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Rename metadata llvm.loop.vectorize.unroll to llvm.loop.vectorize.interleave.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213588 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Mark Heffernan
2014-07-21 23:11:03 +00:00
parent 07efe87198
commit bc7f1aba2d
10 changed files with 58 additions and 40 deletions
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26
lib/Transforms/Vectorize/LoopVectorize.cpp
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@ -978,8 +978,8 @@ public:
<< "LV: Unrolling disabled by the pass manager\n");
}
/// Return the loop vectorizer metadata prefix.
static StringRef Prefix() { return "llvm.loop.vectorize."; }
/// Return the loop metadata prefix.
static StringRef Prefix() { return "llvm.loop."; }
MDNode *createHint(LLVMContext &Context, StringRef Name, unsigned V) const {
SmallVector<Value*, 2> Vals;
@ -1001,8 +1001,10 @@ public:
for (unsigned i = 1, ie = LoopID->getNumOperands(); i < ie; ++i)
Vals.push_back(LoopID->getOperand(i));
Vals.push_back(createHint(Context, Twine(Prefix(), "width").str(), Width));
Vals.push_back(createHint(Context, Twine(Prefix(), "unroll").str(), 1));
Vals.push_back(
createHint(Context, Twine(Prefix(), "vectorize.width").str(), Width));
Vals.push_back(
createHint(Context, Twine(Prefix(), "interleave.count").str(), 1));
MDNode *NewLoopID = MDNode::get(Context, Vals);
// Set operand 0 to refer to the loop id itself.
@ -1073,7 +1075,7 @@ private:
if (!S)
continue;
// Check if the hint starts with the vectorizer prefix.
// Check if the hint starts with the loop metadata prefix.
StringRef Hint = S->getString();
if (!Hint.startswith(Prefix()))
continue;
@ -1091,22 +1093,22 @@ private:
if (!C) return;
unsigned Val = C->getZExtValue();
if (Hint == "width") {
if (Hint == "vectorize.width") {
if (isPowerOf2_32(Val) && Val <= MaxVectorWidth)
Width = Val;
else
DEBUG(dbgs() << "LV: ignoring invalid width hint metadata\n");
} else if (Hint == "unroll") {
if (isPowerOf2_32(Val) && Val <= MaxUnrollFactor)
Unroll = Val;
else
DEBUG(dbgs() << "LV: ignoring invalid unroll hint metadata\n");
} else if (Hint == "enable") {
} else if (Hint == "vectorize.enable") {
if (C->getBitWidth() == 1)
Force = Val == 1 ? LoopVectorizeHints::FK_Enabled
: LoopVectorizeHints::FK_Disabled;
else
DEBUG(dbgs() << "LV: ignoring invalid enable hint metadata\n");
} else if (Hint == "interleave.count") {
if (isPowerOf2_32(Val) && Val <= MaxUnrollFactor)
Unroll = Val;
else
DEBUG(dbgs() << "LV: ignoring invalid unroll hint metadata\n");
} else {
DEBUG(dbgs() << "LV: ignoring unknown hint " << Hint << '\n');
}