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During Loop Strength Reduce, if the terminating condition for the loop is not immediately adjacent to the terminating branch and it has more than one use, a clone of the condition will be created just before the terminating branch and will be used as the branch condition. Currently, whether the instructions are "immediately adjacent" is determined by checking whether the next instruction after the condition is the terminating branch; this is incorrect however, as the presence of a debug intrinsic between the two will result in a change to the output. This is fixed by using getNextNonDebugInstruction() instead. Differential Revision: https://reviews.llvm.org/D103033 |
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