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Subzero: Clean up the runtime implementation. · c4508791Jim Stichnoth authored
The runtime helpers are given more consistent names: __Sz_<bitcode>_<type1>_<type2> Missing helpers (various vector bitcasts) are implemented. We'd prefer to avoid calling external library functions, e.g. in compiler-rt, but even llc uses these helpers for some bitcode on x86-32, so the alternative is to copy their implementation into Subzero's runtime. BUG= none R=mtrofin@chromium.org Review URL: https://codereview.chromium.org/961413002
c4508791
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