llvm dev - Feb 2012 - [LLVMdev] Call DeadCodeElimination pass of LLVM

Hi,
Please let me know how to follow my pass in LLVM by Dead Code Elimination
pass of LLVM. getAnalysisUsage(...) only allows me to run passes before my
pass. I want to run Dead Code Elimination pass after my pass.

Regards,
Adarsh
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Adarsh HV wrote:
> Hi,
> Please let me know how to follow my pass in LLVM by Dead Code
> Elimination pass of LLVM. getAnalysisUsage(...) only allows me to run
> passes before my pass. I want to run Dead Code Elimination pass after my
> pass.
Your pass does not control that; where the PassManager is created, 
insert your pass, then insert the DCE pass.

Nick

Adarsh,
I believe you want to look at lib/Transforms/IPO/PassManagerBuilder.cpp

 Chad

On Feb 1, 2012, at 12:03 AM, Nick Lewycky wrote:
> Adarsh HV wrote:
>> Hi,
>> Please let me know how to follow my pass in LLVM by Dead Code
>> Elimination pass of LLVM. getAnalysisUsage(...) only allows me to run
>> passes before my pass. I want to run Dead Code Elimination pass after
my
>> pass.
> 
> Your pass does not control that; where the PassManager is created, 
> insert your pass, then insert the DCE pass.
> 
> Nick
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