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Fix a comment typo and add comments.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167684 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nadav Rotem 2012-11-11 05:15:00 +00:00
parent bb51ec8b62
commit 9005b8d27d
1 changed files with 5 additions and 4 deletions
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9
lib/Transforms/Vectorize/LoopVectorize.cpp
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@ -79,7 +79,7 @@ VectorizationFactor("force-vector-width", cl::init(0), cl::Hidden,
const unsigned TinyTripCountThreshold = 16;
/// When performing a runtime memory check, do not check more than this
/// numner of pointers. Notice that the check is quadratic!
/// number of pointers. Notice that the check is quadratic!
const unsigned RuntimeMemoryCheckThreshold = 2;
namespace {
@ -118,7 +118,7 @@ public:
/// Widen each instruction in the old loop to a new one in the new loop.
/// Use the Legality module to find the induction and reduction variables.
vectorizeLoop(Legal);
// register the new loop.
// Register the new loop and update the analysis passes.
updateAnalysis();
}
@ -127,7 +127,8 @@ private:
void createEmptyLoop(LoopVectorizationLegality *Legal);
/// Copy and widen the instructions from the old loop.
void vectorizeLoop(LoopVectorizationLegality *Legal);
/// Insert the new loop to the loop hierarchy and pass manager.
/// Insert the new loop to the loop hierarchy and pass manager
/// and update the analysis passes.
void updateAnalysis();
/// This instruction is un-vectorizable. Implement it as a sequence
@ -304,7 +305,7 @@ private:
bool isReductionInstr(Instruction *I, ReductionKind Kind);
/// Returns True, if 'Phi' is an induction variable.
bool isInductionVariable(PHINode *Phi);
/// Return true if we
/// Return true if can compute the address bounds of Ptr within the loop.
bool hasComputableBounds(Value *Ptr);
/// The loop that we evaluate.