diff --git a/llvm/lib/Transforms/Scalar/InstructionCombining.cpp b/llvm/lib/Transforms/Scalar/InstructionCombining.cpp index 1c25bec304b0..9ddd0e0d9231 100644 --- a/llvm/lib/Transforms/Scalar/InstructionCombining.cpp +++ b/llvm/lib/Transforms/Scalar/InstructionCombining.cpp @@ -5456,13 +5456,13 @@ static Value *EmitGEPOffset(User *GEP, Instruction &I, InstCombiner &IC) { } -/// EvaluateGEPOffsetExpression - Return an value that can be used to compare of -/// the *offset* implied by GEP to zero. For example, if we have &A[i], we want -/// to return 'i' for "icmp ne i, 0". Note that, in general, indices can be -/// complex, and scales are involved. The above expression would also be legal -/// to codegen as "icmp ne (i*4), 0" (assuming A is a pointer to i32). This -/// later form is less amenable to optimization though, and we are allowed to -/// generate the first by knowing that pointer arithmetic doesn't overflow. +/// EvaluateGEPOffsetExpression - Return a value that can be used to compare +/// the *offset* implied by a GEP to zero. For example, if we have &A[i], we +/// want to return 'i' for "icmp ne i, 0". Note that, in general, indices can +/// be complex, and scales are involved. The above expression would also be +/// legal to codegen as "icmp ne (i*4), 0" (assuming A is a pointer to i32). +/// This later form is less amenable to optimization though, and we are allowed +/// to generate the first by knowing that pointer arithmetic doesn't overflow. /// /// If we can't emit an optimized form for this expression, this returns null. ///