Hi, At the moment gollvm does not put out releases per se, meaning that really the only thing that is advertised as working is the current LLVM tip plus the current gollvm tip at a given moment in time.
If you wanted to create a version of gollvm for an older LLVM release (ex: LLVM 10), you would need to look at the date that LLVM was released, then for each of the sub-repos (gollvm itself, <gollvm>/libgo/libbacktrace, <gollvm>/libgo/libffi, <gollvm>/gofrontend) you'd need to locate a git commit close to that date. Or something to this effect. Can you tell me a bit more about your use case? Why not just use the most recent version of gollvm (e.g. tip)? Thanks, Than On Mon, Apr 12, 2021 at 11:51 AM Khanh TN <[email protected]> wrote: > Hi Than, > I'm trying to build gollvm with different versions of llvm: LLVM8, 10, 11 > and 13git. It looks like only 13git works. > -emit-llvm has some issues. The produced *.ll and *.bc LLVM bitcode can > only be opened with some of LLVM versions, and which version is quite > random to me. > Is there a manual on which version of LLVM should I build gollvm with and > which version is the bitcode that -emit-llvm produces? > Thanks, > Khanh > > On Thursday, April 8, 2021 at 10:55:16 PM UTC+8 Khanh TN wrote: > >> Thanks. Looks like I need everything, including llc at LLVM11. I will >> stick with LLVM11. >> I assume gollvm will match with whatever LLVM version is current, like, >> update to match LLVM12 when LLVM12 is out? >> >> Khanh >> On Thursday, April 8, 2021 at 10:40:19 PM UTC+8 [email protected] wrote: >> >>> >It outputs a hello.ll file. LLVM11 can process it but 10.0.1 and 13git >>> cannot >>> >Would love to hear your feedback. Maybe I need the exact LLVM version >>> that gollvm is targeting? >>> >>> Yes, that is correct. The LLVM IR dump format (*.ll files) tends to >>> change over time and from release to release, it isn't intended or designed >>> to be stable. >>> >>> One way to insure that you have a conformant version of llc/lli (or >>> equivalent) is just to build then in the same build directory where you >>> built llvm. >>> >>> E.g. after "ninja gollvm" you can then try "ninja llc", then use the >>> freshly built llc binary (found in ./bin) for your work. >>> >>> Thanks, Than >>> >>> >>> >>> On Thu, Apr 8, 2021 at 10:00 AM Khanh TN <[email protected]> wrote: >>> >>>> Hi, >>>> Thanks for your reply. >>>> It's a bit weird. >>>> I tried LLVM10.0.1 and the LLVM13 built from github along with gollvm, >>>> both did not work. >>>> However, I just tried LLVM11 and it worked. I haven't tried LLVM12. It >>>> looks like different LLVM version has different syntax? >>>> >>>> The Go code I tried is simplest: >>>> I have 1 file hello.go: >>>> >>>> package main >>>> import( >>>> "fmt" >>>> ) >>>> >>>> func main() { >>>> fmt.Println("Hello, playground") >>>> } >>>> >>>> As instructed in "How do I see the LLVM IR generated by gollvm?" on >>>> https://go.googlesource.com/gollvm , I ran >>>> > go build -work -x hello.go 1> transcript.txt 2>&1 >>>> > egrep '(WORK=|llvm-goc -c)' transcript.txt >>>> WORK=/tmp/go-build903363323 >>>> [...] >>>> > WORK=/tmp/go-build903363323 >>>> >[..change output to -o hello.ll; add -S -emit-llvm] >>>> >>>> It outputs a hello.ll file. LLVM11 can process it but 10.0.1 and 13git >>>> cannot >>>> Would love to hear your feedback. Maybe I need the exact LLVM version >>>> that gollvm is targeting? >>>> >>>> Khanh >>>> On Thursday, April 8, 2021 at 7:07:13 PM UTC+8 [email protected] wrote: >>>> >>>>> Hi, >>>>> >>>>> Can you be a bit more specific, e.g. what Go code you compiler and >>>>> what error you saw? It would also be helpful to know what version of >>>>> lli/llc you were using. >>>>> >>>>> Thanks, Than >>>>> >>>>> >>>>> On Thu, Apr 8, 2021 at 2:33 AM Khanh TN <[email protected]> wrote: >>>>> >>>>>> Hi, >>>>>> I'm following this page https://go.googlesource.com/gollvm to >>>>>> compile Go code the LLVM way. >>>>>> I'm at the step "How do I see the LLVM IR generated by gollvm?" of >>>>>> the page. I'm doing exactly as the instruction. Gollvm produces a .ll >>>>>> file >>>>>> but the file has bad syntax. Running llvm-as (or llc, lli) on the >>>>>> generated >>>>>> .ll file gives error (I think its syntax error) >>>>>> Can anyone check this out? >>>>>> >>>>>> Thankss, >>>>>> >>>>>> Khanh >>>>>> >>>>>> -- >>>>>> You received this message because you are subscribed to the Google >>>>>> Groups "golang-nuts" group. >>>>>> To unsubscribe from this group and stop receiving emails from it, >>>>>> send an email to [email protected]. >>>>>> To view this discussion on the web visit >>>>>> https://groups.google.com/d/msgid/golang-nuts/e21d46ff-d151-46fc-ac1d-5da2a153a9fdn%40googlegroups.com >>>>>> <https://groups.google.com/d/msgid/golang-nuts/e21d46ff-d151-46fc-ac1d-5da2a153a9fdn%40googlegroups.com?utm_medium=email&utm_source=footer> >>>>>> . >>>>>> >>>>> -- >>>> You received this message because you are subscribed to the Google >>>> Groups "golang-nuts" group. >>>> To unsubscribe from this group and stop receiving emails from it, send >>>> an email to [email protected]. >>>> >>> To view this discussion on the web visit >>>> https://groups.google.com/d/msgid/golang-nuts/6539ccc0-3a3f-4e40-a268-e45593fc29d1n%40googlegroups.com >>>> <https://groups.google.com/d/msgid/golang-nuts/6539ccc0-3a3f-4e40-a268-e45593fc29d1n%40googlegroups.com?utm_medium=email&utm_source=footer> >>>> . >>>> >>> -- > You received this message because you are subscribed to the Google Groups > "golang-nuts" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/golang-nuts/b66a0650-7afe-411e-b119-28ba63b9f24cn%40googlegroups.com > <https://groups.google.com/d/msgid/golang-nuts/b66a0650-7afe-411e-b119-28ba63b9f24cn%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. 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