<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2010-03-17</periodOfReport>

    <notSubjectToSection16>1</notSubjectToSection16>

    <issuer>
        <issuerCik>0001050776</issuerCik>
        <issuerName>VIRAGE LOGIC CORP</issuerName>
        <issuerTradingSymbol>VIRL</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001104329</rptOwnerCik>
            <rptOwnerName>CROSSLINK CAPITAL INC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>TWO EMBARCADERO CENTER</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 2200</rptOwnerStreet2>
            <rptOwnerCity>SAN FRANCISCO</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94111</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>1</isOther>
            <officerTitle></officerTitle>
            <otherText>Affiliate of Director</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001298058</rptOwnerCik>
            <rptOwnerName>Delta Growth Management, LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>TWO EMBARCADERO CENTER</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 2200</rptOwnerStreet2>
            <rptOwnerCity>SAN FRANCISCO</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94111</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>1</isOther>
            <officerTitle></officerTitle>
            <otherText>Affiliate of Director</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2010-03-17</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>16600</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>7.97</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1980456</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F2"/>
                    <footnoteId id="F3"/>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See Notes</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">The securities reported as beneficially owned by Crosslink Capital, Inc. (&quot;Crosslink&quot;) on this Form 4 include securities also beneficially owned by Delta Growth Management, LLC (&quot;Delta Growth&quot;), an affiliate of Crosslink.  Crosslink is an investment adviser to investment funds (the &quot;Funds&quot;) of which Delta Growth is the general partner.  Mr. Stark is the control person of Crosslink and Delta Growth.</footnote>
        <footnote id="F2">These securities are indirectly beneficially owned by Crosslink as the investment adviser to the Funds, by Delta Growth as the general partner of the Funds, and by Mr. Stark as the control person of those entities.  Each of Crosslink and Delta Growth disclaims beneficial ownership of such securities except to the extent of that person's pecuniary interest therein.</footnote>
        <footnote id="F3">Crosslink and Delta Growth are filing this Form 4 jointly, but not as a group, and each of them expressly disclaims membership in a group, within the meaning of Rule 13d-5(b) under the Securities Exchange Act of 1934, as amended. These securities are held directly by the Funds. Mr. Stark was a director of the Issuer, but resigned as such in 2009.  Therefore, Crosslink believes that none of Crosslink or any of its affiliates is an insider of the Issuer because they collectively own less than 10% of the Issuer's outstanding common stock.  Therefore, none of them will file further reports under Section 16(a) of the Securities Exchange Act of 1934 with respect to any securities of the Issuer unless otherwise required to do so.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Crosslink Capital, Inc., by Michael J. Stark, Manager</signatureName>
        <signatureDate>2010-03-19</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>Delta Growth Management, LLC, by Michael J. Stark, Manager</signatureName>
        <signatureDate>2010-03-19</signatureDate>
    </ownerSignature>
</ownershipDocument>
