llvm dev - Oct 2013 - [LLVMdev] C constructs to generate some of LLVM IR instructions?

Hi,

 I was studying the LLVM IR instruction set by analyzing how constructs in
C language is getting converted to IR form.

I found difficulty in finding C constructs which could generate Invoke,
Resume, Unreachable, ExtractValue, InsertValue instructions. Can someone
help me find some simple C code that generates these instructions in LLVM
IR?

-- 
Regards,
Rekha
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On Tue, Oct 8, 2013 at 9:53 AM, Rekha R <rekharamapai at nitc.ac.in>
wrote:
> Hi,
>
>  I was studying the LLVM IR instruction set by analyzing how constructs in
> C language is getting converted to IR form.
>
> I found difficulty in finding C constructs which could generate Invoke,
> Resume, Unreachable, ExtractValue, InsertValue instructions. Can someone
> help me find some simple C code that generates these instructions in LLVM
> IR?
>
A great way to find such information is search in the tests directory of
clang. So if you have clang checked out into the LLVM tree, run a recursive
grep over all C files in 'tools/clang/tests'

Eli
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On 8 October 2013 17:53, Rekha R <rekharamapai at nitc.ac.in> wrote:
> Hi,
>
>  I was studying the LLVM IR instruction set by analyzing how constructs in
> C language is getting converted to IR form.
>
> I found difficulty in finding C constructs which could generate Invoke,
> Resume, Unreachable, ExtractValue, InsertValue instructions. Can someone
> help me find some simple C code that generates these instructions in LLVM
> IR?
>
>
I have attempted to use the C API to LLVM in the past, and I have found
that it does not always expose all the features one might need.
For my project I used the C++ API to LLVM and then created my own C API to
it.
I am only talking as a user, and not an LLVM developer.
That combined with the clang -march=cpp feature makes using the C++ API to
create LLVM IR a lot easier.

James
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