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fa9e4b52f4
This helps the instruction selector to lower an i64 * i64 -> i128 multiplication into a single instruction on targets which support it. Patch by Manuel Jacob. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203230 91177308-0d34-0410-b5e6-96231b3b80d8
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