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forces having special checks in ArmInstPrinter::printInstruction. This patch addresses this issue. Not all special checks could be removed: either they involve elaborated conditions under which the alias is emitted (e.g. ldm/stm on sp may be pop/push but only if the number of registers is >= 2) or the number of registers is multivalued (like happens again with ldm/stm) and they do not match the InstAlias pattern which assumes single-valued operands in the pattern. Patch by: Roger Ferrer Ibanez Differential Revision: http://reviews.llvm.org/D20237 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@271667 91177308-0d34-0410-b5e6-96231b3b80d8
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