Found by libstdc++'s debug mode.
llvm-svn: 157522
}
}
}
-
// Rearrange the case blocks so that the last one falls through if possible.
Case &BackCase = *(CR.Range.second-1);
- if (NextBlock && Default != NextBlock && BackCase.BB != NextBlock) {
+ if (Size > 1 &&
+ NextBlock && Default != NextBlock && BackCase.BB != NextBlock) {
// The last case block won't fall through into 'NextBlock' if we emit the
// branches in this order. See if rearranging a case value would help.
// We start at the bottom as it's the case with the least weight.