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[ADT] Add DenseSet::insert_range #131567

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Merged
merged 2 commits into from
Mar 17, 2025
Merged

[ADT] Add DenseSet::insert_range #131567

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88a4372
[ADT] Add DenseSet::insert_range
kazutakahirata Mar 17, 2025
e6157a1
Address a comment.
kazutakahirata Mar 17, 2025
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5 changes: 5 additions & 0 deletions llvm/include/llvm/ADT/DenseSet.h
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Original file line number Diff line number Diff line change
Expand Up @@ -14,6 +14,7 @@
#ifndef LLVM_ADT_DENSESET_H
#define LLVM_ADT_DENSESET_H

#include "llvm/ADT/ADL.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/DenseMapInfo.h"
#include "llvm/Support/MathExtras.h"
Expand Down Expand Up @@ -237,6 +238,10 @@ class DenseSetImpl {
for (; I != E; ++I)
insert(*I);
}

template <typename Range> void insert_range(Range &&R) {
insert(adl_begin(R), adl_end(R));
}
};

/// Equality comparison for DenseSet.
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11 changes: 11 additions & 0 deletions llvm/unittests/ADT/DenseSetTest.cpp
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Expand Up @@ -32,6 +32,17 @@ TEST(DenseSetTest, DoubleEntrySetTest) {
EXPECT_EQ(0u, set.count(2));
}

TEST(DenseSetTest, InsertRange) {
llvm::DenseSet<unsigned> set1;
llvm::DenseSet<unsigned> set2;
set1.insert(1);
set1.insert(2);
set1.insert(3);
constexpr unsigned Args[] = {3, 1, 2};
set2.insert_range(Args);
EXPECT_EQ(set1, set2);
}

struct TestDenseSetInfo {
static inline unsigned getEmptyKey() { return ~0; }
static inline unsigned getTombstoneKey() { return ~0U - 1; }
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