maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity

LoopUnroll: Change code order of changes to new basic blocks 

Add new basic blocks to `LoopInfo` earlier.  No functionality change
intended (simplifies upcoming bugfix patch).

llvm-svn: 219150
This commit is contained in:
Duncan P. N. Exon Smith 2014-10-06 22:05:02 +00:00
parent 0bbf5418c6
commit e5d7d9797b
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
llvm/lib/Transforms/Utils/LoopUnroll.cpp
View File

@ -308,6 +308,8 @@ bool llvm::UnrollLoop(Loop *L, unsigned Count, unsigned TripCount,
BasicBlock *New = CloneBasicBlock(*BB, VMap, "." + Twine(It));
Header->getParent()->getBasicBlockList().push_back(New);
L->addBasicBlockToLoop(New, LI->getBase());
if (*BB == Header)
// Loop over all of the PHI nodes in the block, changing them to use
// the incoming values from the previous block.
@ -327,8 +329,6 @@ bool llvm::UnrollLoop(Loop *L, unsigned Count, unsigned TripCount,
VI != VE; ++VI)
LastValueMap[VI->first] = VI->second;
L->addBasicBlockToLoop(New, LI->getBase());
// Add phi entries for newly created values to all exit blocks.
for (succ_iterator SI = succ_begin(*BB), SE = succ_end(*BB);
SI != SE; ++SI) {