How to run "always-inline" pass using new pass manager and opt

Beginners
,
1

I have added a print statement in AlwaysInline.cpp file . I want to run this “always-inline” pass using new pass manger .

What would be the command in opt to get the output from AlwaysInline.cpp . My main aim is to disable passes of O3 level one by one . However , I want to get the print statement after running the pass -‘always-inline’

Can I get help .

2

Do you want the IR output from always-inline, or the print to stdout?

3

I want stdoit from always online pass

On Thu, May 25, 2023, 4:47 AM Henrik G. Olsson via LLVM Discussion Forums <notifications@llvm.discoursemail.com> wrote:

hnrklssn
May 25

Do you want the IR output from always-inline, or the print to stdout?

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4

I want to get output from ‘always-inline’ pass . I have put some print statements in that pass and want to get the output after running it .

On Thu, May 25, 2023, 5:01 AM soma pal <soma.pal1@gmail.com> wrote:

I want stdoit from always online pass

On Thu, May 25, 2023, 4:47 AM Henrik G. Olsson via LLVM Discussion Forums <notifications@llvm.discoursemail.com> wrote:

hnrklssn
May 25

Do you want the IR output from always-inline, or the print to stdout?

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5

You should not have to do anything special to get the output from printing to stdout.

6

but I am not getting any output .
How to run this pass to see the output .

On Thu, May 25, 2023 at 9:23 AM Henrik G. Olsson via LLVM Discussion Forums <notifications@llvm.discoursemail.com> wrote:

hnrklssn
May 25

You should not have to do anything special to get the output from printing to stdout.

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7

Hi @soma_p, please can you provide the print statement you’ve added?

Running
opt -S --passes=always-inline source.ll
will execute the pass, but you may need to add a "-debug’ flag if you’re using the LLVM_DEBUG macro to wrap your print e.g.

LLVM_DEBUG(dbgs() << "Hello debug world.");

8

Thanks for your response . I will try that .

On Thu, May 25, 2023 at 10:22 AM Chris Jackson via LLVM Discussion Forums <notifications@llvm.discoursemail.com> wrote:

chrisjbris
May 25

Hi @soma_p, please can you provide the print statement you’ve added?

Running ‘opt -S --passes=always-inline source.ll’ will run the pass, but you may need to add a "-debug’ flag if you’re using the LLVM_DEBUG macro to wrap your print e.g.

LLVM_DEBUG(dbgs() << "Hello debug world.");

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