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Ignore dbg info, while estimating size of jump through block.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66554 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Devang Patel 2009-03-10 18:00:05 +00:00
parent 075630a158
commit 9200c89968
1 changed files with 3 additions and 1 deletions
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4
lib/Transforms/Utils/SimplifyCFG.cpp
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@ -1112,8 +1112,10 @@ static bool BlockIsSimpleEnoughToThreadThrough(BasicBlock *BB) {
// If this basic block contains anything other than a PHI (which controls the
// branch) and branch itself, bail out. FIXME: improve this in the future.
for (BasicBlock::iterator BBI = BB->begin(); &*BBI != BI; ++BBI, ++Size) {
for (BasicBlock::iterator BBI = BB->begin(); &*BBI != BI; ++BBI) {
if (Size > 10) return false; // Don't clone large BB's.
if (!isa<DbgInfoIntrinsic>(BBI))
++Size;
// We can only support instructions that are do not define values that are
// live outside of the current basic block.