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Diffstat (limited to 'llvm/utils/TableGen/CodeGenDAGPatterns.cpp')
-rw-r--r--llvm/utils/TableGen/CodeGenDAGPatterns.cpp16
1 files changed, 15 insertions, 1 deletions
diff --git a/llvm/utils/TableGen/CodeGenDAGPatterns.cpp b/llvm/utils/TableGen/CodeGenDAGPatterns.cpp
index 19a7874..0b1687d 100644
--- a/llvm/utils/TableGen/CodeGenDAGPatterns.cpp
+++ b/llvm/utils/TableGen/CodeGenDAGPatterns.cpp
@@ -1281,6 +1281,17 @@ std::string TreePredicateFn::getCodeToRunOnSDNode() const {
// PatternToMatch implementation
//
+static bool isImmAllOnesAllZerosMatch(const TreePatternNode *P) {
+ if (!P->isLeaf())
+ return false;
+ DefInit *DI = dyn_cast<DefInit>(P->getLeafValue());
+ if (!DI)
+ return false;
+
+ Record *R = DI->getDef();
+ return R->getName() == "immAllOnesV" || R->getName() == "immAllZerosV";
+}
+
/// getPatternSize - Return the 'size' of this pattern. We want to match large
/// patterns before small ones. This is used to determine the size of a
/// pattern.
@@ -1320,6 +1331,8 @@ static unsigned getPatternSize(const TreePatternNode *P,
Size += 5; // Matches a ConstantSDNode (+3) and a specific value (+2).
else if (Child->getComplexPatternInfo(CGP))
Size += getPatternSize(Child, CGP);
+ else if (isImmAllOnesAllZerosMatch(Child))
+ Size += 4; // Matches a build_vector(+3) and a predicate (+1).
else if (!Child->getPredicateCalls().empty())
++Size;
}
@@ -2126,7 +2139,8 @@ static TypeSetByHwMode getImplicitType(Record *R, unsigned ResNo,
}
if (R->getName() == "node" || R->getName() == "srcvalue" ||
- R->getName() == "zero_reg") {
+ R->getName() == "zero_reg" || R->getName() == "immAllOnesV" ||
+ R->getName() == "immAllZerosV") {
// Placeholder.
return TypeSetByHwMode(); // Unknown.
}