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Roman Lebedev a60037d732 [InstCombine] Canonicalize SPF to abs intrinsic
This patch enables canonicalization of SPF_ABS and SPF_ABS
to the abs intrinsic.

This is a recommit, the original try was
05d4c4ebc2fb006b8a2bd05b24c6aba10dd2eef8,
but it was reverted due to an apparent miscompile,
which since then has just been fixed by the previous commit.

Differential Revision: https://reviews.llvm.org/D87188
2020-12-18 21:18:14 +03:00
2020-03-14 18:08:26 -07:00

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