search for: extra_linktime_opt_flag

...r. It mostly affects the performance of -Os compiled code. I have made some measurements on the SPEC test suite to show what it means. I made three runs of then nightly tests. The baseline represents -Os with no inlinehint: make TEST=nightly OPTFLAGS=-Os EXTRA_LOPT_OPTIONS=-inlinehint-threshold=0 EXTRA_LINKTIME_OPT_FLAGS=-inlinehint-threshold=0 report For the second run I enabled the inline hint, keeping the -Os flag: make TEST=nightly OPTFLAGS=-Os report The third run is -O3: make TEST=nightly OPTFLAGS=-O3 EXTRA_LOPT_OPTIONS=-inline-threshold=275 EXTRA_LINKTIME_OPT_FLAGS=-inline-threshold=275 report Note the...

Hi, In my experiments, I need to disable several linking optimizations. However, bzip2, vortex and eon failed if "-disable-opt" was passed to gccld. I tried the out-of-box llvm and the building process provided by llvm-test. The same problem was observed, when I specified EXTRA_LINKTIME_OPT_FLAGS = -disable-opt on Makefile.program and simplied typed "make" under llvm-test/External/SPEC/CINT2000. Seems that these errors come from llc backend. But I have to stick to x86 backend because otherwise I can not control the optimization passes that gcc will put on the generated c code. I...