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[mips] Add options to disable searching backward and in successor blocks.
llvm-svn: 176321
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01c253f718
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@ -53,6 +53,18 @@ static cl::opt<bool> DisableForwardSearch(
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cl::desc("Disallow MIPS delay filler to search forward."),
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cl::Hidden);
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static cl::opt<bool> DisableSuccBBSearch(
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"disable-mips-df-succbb-search",
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cl::init(true),
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cl::desc("Disallow MIPS delay filler to search successor basic blocks."),
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cl::Hidden);
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static cl::opt<bool> DisableBackwardSearch(
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"disable-mips-df-backward-search",
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cl::init(false),
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cl::desc("Disallow MIPS delay filler to search backward."),
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cl::Hidden);
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namespace {
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class RegDefsUses {
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public:
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