search for: not_addr_taken

...understand from this example: Suppose the a.c b.c comprise the program where a.c has some static variable whose address are not taken. The addr-taken information collected during stage time-stamp-0 cannot be found at time-stamp-1.2. If we were saving the addr-not-taken info in GlobalVariable::not_addr_taken, optimizations in 1.2 will automatically benefit from cached information. ------------------------------------- time-stamp-0: clang *.c -flto -c -o a.o time stamp 1: clang *.o -flto -o a.out time stamp 1.1): link a.o b.o into merged.o time stamp 1.2): do some optimizations time stamp...

...from this example: Suppose the a.c b.c comprise the program where a.c has some static variable whose address > are not taken. The addr-taken information collected during stage time-stamp-0 cannot be found at time-stamp-1.2. > > If we were saving the addr-not-taken info in GlobalVariable::not_addr_taken, optimizations in 1.2 will automatically benefit from > cached information. To answer Hal’s question, I think internal globals already benefit from Shuxin’s proposed optimization, independent of LTO. Shuxin is only pointing out a potential additional benefit, either in terms of compile time (no...

----- Original Message ----- > Hi, Hal: > > Thank you for your feedback, see following inline comment > > Thanks > > On 10/29/13 5:02 PM, Hal Finkel wrote: > > ----- Original Message ----- > >> Hi, There: > >> > >> I'd like to add bit, called "addr_not_taken", to > >> GlobalVariable in > >> order to

Hi, Hal: Thank you for your feedback, see following inline comment Thanks On 10/29/13 5:02 PM, Hal Finkel wrote: > ----- Original Message ----- >> Hi, There: >> >> I'd like to add bit, called "addr_not_taken", to GlobalVariable in >> order to >> indicate if a GlobalVariable doesn't has its address taken or not. >> >> 1.The