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2010 Nov 25
2
[LLVMdev] using bugpoint in a complex ruby code build case
Hi all,
I've been running into what appears to be an optimization bug in llvm,
while compiling
the latest ruby 1.9.3 with the latest llvm/clang 2.9 version. From
hands on experimentation
I do know that the gvn pass for the "vm.c" compilation is the culprit
of the miscompilation
(clang -O2/-O3 options produce the miscompilation, however -O1 is
fine!). I've also tried
to
2010 Nov 28
0
[LLVMdev] using bugpoint in a complex ruby code build case
> Due to the lack of bugpoint examples in the documentation, I have no
> idea how to use bugpoint
> in this complex case, where vm.o firstly needs to be linked with lots
> of other compiled modules
> and libraries, then the resulting program needs to be executed with
> some parameters!
It should be possible. I did something like that for debugging a clang
bootstrap. What I did