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take multiple cycles to decode.
For the current if-converter clients (actually only ARM), the instructions that
are predicated on false are not nops. They would still take machine cycles to
decode. Micro-coded instructions such as LDM / STM can potentially take multiple
cycles to decode. If-converter should take treat them as non-micro-coded
simple instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113570 91177308-0d34-0410-b5e6-96231b3b80d8
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(conservatively) aware of predicated instructions. This enables ARM to move if-conversion before post-ra scheduler.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106091 91177308-0d34-0410-b5e6-96231b3b80d8
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- Rename ExactHazardRecognizer to PostRAHazardRecognizer and move its header to include to allow targets to extend it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105959 91177308-0d34-0410-b5e6-96231b3b80d8
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