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8ccce6b8fe
advanced copy optimization. This patch is a step toward transforming: udiv r0, r0, r2 udiv r1, r1, r3 vmov.32 d16[0], r0 vmov.32 d16[1], r1 vmov r0, r1, d16 bx lr into: udiv r0, r0, r2 udiv r1, r1, r3 bx lr Indeed, thanks to this patch, this optimization is able to look through vmov r0, r1, d16 but it does not understand yet vmov.32 d16[0], r0 vmov.32 d16[1], r1 Comming patches will fix that and update the related test case. <rdar://problem/12702965> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216136 91177308-0d34-0410-b5e6-96231b3b80d8
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