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00352310aa
...when the shift is known to not overflow with the matching signed-ness of the division. This closes an optimization gap caused by canonicalizing mul by power-of-2 to shl as shown in PR35709: https://bugs.llvm.org/show_bug.cgi?id=35709 Patch by Anton Bikineev! Differential Revision: https://reviews.llvm.org/D42032 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@323068 91177308-0d34-0410-b5e6-96231b3b80d8