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@@ -486,6 +486,23 @@ unsigned MachineJumpTableInfo::getJumpTableIndex(
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return JumpTables.size()-1;
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}
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+/// ReplaceMBBInJumpTables - If Old is the target of any jump tables, update
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+/// the jump tables to branch to New instead.
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+bool
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+MachineJumpTableInfo::ReplaceMBBInJumpTables(MachineBasicBlock *Old,
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+ MachineBasicBlock *New) {
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+ assert(Old != New && "Not making a change?");
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+ bool MadeChange = false;
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+ for (size_t i = 0, e = JumpTables.size(); i != e; ++i) {
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+ MachineJumpTableEntry &JTE = JumpTables[i];
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+ for (size_t j = 0, e = JTE.MBBs.size(); j != e; ++j)
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+ if (JTE.MBBs[j] == Old) {
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+ JTE.MBBs[j] = New;
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+ MadeChange = true;
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+ }
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+ }
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+ return MadeChange;
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+}
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void MachineJumpTableInfo::print(std::ostream &OS) const {
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// FIXME: this is lame, maybe we could print out the MBB numbers or something
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