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[CodeGen][LLT] Add isFixedVector and isScalableVector #71713

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Merged
merged 1 commit into from
Nov 9, 2023
Merged

[CodeGen][LLT] Add isFixedVector and isScalableVector #71713

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8 changes: 8 additions & 0 deletions llvm/include/llvm/CodeGen/LowLevelType.h
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Original file line number Diff line number Diff line change
Expand Up @@ -163,6 +163,14 @@ class LLT {
: getFieldValue(VectorScalableFieldInfo);
}

/// Returns true if the LLT is a fixed vector. Returns false otherwise, even
/// if the LLT is not a vector type.
constexpr bool isFixedVector() const { return isVector() && !isScalable(); }

/// Returns true if the LLT is a scalable vector. Returns false otherwise,
/// even if the LLT is not a vector type.
constexpr bool isScalableVector() const { return isVector() && isScalable(); }

constexpr ElementCount getElementCount() const {
assert(IsVector && "cannot get number of elements on scalar/aggregate");
return ElementCount::get(IsPointer
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14 changes: 14 additions & 0 deletions llvm/unittests/CodeGen/LowLevelTypeTest.cpp
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Expand Up @@ -412,4 +412,18 @@ TEST(LowLevelTypeTest, ConstExpr) {
EXPECT_EQ(LLT::pointer(0, 32), CEP0);
EXPECT_EQ(LLT::scalable_vector(2, 32), CESV2S32);
}

TEST(LowLevelTypeTest, IsFixedVector) {
EXPECT_FALSE(LLT::scalar(32).isFixedVector());
EXPECT_TRUE(LLT::fixed_vector(2, 32).isFixedVector());
EXPECT_FALSE(LLT::scalable_vector(2, 32).isFixedVector());
EXPECT_FALSE(LLT::scalable_vector(1, 32).isFixedVector());
}

TEST(LowLevelTypeTest, IsScalableVector) {
EXPECT_FALSE(LLT::scalar(32).isScalableVector());
EXPECT_FALSE(LLT::fixed_vector(2, 32).isScalableVector());
EXPECT_TRUE(LLT::scalable_vector(2, 32).isScalableVector());
EXPECT_TRUE(LLT::scalable_vector(1, 32).isScalableVector());
}
}