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[LSR] Recognize vscale-relative immediates #88124

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Merged
huntergr-arm merged 4 commits into from
Jul 1, 2024
Merged

[LSR] Recognize vscale-relative immediates #88124

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3a04cf7
Test cases for vscale immediates
huntergr-arm May 14, 2024
557a097
Convert LSR to use possibly-scalable Immediate type
huntergr-arm May 15, 2024
6265205
Scalable work
huntergr-arm May 14, 2024
f5e8555
Add isFixed, getZero, getScalableFixedMin/Max convenience methods
huntergr-arm Jun 18, 2024
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3 changes: 3 additions & 0 deletions llvm/include/llvm/Support/TypeSize.h
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Original file line number Diff line number Diff line change
Expand Up @@ -170,6 +170,9 @@ template <typename LeafTy, typename ValueTy> class FixedOrScalableQuantity {
/// Returns whether the quantity is scaled by a runtime quantity (vscale).
constexpr bool isScalable() const { return Scalable; }

/// Returns true if the quantity is not scaled by vscale.
constexpr bool isFixed() const { return !Scalable; }

/// A return value of true indicates we know at compile time that the number
/// of elements (vscale * Min) is definitely even. However, returning false
/// does not guarantee that the total number of elements is odd.
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