[llvm-bugs] [Bug 33030] ARM: Builtins should use AAPCS ABI for non-windows platforms

via llvm-bugs llvm-bugs at lists.llvm.org
Mon May 15 10:02:16 PDT 2017


Saleem Abdulrasool <compnerd at compnerd.org> changed:

           What    |Removed                     |Added
             Status|NEW                         |RESOLVED
         Resolution|---                         |INVALID

--- Comment #4 from Saleem Abdulrasool <compnerd at compnerd.org> ---
The ABI definition here is correct.  When targeting
`arm*-unknown-linux-gnueabi`, the CC should be `AAPCS`.  However, when
targeting `arm*-unknown-linux-gnueabihf` the CC should be `AAPCS VFP`.  We
adjust the CC in the backend during the ISelLowering setup.  FWIW, this matches
the behaviour of GCC, and is needed for compatibility.

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