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Tidy up BasicBlock::getFirstNonPHI, and change a bunch of places to

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use it instead of duplicating its functionality.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51499 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman
2008-05-23 21:05:58 +00:00
parent ee335e35ac
commit 02dea8b39f
16 changed files with 38 additions and 62 deletions
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6
lib/Transforms/Scalar/IndVarSimplify.cpp
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@@ -319,8 +319,7 @@ void IndVarSimplify::RewriteLoopExitValues(Loop *L) {
BlockToInsertInto = ExitBlocks[0];
else
BlockToInsertInto = Preheader;
BasicBlock::iterator InsertPt = BlockToInsertInto->begin();
while (isa<PHINode>(InsertPt)) ++InsertPt;
BasicBlock::iterator InsertPt = BlockToInsertInto->getFirstNonPHI();
bool HasConstantItCount = isa<SCEVConstant>(SE->getIterationCount(L));
@@ -535,8 +534,7 @@ bool IndVarSimplify::runOnLoop(Loop *L, LPPassManager &LPM) {
// Now that we have a canonical induction variable, we can rewrite any
// recurrences in terms of the induction variable. Start with the auxillary
// induction variables, and recursively rewrite any of their uses.
BasicBlock::iterator InsertPt = Header->begin();
while (isa<PHINode>(InsertPt)) ++InsertPt;
BasicBlock::iterator InsertPt = Header->getFirstNonPHI();
// If there were induction variables of other sizes, cast the primary
// induction variable to the right size for them, avoiding the need for the