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[AArch64][GlobalISel] Legalize more CTPOP vector types. #131513

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Merged
merged 1 commit into from
Mar 20, 2025
Merged

[AArch64][GlobalISel] Legalize more CTPOP vector types. #131513

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1 change: 1 addition & 0 deletions llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -6140,6 +6140,7 @@ LegalizerHelper::moreElementsVector(MachineInstr &MI, unsigned TypeIdx,
case TargetOpcode::G_SEXT_INREG:
case TargetOpcode::G_ABS:
case TargetOpcode::G_CTLZ:
case TargetOpcode::G_CTPOP:
if (TypeIdx != 0)
return UnableToLegalize;
Observer.changingInstr(MI);
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8 changes: 7 additions & 1 deletion llvm/lib/Target/AArch64/GISel/AArch64LegalizerInfo.cpp
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Expand Up @@ -323,7 +323,13 @@ AArch64LegalizerInfo::AArch64LegalizerInfo(const AArch64Subtarget &ST)
.clampScalar(0, s32, s128)
.widenScalarToNextPow2(0)
.minScalarEltSameAsIf(always, 1, 0)
.maxScalarEltSameAsIf(always, 1, 0);
.maxScalarEltSameAsIf(always, 1, 0)
.clampNumElements(0, v8s8, v16s8)
.clampNumElements(0, v4s16, v8s16)
.clampNumElements(0, v2s32, v4s32)
.clampNumElements(0, v2s64, v2s64)
.moreElementsToNextPow2(0)
.scalarizeIf(scalarOrEltWiderThan(0, 64), 0);
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Simplify to just scalarize()?


getActionDefinitionsBuilder(G_CTLZ)
.legalFor({{s32, s32},
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