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PHINode::Create() giving the (known or expected) number of operands.
llvm-svn: 128537
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llvm-svn: 128535
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should be that if the phi is used by a side-effect free instruction with
no uses then the phi and the instruction now get zapped (checked by the
unittest).
llvm-svn: 126124
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test for that. With this change, test/CodeGen/X86/codegen-dce.ll no longer finds
any instructions to DCE, so delete the test.
Also renamed J and JP to I and IP in RecursivelyDeleteDeadPHINode.
llvm-svn: 126088
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by Andrew Clinton!
llvm-svn: 126077
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