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Hi, I need to add switches like -disable-mem2reg, disable-gvn to llvm-ld. Currently CreateStandardLTOPasses takes in only DisableInternalize and DisableInliner switches. Is modifying this API okay for these new switches, or is it doable in some other ways ? - Sanjiv

Chris Lattner wrote: > On Feb 9, 2010, at 7:39 PM, Sanjiv Gupta wrote: > > >> Hi, >> I need to add switches like -disable-mem2reg, disable-gvn to llvm-ld. >> Currently CreateStandardLTOPasses takes in only DisableInternalize and >> DisableInliner switches. >> >> Is modifying this API okay for these new switches, or is it doable in >> some other ways ? >> > > Why do you want this? > > -Chris > Mem2Reg isn't really useful for a single register machine as ours. More often than not, it caus...

On Feb 9, 2010, at 7:39 PM, Sanjiv Gupta wrote: > Hi, > I need to add switches like -disable-mem2reg, disable-gvn to llvm-ld. > Currently CreateStandardLTOPasses takes in only DisableInternalize and > DisableInliner switches. > > Is modifying this API okay for these new switches, or is it doable in > some other ways ? Why do you want this? -Chris

...n the profiling library (stored on disk in LLVM bitcode), through the ld command, by modifying LTOCodeGenerator.cpp. We are having troubling sending command-line arguments to the LTO code, because LTO is called by the system ld. However, we've noticed the declaration static cl::opt<bool> DisableInline in LTOCodeGenerator.cpp. How is the DisableInline argument passed to LTO, and how would we be able to pass similar arguments, declared as cl::opt, to the LTO code? Thanks for your help, Melanie and Kui -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lis...

...g for libraries. Instead // we create the pass ourselves with the symbol list provided by the linker. - if (!DisableOpt) - PassManagerBuilder().populateLTOPassManager(passes, - /*Internalize=*/false, - !DisableInline, - DisableGVNLoadPRE); + if (!DisableOpt) { + PassManagerBuilder().populateIPOPassManager(passes, + /*Internalize=*/false, + !DisableInline); + PassMana...

Andy and I briefly discussed this the other day, we have not yet got chance to list a detailed pass order for the pre- and post- IPO scalar optimizations. This is wish-list in our mind: pre-IPO: based on the ordering he propose, get rid of the inlining (or just inline tiny func), get rid of all loop xforms... post-IPO: get rid of inlining, or maybe we still need it, only

...t; Chris Lattner wrote: >> On Feb 9, 2010, at 7:39 PM, Sanjiv Gupta wrote: >> >> >>> Hi, >>> I need to add switches like -disable-mem2reg, disable-gvn to llvm-ld. >>> Currently CreateStandardLTOPasses takes in only DisableInternalize and >>> DisableInliner switches. >>> >>> Is modifying this API okay for these new switches, or is it doable in >>> some other ways ? >>> >> >> Why do you want this? >> >> -Chris >> > Mem2Reg isn't really useful for a single register machine...