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Layout loop unrolled blocks next to the original loop.

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This commit is contained in:
Andrew Trick
2018-11-02 17:22:54 -07:00
parent 7c2c047116
commit b06aea022e
1 changed files with 3 additions and 2 deletions
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5
lib/SILOptimizer/LoopTransforms/LoopUnroll.cpp
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@@ -74,7 +74,8 @@ void LoopCloner::cloneLoop() {
Loop->getExitBlocks(ExitBlocks);
// Clone the entire loop.
cloneReachableBlocks(Loop->getHeader(), ExitBlocks);
cloneReachableBlocks(Loop->getHeader(), ExitBlocks,
/*insertAfter*/Loop->getLoopLatch());
}
/// Determine the number of iterations the loop is at most executed. The loop
@@ -93,7 +94,7 @@ static Optional<uint64_t> getMaxLoopTripCount(SILLoop *Loop,
if (!Loop->isLoopExiting(Latch))
return None;
// Get the loop exit condition.
// Get the loop exit condition.
auto *CondBr = dyn_cast<CondBranchInst>(Latch->getTerminator());
if (!CondBr)
return None;