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Replace {u,i}128_* lang items with __rust_{u,i}128_* unmangled functions #302

Merged
merged 2 commits into from
Jul 19, 2019
Merged

Replace {u,i}128_* lang items with __rust_{u,i}128_* unmangled functions #302

merged 2 commits into from
Jul 19, 2019

Commits on Jul 13, 2019

  1. Replace {u,i}128_* lang items with __rust_{u,i}128_* unmangled functions 

    The -Zlower-128bit-ops feature is completely broken, as libcore needs
those lang items to compile with this feature, but they are only
provided by compiler_builtins, which itself depends on libcore.
According to rust-lang/rust#58969 the feature never got finished.

This commit removes the associated lang items and replaces them with
normal unmangled functions, when there is no existing intrinsic. This
makes it easier for alternative codegen backends to implement 128bit
integer support.
    @bjorn3
    bjorn3 committed Jul 13, 2019
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  2. Fix tests

    @bjorn3
    bjorn3 committed Jul 13, 2019
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