[llvm-bugs] [Bug 34941] Infinite loop if function name equals intrinsic used in it

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=34941

Eli Friedman <efriedma at codeaurora.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |INVALID
                 CC|                            |efriedma at codeaurora.org

--- Comment #1 from Eli Friedman <efriedma at codeaurora.org> ---
The standard lowering for llvm.floor.f64 on a target which doesn't support it
is a call to the C standard library's floor().  If you define a function named
floor() which doesn't implement the appropriate semantics, you're naturally
going to run into problems.

The only possible alternatives are to emit a complicated inline code sequence,
or define a new compiler-rt function which does exactly the same thing as libm
floor.  But I don't see how either of those is really an improvement.  So I
don't think there's anything to fix here.

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