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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"uni normalize removes NOP delay slots generated from .asm.mir file ","articleBody":"When running uni normalize for Mips the delay slots two of the delay slots (NOPs) in .asm.mir file do not appear in the .llvm.mir file:\r\n\r\n``` \r\nuni normalize --target=Mips sphinx3.glist.glist_tail.asm.mir -o sphinx3.glist.glist_tail.llvm.mir\r\n```\r\n\r\n```bash\r\ncat sphinx3.glist.glist_tail.asm.mir\r\n```\r\n```llvm\r\nbody:             |\r\n  bb.0 (%ir-block.0, freq 8):\r\n    successors: %bb.2..loopexit(37), %bb.1..preheader(62)\r\n    liveins: %a0\r\n  \r\n    BEQ %a0, %zero, %bb.2..loopexit, implicit-def dead %at {\r\n      %v0 = ADDiu %zero, 0\r\n    }\r\n  \r\n  bb.1..preheader (freq 159):\r\n    successors: %bb.2..loopexit(3), %bb.1..preheader(96)\r\n    liveins: %a0\r\n  \r\n    %v0 = OR killed %a0, %zero\r\n    %a0 = LW %v0, 8 :: (load 4 from %ir.2, align 8)\r\n    BNE %a0, %zero, %bb.1..preheader, implicit-def %at {\r\n      NOP\r\n    }\r\n  \r\n  bb.2..loopexit (freq 8):\r\n    liveins: %v0\r\n    liveouts:\r\n  \r\n    PseudoReturn %ra {\r\n      NOP\r\n    }\r\n\r\n...\r\n```\r\nand \r\n```bash\r\ncat sphinx3.glist.glist_tail.llvm.mir\r\n```\r\n```llvm\r\nname:            glist_tail\r\nbody:             |\r\n  bb.0 (freq 8):\r\n    successors: %bb.2(1), %bb.1(2)\r\n  \r\n    BEQ %a0, %zero, %bb.2, implicit %at, implicit-def %at {\r\n      %v0 = ADDiu %zero, 0\r\n    }\r\n  \r\n  bb.1 (freq 159):\r\n    successors: %bb.1(1), %bb.2(2)\r\n  \r\n    %v0 = OR %a0, %zero\r\n    %a0 = LW %v0, 8\r\n    BNE %a0, %zero, %bb.1, implicit %at, implicit-def %at\r\n  \r\n  bb.2 (freq 8):\r\n  \r\n    PseudoReturn %ra\r\n\r\n...\r\n```","author":{"url":"https://github.com/romits800","@type":"Person","name":"romits800"},"datePublished":"2020-03-05T12:09:49.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":1},"url":"https://github.com/49/unison/issues/49"}