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e49180d84c
This adds support for Xqccmp to the following passes: - Prolog Epilog Insertion - reusing much of the existing push/pop logic, but extending it to cope with frame pointers and reorder the CFI information correctly. - Move Merger - extending it to support the `qc.` variants of the double-move instructions. - Push/Pop Optimizer - extending it to support the `qc.` variants of the pop instructions. The testing is based on existing Zcmp tests, but I have put them in separate files as some of the Zcmp tests were getting quite long.
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