field x_ira_mode_classes. > (ira_mode_classes): New macro. > OK. jeff
