[LLVMdev] How should LLVM interpreter handle llvm.objectsize.i64

Issac Torvalds lyh.kernel at gmail.com
Thu May 9 07:03:08 PDT 2013

Hello LLVMer,

I use dragonegg to generate LLVM bitcode. Then I use LLVM interpreter to
execute what I get from compilation. However an error occurred and the
message is:
"LLVM ERROR: Code generator does not support intrinsic function
As far as I know, objectsize intrinsic is equivalent to gcc built-in
__builtin_object_size. But I don't call __builtin_object_size explicitly in
source code. Maybe headers what I include call the built-in somewhere. How
I eliminate such built-in function call in LLVM bitcode, or what code
should I
add into IntrinsicLowering.cpp to handle this problem.

Any suggestion or comment is welcomed.

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