[LLVMdev] PATCH: Use size reduction -- wave1

[heisenbug]

On Apr 4, 7:51 pm, Török Edwin <edwinto... at gmail.com> wrote:
> heisenbug wrote:
> > On Apr 3, 10:53 pm, Gabor Greif <ga... at mac.com> wrote:
> > ...
>
> >>> 3) Make sure that make check and some reasonable subset of llvm-test
> >>> passes with this patch :)
>
> >> I have never run llvm-test in the past. Is it just checking it out and
> >> following a readme?
>
> > After building an llvm-gcc (4.2.1), see below, I tried running this. I
> > configured:
>
> > ./configure --with-llvmsrc=$LLVM_TOP/llvm --with-llvmobj=$LLVM_TOP/
> > llvm --srcdir=$LLVM_TOP/test-suite --with-llvmgccdir=$LLVM_TOP/install
> > --with-externals=$LLVM_TOP/externals
>
> > Then 'make', it complained that some .bc file could not be made.
>
> > Then I put $LLVM_TOP/install and $LLVM_TOP/llvm/Release/bin im my
> > path, but now
>
> > checking for C++ compiler default output file name... configure:
> > error: C++ compiler cannot create executables
>
> > invoking g++ directly gives:
>
> > ggreif$ g++ jj.cpp
> > /usr/bin/ld: can't locate file for: -lstdc++
>
> > I am stuck. What can I do to run the tests?
>
> Did you do a make install? It is probably searching for libstdc++ from
> the g++ you just built.

yes. into $LLVM_TOP/install

> I usually add a "--program-prefix=llvm-" to configure, and then I can
> just do a make install into /usr/local without
> interfering with system's gcc/g++.

Okay, will try this route

>
> But for running llvm-test I think you should have system's gcc/g++ on
> your path and not llvm-gcc/llvm-g++.
> If I understand correctly, the purpose of the testsuite is to test
> system gcc/g++ vs. LLC vs. CBE vs. JIT.

point taken. thanks!

>
> Best regards,
> --Edwin
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