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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 causes...

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

Hi everyone, We are implementing a profiling instrumentation tool as a part of clang's LTO. The tool inserts code at compile time that makes calls to a runtime library (written as a C file) during program execution. The runtime library can collect different kinds of profile information depending on user input. Previously, the user had to manually link the correct profiling library to the

Hi, Sean: I'm sorry I lie. I didn't mean to lie. I did try to avoid making a *BIG* change to the IPO pass-ordering for now. However, when I make a minor change to populateLTOPassManager() by separating module-pass and non-module-passes, I saw quite a few performance difference, most of them are degradations. Attacking these degradations one by one in a piecemeal manner is wasting

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 as...