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[AMDGPU] Use std::array in GCNRegPressure (NFC) #164117

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Merged
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Oct 18, 2025
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[AMDGPU] Use std::array in GCNRegPressure (NFC) #164117

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9 changes: 4 additions & 5 deletions llvm/lib/Target/AMDGPU/GCNRegPressure.h
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Original file line number Diff line number Diff line change
Expand Up @@ -21,6 +21,7 @@
#include "llvm/CodeGen/LiveIntervals.h"
#include "llvm/CodeGen/RegisterPressure.h"
#include <algorithm>
#include <array>

namespace llvm {

Expand All @@ -45,7 +46,7 @@ struct GCNRegPressure {
return !Value[SGPR] && !Value[VGPR] && !Value[AGPR] && !Value[AVGPR];
}

void clear() { std::fill(&Value[0], &Value[ValueArraySize], 0); }
void clear() { Value.fill(0); }

unsigned getNumRegs(RegKind Kind) const {
assert(Kind < TOTAL_KINDS);
Expand Down Expand Up @@ -127,9 +128,7 @@ struct GCNRegPressure {
bool less(const MachineFunction &MF, const GCNRegPressure &O,
unsigned MaxOccupancy = std::numeric_limits<unsigned>::max()) const;

bool operator==(const GCNRegPressure &O) const {
return std::equal(&Value[0], &Value[ValueArraySize], O.Value);
}
bool operator==(const GCNRegPressure &O) const { return Value == O.Value; }

bool operator!=(const GCNRegPressure &O) const {
return !(*this == O);
Expand Down Expand Up @@ -160,7 +159,7 @@ struct GCNRegPressure {

/// Pressure for all register kinds (first all regular registers kinds, then
/// all tuple register kinds).
unsigned Value[ValueArraySize];
std::array<unsigned, ValueArraySize> Value;

static unsigned getRegKind(const TargetRegisterClass *RC,
const SIRegisterInfo *STI);
Expand Down