llvm dev - May 2013 - [LLVMdev] convert switch stmts to If statements

Hi All,
   Is there a pass in llvm that converts switch statements to if statements?

George
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----- Original Message -----
> From: "George Baah" <georgebaah at gmail.com>
> To: "LLVM Developers Mailing List" <llvmdev at cs.uiuc.edu>
> Sent: Monday, May 6, 2013 3:09:33 PM
> Subject: [LLVMdev] convert switch stmts to If statements
> 
> 
> 
> 
> Hi All, Is there a pass in llvm that converts switch statements to if
> statements?
> 
What do you mean by convert? SelectionDAGBuilder::visitSwitch in
lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp converts the switch statements
for code generation either into indirect jump tables or into binary-search trees
(which I suppose you could call if statements).

 -Hal
> 
> George
> _______________________________________________
> LLVM Developers mailing list
> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
>

I mean an llvm Pass that transforms switch statements into if statements.
For example, if I have code with switch statements then running the pass
will convert all switches to ifs in the bytecode.

George


On Mon, May 6, 2013 at 4:20 PM, Hal Finkel <hfinkel at anl.gov> wrote:
> ----- Original Message -----
> > From: "George Baah" <georgebaah at gmail.com>
> > To: "LLVM Developers Mailing List" <llvmdev at
cs.uiuc.edu>
> > Sent: Monday, May 6, 2013 3:09:33 PM
> > Subject: [LLVMdev] convert switch stmts to If statements
> >
> >
> >
> >
> > Hi All, Is there a pass in llvm that converts switch statements to if
> > statements?
> >
>
> What do you mean by convert? SelectionDAGBuilder::visitSwitch in
> lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp converts the switch
> statements for code generation either into indirect jump tables or into
> binary-search trees (which I suppose you could call if statements).
>
>  -Hal
>
> >
> > George
> > _______________________________________________
> > LLVM Developers mailing list
> > LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
> > http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
> >
>
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