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Artur Pilipenko
81b9dd6378
[x86] X86ISelLowering zext(add_nuw(x, C)) --> add(zext(x), C_zext)
Currently X86ISelLowering has a similar transformation for sexts: sext(add_nsw(x, C)) --> add(sext(x), C_sext) In this change I extend this code to handle zexts as well. Reviewed By: spatel Differential Revision: https://reviews.llvm.org/D23359 llvm-svn: 278520
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