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Stable: Compatibility fixes for LLVM 3.5 #25739

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Stable: Compatibility fixes for LLVM 3.5 #25739

wants to merge 2 commits into from

Commits on May 23, 2015

  1. rustc_trans: don't hardcode llvm version for conditional intrinsics 

    This commit introduce a third parameter for compatible_ifn!, as new
intrinsics are being added in recent LLVM releases and there is no
need to hardcode a specific case.

Signed-off-by: Luca Bruno <[email protected]>
    @lucab @davidvoit
    lucab authored and davidvoit committed May 23, 2015
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  2. rustc_trans: 'assume' intrinsic is only available on LLVM >= 3.6 

    Based on the patch from Luca Bruno.

Instead of creating an empty C function in the rt, this version creates an shim
noop function using llvm. This function is declared as internal, and the
unsupported assume intrinsic and the shim gets completly removed by the
optimizer.
    @davidvoit
    davidvoit committed May 23, 2015
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