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[AArch64] Fix a presumed typo in isFPImmLegal limit. NFC #106716

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merged 2 commits into from
Aug 30, 2024
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[AArch64] Fix a presumed typo in isFPImmLegal limit. NFC #106716

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74667af
[AArch64] Fix a presumed typo in isFPImmLegal limit. NFC
citymarina Aug 30, 2024
a39c487
Add message to assert
citymarina Aug 30, 2024
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3 changes: 2 additions & 1 deletion llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -11463,7 +11463,8 @@ bool AArch64TargetLowering::isFPImmLegal(const APFloat &Imm, EVT VT,
// movw+movk is fused). So we limit up to 2 instrdduction at most.
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Do you mind changing instrdduction to instructions whilst you are here?

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Oh - you remove it in a follow up. Don't worry about it here then.

SmallVector<AArch64_IMM::ImmInsnModel, 4> Insn;
AArch64_IMM::expandMOVImm(ImmInt.getZExtValue(), VT.getSizeInBits(), Insn);
unsigned Limit = (OptForSize ? 1 : (Subtarget->hasFuseLiterals() ? 5 : 2));
assert(Insn.size() <= 4);
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unsigned Limit = (OptForSize ? 1 : (Subtarget->hasFuseLiterals() ? 4 : 2));
IsLegal = Insn.size() <= Limit;
}

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