[LLVMdev] Convert an llvm:ICmpInst to llvm::FCmpInst

[Zhoulai]

Hi, all

I am writing an LLVM pass in which I need to convert an llvm::ICmpInst,
denoted by 'inst' below,  to llvm::FCmpInst.

My current approach is somewhat clumsy: I first retrieve the operands of
'inst', then convert those operands of int type to double typed values, and
then create a new llvm::FCmpInst with the double typed values. This is
clumsy because I also need to determine the different types of the integer
operands, such as int32, int64, etc.

So, is there a simpler way to convert an llvm::ICmpInst to llvm::FCmpInst?
Thanks.

Sincerely,
Zhoulai
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