Displaying 2 results from an estimated 2 matches for "_builtin_return_address".
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__builtin_return_address
2018 Sep 05
2
How to get return address at llvm ir level?
To my knowledge that intrinsic IS generated by frontends like Clang when using _builtin_return_address(), i could be wrong though
Zhang
> 在 2018年9月5日，10:47，Bekket McClane via llvm-dev <llvm-dev at lists.llvm.org> 写道：
>
> and
2018 Sep 05
3
How to get return address at llvm ir level?
Hi
I want to write a FunctionPass to insert some code before return.
Funcion:
..
..
..
mov eax,[esp]
cmp eax,0x12345678
je 0x12345678
ret
(maybe stack will not balance)
I wonder that can I get the return address at llvm ir level?
I use IRBuilder to CreateICmpEQ and CreateCondBr.
but I don't how to get the value of return addrss.
I have found there is a Intrinsic::returnaddress.
Is