[llvm-bugs] [Bug 26305] [X86] Failing to tail call with bool parameter

via llvm-bugs llvm-bugs at lists.llvm.org
Wed Mar 9 10:37:24 PST 2016


https://llvm.org/bugs/show_bug.cgi?id=26305

Hans Wennborg <hans at chromium.org> changed:

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

--- Comment #1 from Hans Wennborg <hans at chromium.org> ---
This was fixed in r262575.


This test case is also interesting in x86_64, where LLVM will do the tail call,
but first reduntantly zext's the argument.

I sent a patch out: http://reviews.llvm.org/D17973, but the ABI situation is
pretty confusing and the benefits probably not that big, so I'm putting that on
the back burner.

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