[LLVMdev] -stats prints nothing, though something is expected

[Philip Reames]

You are mostly likely using a Release build.  -stats only does anything 
with Assertions enabled.

On 02/18/2015 08:58 AM, Rob Stewart wrote:
> Given the program:
>
> int sum(int i,int j)
> { return i+j; }
>
> int main()
> { sum(3,2); }
>
> $ clang -S -emit-llvm foo.c
>
> Now I'd like to print all statistics. Unfortunately, the following 
> prints nothing:
>
> $ opt -S -O3 -stats < foo.ll > /dev/null
>
> However, running the following prints an IR that is different to the 
> contents of foo.ll:
>
> $ opt -S -O3 foo.ll
>
> I'm using LLVM 3.5. I'm doing something very obviously wrong. What is it?
>
> --
> Rob
>
>
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