diff options
| author | Alexey Samsonov <vonosmas@gmail.com> | 2015-06-11 18:25:54 +0000 |
|---|---|---|
| committer | Alexey Samsonov <vonosmas@gmail.com> | 2015-06-11 18:25:54 +0000 |
| commit | bc482286fcf06ba573338c5712daac85eaf48722 (patch) | |
| tree | 9b4b20ef60575717e682385bbf065e2cf0118aa5 /lib/IR/BasicBlock.cpp | |
| parent | 7356846f65b17760b5ef70e5e05ffed83366990f (diff) | |
Set proper debug location for branch added in BasicBlock::splitBasicBlock().
This improves debug locations in passes that do a lot of basic block
transformations. Important case is LoopUnroll pass, the test for correct
debug locations accompanies this change.
Test Plan: regression test suite
Reviewers: dblaikie, sanjoy
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D10367
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239551 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/IR/BasicBlock.cpp')
| -rw-r--r-- | lib/IR/BasicBlock.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/IR/BasicBlock.cpp b/lib/IR/BasicBlock.cpp index 70ae3c39842..77cb10d5b6b 100644 --- a/lib/IR/BasicBlock.cpp +++ b/lib/IR/BasicBlock.cpp @@ -362,12 +362,15 @@ BasicBlock *BasicBlock::splitBasicBlock(iterator I, const Twine &BBName) { BasicBlock *New = BasicBlock::Create(getContext(), BBName, getParent(), InsertBefore); + // Save DebugLoc of split point before invalidating iterator. + DebugLoc Loc = I->getDebugLoc(); // Move all of the specified instructions from the original basic block into // the new basic block. New->getInstList().splice(New->end(), this->getInstList(), I, end()); // Add a branch instruction to the newly formed basic block. - BranchInst::Create(New, this); + BranchInst *BI = BranchInst::Create(New, this); + BI->setDebugLoc(Loc); // Now we must loop through all of the successors of the New block (which // _were_ the successors of the 'this' block), and update any PHI nodes in |