determine whether a change was made

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31265 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2006-10-28 18:00:05 +00:00
parent ef13982aa7
commit 5bd0c00b80

View File

@ -57,13 +57,17 @@ public:
/// ReplaceMBBInJumpTables - If Old is the target of any jump tables, update
/// the jump tables to branch to New instead.
void ReplaceMBBInJumpTables(MachineBasicBlock *Old, MachineBasicBlock *New) {
bool ReplaceMBBInJumpTables(MachineBasicBlock *Old, MachineBasicBlock *New) {
bool MadeChange = false;
for (unsigned i = 0, e = JumpTables.size(); i != e; ++i) {
MachineJumpTableEntry &JTE = JumpTables[i];
for (unsigned j = 0, e = JTE.MBBs.size(); j != e; ++j)
if (JTE.MBBs[j] == Old)
if (JTE.MBBs[j] == Old) {
JTE.MBBs[j] = New;
MadeChange = true;
}
}
return MadeChange;
}
/// getEntrySize - returns the size of an individual field in a jump table