Returning i1 type ints from C code ?

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1

Hi,

I was wondering if there was any way to return an i1 type (or something that llvm would accept as one, internally) from a C function compiled with llvm-gcc. My thought from searching around was that it might take rewriting (or at least writing a wrapper to %trunc the result) in assembly. I’m fairly new to LLVM so I may have missed something important.

Any thoughts ?

Thanks much,

Gordon Keiser

2

Hi Gordon,

I was wondering if there was any way to return an i1 type (or something that
llvm would accept as one, internally) from a C function compiled with llvm-gcc.

no, there is no way without modifying llvm-gcc.

Ciao, Duncan.

3

Hi Gordon,

Clang can do it if you include <stdbool.h> . I found this out when writing a LibC wrapper library for LLVM Bitcode.

--Sam

4

Hi,

Good to know. I tried that last night with llvm-gcc just in case, but alas, it didn't help. Good to know that Clang supports it for the future though.

Thanks everyone,
Gordon